COS - IAD

$178 Find Cheap Flights from Colorado Springs to Washington Dulles Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$355
Typical prices: $401-$645
American Airlines
Wed 11/7Sun 11/11
COS - IAD • 1 stop
Cheapest one-way
$178
Typical prices: $222-$373
Delta
Tue 2/27
COS - IAD • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Colorado Springs and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
November
Cheapest • 35% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $529 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 04m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Colorado Springs to Dulles Intl (COS-IAD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colorado Springs to Dulles Intl

Sat, Nov 7 - Wed, Nov 11
American Airlines Logo
12:54 pm - 11:30 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
8h 36m1 stop Dallas/Fort Worth
American Airlines Logo
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
American Airlines Logo
8:00 am - 3:48 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 48m1 stop Dallas/Fort Worth
American Airlines Logo
7:14 am - 12:04 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 50m1 stop Dallas/Fort Worth
$355American Airlines
Wed, Oct 28 - Tue, Nov 3
American Airlines Logo
1:26 pm - 11:23 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
7h 57m1 stop Dallas/Fort Worth
American Airlines Logo
5:10 pm - 10:46 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
7h 36m1 stop Dallas/Fort Worth
$355American Airlines
Tue, Oct 6 - Tue, Oct 13
American Airlines Logo
10:27 am - 6:23 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 56m1 stop Dallas/Fort Worth
American Airlines Logo
7:13 pm - 11:31 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 18m1 stop Dallas/Fort Worth
$355American Airlines
Sat, Nov 14 - Wed, Nov 18
Delta Logo
6:00 am - 1:54 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 54m1 stop Atlanta Hartsfield-Jackson
Delta Logo
8:00 am - 5:28 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
11h 28m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$360Delta
Wed, Oct 28 - Tue, Nov 3
Delta Logo
6:00 am - 2:08 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
6h 08m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:23 am - 5:27 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
12h 04m2 stops Minneapolis St Paul Salt Lake City
$360Delta
Sat, Nov 7 - Wed, Nov 11
Delta Logo
6:00 am - 2:08 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
6h 08m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:25 am - 8:50 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
11h 25m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson
$360Delta
Thu, Nov 5 - Sun, Nov 8
United Airlines Logo
10:34 am - 5:55 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 21m1 stop Denver Intl
United Airlines Logo
6:10 am - 10:53 amIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 43m1 stop Denver Intl
$406United Airlines
Thu, Oct 1 - Tue, Oct 6
United Airlines Logo
8:38 am - 5:35 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
6h 57m1 stop Denver Intl
United Airlines Logo
12:40 pm - 4:26 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
5h 46m1 stop Denver Intl
$412United Airlines
Wed, Oct 14 - Wed, Oct 21
United Airlines Logo
8:00 am - 4:01 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
6h 01m1 stop Chicago O'Hare Intl
United Airlines Logo
6:10 am - 10:55 amIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 45m1 stop Chicago O'Hare Intl
$420United Airlines
Booking Insights

Price, demand and travel trends for Colorado Springs to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Colorado Springs to Washington, D.C. Dulles Intl Airport with more confidence.

How much is a round-trip flight from Colorado Springs to Washington, D.C. Dulles Intl Airport?

Round-trip flights from Colorado Springs to Washington, D.C. Dulles Intl Airport start at $355. Prices are below average for this route right now, with typical round-trip fares ranging from $401 to $645. The lowest price found in the past 5 days was $355 on American Airlines.

What's the cheapest day of the week to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport?

Friday is the cheapest day of the week to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport, it is 19% cheaper than the average day. Tuesday is the most expensive day with flight prices 17% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • November is the cheapest month to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport at $351 round-trip.
  • March ($884) and January ($662) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 151% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Colorado Springs to Washington, D.C. Dulles Intl Airport flights

Low season

February

Cheapest flight

$178
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from Colorado Springs to Washington, D.C. Dulles Intl Airport

When to book flights from Colorado Springs to Dulles Intl

Are your dates flexible? Find out the best times to travel from Colorado Springs to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Colorado Springs to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Colorado Springs to Washington, D.C. Dulles Intl Airport?

    Flights from Colorado Springs to Washington, D.C. Dulles Intl Airport usually depart from Colorado Springs (COS) and arrive at Washington, D.C. Dulles Intl (IAD).

  • What cabin classes can I book on flights from Colorado Springs to Washington, D.C. Dulles Intl Airport?

    Only Economy Class is available on flights from Colorado Springs to Washington, D.C. Dulles Intl Airport.

  • Which airports do connecting flights from Colorado Springs to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from Colorado Springs to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Denver Intl (DEN) - 77% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 15% of one-stop connections
    • Dallas/Fort Worth (DFW) - 5% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 3% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Colorado Springs to Washington, D.C. Dulles Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 31% on the Colorado Springs to Washington, D.C. Dulles Intl Airport route. Friday is the cheapest departure day at $441 round-trip on average, while Tuesday is the most expensive at $633, a difference of $192. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

  • How long is a flight from Colorado Springs to Washington, D.C. Dulles Intl Airport?

    A nonstop flight from Colorado Springs to Washington, D.C. Dulles Intl Airport takes 0h 00m, covering 1,459 miles.

  • Do I need a passport to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Colorado Springs to Washington, D.C. Dulles Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $311 to $1,628. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Colorado Springs to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Colorado Springs to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $196, which is 29% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Colorado Springs to Washington, D.C. Dulles Intl Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 04m, compared with 6h 25m via Chicago O'Hare Intl (ORD) and 6h 33m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Colorado Springs and Washington, D.C. Dulles Intl Airport?

    Washington, D.C. Dulles Intl Airport is 2 hours ahead of Colorado Springs (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Sixt
    • Thrifty

  • How much should I expect to pay for a Colorado Springs to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Colorado Springs to Washington, D.C. Dulles Intl Airport range from $401 to $645, with an average of $541 over the past 12 months. Anything below $401 counts as a good deal.

Your guide to booking Colorado Springs to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Tuesday. On this route, Friday flights average $441 - about $192 less than Tuesday (30% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Colorado Springs to Washington, D.C. Dulles Intl Airport trip for November. Fares historically average $351 round-trip in that month - typically $533 less than the most expensive month, which is March (based on the last 12 months).

More options for your flight from Colorado Springs to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental

Car rentals in Washington, D.C.
Hotels in Washington, D.C.
Vacations in Washington, D.C.