DEN - WAS

$89 Find Cheap Flights from Denver to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Washington, D.C. departing on 8/5. 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 Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Washington, D.C., 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 Denver to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$223
Typical prices: $537-$332
Allegiant Air, Frontier
Fri 5/29Mon 6/1
DEN - IAD • 1 stop
Cheapest non-stop
$247
Typical prices: $261-$172
Frontier
Thu 8/27Tue 9/1
DEN - DCA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
United's Economy Plus offers extra legroom on this route.
Choose wide-body flights for more comfort on United.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Cheapest • from $224 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Frontier, United Airlines and Southwest. Average duration is 3h 27m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 37% average savings
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $200 (round-trip)
Shortest trip • 4h 40m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 86% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Denver to Washington, D.C. (DEN-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Washington, D.C. 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 Denver to Washington, D.C.

Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
8:22 am - 3:46 pm
DEN
-
IAD
5h 24m
1 stop
Multiple Airlines Logo
8:47 pm - 2:04 pm
IAD
-
DEN
19h 17m
1 stop
$223Multiple Airlines
Fri, Oct 9 - Mon, Oct 12
Frontier Logo
8:59 pm - 12:43 pm
DEN
-
IAD
13h 44m
1 stop
Frontier Logo
7:00 am - 2:00 pm
IAD
-
DEN
9h 00m
1 stop
$224Frontier
Tue, Jun 23 - Wed, Jul 1
Frontier Logo
11:46 pm - 10:22 am
DEN
-
IAD
8h 36m
1 stop
Frontier Logo
7:30 am - 7:35 pm
IAD
-
DEN
14h 05m
2 stops
$226Frontier
Wed, Jul 29 - Wed, Aug 5
Frontier Logo
11:46 pm - 10:13 am
DEN
-
IAD
8h 27m
1 stop
Frontier Logo
11:17 am - 8:32 pm
IAD
-
DEN
11h 15m
2 stops
$227Frontier
Tue, Jun 16 - Tue, Jun 30
Frontier Logo
10:29 pm - 8:25 am
DEN
-
IAD
7h 56m
1 stop
Frontier Logo
7:30 am - 1:59 pm
IAD
-
DEN
8h 29m
1 stop
$228Frontier
Tue, Jun 23 - Sun, Jun 28
Frontier Logo
11:46 pm - 10:22 am
DEN
-
IAD
8h 36m
1 stop
Frontier Logo
8:57 pm - 9:49 pm
IAD
-
DEN
26h 52m
2 stops
$229Frontier
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
11:46 pm - 10:22 am
DEN
-
IAD
8h 36m
1 stop
Frontier Logo
9:55 am - 6:04 pm
IAD
-
DEN
10h 09m
1 stop
$230Frontier
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
8:22 am - 3:46 pm
DEN
-
IAD
5h 24m
1 stop
Multiple Airlines Logo
8:47 pm - 2:04 pm
IAD
-
DEN
19h 17m
1 stop
$231Multiple Airlines
Tue, Jun 9 - Fri, Jun 12
Multiple Airlines Logo
11:46 pm - 10:22 am
DEN
-
IAD
8h 36m
1 stop
Multiple Airlines Logo
3:06 pm - 10:12 pm
IAD
-
DEN
9h 06m
1 stop
$232Multiple Airlines
Mon, Jun 1 - Wed, Jun 3
Multiple Airlines Logo
8:22 am - 3:46 pm
DEN
-
IAD
5h 24m
1 stop
Multiple Airlines Logo
7:45 am - 2:04 pm
IAD
-
DEN
8h 19m
1 stop
$233Multiple Airlines
Booking Insights

KAYAK's insights & trends for Denver to Washington, D.C. flights

Get data-powered insights and trends into flights from Denver to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

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

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

What is the cheapest Denver to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Denver to Washington, D.C. costs $178 on the route between Denver (DEN) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 37% cheaper than other Denver-Washington, D.C. routes. The most popular route is between Denver (DEN) and Washington, D.C. Dulles Intl Airport (IAD).

What’s the cheapest day of the week to fly from Denver to Washington, D.C.?

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

When flying from Denver to Washington, D.C., you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Washington, D.C., 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 Denver to Washington, D.C. is January, where tickets cost $58 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $732 and $695 respectively.

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

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 $402, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Washington, D.C., 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 Denver to Washington, D.C., you should book around 3 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Washington, D.C.

 
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 Frontier, United Airlines, DCA 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 seasonJanuary
Cheapest flight$89
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Denver to Baltimore

When to book flights from Denver to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Denver to Washington, D.C. 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.

Flights from Denver to Washington, D.C.: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Denver to Washington, D.C. 
NguyenFlew with United Airlines
DEN
-
DCA
Mar 2026
Check in desk immediately when you come in the doors on the left of door 215. Get TSA touchless before the flight—the line is so much shorter.
NesrinFlew with Southwest
DEN
-
IAD
Feb 2026
Get a seat in the very front if you can, otherwise, it is a very slow process.
JasonFlew with United Airlines
DEN
-
IAD
Nov 2024
DIA is a large airport. Get there early.
BindulFlew with United Airlines
DEN
-
IAD
Feb 2024
There are multiple flights between DEN and IAD everyday, including some wide bodies. Try and get on one of the wide bodies whenever possible.

FAQs for booking flights from Denver to Washington, D.C.

  • How early should I get to Denver International Airport (DEN)?

    The airports have real-time wait time information on their website, so be sure to check that out. However, we recommend arriving 2h before your flight, so you have enough time to go through security and check in. Arriving early also helps you avoid last-minute inconveniences and the unexpected.

  • Can I rent a car at Dulles International Airport in Washington, DC?

    Yes. Consider renting a car upon arrival at IAD to visit some of the city's major attractions for an entertaining holiday trip. You can rent a car from one of the airport's car rental companies, such as Budget, Enterprise, Avis, Hertz, and Alamo. To connect to the car rental facilities, take the free shuttle buses near the Baggage Claim area in the Main Terminal.

  • Can I travel with my pet?

    You can travel with your furry friend from Denver International Airport (DEN) because the airport is animal friendly. It provides designated animal relief areas throughout the airport to ensure that your pet has a comfortable trip. They also offer cleaning materials in the relief areas. We recommend that you keep your pet on a leash or caged. The three airports in Washington D.C. are also pet friendly. You can contact your airline to inquire about their rules and guidelines on traveling with animals since they may vary between airlines.

  • Which is the best way to connect from Dulles International Airport to the downtown?

    Consider taking the Silver Line Metro from IAD to Downtown D.C., which is reliable and inexpensive. Reaching downtown Washington, DC, takes about 45 minutes due to multiple stops. You can also rent a car or taxi to Downtown Washington DC, which takes around 20 minutes.

  • Are there lounges in Denver International Airport?

    Denver International Airport has ensured that you get the best travel experience. The airport is endowed with many lounges, most airline-operated, where you can relax and unwind before you board your flight. Take advantage of the complimentary services and amenities offered by the lounges. You can contact your airline for information on airline lounges.

  • Can I leave some luggage at Denver International Airport?

    Due to rigorous security rules, Denver International Airport does not have luggage storage facilities. If you need to keep your luggage before or after your travel, Stasher can help under some fees depending on the period you'll be leaving it. Stasher is at the airport entrance, close to the car parking lot.

  • Are there nursing areas at DEN?

    The departure airport has ensured nursing mothers have a comfortable and private space for nursing their infants. DEN provides comfortable areas for nursing mothers to care for and breastfeed their young ones. The nursing rooms are centrally located in Concourse A, B, and C.

  • Can I travel with kids in Washington, DC, from Denver?

    Yes. Consider flying with American Airlines, which offers a variety of kid-friendly facilities on flights from Denver to Washington, DC. It has seats with enough legroom to sit comfortably with your kid on your lap. It also gives free snacks and allows some items on the plane, such as kid seats, strollers, booster seats, and bassinets.

  • Which nearby cities can I get to from Dulles International Airport?

    IAD serves Washington, D.C., and some nearby cities you can visit during your stay there. For instance, you can explore Mount Rainier, Friendship Village, Takoma Park, Hyattsville, and Silver Spring through IAD as the departure point.

  • Where can I park my car at Denver International Airport before flying to Washington, D.C.?

    Four airport lots allow you to consider parking your car at DEN airport. These include Garage (East and West), Economy (East and West), Pikes Peak Shuttle, and Valet parking lots. Each lot has its fees depending on the hours of parking. To avoid inconveniences, reserve a parking lot 24 hours before your flight.

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

    In the last 3 days, the lowest price for a flight from Denver to Washington, D.C. was $89 for a one-way ticket and $223 for a round-trip.

  • Do I need a passport to fly between Denver and Washington, D.C.?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Washington, D.C.?

    Only JetBlue offers inflight Wi-Fi service on the Denver to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Denver to Washington, D.C.?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Denver to Washington, D.C. flight route.

  • Which airline alliances offer flights from Denver to Washington, D.C.?

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

  • On which days can I fly direct from Denver to Washington, D.C.?

    There are nonstop flights from Denver to Washington, D.C. on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Denver to Washington, D.C. are Southwest and United Airlines. With an average price for the route of $315 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 $422 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Washington, D.C.?

    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 Denver to Washington, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Denver 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 Denver to Washington, D.C.?

    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 Washington, D.C. with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Washington, D.C.?

    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 Washington, D.C. from Denver 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 Denver to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $207 or less one-way and $382 or less round-trip.
  • Do you want to travel non-stop? The Denver International Airport (DEN) serves a variety of airlines, with some operating direct flights from DEN to Washington D.C. You can check the following airlines and choose one within your budget: Avianca, Frontier, United Airlines, Ethiopian Air, Copa Airlines, Southwest, Lufthansa, Scandinavian Airlines, Air Canada, and Brussels Airlines.
  • If you want to fly to Washington, D.C., from Denver, consider using Denver International Airport (DEN) as your departure point. This airport is a 25-minute drive from the city center. To connect easily from the city center, consider using the RTD airport railway, which is easier and affordable. Alternatively, you can use a taxi or car rental to connect from the city center to the airport.
  • Traveling with kids is easy when using Denver International Airport. The airport is parent-friendly and provides designated play areas for kids to get out some energy before your flight. Playing in the play area and riding on the Automatic Guideway Terminal System is a great way to keep your children busy as you do something else.
  • If you arrive late at Washington Dulles International Airport (IAD), consider booking a nearby hotel before continuing to your final destination in the morning. Consider staying at the Washington Dulles Airport Marriott on the airport's grounds or the Hilton Washington Dulles Airport, which is about 3 miles away and offers a free airport shuttle.
  • Denver International Airport is accessible to all passengers, including persons with disabilities. You can be sure to have a great travel experience with DEN. They have accessible garages fitted with elevators and restrooms equipped with height-adjustable adult changing tables. You can contact your airline if you need assistance with wheelchair services or any special assistance.
  • To catch up with your earliest flight from Denver International Airport (DEN), consider staying in one of the hotels close to the airport. For instance, you can book a room at The Westin Denver International Airport on a sleek glass building connected to the airport. If you have luggage, consider using the airport shuttle to connect at the departure terminals.
  • When flying from Denver to Washington D.C., you can arrive at three airports: Washington Dulles International Airport (IAD), Ronald Reagan Washington National Airport (DCA), and Baltimore Washington International Airport. However, Washington Dulles International Airport serves major cities and is a key hub for major airlines.
  • Flights through DCA may take longer because of a possible layover. You are likely to find cheaper flights to Dulles (IAD). If you are looking for affordability, you can consider IAD and BWI.

Prefer to fly direct from Denver to Washington, D.C.?

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

Direct departures

Denver Intl to Washington, D.C.

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

Direct returns

Washington, D.C. to Denver Intl

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Denver to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Denver to Washington, D.C.. 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 Denver to Washington, D.C.? 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 4294 reviews
7.5Entertainment
8.6Crew
7.0Food
8.0Comfort
8.1Boarding
Airline reviews

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

2.0 MediocreAnonymous, May 2026
MCO - MDW
Read more Southwest reviews

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

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.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

The staff at the check in counter was so rude. Made you feel Incompetent

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.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

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

They switched our terminal 3 times and we were delayed for four plus hours!!!

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

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

Everything you need to know for your flight from Denver to Washington, D.C.

Information on your arrival and departure airports