What is the cheapest airline that flies from Colorado Springs to Washington, D.C. Dulles Intl?

United Airlines and Delta are the most popular carriers operating from Colorado Springs to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Colorado Springs according to our data. United Airlines is the first choice among our users, with 80% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport?

Prices for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport are updated daily.

How many operators does momondo search for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport?

As of September 2026, there are 2 operators available to choose from for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport.

How old do you have to be to fly from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$178 Cheap Flights from Colorado Springs to Washington, D.C. Dulles Intl Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado Springs to Washington, D.C.

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:54 pm - 11:30 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

8h 36m1 stop Dallas/Fort Worth

7:14 am - 12:04 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 50m1 stop Dallas/Fort Worth

$355American Airlines

Sat, Nov 7 - Wed, Nov 11

8:00 am - 3:48 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

5h 48m1 stop Dallas/Fort Worth

7:14 am - 12:04 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 50m1 stop Dallas/Fort Worth

$355American Airlines

Sat, Nov 14 - Wed, Nov 18

6:00 am - 2:08 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

6h 08m1 stop Atlanta Hartsfield-Jackson

8:13 am - 12:21 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 08m1 stop Atlanta Hartsfield-Jackson

$355Delta

Wed, Oct 7 - Sat, Oct 17

6:00 am - 2:08 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

6h 08m1 stop Atlanta Hartsfield-Jackson

8:13 am - 12:30 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 17m1 stop Atlanta Hartsfield-Jackson

$355Delta

Wed, Oct 7 - Tue, Oct 13

6:00 am - 1:54 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

5h 54m1 stop Atlanta Hartsfield-Jackson

8:00 am - 12:26 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 26m1 stop Atlanta Hartsfield-Jackson

$355Delta

Tue, Nov 10 - Thu, Nov 12

1:26 pm - 11:23 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

7h 57m1 stop Dallas/Fort Worth

5:10 pm - 10:46 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

7h 36m1 stop Dallas/Fort Worth

$355American Airlines

Wed, Oct 28 - Tue, Nov 3

10:27 am - 6:23 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

5h 56m1 stop Dallas/Fort Worth

7:13 pm - 11:31 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 18m1 stop Dallas/Fort Worth

$355American Airlines

Tue, Oct 6 - Tue, Oct 13

1:29 pm - 11:25 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

7h 56m1 stop Denver Intl

6:10 am - 10:55 amIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 45m1 stop Chicago O'Hare Intl

$445United Airlines

Sat, Oct 10 - Wed, Oct 14

12:15 pm - 10:30 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

8h 15m1 stop Houston George Bush Intcntl

6:10 am - 10:55 amIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 45m1 stop Chicago O'Hare Intl

$445United Airlines

Wed, Oct 7 - Thu, Oct 15

1:29 pm - 11:25 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

7h 56m1 stop Denver Intl

6:10 am - 10:55 amIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 45m1 stop Chicago O'Hare Intl

$445United Airlines

Sat, Oct 10 - Sat, Oct 17

Cheap last minute flights

Enter your travel dates to find the best prices.

8:15 am - 8:14 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

9h 59m1 stop Salt Lake City

3:15 pm - 7:56 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 41m1 stop Atlanta Hartsfield-Jackson

$650Delta

Sat, Sep 12 - Tue, Sep 15

8:15 am - 8:14 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

9h 59m1 stop Salt Lake City

8:08 am - 12:14 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 06m1 stop Atlanta Hartsfield-Jackson

$661Delta

Sat, Sep 12 - Mon, Sep 21

6:11 pm - 9:09 amCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

12h 58m2 stops Salt Lake City Atlanta Hartsfield-Jackson

8:08 am - 12:14 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 06m1 stop Atlanta Hartsfield-Jackson

$666Delta

Sat, Sep 12 - Mon, Sep 21

6:11 pm - 10:03 amCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

13h 52m2 stops Salt Lake City Atlanta Hartsfield-Jackson

8:08 am - 12:14 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 06m1 stop Atlanta Hartsfield-Jackson

$666Delta

Fri, Sep 11 - Wed, Sep 16

7:45 am - 5:52 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

8h 07m1 stop Denver Intl

6:30 am - 10:21 amIAD Washington, D.C. Dulles Intl-COS Colorado Springs

5h 51m1 stop Denver Intl

$700United Airlines

Sat, Sep 12 - Sun, Sep 13

5:30 am - 1:30 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

6h 00m1 stop Denver Intl

6:13 am - 10:47 amIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 34m1 stop Chicago O'Hare Intl

$700United Airlines

Sat, Sep 12 - Mon, Sep 21

10:17 am - 8:24 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

8h 07m1 stop Dallas/Fort Worth

4:56 pm - 10:55 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

7h 59m1 stop Dallas/Fort Worth

$701American Airlines

Sat, Sep 12 - Mon, Sep 14

10:17 am - 8:24 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

8h 07m1 stop Dallas/Fort Worth

6:52 am - 12:05 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

7h 13m1 stop Dallas/Fort Worth

$701American Airlines

Sat, Sep 12 - Sun, Sep 13

12:20 pm - 10:45 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

8h 25m1 stop Houston George Bush Intcntl

6:15 am - 10:47 amIAD Washington, D.C. Dulles Intl-COS Colorado Springs

6h 32m1 stop Chicago O'Hare Intl

$706United Airlines

Fri, Sep 11 - Tue, Sep 15

10:17 am - 9:30 pmCOS Colorado Springs-IAD Washington, D.C. Dulles Intl

9h 13m2 stops Dallas/Fort Worth Charlotte Douglas

4:56 pm - 10:55 pmIAD Washington, D.C. Dulles Intl-COS Colorado Springs

7h 59m1 stop Dallas/Fort Worth

$706American Airlines

Sat, Sep 12 - Mon, Sep 21

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Delta flights from Colorado Springs to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Colorado Springs to Washington, D.C. Dulles Intl Airport flight tickets

Delta

Oct 7

COS6:00 amColorado Springs

6h 08m

1 stop

IAD2:08 pmWashington, D.C. Dulles Intl

Oct 17

IAD8:13 amWashington, D.C. Dulles Intl

6h 08m

1 stop

COS12:21 pmColorado Springs

$355

Delta

Oct 28

COS6:00 amColorado Springs

6h 08m

1 stop

IAD2:08 pmWashington, D.C. Dulles Intl

Nov 3

IAD7:23 amWashington, D.C. Dulles Intl

12h 04m

2 stops

COS5:27 pmColorado Springs

$360

Delta

Oct 28

COS1:31 pmColorado Springs

7h 45m

2 stops

IAD11:16 pmWashington, D.C. Dulles Intl

Nov 3

IAD7:23 amWashington, D.C. Dulles Intl

12h 04m

2 stops

COS5:27 pmColorado Springs

$366

United Airlines flights from Colorado Springs to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Colorado Springs to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines

Oct 10

COS1:29 pmColorado Springs

7h 56m

1 stop

IAD11:25 pmWashington, D.C. Dulles Intl

Oct 17

IAD6:10 amWashington, D.C. Dulles Intl

6h 45m

1 stop

COS10:55 amColorado Springs

$445

United Airlines

Dec 20

COS8:00 amColorado Springs

6h 03m

1 stop

IAD4:03 pmWashington, D.C. Dulles Intl

Jan 2

IAD5:28 pmWashington, D.C. Dulles Intl

5h 59m

1 stop

COS9:27 pmColorado Springs

$454

United Airlines

Oct 1

COS8:00 amColorado Springs

6h 01m

1 stop

IAD4:01 pmWashington, D.C. Dulles Intl

Oct 5

IAD5:27 pmWashington, D.C. Dulles Intl

6h 39m

1 stop

COS10:06 pmColorado Springs

$468

momondo Fare Finder

Use the filters below to find and compare flights from Colorado Springs to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Sat 11/7

12:54 pm-11:30 pm

1 stop8h 36m

Washington, D.C. Dulles Intl

Wed 11/11

7:14 am-12:04 pm

1 stop6h 50m

$355

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Sat 11/14

8:00 am-3:48 pm

1 stop5h 48m

Washington, D.C. Dulles Intl

Wed 11/18

7:14 am-12:04 pm

1 stop6h 50m

$355

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Wed 10/7

6:00 am-2:08 pm

1 stop6h 08m

Washington, D.C. Dulles Intl

Sat 10/17

8:13 am-12:21 pm

1 stop6h 08m

$355

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Wed 10/7

6:00 am-2:08 pm

1 stop6h 08m

Washington, D.C. Dulles Intl

Tue 10/13

8:13 am-12:30 pm

1 stop6h 17m

$355

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Tue 11/10

6:00 am-1:54 pm

1 stop5h 54m

Washington, D.C. Dulles Intl

Thu 11/12

8:00 am-12:26 pm

1 stop6h 26m

$355

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Wed 10/28

1:26 pm-11:23 pm

1 stop7h 57m

Washington, D.C. Dulles Intl

Tue 11/3

5:10 pm-10:46 pm

1 stop7h 36m

$355

Quickest round-trip

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Tue 10/6

10:27 am-6:23 pm

1 stop5h 56m

Washington, D.C. Dulles Intl

Tue 10/13

7:13 pm-11:31 pm

1 stop6h 18m

$355

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Sat 10/10

1:29 pm-11:25 pm

1 stop7h 56m

Washington, D.C. Dulles Intl

Wed 10/14

6:10 am-10:55 am

1 stop6h 45m

$445

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Wed 10/7

12:15 pm-10:30 pm

1 stop8h 15m

Washington, D.C. Dulles Intl

Thu 10/15

6:10 am-10:55 am

1 stop6h 45m

$445

Colorado SpringsWashington, D.C.

COS Colorado Springs - IAD Washington, D.C. Dulles Intl

COSIAD

Colorado Springs

Sat 10/10

1:29 pm-11:25 pm

1 stop7h 56m

Washington, D.C. Dulles Intl

Sat 10/17

6:10 am-10:55 am

1 stop6h 45m

$445

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado Springs to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Colorado Springs and Washington, D.C. Dulles Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $405 to $783.
The lowest price recently found on this route was $355.

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, November is the cheapest month to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $341. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of November, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $468.

How have Colorado Springs to Washington, D.C. Dulles Intl Airport flight prices changed over time?

When to book flights from Colorado Springs to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Colorado Springs to Washington, D.C. Dulles Intl Airport (COS to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado Springs to Washington, D.C. Dulles Intl Airport

Best Price Found	$178
Fastest flight time	5h 42m
Direct flights	None

The best one-way flight to Washington, D.C. Dulles Intl Airport from Colorado Springs in the past 72 hours is $178. The best round-trip flight deal from Colorado Springs to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $355.

The fastest flight from Colorado Springs to Washington, D.C. Dulles Intl Airport takes 5h 42m

There are no direct flights from Colorado Springs to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Colorado Springs to Washington, D.C. Dulles Intl Airport.

Search flight deals

Frequently asked questions about flying from Colorado Springs to Washington, D.C. Dulles Intl Airport

How far is Colorado Springs to Washington, D.C. Dulles Intl by plane?
The distance between Colorado Springs and Washington, D.C. Dulles Intl is about 1465.4 mi. By plane, this route typically takes 5h 42m.
When did momondo last update prices for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport?
As of September 2026, there are 2 operators available to choose from for flights from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado Springs Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Colorado Springs to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Colorado Springs to Washington, D.C. Dulles Intl Airport is United Airlines, representing 86% of all bookings. The subsequent popular airline is Delta at 14%.

Best airlines flying from Colorado Springs to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Colorado Springs to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $292	Free Cancellation	Rating 7.8 8,554 reviews		Search Delta flights
United Airlines	PriceFrom $316	Free Cancellation	Rating 7.4 10,194 reviews		Search United Airlines flights

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Why should I use momondo to find a flight deal from Colorado Springs to Washington, D.C.?

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Can I find flights from Colorado Springs to Washington, D.C. with flexible booking policies on momondo?

Flights from Colorado Springs to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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momondo provides multiple filters to help you find the best flight to Washington, D.C. from Colorado Springs. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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Of course. momondo tracks the price of Colorado Springs to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Colorado Springs to Washington, D.C. from $178

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Delta flights from Colorado Springs to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Colorado Springs to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines flights from Colorado Springs to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Colorado Springs to Washington, D.C. Dulles Intl Airport flight tickets

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Colorado Springs to Washington, D.C. Dulles Intl Airport

What is the typical price of a round-trip flight between Colorado Springs and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

How have Colorado Springs to Washington, D.C. Dulles Intl Airport flight prices changed over time?

What is the cheapest airline that flies from Colorado Springs to Washington, D.C. Dulles Intl?

What airlines fly to Washington, D.C. Dulles Intl Airport?

When to book flights from Colorado Springs to Washington, D.C. Dulles Intl Airport

Cheap Colorado Springs to Washington, D.C. Dulles Intl Airport (COS to IAD) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Colorado Springs to Washington, D.C. Dulles Intl Airport

Best airlines flying from Colorado Springs to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Colorado Springs to Washington, D.C. Dulles Intl Airport with momondo

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An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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