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IAD - DEN

$53 Find Cheap Flights from Washington Dulles Airport to Denver

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 Denver departing on 12/16. 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.
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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 Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Denver, as well as popular online travel agencies
In the last 7 days travelers have searched 46,479,581 times on KAYAK, and here is why:

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Cheap Flight Deals from Washington Dulles Airport to Denver (IAD-DEN)

 
These are the cheapest deals for flights from Dulles Intl to Denver 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 Denver

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

Recent one-way flight deals from Dulles Intl to Denver

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

Recent last minute flight deals from Dulles Intl to Denver

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

Recent direct flight deals from Dulles Intl to Denver

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

Cheap bus & train deals from Dulles Intl to Denver

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

All round-trip flight deals to Denver

The cheapest plane tickets to Denver found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
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5:37 pm - 11:16 pmIAD-DEN
7h 39m1 stop
11:49 pm - 7:57 amDEN-IAD
6h 08m1 stop
$106Frontier
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Mon, Nov 18 - Tue, Nov 19
9:29 pm - 7:32 amIAD-DEN
12h 03m1 stop
11:49 pm - 7:57 amDEN-IAD
6h 08m1 stop
$108Frontier
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Sat, Nov 16 - Tue, Nov 19
6:16 am - 1:54 pmIAD-DEN
9h 38m1 stop
11:59 pm - 8:39 amDEN-IAD
6h 40m1 stop
$166American Airlines
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Wed, Nov 20 - Wed, Dec 11
6:00 am - 1:48 pmIAD-DEN
9h 48m1 stop
7:00 am - 7:28 pmDEN-IAD
10h 28m2 stops
$171American Airlines
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Tue, Dec 10 - Sat, Dec 14
5:35 pm - 7:37 pmIAD-DEN
4h 02mnonstop
10:20 am - 3:38 pmDEN-IAD
3h 18mnonstop
$177United Airlines
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Tue, Dec 10 - Sat, Dec 14
5:20 pm - 9:35 pmIAD-DEN
6h 15m1 stop
6:00 am - 11:19 amDEN-IAD
3h 19mnonstop
$207United Airlines
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Sat, Dec 7 - Tue, Dec 10
5:25 pm - 11:10 pmIAD-DEN
7h 45m1 stop
6:35 am - 4:44 pmDEN-IAD
8h 09m1 stop
$236Delta
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Wed, Dec 4 - Fri, Dec 6
6:00 am - 9:45 amIAD-DEN
5h 45m1 stop
6:10 am - 1:48 pmDEN-IAD
5h 38m1 stop
$241Delta
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Tue, Dec 17 - Tue, Jan 7
4:00 pm - 11:30 pmIAD-DEN
9h 30m1 stop
9:45 am - 3:00 pmDEN-IAD
3h 15mnonstop
$247Southwest
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Fri, Dec 13 - Tue, Dec 17
6:45 am - 8:40 amIAD-DEN
3h 55mnonstop
9:45 am - 3:00 pmDEN-IAD
3h 15mnonstop
$248Southwest
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Fri, Dec 13 - Tue, Dec 17
5:57 pm - 11:35 pmIAD-DEN
7h 38m1 stop
$53Frontier
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Mon, Dec 16
5:57 pm - 11:40 pmIAD-DEN
7h 43m1 stop
$54Frontier
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Mon, Feb 3
6:16 am - 11:21 amIAD-DEN
7h 05m1 stop
$83American Airlines
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Wed, Nov 20
5:00 am - 3:18 pmIAD-DEN
12h 18m2 stops
$88American Airlines
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Tue, Dec 10
10:11 pm - 12:15 amIAD-DEN
4h 04mnonstop
$89United Airlines
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Tue, Dec 17
4:00 pm - 6:08 pmIAD-DEN
4h 08mnonstop
$109United Airlines
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Thu, Jan 9
6:00 am - 9:45 amIAD-DEN
5h 45m1 stop
$117Delta
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Sun, Dec 8
6:00 am - 9:45 amIAD-DEN
5h 45m1 stop
$118Delta
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Sun, Nov 24
6:45 am - 8:40 amIAD-DEN
3h 55mnonstop
$129Southwest
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Sun, Dec 15
5:15 am - 7:10 amIAD-DEN
3h 55mnonstop
$165Southwest
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Tue, Nov 26
10:11 pm - 12:15 amIAD-DEN
4h 04mnonstop
8:00 am - 1:19 pmDEN-IAD
3h 19mnonstop
$357United Airlines
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Tue, Nov 5 - Thu, Nov 7
1:36 pm - 5:38 pmIAD-DEN
6h 02m1 stop
7:05 am - 2:36 pmDEN-IAD
5h 31m1 stop
$358Delta
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Tue, Nov 5 - Thu, Nov 7
6:20 am - 10:35 amIAD-DEN
6h 15m1 stop
8:00 am - 1:19 pmDEN-IAD
3h 19mnonstop
$367United Airlines
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Tue, Nov 5 - Thu, Nov 7
3:31 pm - 7:55 pmIAD-DEN
6h 24m1 stop
12:35 am - 9:22 amDEN-IAD
6h 47m1 stop
$567Delta
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Tue, Nov 5 - Tue, Nov 12
10:59 am - 5:59 pmIAD-DEN
9h 00m2 stops
7:20 am - 7:31 pmDEN-IAD
10h 11m2 stops
$582American Airlines
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Tue, Nov 5 - Wed, Nov 13
5:07 am - 1:56 pmIAD-DEN
10h 49m2 stops
11:59 pm - 10:29 amDEN-IAD
8h 30m1 stop
$604American Airlines
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Sat, Nov 2 - Wed, Nov 6
7:35 pm - 9:35 pmIAD-DEN
4h 00mnonstop
9:45 am - 3:00 pmDEN-IAD
3h 15mnonstop
$641Southwest
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Sun, Nov 3 - Tue, Nov 5
6:45 pm - 11:55 pmIAD-DEN
7h 10m1 stop
8:55 am - 2:10 pmDEN-IAD
3h 15mnonstop
$745Southwest
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Fri, Nov 1 - Sun, Nov 3
5:28 pm - 10:13 pmIAD-DEN
30h 45m2 stops
3:45 pm - 7:01 amDEN-IAD
13h 16m1 stop
$822Alaska Airlines
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Tue, Nov 5 - Thu, Nov 7
7:12 pm - 11:45 amIAD-DEN
18h 33m2 stops
2:10 pm - 4:15 pmDEN-IAD
24h 05m2 stops
$879Alaska Airlines
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Sun, Nov 3 - Tue, Nov 12
5:35 pm - 7:37 pmIAD-DEN
4h 02mnonstop
10:20 am - 3:38 pmDEN-IAD
3h 18mnonstop
$177United Airlines
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Tue, Dec 10 - Sat, Dec 14
10:11 pm - 12:15 amIAD-DEN
4h 04mnonstop
8:00 am - 1:19 pmDEN-IAD
3h 19mnonstop
$188United Airlines
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Sat, Dec 14 - Wed, Dec 18
5:20 pm - 7:22 pmIAD-DEN
4h 02mnonstop
10:20 am - 3:38 pmDEN-IAD
3h 18mnonstop
$197United Airlines
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Wed, Nov 20 - Wed, Dec 11
5:45 pm - 7:50 pmIAD-DEN
4h 05mnonstop
8:00 am - 1:20 pmDEN-IAD
3h 20mnonstop
$198Southwest
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Tue, Dec 10 - Sat, Dec 14
5:35 pm - 7:37 pmIAD-DEN
4h 02mnonstop
10:20 am - 3:38 pmDEN-IAD
3h 18mnonstop
$217United Airlines
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Mon, Dec 9 - Thu, Dec 12
4:00 pm - 6:07 pmIAD-DEN
4h 07mnonstop
6:00 am - 11:19 amDEN-IAD
3h 19mnonstop
$223United Airlines
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Wed, Nov 27 - Wed, Dec 4
7:10 am - 9:05 amIAD-DEN
3h 55mnonstop
9:45 am - 3:00 pmDEN-IAD
3h 15mnonstop
$228Southwest
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Sat, Dec 7 - Wed, Dec 11
4:00 pm - 6:08 pmIAD-DEN
4h 08mnonstop
6:00 am - 11:23 amDEN-IAD
3h 23mnonstop
$237United Airlines
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Sat, Jan 18 - Wed, Jan 22
10:11 pm - 12:15 amIAD-DEN
4h 04mnonstop
6:00 am - 11:19 amDEN-IAD
3h 19mnonstop
$238United Airlines
Find Deal
Sat, Dec 7 - Sat, Dec 14
10:11 pm - 12:15 amIAD-DEN
4h 04mnonstop
6:00 pm - 11:18 pmDEN-IAD
3h 18mnonstop
$243United Airlines
Find Deal
Wed, Nov 20 - Mon, Nov 25

Flights from Dulles Intl to Denver - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Denver 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 Denver?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Denver clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Denver on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Washington Dulles Airport to Denver. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

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 Denver, 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 Denver is January, where tickets cost $218 on average. On the other hand, the most expensive months are March and December, where the average cost of tickets is $338 and $335 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Denver?

The average price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of $813, prices are generally cheapest when you fly direct.

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

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 Denver, 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 Denver, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 55 days before departure.

Good to know

Low season

February

High season

July

Cheapest flight

$53
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Washington Dulles Airport to Denver

When to book flights from Dulles Intl to Denver

Are your dates flexible? Find out the best times to travel from Dulles Intl to Denver 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 Denver flights

  • Where can passengers in IAD freshen up?

    Passengers who want to freshen up can take showers. Air France-KLM and British Airways lounges offer showers services. Air France-KLM is located opposite gate A22 concourse A in the midfield terminal, while British Airways lounge is located at concourse B in the midfield terminal. Passengers can also have massages at gate A20, concourse A on the airside. You can also have manicures, pedicures and massages in gate A32 on concourse B.

  • Where can passengers get help from IAD airport?

    If you want help, you can visit the information desks on the landside at baggage claims 6, 11 and 14 and on the airside, near gates A15, B62, C17 and D16. There is also an organization known as Traveler's Aid that helps lost passengers by answering their questions. They are located at the baggage claim areas adjacent to carousels 6, 12 and 14. In concourses A, B, C, C7 and D, mobile guides are walking around.

  • Are there pet relief areas located at the departure and arrival airports?

    If you are traveling with your pet and wondering where you can find pet relief areas in DEN, they are located on each concourse and another outside the terminal. IAD also has pet relief areas near carousel 1, baggage claim areas, arrivals level, door 1 near AeroMexico counter and door 16 United Airlines Counter on the landside. On the airside, they are situated at gates D1 and A32.

  • Where in IAD airport can you relax before your flight?

    If you are at IAD, take advantage of the lounges inside the airport. Payment can be made at the door and you can purchase a lounge pass or a lounge membership program. Lounges in IAD include KLM lounge opposite gate A22, concourse A on the midfield terminal, British Airways Galleries lounge in concourse B, and airside on the midfield. If you are a military officer, USO lounge offers free services to military officers and their families. It is located across from baggage claim 11 and 12, arrivals level on the main terminal.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Denver was $53 for a one-way ticket and $106 for a round-trip.

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

    No

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

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

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

    The Boeing 737-900 is the aircraft model that flies most regularly on the Washington Dulles Airport to Denver flight route.

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

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Denver.

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

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

  • Which is the best airline for flights from Washington, D.C. to Denver, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Denver are Southwest and Delta. With an average price for the route of $311 and an overall rating of 8.1, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $278 and an overall rating of 8.0.

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

    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 Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver 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 Denver?

    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 Denver with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and DEN 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 Denver?

    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 Denver 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 Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $193 or less one-way and $320 or less round-trip.
  • Dulles International Airport (IAD) has airport cars and limo services that are licensed fully and have well-trained drivers who know the geography of the area well. They provide reliable and affordable transport to and from the airport. They offer services 24/7, ready to meet all the transport needs of the travelers.
  • IAD airport has nursing rooms for breastfeeding mothers. The nursing rooms are located at the main terminal landside, across from Baggage Claims 2, 6,11 and 14 and on the airside, gates A20, B70, C11 and D1. The room has comfortable sitting areas, a conducive environment for breastfeeding.
  • If you are traveling with kids, there are play areas in IAD Concourse B, near gate B70. It provides children with all kinds of games, and this keeps them busy as you wait for the flight.
  • If you want a place at IAD airport where you can buy food, there are over 30 food and beverage concessions at the airport. Some restaurants are open 24h, including Capitol Grounds, Cafe Americana and Starbucks on the landside. On the airside, there is Bistro Atelier Grab and Go in gate D 14, concourse D, Capital City Ink in gate C14, concourse C and Dulles Gourmet Market in gate D5, concourse D.
  • If you want a quiet and peaceful place to collect your thoughts after arriving at Denver International Airport (DEN), there is an Islamic masjid and an interfaith chapel. The chapel is located at level 6, east of Jeppesen terminal.
See more tips

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

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

Nonstop departures

Washington, D.C. Dulles Intl to Denver Intl

Monday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Tuesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Wednesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Thursday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Friday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Saturday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Sunday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

See more direct flights

Nonstop returns

Denver Intl to Washington, D.C. Dulles Intl

Monday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Tuesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Wednesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Thursday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Friday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Saturday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Sunday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

See more direct flights
See more direct flights

Top 5 airlines serving from Dulles Intl to Denver

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Denver. 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 Denver? 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.
8.1
SouthwestOverall score based on 5116 reviews
8.3Boarding
8.7Crew
7.7Entertainment
7.2Food
8.1Comfort
Airline reviews

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

8.0 ExcellentMatthew, Oct 2024PDX - DEN
Read more Southwest reviews

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

Pretty standard flight. We left late, but arrived early. The wifi entertainment is always nice. The free snacks and beverages are simple, but appreciated. I'm tall and the seats are an issue. I can deal with a short flight, but any longer, I have to find another airline where I know beforehand I have extra legroom.

I love no assigned seats and bags fly free. If Private Equity gets their way and forces Southwest to change they will be everyone else and I will stop being loyal to them. DON'T CHANGE YOUR BUSINESS MODEL!!!

Crew always seems to be unprofessional no matter what Southwest flight I fly

The 700 model seating is too tight both seat size & leg room

Being paid like a full service airline , I felt some features like no screen on seat, very poor entertainment content and no headphone provided. I like the checked bag benefit. Open seating concept is not nicely implemented as people were boarding out of order.

Southwest failed to leave on time forcing us to circle the airport due to weather. Please stick with the schedule and delays won't stack up.

Seats are tight. You pay extra to get to board early so you can sit with your companion. If not, you possibly will end up sitting in a middle seat if you are boarding group C.

Flights were full but SWA still managed to get everyone loaded and depart on time. No snack or beverage service on the first leg due to turbulance. Seats were clean but very little cushioning. Reasonable amount of leg room.

Great no problem boarding suitcase on time for pick up

I upgraded to first class only to find out that I still had no access to the sky lounge without a sky miles card or AmEx (something that should be emphasized outside of the fine print!) Also, no food or drink service provided during the flight, so I basically paid 4x more just for “free” checked baggage and a bigger seat. Not worth it.

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

Bottom seat cushion is almost non existent. Very uncomfortable seat.

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

Flight did not have seat back entertainment and the wifi was iffy.

Pretty standard flight. Delta has a good selection of movies.

The WiFi has been awful on my last few Delta Air Lines flights.

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

The seats are uncomfortable and there was no power to recharge a phone.

Flight heavily delayed. No food available despite purchasing an upgrade. No in cabin service.

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.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Liked that we left on time for each flight. Snacks not the best, but we're okay.

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

Pleasant service from the crew. Arrived early. Efficient boarding and deplaning. Great job!

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.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

I am not an electronic savy. I don't know how to maneuver the APPS for services. Why can't I just buy food without the apps.

Flight home lot's of room shame I never noticed that they ripped my suitcase and didn't notice it to I got toy destination and had to buy new set

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.

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.

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Stuck in Phoenix for two days, not even a hotel voucher offered.

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

Flight got delayed for 3.5 hours, and for the first hour after the departure time there was no update from the gate folks...

Both flights were delayed. The sizing of bags is crazy. I know it is advertised as a no frills cheaper option but it does feel like you are being extorted for money the whole way-- $20 dollars to talk to a gate agent? Charging for soda a pretzels? I don't think I will be flying Frontier again if I can help it. That said, all the staff were wonderful.

Staff members pretty horrible when boarding. No care for customers

Frontier is definitely a good option for people traveling light or on a budget - just remember to bring your own entertainment and your own headphones if you need them.

The plane was very clean, the flight attendants were chipper and accommodating. It was roomy

I didn’t have enough time to catch my connecting flight and had to use a different Airline. I will be requesting a refund.

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

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Denver found on KAYAK in the last 72 hours.
12/16Mon
1 stopFrontier
7h 38mIAD-DEN
$53
2/3Mon
1 stopFrontier
7h 43mIAD-DEN
$54
11/20Wed
1 stopAmerican Airlines
7h 05mIAD-DEN
$83
12/10Tue
2 stopsAmerican Airlines
12h 18mIAD-DEN
$88
12/17Tue
nonstopUnited Airlines
4h 04mIAD-DEN
$89
1/9Thu
nonstopUnited Airlines
4h 08mIAD-DEN
$109
12/8Sun
1 stopDelta
5h 45mIAD-DEN
$117
11/24Sun
1 stopDelta
5h 45mIAD-DEN
$118
12/15Sun
nonstopSouthwest
3h 55mIAD-DEN
$129
11/26Tue
nonstopSouthwest
3h 55mIAD-DEN
$165

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Last minute flights from Dulles Intl to Denver

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 Denver that are departing in the next 10 days.
11/5Tue
nonstopUnited Airlines
4h 04mIAD-DEN
11/7Thu
nonstopUnited Airlines
3h 19mDEN-IAD
$357
11/5Tue
multi-stopDelta
6h 02mIAD-DEN
11/7Thu
multi-stopDelta
5h 31mDEN-IAD
$358
11/5Tue
multi-stopUnited Airlines
6h 15mIAD-DEN
11/7Thu
nonstopUnited Airlines
3h 19mDEN-IAD
$367
11/5Tue
multi-stopDelta
6h 24mIAD-DEN
11/12Tue
multi-stopDelta
6h 47mDEN-IAD
$567
11/5Tue
multi-stopAmerican Airlines
9h 00mIAD-DEN
11/13Wed
multi-stopAmerican Airlines
10h 11mDEN-IAD
$582
11/2Sat
multi-stopAmerican Airlines
10h 49mIAD-DEN
11/6Wed
multi-stopAmerican Airlines
8h 30mDEN-IAD
$604
11/3Sun
nonstopSouthwest
4h 00mIAD-DEN
11/5Tue
nonstopSouthwest
3h 15mDEN-IAD
$641
11/1Fri
multi-stopSouthwest
7h 10mIAD-DEN
11/3Sun
nonstopSouthwest
3h 15mDEN-IAD
$745
11/5Tue
multi-stopAlaska Airlines
30h 45mIAD-DEN
11/7Thu
multi-stopAlaska Airlines
13h 16mDEN-IAD
$822
11/3Sun
multi-stopAlaska Airlines
18h 33mIAD-DEN
11/12Tue
multi-stopAlaska Airlines
24h 05mDEN-IAD
$879

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Everything you need to know for your flight from Dulles Intl to Denver

Information on your arrival and departure airports