$79 Find Cheap Flights from Colorado to District of Columbia

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Low seasonAugust
Cheapest flight$79
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Denver to Reagan Washington National Airport

Flights from Colorado to District of Columbia: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Colorado to District of Columbia 
JasonFlew with United AirlinesDEN-IADNov 2024
DIA is a large airport. Get there early.
BindulFlew with United AirlinesDEN-IADFeb 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 Colorado to District of Columbia

  • How does KAYAK find such low prices on flights from Colorado to District of Columbia?

    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 Colorado to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Colorado to District of Columbia 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 Colorado to District of Columbia?

    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 from Colorado to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to District of Columbia?

    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 from Colorado to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to District of Columbia?

    Colorado and District of Columbia are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (64 flights per week), Copa Airlines (54 flights per week), and Brussels Airlines (26 flights per week).

  • How many airports are there in District of Columbia?

    There are 2 airports in District of Columbia. The busiest airport is Washington Dulles Airport (IAD), with 60% of all flights arriving there.

  • Which is the cheapest airport to fly into in District of Columbia?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in District of Columbia is Washington, D.C. Reagan-National Airport (DCA), with an average flight price of $145.

  • What is the cheapest day to fly to District of Columbia?

    Based on KAYAK data, the cheapest day to fly to District of Columbia is Friday where round-trip tickets can be as cheap as $326. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $409 on average.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the morning, when round-trip flights cost $315 on average. Morning departures are around 17% cheaper than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $595.

  • What is the cheapest flight to District of Columbia?

    The cheapest ticket to District of Columbia from Colorado found in the last 72 hours was to Baltimore, at $91 round-trip. The most popular route is Colorado Springs (COS) to Baltimore (BWI) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $91.

  • What is the cheapest month to fly from Colorado to District of Columbia?

    The cheapest month for flights from Colorado to District of Columbia is October, when tickets cost $227 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of round-trip tickets is $399 and $348 respectively.

  • How far in advance should I book a flight from Colorado to District of Columbia?

    To get a below average price on the flight from Colorado to District of Columbia, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

  • How many cities have direct flights to District of Columbia?

    From Colorado, there are direct flights to District of Columbia from 1 city. This city is Denver and there are 228 direct flights each week.

  • How many direct flights to District of Columbia are there each day?

    There are around 33 direct flights from within Colorado to District of Columbia every day. Most flights (61%) depart in the morning.

  • How many direct flights to District of Columbia are there each week?

    Each week there are around 228 direct flights from within Colorado to District of Columbia. The most common day for departures is Monday, with 15% of flights taking off on this day.

  • How long is the flight to District of Columbia?

    An average nonstop flight from Colorado to District of Columbia takes 6h 17m, covering a distance of 1581 miles. The shortest route is Denver (DEN) to Washington, D.C. Dulles Intl Airport (IAD) with an average flight time of 3h 15m.

  • How many long-haul flights are there to District of Columbia each week?

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to District of Columbia. Instead, there are 228 short-haul flights (up to 3 hour flight duration), with the most arriving from Denver.

  • What is the most popular destination in District of Columbia?

    Based on KAYAK flight searches, the most popular destination is Washington, D.C. (100% of total searches to District of Columbia).

Reviews of the top 5 airlines serving from Colorado to District of Columbia

 
Need help choosing which airline to fly with from Colorado to District of Columbia? 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 4242 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.0Food
7.5Entertainment
Airline reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

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

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

Terrible. They wouldn't allow me on my flight on the 14th..

IAD with the archaic people movers is just a place to be avoided.

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

United airlines, mediocre at best. No issues , nothing great . Worked for me

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Electric plugs didn't work. Entertainment system wasn't working

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Mechanical delay and no compensation. Missed connection as a result of their delay. Mediocre performance and service. Horrible airline currently with horrible culture.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

Any sort of gluten free snack option would be nice

The boarding crew was incredibly helpful getting me on an earlier flight

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

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.

Finally a Frontier on time and efficient. I've had problems before with your airline, but this time everything went fine.

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

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

Very bad! No good service delayed my second connection flight

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

Everything you need to know for your flight to District of Columbia

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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