Alaska's Premium Class offers priority boarding and complimentary drinks on flights over 350 miles.
Alaska's 20-minute baggage guarantee offers a discount or miles if bags are late.
Planning a trip from Dulles Intl to Seattle? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
Low season | February |
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High season | July |
Cheapest flight | $98 |
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.
Direct departures
Washington, D.C. Dulles Intl to Seattle/Tacoma Intl
Monday
Air Tahiti Nui, Alaska Airlines, American Airlines, +14 more
Air Tahiti Nui, Alaska Airlines, +15 more
13
14
Tuesday
Air Tahiti Nui, Alaska Airlines, American Airlines, +14 more
Air Tahiti Nui, Alaska Airlines, +15 more
13
14
Wednesday
Air Tahiti Nui, Alaska Airlines, American Airlines, +15 more
Air Tahiti Nui, Alaska Airlines, +16 more
14
15
Thursday
Air Tahiti Nui, Alaska Airlines, American Airlines, +15 more
Air Tahiti Nui, Alaska Airlines, +16 more
14
15
Friday
Air Tahiti Nui, Alaska Airlines, American Airlines, +14 more
Air Tahiti Nui, Alaska Airlines, +15 more
13
14
Saturday
Air Tahiti Nui, Alaska Airlines, American Airlines, +15 more
Air Tahiti Nui, Alaska Airlines, +16 more
14
15
Sunday
Air Tahiti Nui, Alaska Airlines, American Airlines, +15 more
Air Tahiti Nui, Alaska Airlines, +16 more
14
15
Direct returns
Seattle/Tacoma Intl to Washington, D.C. Dulles Intl
Monday
ANA, Air Tahiti Nui, Alaska Airlines, +14 more
ANA, Air Tahiti Nui, +15 more
13
14
Tuesday
ANA, Air Tahiti Nui, Alaska Airlines, +15 more
ANA, Air Tahiti Nui, +16 more
14
15
Wednesday
ANA, Air Tahiti Nui, Alaska Airlines, +14 more
ANA, Air Tahiti Nui, +15 more
13
14
Thursday
ANA, Air Tahiti Nui, Alaska Airlines, +15 more
ANA, Air Tahiti Nui, +16 more
14
15
Friday
ANA, Air Tahiti Nui, Alaska Airlines, +15 more
ANA, Air Tahiti Nui, +16 more
14
15
Saturday
ANA, Air Tahiti Nui, Alaska Airlines, +15 more
ANA, Air Tahiti Nui, +16 more
14
15
Sunday
ANA, Air Tahiti Nui, Alaska Airlines, +15 more
ANA, Air Tahiti Nui, +16 more
14
15
1.5 hour delay boarding plus 1+ hour sitting in plane waiting for ground crew to load luggage and freight, made for 3:00AM arrival in Seattle.
1.5 hour delay boarding plus 1+ hour sitting in plane waiting for ground crew to load luggage and freight, made for 3:00AM arrival in Seattle.
The second leg of my trip left without me despite being my inbound transfer only a few minutes late. My friends told the gate agent and they closed the doors and left early anyway. Then they tried to rebook me on a flight SIX hours later which only changed when I got a supervisor to make it 4 hours later. The gate agent was nasty, unhelpful, and walked away from me.
Worst part is being squashed in a seat ( I am not fat) and unable To get comfortable
Took forever to get on board. Flights was one hour late.
They always change the schedule. My original flight got canceled. They put me up in the air flight. I had to stay seven hours in Seattle. That is bad.
I had a great travel experience with Alaska. The agents and cabin crew were all so pleasant and helpful. The plane was clean and comfortable. The connecting flights went smoothly even with some minor delays. All in all, it was nice not to be upset with the journey. I say that because over the last few years all my travel has been on Delta and American, and always involved cranky employees and flight issues. I wish Alaska flew everywhere I need to go. Will definitely fly Alaska every time I have a choice. Thanks for helping me look forward to traveling again.
Disappointed that there were no TV screens to watch a movie on the six hour flight. Disappointed that the plane did not have the right adapter to connect my phone and my iPad and charge them.
Ted. F/A in fist class did a great job! Very nice
The plane was freezing and no blanquets available unless you buy them. My screen was bad so I couldn’t watch any entertainment.
The flight attendants on this flight were fabulous! I flew with my two kids and it was their first flight ever. One attendant in particular learned it was my kids first flight so she took extra care of them. She brought them some wings and extra cookies which made the experience positive and memorable. Thank you so much!
Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.
The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.
A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.
Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.
The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.
The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.
Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger
Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!
Flight left early and arrived early. the whole trip was excellent.
Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.
Liked the crew. Seats were uncomfortable during the last few hours of the 11 hour flight. Better selection of movies .
The flight is supposed to be Hawaiian, but it's operated by Alaska. As such, I could not find my reservation on Hawaiian nor Alaska website. I could not check in on line. At the airports, even the kiosk could not find my reservation. I needed to wait in a long line to check in even though I have no bag to check. Good thing I got to the airport early enough.
Overall a great experience. The starlink internet was amazing addition.
They cancelled our flight and one after and then crammed everyone on a late flight. Refused to give us a meal voucher because the delay was less than 3 hours. In the end the delay was 4 hours. No reason was ever given for the cancelled flights. Fly Southwest!
The temperature on the plane was too cold and the food was not very good. Everything else was good.
Every customer service agent we came in contact with was rude, tired, overworked and indifferent
Staff was great. Heard negative things about this airline but my experience was great
There was mention of a complimentary magazine but none were in the seat pockets. The flight is short so understandable not having food or a snack.
Maria and her partner In SLO are phenomal! Great customer service!
unexpected $120 charge to sit next to my wife on an isle seat in the economy section. Looks like there pre-assigning us both on the middle seat was intentional - leaving the isle seat next to my wife open at $120 was a ploy to make more money. Not good business.
When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.
We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.
Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.
The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.
Liked nothing. As per previous segment it was delay delay delay.
The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.
The seats on this flight were almost roomy enough to be the basic amount needed for human existence.
I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.
First class felt like economy, seats were horrible, food was horrible, staff inattentive
EVen warmer in the plane it think it was 24+ degrees
Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.
The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)
Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.
Good experience but the snacks are not gluten free, so I cannot eat them.
Standard. No different than a discount carrier on a short trip.
Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.
It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.
I blame kayak for my last trip to dca. Kayak cancelled my direct flight and put on a one stop flight and made lost whole day from my vacation and had not even refunded my ticket.
I flew out of Reagan National. My flight was delayed, delayed, delayed, and then canceled ...THREE TIMES over TWO DAYS. Staff were seemingly not empowered to provide information on why the flights were screwed up. A real nightmare.
I had two wonderful flights - very relaxing and got me there early!
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