IAD - DEN

$96 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 6/7. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
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
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Everything you should know

Cheapest round-trip
$199
Typical prices: $492-$293
Frontier
Sat 5/30Fri 6/5
IAD - DEN • 1 stop
Cheapest non-stop
$277
Typical prices: $458-$287
United Airlines
Sat 5/16Tue 5/19
IAD - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom on this route.
Southwest provides two free checked bags up to 50 lbs.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
Every day
You can fly direct with Southwest and United Airlines. Average duration is 4h 01m
Direct flights
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Direct flights
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Avoid delays
Most punctual • 87% on-time
Best time • Fewest delays
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Top layover airports
Cheapest • Avg $259 (round-trip)
Shortest trip • 6h 34m (one-way)
Insights
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Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 49% compared to booking last minute.
Insights
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When to travel
Cheapest • 20% price drop
Most popular
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
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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

Sat, May 30 - Fri, Jun 5
Frontier Logo
11:07 am - 10:24 pm
IAD
-
DEN
13h 17m
1 stop
Frontier Logo
10:29 pm - 8:12 am
DEN
-
IAD
7h 43m
1 stop
$199Frontier
Thu, May 14 - Mon, May 18
Frontier Logo
7:40 am - 2:04 pm
IAD
-
DEN
8h 24m
1 stop
Frontier Logo
11:54 pm - 10:12 am
DEN
-
IAD
8h 18m
1 stop
$200Frontier
Tue, May 19 - Wed, May 20
Frontier Logo
7:40 am - 2:04 pm
IAD
-
DEN
8h 24m
1 stop
Frontier Logo
6:30 am - 5:27 pm
DEN
-
IAD
8h 57m
1 stop
$202Frontier
Thu, May 28 - Thu, Jun 4
Frontier Logo
7:27 pm - 8:24 am
IAD
-
DEN
14h 57m
1 stop
Frontier Logo
11:54 pm - 10:12 am
DEN
-
IAD
8h 18m
1 stop
$203Frontier
Thu, May 21 - Tue, May 26
Frontier Logo
12:56 pm - 10:24 pm
IAD
-
DEN
11h 28m
1 stop
Frontier Logo
11:54 pm - 10:12 am
DEN
-
IAD
8h 18m
1 stop
$204Frontier
Sat, May 16 - Tue, May 19
Frontier Logo
7:27 pm - 8:24 am
IAD
-
DEN
14h 57m
1 stop
Frontier Logo
11:54 pm - 10:12 am
DEN
-
IAD
8h 18m
1 stop
$205Frontier
Fri, May 29 - Mon, Jun 1
Frontier Logo
8:47 pm - 9:05 am
IAD
-
DEN
14h 18m
1 stop
Frontier Logo
6:03 am - 11:09 pm
DEN
-
IAD
15h 06m
2 stops
$206Frontier
Mon, Jun 1 - Wed, Jun 3
Frontier Logo
11:07 am - 10:24 pm
IAD
-
DEN
13h 17m
1 stop
Frontier Logo
6:03 am - 5:27 pm
DEN
-
IAD
9h 24m
2 stops
$207Frontier
Wed, Jun 3 - Mon, Jun 8
Frontier Logo
11:07 am - 10:24 pm
IAD
-
DEN
13h 17m
1 stop
Frontier Logo
10:29 pm - 10:22 am
DEN
-
IAD
33h 53m
2 stops
$209Frontier
Wed, Jun 3 - Sat, Jun 6
Frontier Logo
9:12 am - 6:04 pm
IAD
-
DEN
10h 52m
1 stop
Frontier Logo
10:00 am - 11:09 pm
DEN
-
IAD
11h 09m
1 stop
$210Frontier
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 May.

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 Sunday 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 September, where tickets cost $288 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $453 and $407 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 49% 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$96
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 4% lower on average.
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 $96 for a one-way ticket and $199 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 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Denver, with oneworld 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 United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Denver are Southwest and United Airlines. With an average price for the route of $286 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $397 and an overall rating of 7.4.

  • 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 $223 or less one-way and $433 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

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Direct returns

Denver Intl to Washington, D.C. Dulles Intl

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,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 4315 reviews
7.0Food
8.6Crew
7.5Entertainment
8.0Comfort
8.1Boarding
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

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!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

I purchased ticket so our daughter ( a minor) can sit next to her mother. No help at gate after kayak insisted that this could be done. She ended sitting by herself

Flight was as expected. But it was delayed an hour. Also, my luggage got damaged. So that sucked especially since the damage made navigating the airport difficult. Walking to get ground transportation is sooo far away now and my checked bag was difficult to carry.

we were an hour delayed after boarding and given no reason. Headsets cost money. Also there were openrows with no one setting in them but we were told we were not allowed to swtich.

Crew was very friendly. Did not like being jammed in the back middle seat. Don’t understand why I can not select an aisle for free based on first come first serve. Also first time I’ve been on a flight which attempted land then circled Detroit airport multiple times.

Terrible. There was a lot of misleading information regarding ticketing, seat upgrades, & boarding group. I also expect my seat will recline. I have back problems & it is very painful for me of the seat doesn’t recline. In addition, when I choose a fare that allows me a carry-on bag, I expect to be able to carry it on. Not be forced to check it. Thos happened on my flight to MCO & back to Boston. Not sure I will ever fly JetBlue again. Further I bought the ticket through hat deal. I will NEVER do that again. They were incapable of providing an accurate record locator # for either leg of the trip. I had to call them before each flight with me VERY stressed about whether I would actually be able to get on my flight. Who does that? Who books flight & then FAILS to give an accurate record locator? Twice!

The flight was delayed 4 hours and the JetBlue people at the counter kept lying to us and telling us it was due to weather however all other flights were going in and out of NY and FL. Then they lied that the plane had to stop to refuel. Then they lied and said the plane needed a tire change. JetBlue is the worst. Then they gave a lot of people meal vouchers however I didn’t know they did that and they didn’t offer anything to me.

Overall a good experience, however Wifi was not working on the flight.

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.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

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

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

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!!!

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

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.