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IAD - SEA

$129 Find Cheap Flights from Washington Dulles Airport to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Seattle departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Seattle.
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Cheap Flight Deals from Washington Dulles Airport to Seattle (IAD-SEA)

 
These are the cheapest deals for flights from Dulles Intl to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl to Seattle.

Recent one-way flight deals from Dulles Intl to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Dulles Intl to Seattle found on KAYAK recently.

Recent last minute flight deals from Dulles Intl to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Dulles Intl to Seattle.

Recent direct flight deals from Dulles Intl to Seattle

The latest deals for direct flights from Dulles Intl to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Dulles Intl to Seattle

Find recent round-trip train or bus tickets from Dulles Intl to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:57 pm - 10:00 pmIAD-SEA
6h 03mnonstop
9:54 am - 5:57 pmSEA-IAD
5h 03mnonstop
$257Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
5:25 pm - 9:30 amIAD-SEA
19h 05m1 stop
9:50 am - 5:48 pmSEA-IAD
4h 58mnonstop
$266Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 22
5:15 pm - 8:20 pmIAD-SEA
6h 05mnonstop
11:56 am - 10:59 pmSEA-IAD
8h 03m1 stop
$267United Airlines
Find Deal
Wed, Dec 11 - Tue, Dec 17
6:57 pm - 10:00 pmIAD-SEA
6h 03mnonstop
9:54 am - 5:57 pmSEA-IAD
5h 03mnonstop
$272Alaska Airlines
Find Deal
Wed, Jan 29 - Sun, Feb 2
12:35 pm - 9:20 pmIAD-SEA
11h 45m1 stop
7:00 am - 6:43 pmSEA-IAD
8h 43m1 stop
$282United Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 19
6:20 pm - 9:30 pmIAD-SEA
6h 10mnonstop
7:25 am - 3:25 pmSEA-IAD
5h 00mnonstop
$292Delta
Find Deal
Sat, Dec 14 - Sat, Feb 8
6:10 am - 1:06 pmIAD-SEA
9h 56m1 stop
5:45 pm - 8:41 amSEA-IAD
11h 56m2 stops
$301American Airlines
Find Deal
Fri, Jan 17 - Tue, Jan 21
6:22 am - 12:41 pmIAD-SEA
9h 19m1 stop
11:43 am - 10:41 pmSEA-IAD
7h 58m1 stop
$306American Airlines
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Thu, Jan 9 - Mon, Jan 13
6:20 pm - 9:30 pmIAD-SEA
6h 10mnonstop
10:08 pm - 6:10 amSEA-IAD
5h 02mnonstop
$307Delta
Find Deal
Tue, Dec 17 - Wed, Dec 25
12:33 pm - 5:14 pmIAD-SEA
7h 41m1 stop
11:59 pm - 11:25 amSEA-IAD
8h 26m1 stop
$419Sun Country Air
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Tue, Nov 26 - Wed, Nov 27
6:57 pm - 10:00 pmIAD-SEA
6h 03mnonstop
$129Alaska Airlines
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Sat, Jan 11
6:57 pm - 10:00 pmIAD-SEA
6h 03mnonstop
$131Alaska Airlines
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Wed, Jan 8
6:20 pm - 9:30 pmIAD-SEA
6h 10mnonstop
$134Delta
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Tue, Dec 10
12:41 pm - 10:30 pmIAD-SEA
12h 49m1 stop
$143United Airlines
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Tue, Feb 11
11:00 am - 10:51 pmIAD-SEA
14h 51m1 stop
$147Sun Country Air
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Thu, Apr 3
12:41 pm - 9:20 pmIAD-SEA
11h 39m2 stops
$148United Airlines
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Tue, Feb 11
6:20 pm - 9:30 pmIAD-SEA
6h 10mnonstop
$154Delta
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Sun, Dec 8
1:53 pm - 11:11 pmIAD-SEA
12h 18m2 stops
$158American Airlines
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Mon, Feb 3
1:53 pm - 11:11 pmIAD-SEA
12h 18m2 stops
$163American Airlines
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Mon, Jan 27
11:47 am - 5:28 pmIAD-SEA
8h 41m1 stop
$199Sun Country Air
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Thu, Nov 21
8:20 am - 11:10 amIAD-SEA
5h 50mnonstop
6:59 pm - 10:52 amSEA-IAD
12h 53m1 stop
Fri, Nov 15 - Sat, Nov 23
8:20 am - 11:10 amIAD-SEA
5h 50mnonstop
6:59 pm - 10:52 amSEA-IAD
12h 53m1 stop
Sat, Nov 16 - Sat, Nov 23
5:00 am - 6:20 pmIAD-SEA
16h 20m1 stop
10:10 pm - 4:53 pmSEA-IAD
15h 43m1 stop
$610American Airlines
Find Deal
Thu, Nov 14 - Mon, Nov 18
9:10 am - 8:55 pmIAD-SEA
14h 45m1 stop
10:10 pm - 1:17 pmSEA-IAD
12h 07m1 stop
$622American Airlines
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Wed, Nov 13 - Tue, Nov 19
8:35 am - 11:35 amIAD-SEA
6h 00mnonstop
12:47 pm - 8:45 pmSEA-IAD
4h 58mnonstop
$653United Airlines
Find Deal
Fri, Nov 15 - Sun, Nov 24
7:15 am - 10:28 amIAD-SEA
6h 13mnonstop
10:52 pm - 6:50 amSEA-IAD
4h 58mnonstop
$657Delta
Find Deal
Sun, Nov 17 - Thu, Nov 21
5:15 pm - 8:20 pmIAD-SEA
6h 05mnonstop
5:00 am - 3:43 pmSEA-IAD
7h 43m1 stop
$663United Airlines
Find Deal
Fri, Nov 15 - Sun, Nov 24
7:00 am - 9:50 amIAD-SEA
5h 50mnonstop
9:36 am - 9:30 pmSEA-IAD
8h 54m1 stop
$666Alaska Airlines
Find Deal
Sun, Nov 17 - Thu, Nov 21
5:04 pm - 12:19 amIAD-SEA
10h 15m1 stop
1:35 pm - 11:49 pmSEA-IAD
7h 14m1 stop
$676Delta
Find Deal
Sun, Nov 17 - Thu, Nov 21
8:20 am - 11:10 amIAD-SEA
5h 50mnonstop
9:40 pm - 5:32 amSEA-IAD
4h 52mnonstop
$743Alaska Airlines
Find Deal
Fri, Nov 15 - Sat, Nov 23
6:57 pm - 10:00 pmIAD-SEA
6h 03mnonstop
9:54 am - 5:57 pmSEA-IAD
5h 03mnonstop
$257Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
6:20 pm - 9:30 pmIAD-SEA
6h 10mnonstop
10:08 pm - 6:10 amSEA-IAD
5h 02mnonstop
$267Delta
Find Deal
Sun, Dec 15 - Wed, Dec 25
6:57 pm - 10:00 pmIAD-SEA
6h 03mnonstop
9:54 am - 5:57 pmSEA-IAD
5h 03mnonstop
$272Alaska Airlines
Find Deal
Wed, Jan 29 - Sun, Feb 2
6:48 pm - 9:55 pmIAD-SEA
6h 07mnonstop
9:40 pm - 5:32 amSEA-IAD
4h 52mnonstop
$277Alaska Airlines
Find Deal
Thu, Feb 27 - Fri, Mar 7
6:20 pm - 9:30 pmIAD-SEA
6h 10mnonstop
10:08 pm - 6:10 amSEA-IAD
5h 02mnonstop
$282Delta
Find Deal
Wed, Dec 11 - Tue, Dec 24
5:15 pm - 8:20 pmIAD-SEA
6h 05mnonstop
8:05 am - 4:03 pmSEA-IAD
4h 58mnonstop
$286United Airlines
Find Deal
Wed, Dec 11 - Sat, Dec 14
7:00 am - 9:56 amIAD-SEA
5h 56mnonstop
9:40 pm - 5:32 amSEA-IAD
4h 52mnonstop
$287Alaska Airlines
Find Deal
Mon, Feb 17 - Sun, Feb 23
6:20 pm - 9:30 pmIAD-SEA
6h 10mnonstop
9:25 am - 5:25 pmSEA-IAD
5h 00mnonstop
$291Delta
Find Deal
Sun, Dec 8 - Tue, Dec 17
5:19 pm - 8:19 pmIAD-SEA
6h 00mnonstop
8:10 am - 4:09 pmSEA-IAD
4h 59mnonstop
$293United Airlines
Find Deal
Fri, Feb 28 - Sat, Mar 1
5:15 pm - 8:20 pmIAD-SEA
6h 05mnonstop
8:05 am - 4:03 pmSEA-IAD
4h 58mnonstop
$296United Airlines
Find Deal
Sat, Dec 7 - Sun, Dec 15

Flights from Dulles Intl to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Seattle?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Seattle clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Seattle on a Tuesday and more expensive on a Sunday. On your return trip to Washington Dulles Airport, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Seattle is January, where tickets cost $331 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $496 and $486 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Seattle, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 30 days before departure.

Good to know

Low season

January

High season

July

Cheapest flight

$129
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Washington Dulles Airport to Seattle

When to book flights from Dulles Intl to Seattle

Are your dates flexible? Find out the best times to travel from Dulles Intl to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Seattle flights

  • How can I get from the Sea-Tac Airport (SEA) to my hotel in downtown Seattle?

    There are a few options to get you from the airport to your hotel in downtown Seattle. One option is the subway system that picks up passengers on the 4th floor of the parking garage. There are a couple of bus services at the Sea-Tac Airport. King County Metro travels to various parts of the city of Seattle while Sound Transit takes passengers to the outlining cities of Bellevue and Renton. The buses pick up by the subway station.

  • Where can I park my car long-term at the Washington Dulles Airport?

    Very close to the terminal, there is a parking garage and a terminal parking lot. There is also an economy lot a little further away. A shuttle service will take you from the economy lot to the main terminal of the airport.

  • What restaurants are at the Washington Dulles Airport?

    There are a couple of bars, a pizzeria, and a burger place where you can dine. Some well-known restaurants in this airport include Auntie Anne's, Carrabba's Italian Grill, Chick-Fil-A, and Jersey Mike's Subs.

  • What lounges are at these two airports?

    Both airports have lounges where you can enjoy some quiet time. These lounges also offer complimentary drinks and snacks. They are sponsored by airlines, credit card companies, or the airport. At the Washington Dulles Airport, there is a United Airlines, British Airways, and an Air France lounge. The Sea-Tac Airport has lounges affiliated with United Airlines, American Express, Delta Airlines, and Alaska Airlines.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Seattle was $129 for a one-way ticket and $257 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Seattle?

    A passport is not required to fly from Washington Dulles Airport to Seattle.

  • Which airports will I be using when flying from Washington Dulles Airport to Seattle?

    Washington Dulles Airport and Seattle are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Seattle?

    Alaska Airlines, Delta, and American Airlines offer inflight Wi-Fi service on the Washington Dulles Airport to Seattle flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Seattle?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Washington Dulles Airport to Seattle flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Seattle?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Seattle, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Washington Dulles Airport to Seattle?

    There are nonstop flights from Washington Dulles Airport to Seattle on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seattle are Alaska Airlines and Delta. With an average price for the route of $424 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $392 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $208 or less one-way and $367 or less round-trip.
  • You can book a nonstop flight from Washington Dulles Airport (IAD) to the Seattle-Tacoma International Airport (SEA). However, there are some flight routes that will require you to switch planes in either Salt Lake City, Dallas-Fort Worth, or San Francisco.
  • The Washington Dulles International Airport (IAD) has a simple layout. It has one main terminal that connects to four concourses from which departure and arrival flights are managed. To assist passengers with getting around, the airport is equipped with moving walkways, escalators, and elevators. It also has a people mover system that is known as the AeroTrain, it goes from one side of the airport to another.
  • The SEA underground makes it easy to get around the Seattle-Tacoma International Airport (SEA). This is a people mover system or tram that goes around the airport including the main terminal, the north terminal, the south terminal, and the four concourses.
  • There is lots to do and see at the Seattle-Tacoma International Airport. You can explore African culture in the Africa Lounge. Here you can enjoy African-inspired drinks and food. Throughout the year, the airport hosts live musical concerts. These concerts take place in the central terminal, in front of Sub Pop Records, and close to the children's play area.
  • Numerous rental car agencies have offices at the Sea-Tac Airport. This includes Budget, Dollar, Hertz, and Thrifty just to name a few. The rental car center is located offsite. However, there is a shuttle bus that will take you from the airport to the car rental lot.
See more tips

Flights from Dulles Intl to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Dulles Intl to Seattle 
Verified travelerFlew with Alaska AirlinesIAD-SEASep 2024
Pay the money if can afford to upgrade your seats
Verified travelerFlew with Alaska AirlinesIAD-SEAJul 2024
Dulles, like Seattle has a tram. That can be surprising. The TSA at Seattle is notoriously LONG, however, both times in the last year that I have flown, that has not been the case. At Dulles, the TSA lines were efficient as well. The airport interior is well marked for getting around. I did note that the garbages were full in the Southwest and Alaska areas- as we were there 6 hours and had lots of time to notice nit-picky things that nobody else would care about :). It was convenient to have a "charging station" nearby the Alaska waiting area (right across from our gate). It had 3 ports, and I noticed that as soon as I unplugged mine, it was jumped right on. Suggestion- have Dulles add a few more for passengers who need to recharge phones. Great experience, thank you.
MarylinFlew with DeltaIAD-SEAMar 2024
Delta by far is a great airline, they’re fast and great staff. I just wish they had a little more snacks
Verified travelerFlew with Alaska AirlinesIAD-SEAMay 2024
Get to the airport early, especially on holidays

Prefer to fly non-stop from Washington Dulles Airport to Seattle?

Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Nonstop departures

Washington, D.C. Dulles Intl to Seattle/Tacoma Intl

Monday

Air Tahiti Nui, Alaska Airlines, Avianca, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

Tuesday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Wednesday

Air Tahiti Nui, Alaska Airlines, Avianca, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

Thursday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

Friday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +15 more

Air Tahiti Nui, Alaska Airlines, +16 more

Saturday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +15 more

Air Tahiti Nui, Alaska Airlines, +16 more

Sunday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Washington, D.C. Dulles Intl

Monday

Air Tahiti Nui, Alaska Airlines, Avianca, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Tuesday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

Wednesday

Air Tahiti Nui, Alaska Airlines, Avianca, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Thursday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

Friday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Saturday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

Sunday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +14 more

Air Tahiti Nui, Alaska Airlines, +15 more

See more direct flights
See more direct flights

Top 5 airlines serving from Dulles Intl to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9435 reviews
7.2Food
8.6Crew
7.1Entertainment
7.9Comfort
8.2Boarding
Airline reviews

On my trip from Seattle to San Jose it would’ve been nice to have the gate transfer nearby instead of at the opposite end of the airport that’s it

10.0 ExcellentAnonymous, Nov 2024MSO - SEA
Read more Alaska Airlines reviews

On my trip from Seattle to San Jose it would’ve been nice to have the gate transfer nearby instead of at the opposite end of the airport that’s it

This was our fist time flying Alaska Airlines. Overall it was a great experience. Ticket counter, gate agents and flight attendants were all wonderful. They all seemed happy at what they do and it shows. Of 4 legs, the onboard WiFi was spotty on 1 leg. The food in first class cabin was ok. Couldn’t get the text messaging notifications to work so had to rely on Flight Aware and the Alaska App. Flights were on time and uneventful. We would def fly Alaska Airlines again :)

Both flights were delayed, the Bellingham to Seattle flight was delayed so much I nearly missed my connection with a two hour layover to spare. I could have driven to Seattle and back in the amount of time the flight was delayed. Seattle to Bellingham Washington also delayed. Not good.

I've flown at least six times this past year. For some reason, the entry into Seattle felt like the worst ever. It felt like the plane was going too high, too fast for entry and then a very rough landing. Could have been the weather. All else was fine. Please consider changing snacks from pretzel sticks to nuts as an option.

All pretty good except we were a bit late getting into Seattle and I had to run to my next gate and was the very last person to board (they were about to close the door but were terrific about getting me aboard.) Hustling between gates is not usually a problem, but I just had a hip replacement which affected my ability to hurry.

There isn't any food on that short flight. The plane had to be de-iced but it wasn't much dela

A review system on Kayak that would allow “NA” (Not Applicable) as an answer. For example, if food wasn’t ordered, I cannot say how good it might or might not have been.

Easy boarding, good staff, comfortable seats, easy ride. Also, friendly passengers!

I don't know what it is. But it seems that flights from Ontario to Seattle are always delayed. This one was delayed 3 hours. I guess I should just expect it from now on.

Your seats are too crowded! and you don't serve full meals on this 5 hour flight? Just rake in the profits.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

I notice that every time I fly delta or any American carrier, the staff seem tired, overworked, and not at the service level I’m accustomed to in Asia. They frequently crash into my arm when coming down the aisle. Food is shoved at my face with no greeting or verbal cue. The food portions seemed much smaller than usual and didn’t see much wine or beverage options. This is comfort plus? The plane was old and tired. The bathroom was dripping with mineral stains after a long lack of cleaning. The power socket did not work, although the USB output did. I really wonder why I’m flying Delta, I think it’s time to switch to ANA.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

Screen didn’t play movies, do I was pretty boated the entire flight.

It was very cold because the air conditioner was on high power, and my son got sick.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

This was a 5 hour flight with no entertainment and with a snack being provided (pretzels and fruit bar), which are both high in carbs and sugar. Nuts would have been a better choice.

Everything was perfect except the pad at the top of the seat back. It pushes my head forward in a very uncomfortable position and it is not removable.

Good plane, crew, and flight. Boarding was a bit chaotic. Bathrooms were unacceptable. United DESPERATELY needs a new terminal at IAD.

United Airlines changed my flight 5 hours before I arrived at the airport. This messed up my entire day that I arrived in Japan.

The Economy Plus rows weren’t as roomy as expected, and the meal service left a lot to be desired for.

United ground crew and pilots are friendly. The in-flight staff (flight attendants) are the worst in the world. Multiple trips, always unpleasant, combative, use implicit threats to not allow for a discussion on their decision. Authoritarian. This seems to stem from an internal corporate wide policy as I doubt that United is intentionally searching for people that are not fit for customer facing positions. I will not fly United again. Good luck fixing your business

Everything was fantastic. Modern plane. All the amenities! Although the paid snacks and meals are pure robbery. Like i understand airlines need to make money, but 11$ USD for an overnight oats with some nuts in it and barely any pieces of apple.... Highway robbery

The flight was mostly on time, smooth and deplaning was quick. Baggage was really quick at the claim. Comfort was so-so and I paid for economy plus. It was still too crowded and why was a family of 5 scattered all around the plane?

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

No food, no entertainment. But the flight was really short so maybe they had to skip drinks. I was able to board early ONLY because I am old and decrepit and they let me pre-board. I RESENT your dumping us into category 9 if we do not pay up. And when I paid for a seat I was STILL given 9. The pre-boarding helps. THIS flight was exceptionally smooth, please congratulate the pilots.

On time (actually a little early). Was a good and short flight!

Great - quick boarding and landed early with an available gate.

On time, smooth, luggage was out fast at the end of the flight. About perfect.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

Flight departed on time and arrived a bit early. Can’t go wrong with that! And makes a travel experience go so well

WiFi wasn’t working on the flight, several delays and gate changes, ended up taking off 3 hrs later

delayed multiple times. no resolution on anything from AA customer service. was put on hold in chat to talk to manager. was 6th in line to talk to manager for more than TWELVE HOURS - from sometime around 9AM until well after I had gone to bed that evening. no explanation, no attempt to make it right. just a five hour delay because of repeated maintenance claims

Gate check in of luggage was smooth at DCA and luggage came out fast in IND.

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

I purchased an aisle seat but was put in the middle seat surrounded by families with small sick children (3). That can happen anytime and I was prepared. The ticket agent questioned why I hadn’t paid for my luggage and had to explain that 2 pieces were included with my ticket. I hate that nickel and diming attitude. Please inform your staff better.

I know the airline has been open for 40 years and the flight crew looked just as old. The flight attendants were not friendly and rude. They should think of retiring this crew.

The crew was friendly, but I only got a drink, no food.

Flight was late, boarding was a mess, families separated so they could make extra profit.

Great! A delay in taking off but that’s it

Terrible boarding experience at sea tac. Displayed on time departure despite being about an hour behind in boarding time. Boarded a bus to go to the tarmac to then board onto the plane.

Hidden fees everywhere while we aware of the fees but it quickly added up to a premium airline. From 12+ dollars to pick your set to $55 dollars a checked bag. No counter at the Portland Airport until 2 hrs before the flight made it so we couldn't get anything to eat before the flight. Pre checking your bags wasn't working on-line or at the kiosk, so we had to pay extra 5 dollars per bag for counter checking. So after everything was said and done, we ended up paying an extra $200. Plane was nice and clean plane staff was nice and attentive.

Excellent. Except seat C2 starting to be worned down. Very uncomfortable.

22 hour delayed flight. I will not fly again. I missed training due to this.

Well my connecting flight was initially delayed 2 hours. Then it became a 21 hour delay. When I woke up the next morning the flight was then delayed another hour. I ended up missing a day and a half of training due to this. When asked if there was any way I could be transferred to a different flight I was told no because it was under a 24 hour delay. I will not fly with this airline again.

Book cheap flights from Washington, D.C. to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Seattle found on KAYAK in the last 72 hours.
1/11Sat
nonstopAlaska Airlines
6h 03mIAD-SEA
$129
1/8Wed
nonstopAlaska Airlines
6h 03mIAD-SEA
$131
12/10Tue
nonstopDelta
6h 10mIAD-SEA
$134
2/11Tue
1 stopUnited Airlines
12h 49mIAD-SEA
$143
4/3Thu
1 stopSun Country Air
14h 51mIAD-SEA
$147
2/11Tue
2 stopsUnited Airlines
11h 39mIAD-SEA
$148
12/8Sun
nonstopDelta
6h 10mIAD-SEA
$154
2/3Mon
2 stopsAmerican Airlines
12h 18mIAD-SEA
$158
1/27Mon
2 stopsAmerican Airlines
12h 18mIAD-SEA
$163
11/21Thu
1 stopSun Country Air
8h 41mIAD-SEA
$199

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Last minute flights from Dulles Intl to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Seattle that are departing in the next 10 days.
11/15Fri
nonstop
5h 50mIAD-SEA
11/23Sat
multi-stop
12h 53mSEA-IAD
$584
11/16Sat
nonstop
5h 50mIAD-SEA
11/23Sat
multi-stop
12h 53mSEA-IAD
$589
11/14Thu
multi-stopAmerican Airlines
16h 20mIAD-SEA
11/18Mon
multi-stopAmerican Airlines
15h 43mSEA-IAD
$610
11/13Wed
multi-stopAmerican Airlines
14h 45mIAD-SEA
11/19Tue
multi-stopAmerican Airlines
12h 07mSEA-IAD
$622
11/15Fri
nonstopUnited Airlines
6h 00mIAD-SEA
11/24Sun
nonstopUnited Airlines
4h 58mSEA-IAD
$653
11/17Sun
nonstopDelta
6h 13mIAD-SEA
11/21Thu
nonstopDelta
4h 58mSEA-IAD
$657
11/15Fri
nonstopUnited Airlines
6h 05mIAD-SEA
11/24Sun
multi-stopUnited Airlines
7h 43mSEA-IAD
$663
11/17Sun
nonstopAlaska Airlines
5h 50mIAD-SEA
11/21Thu
multi-stopAlaska Airlines
8h 54mSEA-IAD
$666
11/17Sun
multi-stopDelta
10h 15mIAD-SEA
11/21Thu
multi-stopDelta
7h 14mSEA-IAD
$676
11/15Fri
nonstopAlaska Airlines
5h 50mIAD-SEA
11/23Sat
nonstopAlaska Airlines
4h 52mSEA-IAD
$743

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