$100 Cheap Flights from Colorado Springs (COS) to Washington (DCA)

View $100 flight on Wed, Jul 2, 2025Opens in a new window
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Cheap Flights from Colorado Springs to Washington (COS-DCA)

Prices were available within the past 7 days and start at $100 for one-way flights and $199 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, May 24 - Thu, May 29
COS
Colorado Springs
DCA
Washington
$199 Roundtrip, found 4 days ago
$199
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, May 24 from Colorado Springs to Washington, returning Thu, May 29, priced at $199 found 4 days ago
Delta
Fri, Aug 29 - Sun, Aug 31
COS
Colorado Springs
DCA
Washington
$221 Roundtrip, just found
$221
Roundtrip
just found
Select Delta flight, departing Fri, Aug 29 from Colorado Springs to Washington, returning Sun, Aug 31, priced at $221 just found
United
Wed, Aug 6 - Tue, Aug 19
COS
Colorado Springs
DCA
Washington
$237 Roundtrip, just found
$237
Roundtrip
just found
Select United flight, departing Wed, Aug 6 from Colorado Springs to Washington, returning Tue, Aug 19, priced at $237 just found
Delta
Wed, Aug 6 - Tue, Aug 19
COS
Colorado Springs
DCA
Washington
$237 Roundtrip, just found
$237
Roundtrip
just found
Select Delta flight, departing Wed, Aug 6 from Colorado Springs to Washington, returning Tue, Aug 19, priced at $237 just found
American Airlines
Tue, Jun 3 - Thu, Jun 5
COS
Colorado Springs
DCA
Washington
$239 Roundtrip, found 6 hours ago
$239
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jun 3 from Colorado Springs to Washington, returning Thu, Jun 5, priced at $239 found 6 hours ago
American Airlines
Thu, Jul 3 - Mon, Jul 7
COS
Colorado Springs
DCA
Washington
$240 Roundtrip, just found
$240
Roundtrip
just found
Select American Airlines flight, departing Thu, Jul 3 from Colorado Springs to Washington, returning Mon, Jul 7, priced at $240 just found
Delta
Tue, Jul 1 - Sat, Jul 12
COS
Colorado Springs
DCA
Washington
$242 Roundtrip, found 10 hours ago
$242
Roundtrip
found 10 hours ago
Select Delta flight, departing Tue, Jul 1 from Colorado Springs to Washington, returning Sat, Jul 12, priced at $242 found 10 hours ago
Southwest Airlines
Fri, Aug 29 - Sun, Aug 31
COS
Colorado Springs
DCA
Washington
$244 Roundtrip, just found
$244
Roundtrip
just found
Select Southwest Airlines flight, departing Fri, Aug 29 from Colorado Springs to Washington, returning Sun, Aug 31, priced at $244 just found
Delta
Tue, May 6 - Tue, May 13
COS
Colorado Springs
DCA
Washington
$246 Roundtrip, found 2 days ago
$246
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, May 6 from Colorado Springs to Washington, returning Tue, May 13, priced at $246 found 2 days ago
Delta
Wed, Aug 27 - Sun, Aug 31
COS
Colorado Springs
DCA
Washington
$247 Roundtrip, found 4 days ago
$247
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Aug 27 from Colorado Springs to Washington, returning Sun, Aug 31, priced at $247 found 4 days ago

Frequently asked questions

How much does a flight from Colorado Springs Airport (COS) to Ronald Reagan Washington National Airport (DCA) cost?
Discover the latest flight deals from COS to DCA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from COS to DCA?
The cheapest flights from COS to DCA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from COS to DCA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from COS to DCA. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Colorado Springs Airport (COS) to Ronald Reagan Washington National Airport (DCA)?
There aren’t any daily nonstop flights from Colorado Springs Airport (COS) to Ronald Reagan Washington National Airport (DCA). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you’ll be on your way in no time.
What day of the week has the most flights from COS to DCA?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a range of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Colorado Springs Airport (COS) to Ronald Reagan Washington National Airport (DCA)?
To land at Ronald Reagan Washington National Airport (DCA) without delays, choose a flight that leaves from Colorado Springs Airport (COS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Washington from Colorado Springs Airport (COS)?
Compare your flight options from Colorado Springs Airport (COS) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). This is the only airport in Washington you can arrive at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Colorado Springs Airport (COS) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until just before your trip to book your flight from COS to DCA generally means paying more. While it’s possible to find some last-minute discounts, there’s no guarantee. Be flexible with your itinerary for the best chance of snagging a bargain.
Is it cheaper to book a COS to DCA flight and hotel package?
You’ll generally save money by securing a COS to DCA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s simple to manage it all in one place. After selecting your preferred accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Colorado Springs Airport (COS) to Ronald Reagan Washington National Airport (DCA)?
It’s usually possible to cancel or reschedule your COS to DCA flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are allowed and whether any costs are involved. You’ll also find more details on our Customer Service portal.
*Available to One Key members.