$49 Find Cheap Flights from Colorado 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 to Washington, D.C. departing on 8/1. 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

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Cheap Flights from Colorado to Washington, D.C.

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

Wed, Aug 20 - Mon, Aug 25
Frontier Logo
12:34 am - 10:37 amDEN-BWI
8h 03m1 stop
Frontier Logo
4:12 pm - 8:15 pmBWI-DEN
6h 03m1 stop
$104Frontier
Find Deal
Tue, Jul 22 - Wed, Jul 30
Frontier Logo
12:59 am - 11:31 amDEN-BWI
8h 32m1 stop
Frontier Logo
12:31 pm - 9:17 pmBWI-DEN
10h 46m1 stop
$113Frontier
Find Deal
Wed, Aug 6 - Tue, Aug 12
Southwest Logo
8:20 am - 1:40 pmDEN-IAD
3h 20mnonstop
Southwest Logo
5:45 am - 7:20 amIAD-DEN
3h 35mnonstop
$177Southwest
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Sat, Aug 2 - Tue, Aug 5
United Airlines Logo
7:17 pm - 12:45 amDEN-IAD
3h 28mnonstop
United Airlines Logo
8:06 pm - 9:57 pmIAD-DEN
3h 51mnonstop
$187United Airlines
Find Deal
Wed, Sep 3 - Sun, Sep 7
United Airlines Logo
11:59 pm - 5:22 amDEN-IAD
3h 23mnonstop
United Airlines Logo
10:14 pm - 11:59 pmIAD-DEN
3h 45mnonstop
$188United Airlines
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Tue, Aug 19 - Tue, Aug 26
Delta Logo
6:00 am - 2:31 pmCOS-IAD
6h 31m1 stop
Delta Logo
6:15 am - 10:16 amIAD-COS
6h 01m1 stop
$237Delta
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Tue, Aug 19 - Tue, Aug 26
Delta Logo
5:55 pm - 6:00 amCOS-BWI
10h 05m1 stop
Delta Logo
7:20 am - 12:12 pmBWI-COS
6h 52m1 stop
$237Delta
Find Deal
Thu, Aug 7 - Wed, Aug 13
American Airlines Logo
5:09 pm - 1:05 amCOS-DCA
5h 56m1 stop
American Airlines Logo
11:30 am - 4:28 pmDCA-COS
6h 58m1 stop
$237American Airlines
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Thu, Aug 7 - Wed, Aug 13
Southwest Logo
4:20 pm - 11:50 pmCOS-DCA
5h 30m1 stop
Southwest Logo
3:35 pm - 10:00 pmDCA-COS
8h 25m2 stops
$242Southwest
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Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
6:02 am - 6:47 pmCOS-IAD
10h 45m2 stops
American Airlines Logo
12:48 pm - 10:08 pmIAD-COS
11h 20m2 stops
$261American Airlines
Find Deal
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Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$49
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Denver to Baltimore

Flights from Colorado to Washington, D.C.: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Colorado to Washington, D.C. 
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 Washington, D.C.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado 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 Colorado 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 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 Colorado with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado 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 Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Clinton

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

Cabin class types available on flights to Colorado

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

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