$69 Find Cheap Flights from Washington, D.C. to Fort Collins

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Fort Collins departing on 12/25. 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

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

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

Wed, Jan 28 - Thu, Jan 29
Frontier Logo
8:00 am - 10:13 amDCA-DEN
4h 13mnonstop
Frontier Logo
7:40 am - 1:05 pmDEN-DCA
3h 25mnonstop
$130Frontier
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Sun, Jan 25 - Thu, Jan 29
Frontier Logo
5:20 pm - 12:21 pmIAD-DEN
21h 01m1 stop
Frontier Logo
11:59 pm - 2:42 pmDEN-IAD
12h 43m1 stop
$133Frontier
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Fri, Feb 20 - Mon, Feb 23
Multiple Airlines Logo
7:30 am - 1:18 pmBWI-DEN
7h 48m1 stop
Multiple Airlines Logo
2:43 pm - 11:38 pmDEN-BWI
6h 55m1 stop
$153Multiple Airlines
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Tue, Nov 18 - Wed, Dec 3
Multiple Airlines Logo
9:36 pm - 1:45 pmBWI-DEN
18h 09m2 stops
Multiple Airlines Logo
9:00 pm - 9:17 amDEN-BWI
10h 17m1 stop
$155Multiple Airlines
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Fri, Dec 12 - Tue, Dec 16
JetBlue Logo
6:00 am - 11:05 amDCA-DEN
7h 05m1 stop
JetBlue Logo
11:50 am - 10:59 pmDEN-DCA
9h 09m1 stop
$175JetBlue
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Sat, Dec 6 - Tue, Dec 9
Southwest Logo
3:55 pm - 5:50 pmIAD-DEN
3h 55mnonstop
Southwest Logo
4:50 pm - 10:00 pmDEN-IAD
3h 10mnonstop
$177Southwest
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Tue, Dec 9 - Wed, Dec 17
JetBlue Logo
6:00 am - 11:05 amDCA-DEN
7h 05m1 stop
JetBlue Logo
11:50 am - 10:59 pmDEN-DCA
9h 09m1 stop
$185JetBlue
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Wed, Dec 3 - Wed, Dec 3
American Airlines Logo
3:25 pm - 10:20 pmDCA-DEN
8h 55m1 stop
American Airlines Logo
11:59 pm - 9:14 amDEN-DCA
7h 15m1 stop
$190American Airlines
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Sat, Dec 6 - Thu, Dec 11
Southwest Logo
3:55 pm - 5:50 pmIAD-DEN
3h 55mnonstop
Southwest Logo
4:50 pm - 10:00 pmDEN-IAD
3h 10mnonstop
$197Southwest
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Sat, Jan 17 - Wed, Jan 21
American Airlines Logo
7:01 am - 6:13 pmIAD-DEN
13h 12m2 stops
American Airlines Logo
8:44 am - 4:31 pmDEN-IAD
5h 47m1 stop
$202American Airlines
Find Deal

Everything you should know

Cheapest round-trip
$130
Overall average: $214
Frontier
Wed 1/28Thu 1/29
DCA - DEN • Non-stop
Cheapest one-way
$69
Typical prices: $191-$295
Frontier
Thu 12/25
DCA - DEN • Non-stop
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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 Fort Collins!
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$69
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Reagan Washington National Airport to Denver

When to book flights from Washington, D.C. to Fort Collins

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Fort Collins based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Washington, D.C. to Fort Collins

  • Which airports will I be using when flying from Washington, D.C. to Fort Collins?

    When flying out of Washington, D.C. you’ll be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. Fort Collins does not have its own airport so you’ll be flying into nearby Denver Intl airport, which is 54.6 mi away.

  • How long does a flight from Washington, D.C. to Fort Collins take?

    Direct flights cover the 1,471 miles separating Washington, D.C. and Fort Collins in about 4h 05m.

  • How many flights are there between Washington, D.C. and Fort Collins?

    45 direct flights run between Washington, D.C. and Fort Collins on a daily basis. On average, there are about 316 departures each week.

  • What’s the cheapest day of the week to fly between Washington, D.C. and Fort Collins?

    Consider leaving on a Wednesday and avoid Tuesdays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

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

    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, D.C. to Fort Collins.

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

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

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

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

    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 Fort Collins from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights from Washington, D.C. to Fort Collins

  • There is no airport in Fort Collins. Instead, you’ll be flying into Denver Airport when flying between Washington, D.C. and Fort Collins.
  • The cheapest flight from Washington, D.C. to Fort Collins was found 85 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is August.

Reviews of the top 5 airlines serving Washington, D.C. to Fort Collins

 
Need help choosing which airline to fly with from Washington, D.C. to Fort Collins? 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 4243 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.0Food
7.5Entertainment
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

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

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

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

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

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.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

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

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

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

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