IAD - DEN

$170 Find Cheap Flights from Washington Dulles Airport to Denver - Compare and Save

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 7/21. 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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Everything you should know

Cheapest round-trip
$317
Typical prices: $242-$471
Frontier
Wed 9/2Mon 9/7
IAD - DEN • 2 stops
Cheapest non-stop
$339
Typical prices: $378-$544
United Airlines
Fri 7/31Mon 8/3
IAD - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United Economy Plus adds up to six inches more legroom than standard economy.
Southwest free carry-on helps value; United Priority Boarding cuts gate-check risk.
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Cheapest • from $315 (round-trip)
Best reviews • 8.0 score
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Nonstop flights
You can fly direct with United Airlines. Average duration is 3h 58m
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Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
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Top layover airports
Cheapest • Avg $226 (round-trip)
Shortest trip • 6h 34m (one-way)
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 51% compared to booking last minute.
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Cheapest • 21% price drop
Most popular
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Flight Deals

Cheap Flights from Dulles Intl to Denver (IAD-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Denver

Wed, Sep 2 - Mon, Sep 7
Frontier Logo
6:20 am - 8:36 pm
IAD
-
DEN
16h 16m
2 stops
Frontier Logo
11:59 pm - 5:14 pm
DEN
-
IAD
15h 15m
1 stop
$317Frontier
Fri, Sep 18 - Mon, Sep 21
Frontier Logo
9:21 am - 10:59 pm
IAD
-
DEN
15h 38m
1 stop
Frontier Logo
10:59 am - 12:28 am
DEN
-
IAD
11h 29m
2 stops
$318Frontier
Sat, Aug 1 - Sat, Aug 1
Frontier Logo
6:49 am - 2:00 pm
IAD
-
DEN
9h 11m
1 stop
Frontier Logo
10:29 pm - 8:20 am
DEN
-
IAD
7h 51m
1 stop
$319Frontier
Sun, Aug 2 - Sat, Aug 29
Frontier Logo
7:49 am - 2:00 pm
IAD
-
DEN
8h 11m
1 stop
Frontier Logo
10:09 am - 6:29 pm
DEN
-
IAD
6h 20m
1 stop
$320Frontier
Tue, Aug 4 - Sat, Aug 8
Frontier Logo
9:38 pm - 2:01 pm
IAD
-
DEN
18h 23m
2 stops
Frontier Logo
6:30 am - 4:34 pm
DEN
-
IAD
8h 04m
1 stop
$322Frontier
Thu, Jul 30 - Mon, Aug 3
Frontier Logo
5:40 pm - 9:03 am
IAD
-
DEN
41h 23m
2 stops
Frontier Logo
10:29 pm - 8:20 am
DEN
-
IAD
7h 51m
1 stop
$323Frontier
Wed, Oct 7 - Mon, Oct 12
Multiple Airlines Logo
7:00 am - 2:00 pm
IAD
-
DEN
9h 00m
1 stop
Multiple Airlines Logo
6:40 pm - 10:38 am
DEN
-
IAD
13h 58m
1 stop
$324Multiple Airlines
Sat, Aug 1 - Thu, Aug 6
Frontier Logo
1:21 pm - 10:28 pm
IAD
-
DEN
11h 07m
2 stops
Frontier Logo
6:30 am - 4:40 pm
DEN
-
IAD
8h 10m
1 stop
$325Frontier
Fri, Oct 2 - Sun, Oct 4
Delta Logo
7:16 pm - 11:08 pm
IAD
-
DEN
5h 52m
1 stop
Delta Logo
6:00 am - 2:12 pm
DEN
-
IAD
6h 12m
1 stop
$326Delta
Fri, Jul 24 - Wed, Jul 29
Multiple Airlines Logo
9:03 pm - 3:03 pm
IAD
-
DEN
20h 00m
1 stop
Multiple Airlines Logo
10:29 pm - 8:20 am
DEN
-
IAD
7h 51m
1 stop
$328Multiple Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Denver flights

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.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Denver departing in September.

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

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Denver clicked on KAYAK for each day over the last 12 months.

For Washington Dulles Airport to Denver, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver back to Washington Dulles Airport, the best deals are generally found on Thursday, with Monday being the most expensive.

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 round-trip 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 $317 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $527 and $482 respectively.

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

The average round-trip 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 $404, 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 weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Denver, you should book around 3 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonFebruary
Cheapest flight$170
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 32% 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 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Denver was $169 for a one-way ticket and $315 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?

    Alaska Airlines, JetBlue, Delta, and Hawaiian 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 Airbus A321neo 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?

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

  • 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 $309 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $529 and an overall rating of 7.8.

  • 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.

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 $293 or less one-way and $485 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.

Prefer to fly direct from Washington Dulles Airport to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Denver Intl.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Denver Intl to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the 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.
8.0
SouthwestOverall score based on 4250 reviews
8.6Crew
7.5Entertainment
7.0Food
8.1Boarding
8.0Comfort
Airline reviews

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

8.0 ExcellentRobyn, Jul 2026
HOU - DEN
Read more Southwest reviews

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

We sat on the plane on the tarmac for 4 hours.

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

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.

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.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

Our bags took a long time to get unloaded once we landed.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

One of the best flights I’ve had. So smooth.

Because I can’t stand very long in one place, I was allowed to reword.

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Flight was late because our pilots were late. Also the air vents above our seat didn't work.

Flight is delayed by more than an hour without any reason, the jet blue gates kept changing every 20 mins and there is no proper communication. No ear phones provided in flight, there is a screen with entertainment but what is the use, I have earphones but the console has outdated audio connections, no usb C or bluetooth, they are living 15 years behind

Horrible. Flight was cancelled, jet blue app not working to rebook, no phone number available to call Jet Blue, 400 ish people in line for the help desk, stuck in Boston for 2 more days had to book new flight with a different airline and still not sure if I will be able to get any refund.

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight was on time and smooth. Customer service was decent

They forced me to check my hand luggage at the gate.

Still hasn’t left. Why are you asking how it was?

The pilots were awesome and got us there early. Great landing too. No complaints on the flight. Service - a young cabin crew woman was terrible as she seemed to hate her job and never smiled. Why do they hire people like that? Terrible. The cabin crew lead woman was wonderful - very professional (and more mature go figure)

It was awful ....my first time flying on it and I will NEVER fly it again ....everything about it was terrible .....most especially the flight attendants

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

It was an early flight and most people napped/slept and the crew let us which was nice.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

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.

Never offer anything to drink ☹️ Flight delayed gate moved poor communication

It’s a cheap airline. I wish they had better seats.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

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

Other airlines flying from Dulles Intl to Denver

Flights from the other most popular airlines that fly from Dulles Intl to Denver according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.