Find cheap flights from Denver Intl to Washington Dulles Airport

DEN - IAD

Find cheap flights from Denver Intl to Washington Dulles Airport

Round-trip
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Denver (DEN)
Washington Dulles Intl
Fri 11/27
Fri 12/4
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Good to know

Low season

February Best time to beat the crowds with an average 34% drop in price.

High season

November Most popular time to fly with an average 24% increase in price.

Average price round-trip

$239 (avg. price over the last 2 weeks)

Good deal round-trip

$157 or less

Good deal one-way

$98 or less

When to book flights from Denver to Washington Dulles Intl

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $98 or less one-way and $157 or less round-trip.
  • The cheapest flight from Denver Intl to Washington Dulles Airport was found 32 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be October, November and December. The cheapest month to fly is February.
  • Morning departure is around 12% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Denver Intl to Washington Dulles Airport flights

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Top 4 airlines serving Denver Intl to Washington Dulles Intl

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 28,795 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Pros: "The flight attendants were all helpful and pleasant. The seats were comfortable. We were provided with plenty of liquids."
Cons: "The landing was pretty tough and we took off almost a half hour late."

Pros: "Very friendly gate attendants helped us fix the problem that our frequent flyer number had not been entered on the boarding pass. This may have been because of the booking co., Just Fly."
Cons: "Would have liked more seat options, like when I book on Delta's website. Didn't have enough advance warning."

Pros: "Food and entertainment was good"
Cons: "The bathroom I used was disgusting."

Cons: "Flight cancelled due to weather that was never bad but on the potential of bad weather. Had to scramble so my 18 year old son was not stranded overnight in a strange place and Delta does not help. Only rebooked a flight itinerary for the next day for a 4 hour flight with connections on a 1 hour direct flight. Spent an hour on line to figure out what to do. #neverdelta"

Pros: "Anything from free WiFi, entertainment, leg room, commentary drinks and snacks. Great service!"

Pros: "What a city.. Unique for hell sure..."
Cons: "Nothing"

Pros: "I could be wrong, but the seats were very comfortable (for a plane) and I felt my knees weren't as close to the seat in front of me than other airlines. So that's a plus."

Pros: "Nothing"
Cons: "That I couldn't reschedule due to the hurricane. I got stuck in Texas because of the hurricane. They didn't want to reschedule the flight because Denver was not apart of the affected area."

Pros: "Staff was courteous, flight uneventful but that's a good thing!"
Cons: "Long flight, difficult to sit that long (3 hrs plus)"

Pros: "Excellent crew and comfortable flight"

Pros: "Friendly Staff"
Cons: "Check in was very hectic due to limited staff and getting bumped by the red carpet flyers. Boarding is always a little congested due to the lines. Better snacks please!!"

Pros: "It's a nice, comfortable flight with plenty of entertainment options."
Cons: "The coffee on board is lousy, but I'm not sure that is much of a surprise."

Pros: "Comfortable flight, ample leg room, and the chairs were pretty plush. Comfort+ is pretty nice"
Cons: "On my first flight they forgot to turn the wifi on. I have unlim data but obviously can't use while in air; no big though."

Pros: "We purchased economy tickets in Delta. With these tickets you don't know where you are sitting until you get to the airport. Well, we lucked out and got the Plus seats! We got free alcoholic drinks, and big plush seats! We left right on time and got there early! Overall a great experience!"
Cons: "Nothing."

Pros: "flight attendants were great."
Cons: "not enough leg room and space. The business class should be at the minimum for economy."

Pros: "Great,I loved it!"

Pros: "Food, crew, boarding"
Cons: "I had a screen in front of me that did not work. It was annoying. Fix it."

Cons: "I fly Delta quite often, and am usually pleased with their service, but the morning of June 23 was terrible. I got to the airport in Denver at 5:30 am for a 7:30 am flight to Atlanta, and the line to check a bag was about 40 people long. I waited 55minutes to check my bag, as they kept moving the ski priority people, and people in danger of missing their flight, to the head of the line. There were obviously not enough Delta workers on staff to process all the flights at that time."

Pros: "The moviea"
Cons: "The time of night"

Pros: "Everything else fine."
Cons: "Made me check my bag - even though ther was plenty of overhead bin space."

Pros: "I didn't like anything because the fly leat 3 hours"

Pros: "The crew was polite and friendly"
Cons: "My second plane had sooo much moisture coming from the cooling system it looked like the passengers were getting gased and I kept getting wet from water condensation falling on me in a window seat as I tried to sleep from having such an early flight to begin with only to be told it's delayed 3 hrs without explanation."

Pros: "First we had a mechanical after boarding. I was rerouted through Atlanta. That flight is now delayed by 2hours. I then had to reroute to West Palm Beach instead of Ft Lauderdale. I will leave 9 hours after my original flight time and arrive 8 hours later. Just ridiculous"
Cons: "See above"

Pros: "The cabin crew serving the main cabin were exceptional. They were efficient, kind and FUN. We were an hour late leaving and 2/3 of the plane was worried about tight connections. They handled it with grace giving each person their departing gate and asking everyone to let a gentleman off with a 10 minute connection. They made the flight memorably enjoyable."
Cons: "Being an hour late isn't ideal and I understand that it wasn't their fault (the plane was late arriving into Denver. Those things happen. They still goto people to Detroit in time to make connections--barely."

Pros: "Free drinks in Comfort+"

Cons: "See above description"

Pros: "Smooth ride. Delta got everything right from takeoff to landing."

Pros: "Entertainment options"

Pros: "The flight attendants were so nice and accomadating. Even came by to refill our waters! I've never been on a flight with such friendly flight attendants!"

Pros: "Flight attendants were great."
Cons: "Movie and TV selection is not great for an international flight."

Pros: "Comfort with entertainment."
Cons: "No food options at all."

Pros: "Upgraded to first class"
Cons: "No entertainment system, no power outlet...for first class this is disgraceful"

Pros: "The flight crew was great"

Cons: "I drove 5 hours to get to the airport and unfortunately ended up delayed because of traffic and slow shuttles from parking. I arrived 1 hour before the flight, but security was so slow I didn't get to the gat until 10 minutes before arrival. There were no gate agents present and despite banging on the gateway door and other Delta agents at the adjacent gate, no one helped me. I can only surmise that they had already given away our seats, which were award tickets, GAINED BY BEING A LOYAL DELTA CUSTOMER. The gate agents were unapologetic and useless at rebooking, and I bought a ticket from Southwest instead. As i was trying to get to my sister's wedding, and repeatedly told the agents this, their behavior was particularly abominable. DELTA, YOU'VE LOST A LOYAL CUSTOMER."

Cons: "Seats too close - I'm not that tall and my knees were jammed against the seat in front of me."

Pros: "Was able to get on a flight after ours was cancelled. Delta was in scramble mode and their gate staff worked hard ot deal with a frustrated flying populaiton"
Cons: "After paying for first class round trip airfare, we were given seats in coach in the rear of the plane, in spite of empty seats (plenty of them) in first class and economy comfort."

Pros: "Plane was clean and staff were friendly"
Cons: "The snack options were quite average"

Pros: "Flight attendants were lovely"
Cons: "Nothing"

Pros: "The crew was very nice"
Cons: "Most of the food on the menu was not available"

Pros: "Excellent customer service. That doesn't seem to happen too often with airlines. Delta has been outstanding."
Cons: "No complaints."

Pros: "Flight took off on time and arrived about 30 minutes early."

Pros: "on time travel care in treating my visitors from Kenya Africa"

Pros: "The flights back to anchorage were much better than the flights out of anchorage. They were on time and everyone was very helpful."

Pros: "you still get a complimentary snack and drink"

Cons: "When I arrived in Atlanta, I asked an attendant at the Atlanta airport "how do I find gate B06?. He was very indignant with me. The Atlanta airport is very large, and confusing. I think that particular man should have been more considerate and helpful."

Cons: "I had no room to move and my legs were stuck"

Pros: "There was no entertainment and the flight served a small snack and drinks due to the shortness of the flight. So the marks in those two areas reflect more the shortness of the flight than Delta services. I liked the pre-flight tickets and the timeliness of all four flights."
Cons: "The plane was a little small."

Pros: "Only 15 mins."
Cons: "Seats were tight."

Cons: "The people taking the tickets were rude, only in Atlanta. The people in Denver taking tickets were very friendly."

Pros: "Left on time, arrived early!"
Cons: "When checking in, it indicated a smaller plane. I was not in a window seat and I had to check my baggage (and wait at the baggage terminal)."

Pros: "Captain asked passengers not making close connections to allow passengers with connections to deplane first was very helpful."
Cons: "Flight left late and arrived late making my connection in Philadelphia for a flight to Budapest a very close call."

Cons: "There was a three hour delay for missing crew."

Pros: "American"

Cons: "Two hour delay out of Denver, no crew."

Cons: "Such tiny seats."

Pros: "Crew was nice."
Cons: "Plane was very old (from the 90s?), cabin kept freezing all night. Now my husband's luggage has been lost and we are getting conflicting information on how to retrieve it."

Pros: "Comfortable flight except for limited leg room. Great movie selection."
Cons: "Poor leg room for tall people"

Pros: "Not using kayak"
Cons: "Kayak booked me the worst itinerary in the history of air travel!"

Pros: "Food was good. Staff was polite."
Cons: "Both flights were late leaving. Plus then we waited on board for a long time. Once on board and waiting, no explanation, no updates. No idea what was going on or why. An announcement would have helped a lot. Philky-Prg: Long delays with food , staff was slow on the Philly -Prg flight. Seemed like they didn't want to be there. No info from flight crew. Phily to Prg - Crappy old plane that should not be flying over seas anymore. Applies to both flights unless specified."

Pros: "The helpful steward"
Cons: "The bumpy ride"

Pros: "fairly comfortable, crew was helpful"
Cons: "Having to use my phone for entertainment, with no place to plug it in"

Cons: "I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!"

Cons: "We had five pieces of luggage lost during our flight from the U.S. to Spain. When we arrived in Madrid we were told that all five pieces had been located. When we went to pick them up the next day there were only four pieces at the airport. We were told the fifth suitcase would be delivered when it was located. It's ten days later and there's no sign of the luggage. It has taken multiple phone calls to get the information about the luggage correct. They assure me that they have everything correctly documented and then when I call back they haven't changed a thing. It has been a very frustrating process overall."

Pros: "Comfortable seats, good legroom."
Cons: "Not enough coffee for breakfast."

Pros: "Arrived 20 min early. Smooth flight."
Cons: "Didn’t have individual movie screens."

Pros: "Seats were comfortable enough"
Cons: "They force you to get to the airport really early."

Pros: "Food and entertainment were great"

Cons: "This was a BA flight on an American Airlines plane. Very small crowded and uncomfortable. My husband is 6'2" and barely fit in the seat."

Pros: "The crew was awesome."
Cons: "You guys lost our luggage!"

Pros: "Good connection"

Pros: "I like that American offers free movies thru their app but there was a glitch and I couldn't get it to work!"
Cons: "Couldn't get the entertainment app to work"

Pros: "There was nothing too bad other than I wasn't able to check in online bc our first leg of the flight was operated by American Airlines. But there wasn't anything that really stood out that would make me want to fly them again other than it was the best price."

Pros: "The crew was very helpful at each stop even though they weren't responsible for the disasters."
Cons: "Initially we thought we were flying with British Airways. We then had to do some digging to realize it was all out of American Airlines. Then we couldn't get proper boarding passes and luggage tags until one of the crew members spent a significant amount of time untangling each leg of our trip so they were in the proper order. We got delayed by 4 hours in Chicago and missed our connection in Manchester. We had another 5 hour wait there. By the time we got to Dublin, our bags didn't also arrive. After almost 24 hours of travel, we arrived but without all of our stuff."

Pros: "Easy flight, friendly crew."
Cons: "Girl next to me being sick the whole time"

Pros: "Flights attendants were super friendly and the plane was very clean"
Cons: "seats are uncomfortable"

Pros: "Excellent, friendly attention from flight attendants."

Pros: "Getting off of that plane."
Cons: "I understand delays happen and are sometimes out of your control. However, customer service is something that you can, should, and must control. I witnessed a lack of self control of the American employees (including a Supervisor) and every point of my trip w/your customers. I was embarrassed for the American executive team."

Pros: "The Denver airport is beautiful"
Cons: "I will never fly AA again - see below"

Pros: "Love the movies!!!"
Cons: "Passengers are allowed to take too much on the plane, which makes boarding & getting off take WAY TO LONG. If American would follow Southwest and allow 1 free bag, this problem would end. E"

Pros: "Overall great flight and great service. No complaints!"

Cons: "Late departure. Seats were double booked. Had to delay again to sort it out."

Pros: "I liked everything from the way they got everyone on the plane to getting everyone deplaned."
Cons: "I didn't have a problem with the airline. Just a couple of passengers."

Pros: "once I made it on it was smooth"
Cons: "plane in cos had to refuel so we were 20 late leaving and I bearly made it to next flight in dallas they were closing doors, young people ran but im old so could not move as fast, it was a challenge to not miss flight"

Cons: "I had to leaves Denver early due to my granddaughter needing help. To sees switch returns my ticket it would cost me me $200.00 but it could get a retire ticket for that day for $40.00. Why couldn't that dollar amount come of my ticket . That was just crazy"

Pros: "My departing flight crew was very accommodating for my baby and I. They were very pleasant."
Cons: "I wasn't able to board first with my baby, so I had to try and walk through all the passengers with a baby, diaper bag and small carry on. It was a little difficult."

Cons: "I had a severe back injury in Denver and they were unable to move my flight up a day to get home and see a doctor. A good friend had to buy me a new flight with his airline miles so that I could get home to relive my pain. I'll never fly American again because of this complete lack of compassion and care for their customer."

Pros: "The flight attendants on this flight were very nice and helpful."
Cons: "Extremely unorganized. Sat on the plane for about 2 hours before we could even take off. There method for lightening the plane was extremely poor. The entire plane ending up missing connecting flights. No food left to purchase...no drinks served to the back of the plane til about 3 1/2-4 hours into the flight."

Pros: "On time. Good crew and nicer flight."
Cons: "Actually no complaints."

Pros: "Entertainment modules in cabin were nice"
Cons: "Forced to check my bag in at the gate. Upon completion of boarding, there were several empty spaces in the overhead bins, and my bag could have fit easily. Upon arriving in Houston, baggage claim was VERY slow. Small flight of less than 30 people. Southwest had 3 flights arrive and complete baggage claims by the time our bags became available. Airport personnel confirmed that it is typical or normal for American because they operate with a small "skeleton" ground crew. Flight arrived just after 11:20pm,, but wasn't able to head out for transportation until after 12:30am. VERY upset and disappointed with service."

Cons: "Small narrow seats"

Pros: "For the first time, ticket counter from the Denver American air assistant patiently review the my connecting flight when flights were delayed twice!"
Cons: "AA keep announcing they will be delayed hour at the time and with east coast time changes, I almost couldn’t make it to fly second connection flight. They should give us guide line to exchange the connecting flights."

Pros: "Friendly service"
Cons: "Snacks"

Cons: "Flight was canceled going back to denver from Augusta. American did nothing to compensate me for their mechanics breaking. Had no place to sleep and no transportation as I return my rental. Poor customer service will never use American again!"

Pros: "Seat was comfortable, and my favorite on this aircraft - 3F on the MD80. Boarding was quick, and service was efficient once airborne."
Cons: "AA crews are skimping on pre-departure service, rarely offering PDBs (pre-departure beverages), or, when they do, half-assing it by putting water and OJ on a tray and making it clear nothing else is available as they did on this flight. It sets the expectations very low for the rest of the flight, and that's what happened."

Cons: "American delayed the flight 7 times before cancelling it. They then put me on a flight 7 hours after the initial departure time. That flight was delayed 7 times and then they cancelled it. I wasted 10 hours at the airport."

Pros: "how easy it was to purchase ticket on kayak."
Cons: "Being charged for my checked bag unexpectedly at check in."

Pros: "Arrived home safely"
Cons: "Arrived very early due to logistics and our flight was not leaving for 9 hrs and the AA Representative would only put us on a earlier flight if we paid a large fee, so we waited then the original flight was delayed 2 hours and we nearly missed our connection in another city, it all could have been avoided if a little flexability and care were involved to put us on a earlier flight"

Pros: "I was not provided a wheelchair, as requested, when I arrived in Charlotte. It was difficult to know where my connecting gate was due to a lack of visual monitors. However, I did find an airline employee very helpful. The flight leaving Charlotte was delayed, so my arrival time was pushed back an hour making it a challenge for my friend whom provided transportation home. I did find the kayak website easy to manage. I appreciate the opportunity to book my flight so easily."
Cons: "See previous statement."

Cons: "No movie, overnight flights would be great with side head rests, stewardesses were not nice, just ok"

Cons: "Kept us on plane for 90 mins while changed a fuel filter. This got us home at 230am."

Pros: "I missed my flight due to a delayed flight from denver to Washington. When I arrived I beg if there is a sooner flight to Geneva. They said no more. They book me another flight which has more connections. When I was waiting for my next flight there were actually more flight going and direct to Geneva before my flight. I even ask the gate personel if There is more seats avilable for one of those flight before my flight. They said yes but because I had a luggage it will take time to transfer my luggage and they will end up being delayed. United airlines is HORRIBLE!!! My flight were delayed and with that they should have more consideration for those costumers who were delayed. But instead of being kind and considerate. They had book me a later flight and the worse thing is the itenerary had more connections. Very Exhausting. The other costumer when we were in the line at the costumer service desk some people were given flight which are like 12 hrs away. How Horrible service. I WILL NOT FLY WITH UNITED AIRLINES AGAIN. Very POOR SERVICE."

Cons: "Offered a snack. The airplane magazine mentioned them, (for a cost) but they weren’t offered for sale."

Cons: "Need power outlets at seats."

Pros: "I like that I was added to the upgrade list. I used to loathe flying with United because the staff and crew were simply terrible. They were rude, unhelpful and could care less about what you needed. However, since that unfortunate incident of dragging that poor man off the plane a while back, you all have been trying very hard to get your butts in gear and do better and I see it. Keep improving the training is employees and I’ll be proud to fly with you all again."
Cons: "However the list is so long and not realistic that anyone will ever actually get upgraded. Im usually number 40 or higher and there are often maybe 4-6 actual upgrade seats. Guess it’s just a way to let everyone one where they stand so I gets it snktball awful."

Cons: "My passport was held up because of the Government shutdown and I was treated poorly about trying to change my ticket. I now can’t go because I can’t afford to change ticket and the waiver documents I need to do so sounds like it’s just another excuse from the airline for not honoring my ticket. I can’t go now because of passport, but I can’t go because I am unable to buy another ticket"

Cons: "Boarding delayed for cleaning. Then sat on tarmac for another 20 min"

Pros: "Staff was friendly"
Cons: "United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit."

Cons: "The plane was over two hours late! They decided to use a plane from Tokyo, so we got to wait for customs. I had just lost my mother and all I wanted to was get home. They kept saying soon. It doesn't seem efficient to use an international plane for domestic flights!"

Cons: "I paid extra to sit beside my girlfriend and bring a full size carry-on then the flight required that some people check their carry-ons because of space limitations. I would like to be reimbursed for the additional fee I paid to not check my bags."

Pros: "The flight actually had hot food for sale! The cheeseburger was pretty good."
Cons: "I had a really hard time getting the cabin crews' attention during boarding for a piece of safety equipment. I hit the call light, tried to catch them as the crew was distributing headphones, and the light got turned off by an off-duty flight attendant without checking that we needed something. I got it in the end with an apology from crew but I still don't feel terribly safe Also, the paid entertainment system that my neighbors purchased seemed to be down with static for a portion of the flight."

Cons: "Delayed flight due to "low air in tire" made me miss my connection to Iceland and ruined my very expensive vacation."

Cons: "Missed my connection due to late flight arrival and had to fly out the next day."

Cons: "Flight switched, old plane operated by Privelage Style, 0 entertainment and poor service throughout the 7 + hours from Chicago, flight an hour delayed as well"

Pros: "Economy class is super cramped. One of the flight attendants was unpleasant."

Pros: "flight was delaye and I almost missed my flight from Dulles to munich"

Cons: "It took an hour and 20 minutes to get our bags from baggage claim which is ridiculous"

Cons: "2-1/2 hour delay due to poor maintenance"

Cons: "Seats in economy were cramped! Chair barely leaned back at all. Woke up with a sore neck. Cabin was freezing!"

Pros: "The crew"
Cons: "The seats r too small"

Cons: "Gate attendant accused me of trying to get "free extra baggage" when I simply asked whether there would be gate-checking on this particular flight."

Cons: "since I am short, the neck portion of the seat is uncomfortable."

Pros: "Nothing"
Cons: "That my flight got delayed in Denver over an hour and I missed my flight from LA to BJX because of that. I was suppose to land in BJX At 6am on Friday April 28th for a family emergency and now my next flight isn't till 1pm! This is the worst flight experience I have ever had in my life. Never in my life will I ever fly with united again. My plans got ruined, I was forced to sleep on the cold dirty floor of LAX. This cost me a lot of time and money, and I am upset about it. I will tell all my peers about this horrible experience and encourage them to never fly with united ever again. I do expect some sort of compensation over this horrible experience."

Pros: "-Blue lighting and head space makes the plane feel more open. -Staff was patient considering the unfair backlash they were getting for the recent abuse of a United passenger. -Seats were well cushioned. -I arrived home to my family alive, unhurt, and safe."
Cons: "-2 hour delay (especially after I arrived 2 hours early) is unacceptable. -Overhead bins too low over our seats. We can't stand up straight at our seats making it very difficulty to get in and out of our seats. -Couldn't access entertainment on my Mac laptop. -Bathroom closets are too small. Floors in the bathroom were consistently wet because the sink is too small for people to wash their hands. -Two bathrooms for the majority of the passengers on the plane is just not enough and you know it. It's pretty uncivilized. It creates a line at the back of the plane covering at least 5 rows. Then, your aisles are too narrow. So we have to rub our bodies up against each other to let people squeeze through. -I think you guys could do better than one tiny bag of pretzel mix for a 5 hour flight. -Let's get upper management flying in economy across the country and see what they would change."

Cons: "We had to check our hand luggage and be charged EUR120.00 We should have been aware of this before we obtained the boarding pass..."

Pros: "Phone charger at every seat"
Cons: "Earphones for movie did not work"

Pros: "When I was flying red eye they made it really easy to sleep. Lots of room excellent."
Cons: "I was too drunk and my ears felt like they were bleeding but the staff was really nice"

Pros: "- The option to watch TV - The leg room"
Cons: "- No food options provided"

Pros: "Adequate space in coach. Available wifi for a fee Friendly efficient floor air crew"
Cons: "No free entertainment - no music All entertainment required your own device. Snobby head flight attendant"

Pros: "The crew members at the gate were friendly and courteous. The plane was clean and pretty new looking. The onboard crew were fine, for all the dealings I had with them. Our bags, which were gate checked, arrived with us and intact."
Cons: "The seats are narrow, and I'm not a wide person. They are crowded in every direction. The airline(s) crowds more people into limited space, then charges people to check baggage, yet they seem surprised and ill-equipped to deal with the lack of space for carryon bags, begging people to gate check before boarding, then scolding the last people who board for bringing their bags to their seats, expecting to find a place in the overhead bins for them. They charge for snacks other than 2 oz. of pretzels. If this is considered part of the hospitality industry, the company gets a failing grade. The individual staff do the best they can."

Pros: "I"
Cons: "I think United is improving constently"

Pros: "Everything."

Cons: "Seats are not comfortable and no leg room"

Pros: "That they were able to upgrade me"
Cons: "Wouldn't change a thing"

Pros: "El sistema de entretenimiento. Optimo"
Cons: "Nada"

Cons: "Bumped my head getting into the seat!!!!! The coffee machine was broken hence there was no coffee - this was a 10 am flight and the choice was a cool drink - Very poor."

Pros: "Like other airlines, United is charging more fees for seats to food. And the food they sell is bad. The breakfast was microwaved to horification. Why are airlines permited to give such low levels of service? Why are they allowed to charge extra fees for ordinary seats? And no complimentary entertainment. All that NOTHING" service and for very high fees.I got suckered into paying a lot extra for premium Economy. The Premium was the extra money they stole. The Economy was the new definition of bare bones."
Cons: "There was nothing to like about the flight."

Pros: "I liked nothing"
Cons: "I didn't like everything. All my United flight were delayed, the international was cancelled after waiting for 7 hours of delays."

Pros: "I was on an exit row so I had a lot of room and could sleep comfortably. The luggage came quickly and both pieces were there!"
Cons: "Noisy children kept waking me up but I know that was beyond the control of the airline."

Pros: "I did like that I had an open seat next to me. But not really much else"
Cons: "It was the only flight without entertainment. And it was the longest flight so I was completely bored. They didn't offer snacks and by the time the stewardess got to my row the for sale snack j was interested in was sold out."

Cons: "Very cold, no blankets, crew was helpful but seemed cold"

Pros: "Slightly more room, the person next to me was normal."
Cons: "Could not turn off screen in front of me? Didn't offer Dr. Pepper"

Pros: "The staff were excellent ! Great attitudes, great personalities,very informative staff and pilot!!"
Cons: "Both flights were delayed!"

Cons: "Delays! Numerous delays! No assistance to help with changing missed connections or getting a hotel while stuck in Chicago."

Pros: "Easy."
Cons: "No snack or entertainment."

Pros: "Getting to my destination"
Cons: "American Airlines."

Cons: "Nothing"

Pros: "The onboard movie choices were good broad selection available"
Cons: "The stewards were kinda rude saw one get hateful with a customer 2 rows up"

Cons: "Not enough ferraris."

Pros: "Flight crew very professional and pleasant. Flight departed on time and arrived ahead of schedule."
Cons: "Nothing at all. Very good experience."

Cons: "When I booked the return leg of my trip Kayak displayed a price of under $200 from Frontier but when redirected to Frontier’s site the time listed on kayak was only available for an additional $450+. I had to book a later flight resulting in a 14 hour layover."

Cons: "Slightly disorganized during boarding. Delayed departure. Miss informed about arrival time. Extremely unfortable seating. Food is more snacks than solid nutrition and even the snacks were hardly dispensed. Cabin became over heated, could smell jet fuel."

Pros: "The boarding process was the best part of the experience which isn't saying much."
Cons: "Extra fees for everything. I got a sore neck carrying my "personal bag" so as not to be charged. Not even a snack or beverage!! The worst part are the plastic bucket seats with very little padding and no head rests. I WAS MISERABLE AND UNCOMFORTABLE. The attendants were always explaining to MANY customers that they would have to pay for. Drinks-oh and you can only use a credit card. Cash isn't good enough"

Pros: "Boarding and crew were as good as could be."
Cons: "We were told to put carry on baggage underneath our crowded feet if we didn't pay for it. Those who paid were supposed to get the space above the seats. Boo hiss, Frontier."

Cons: "Miserable chairs. Hard, Can't recline, armrests are small and don't go up, mini trays vertually useless."

Pros: "Nothing."
Cons: "The ticket cost buys you the option to pay for a seat. To get a seat next to my wife, we paid $17 per seat that didn't recline (that is extra) and the seat themselves are hard plastic with a 2 mm thick pleather cover. Each bag was $45 and they charged for each carry on. Every drink including water was a fee...worst flight I have ever experienced. We paid for another airline on the return leg."

Pros: "On time departure."
Cons: "Despite buying a ticket, you have to pay again to pick a seat when you check in."

Pros: "Crew was nice."
Cons: "Seats very uncomfortable."

Cons: "THE most uncomfortable seats ever!! The seat bottom has been reduced in size by half - the edge hits mid-thigh - and all cushioning has been removed - like sitting on a folding chair, but less comfortable! And the pricing: I paid as much to bring my luggage with me as I did for my "seat". And to top it off, it was a red-eye flight and the crew were yacking the whole time. I will NEVER fly frontier again."

Pros: "cheap"
Cons: "The seats were hard and somewhat uncomfortable. I understand baggage fees, but I was dismayed at having to pay $12 to select a seat in the back of the plane."

Pros: "See comments above for flight from Las Vegas to Denver."
Cons: "See comments for flight from Las Vegas to Denver.......they certainly apply more so to this flight."

Pros: "The price of the tickets was the best part of the flight."
Cons: "This is definitely economy air. The seats are like 1" foam and do not recline at all. You must pay for anything extra you want like carry ons, drink cart, and snacks."

Pros: "Short Overlay stop"
Cons: "We waited too long when landing at Denver. Flight deck was professional."

Pros: "Once we got into the Gate, which was a problem coming and going into Denver --it was fine. We waited for a good 20-30 minutes to pull up to the gate. (on the way to Seattle, in Denver the wait was 40 minutes on the tarmac). Seems like Frontier must be struggling."

Pros: "The attendant on the first flight was engaging & did his best to entertain us while we were delayed 2 hours. It was a bad situation for all of us, passengers & crew, but when some passengers started to become unruly & rude he was able to diffuse some of the tempers."
Cons: "This month was my first time flying Frontier and I booked 3 flights within 10 days of each other. Huge mistake! My first flight was delayed 2 hours, after we had boarded, for "paperwork issues". My second flight was delayed 6--yes, that's SIX--hours for "system updates" and when we did finally arrive we spent another hour sitting on the runway waiting for a gate. And then it took another 40 minutes to unload our checked luggage, which also came up on the wrong carousel. My third flight, a red eye, was delayed an hour because the flight crew was late and this caused me to be late for work in the morning. Absolutely terrible and I will NEVER fly Frontier again. I thought the prices were a bargain but it's not worth the aggravation and waste of time. Save yourself a lot of headache and just spend a little more money."

Cons: "They lost my luggage and took over 24 hours to return it to me...."

Cons: "Flight was delayed 4+ hours and I missed my connecting flight. Frontier was not accommodating and did not handle the problem well."

Pros: "Staff at least was not rude."
Cons: "This is a nickle & dime charging airline. Sneaking in costs for baggage, sitting together with party, soda, etc. So searching this via Kayak is very misleading on price. Also delayed both ways as they could not get a gate for Frontier airlines in time. Seats were very uncomfortable. Lost our baggage as well."

Pros: "The flight was relatively cheap, before seating and claiming your bags, carry on or checked luggage."
Cons: "My flight was delayed 3 times until it said it was on time, then once I got to the terminal for my on-time flight, it was delayed 3 hours. A 11:54pm flight became a 2:54am flight. Even the captain had no idea why it was delayed. I missed my train home losing the money I had paid for that, and frontier customer service refused to help make other arrangements. I ended up ubering home, an hour drive. Frontier sent an apology e-mail with a $50 re-emburstment; since my time, missed ride home, and money spent is equivalent to a $50 voucher to their airline. Never again."

Cons: "Had to take a different airline, Frontier was unable to get us on another flight until the day we were supposed to return."

Pros: "Traveled with a special needs child and they allowed us to preboard."
Cons: "Uncomfortable seats, small trays, charge for everything."

Pros: "It was a smooth flight"
Cons: "The seats do not recline. You have to pay extra for everything including your carry on bag both ways."

Pros: "Overnight flight with very nice courtesy from the crew regarding lights and people who wanted to sleep."
Cons: "N/A on food and entertainment. Legroom very bad for tall people."

Cons: "- I was charged $60 for a carry on bag which was not listed as an additional charge when booking via KAYAK. in total I will end up paying $120 for 1 carry on luggage. Everyone I met was confused as it was the first time they paid for carry on luggage. - representatives were rude. - no leg space between seats. Seats could not be moved back to relax. THE WORST thing about the experience was None of this information was available on kayak while booking. I will book from Expedia next time."

Pros: "The plane did not crash."
Cons: "They were late, didn't rebook. Could not explain why they were late and provided no compensation. A terrible airline that I doubt will be operational in 5 years time."

Pros: "Same as above comment"

Pros: "The cost."
Cons: "No seat adjustment. My cosmetic bag was not delivered with my flight. Ended up getting it the next day, so ended up okay."

Pros: "They held the flight so thirty people coming on other other late frontier flights could make the connection."
Cons: "No inflight wifi options for purchase, no screens, no free beverages. Hard seats with a tray table so small that nothing could fit on it."

Pros: "Crew and pilot were helpful."
Cons: ". When I made my connecting Th seats were equally uncomfortable. I am an average fit person. This was a terribly uncomfortable flight as a result."

Cons: "If I knew ahead of time the type of service Frontier offers, I would've just paid extra for a different airline. At least I would've been happier with better service. Every Feontier employee I came into contact with was either jaded or grumpy as if hey hated their jobs, which made the experience even worse. All of my flights were delayed for whatever reason, and dealing with the staff made the experience that much worse. Most of them were so rude! I can't see how this airline exists!"

Cons: "CONTINUED : THEN THEY WANT TO PROMOTE THEIR CHARGE CARD , NEVER AGAIN WILL MAKE SURE TO SPREAD THE WORD ABOUT THIS ROTTEN AIRLINE"

Pros: "on time departure and crew professionalism"

Pros: "It was a short flight and the crew was great."
Cons: "Very very long line at check-in"

Pros: "We flew through terrible turbulence and did not crash. Landing alive is always nice."
Cons: "Departed over an hour late. No in flight entertainment at all. Seat did not recline (and it was not an exit row) so it made sleeping almost impossible. Had to pay extra for EVERYTHING, carry on luggage, choosing a seat, etc. Even coffee and soft drinks were extra! Only water was free. Will try to never fly Frontier again."

Pros: "the animal pictures on wing and tail"
Cons: "website unclear, necessities,(ie. seat,luggage) charged for AFTER fare paid unclean plane"

Pros: "Nothing really."
Cons: "Seats are terrible for more than one hour."

Pros: "The customer service I recieved after I asked to speak to a supervisor."
Cons: "Cons: Doesnt participate with Pre Check Doesnt HonorActive Duty Military IDs For Quicker Security Screening The seats in the airplane are so flimsy and hard my back pain flared up They Charge for EVERYTHING. In my travel I unfortunately had car trouble with my rental in which I ended up stuck in a sand pit and had to be towed out. Well I knew I would be missing my flight. When I called to change it I was charged $99 for changing my flight. Ok well next day comes around and I wasnt able to make it to the flight because I was falling asleep on the road and decided my personal safety was better than making the flight. Again withing a 10 hour period I called to reschedule my flight and again they wanted to charge me $115 this time because I had to change airports withing the same DC area. on my way from new mexico to colorado (driving) I got into a major car accident involving a semi in the desert on a high way and ended p with no car in TAOS New Mexico... when I called to again rebook my flight I was at the end of my patience I honestly had felt that the universe was conspiring against me keeping me in NM. I This time though I requested to speak to a supervisor and sure enough he was able to help me with out any extra charge to get my flight booked. The level of satisfactory customer service shouldnt be reserved until the customer is pissed off. nothing was more infuriating then to have outsourced customer service from india telling 99 99 99 99 99 and that he cant do anything about it.... If Frontier wants a better review then they need to stop cutting corners I will never fly with them again ....they are a knotch below Aeromexico in horrible customer service. _rene Vincit"

Cons: "90 minutes late plus 45 minutes waiting on baggage. Worst. Airline. Ever."

Pros: "Was on time"
Cons: "Frontier is terrible. Had to pay for carry on's $35/bag and $35/bag for checked bags. Was flying with my kids so we needed seats together. Add $500 total for the round trip. Basically should have flown United. the seats also did not reclined and I could barely move in my seat it was so tight. I will not fly Frontier again, ever."

Pros: "I arrived at my destination in one piece."
Cons: "Boarding was moved gates, delayed several times due to lack of crew, and the flight itself was cramped. Not even a water cart was available during the red eye across country."

Pros: "Crew was excellent"
Cons: "Could pick my seat and ended up near toilet with huge overweight person"

Cons: "Please see above, minus claustrophobic passenger."

Pros: "Airline had early boarding and early departure and arrival! Made going to my Daughters wedding a great sign of things to come! Thanks Frontier"

Pros: "I like the transparency of the crew. Even though the pilot was no where to be found, the new pilot and the crew were honest in letting us know why there was a delay."
Cons: "The seats were uncomfortable."

Pros: "Initial low fare seemed attractive at first, but the hidden additional fees..."
Cons: "The additional fees are absolutely unconscionable: the charge for FIRST checked bag, charge for 2nd carry-on bag, and - my personal favorite - the charge for getting an actual seat on the plane."

Pros: "Very nice stewardesses"
Cons: "The seats are unbearably upright and do not recline. When we tried to check in early for each leg of our round trip flight we found out that the flights were very overbooked and to reserve a seat on the plane we had to pay extra regardless of where we sat. I don't mean we had to pay extra for a nicer seat, or extra leg room...I mean every single seat on the plane cost money to tie to our names. When you factor in the carry on bag charges we ended up paying an extra couple hundred dollars on top of the price of the tickets. I will not be flying Frontier again, especially when a couple of the other budget plane companies don't charge for carry on bags or to simply get a seat on the plane we had already paid to fly on. I also was surprised to find out that I even had to pay for a cup of water mid-flight. I thought that it was against the law to refuse water to someone when they are thirsty, but the flight attendant assured me it wasn't."

Cons: "I didn't like that we were delayed by and hour and a half simply because the system was down. They should have had tech guys available to fix the problem right when it happened. I would like a voucher or some sort of refund for my time due to improper planning by frontier. The seats are also horribly uncomfortable. I couldn't get comfortable in any position. They aren't soft and they are too small."

Pros: "I got what I paid for. Except baggage. I paid for that on top of the total. The staff was great, though -- no complaints about service."
Cons: "The chairs were uncomfortable and the seat-back tables are unusable."

Pros: "We made it safely."
Cons: "The flight was delayed an hour because the crew was late. They boarded us and we sat for almost an hour on the plane, without any air circulation. People were seating through their clothes. Flight attendants said they couldn't let us off, or else we would have to go through security again. They said they shouldn't have let us on the plane without knowing how long the crew would take."

Cons: "No reason given why we didn't leave on time until 20 minutes after take off was supposed to happen. Please make your seats recline-able! Especially on a flight that flies overnight when everyone wants to sleep. Also don't turn on the plane lights when serving snacks and drinks on a flight that flies overnight when EVERYONE WANTS TO SLEEP. No one needs snacks at 2 am!!!"

Read more about Delta
COVID-19 information

Safety measures for airlines flying from Denver Intl to Washington Dulles Intl

Airlines flying from Denver Intl to Washington Dulles Intl have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters

Mandatory masks

Masks required on board, masks provided

Social distancing seating

Middle seats unavailable to book

Pre-flight testing

Testing for antibodies, testing for symptoms

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