COS - IAD

$165 Find Cheap Flights from Colorado Springs to Washington Dulles Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$255
Typical prices: $431-$656
Multiple Airlines
Fri 12/7Mon 12/10
COS - IAD • 2 stops
Cheapest one-way
$165
Typical prices: $238-$370
Delta
Fri 11/23
COS - IAD • 2 stops
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
September
Cheapest • 29% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $532 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 01m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
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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

Mon, Dec 7 - Thu, Dec 10
Multiple Airlines Logo
6:10 pm - 2:49 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
18h 39m2 stops Tampa St. Petersburg Atlanta Hartsfield-Jackson
Multiple Airlines Logo
3:08 pm - 5:20 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
28h 12m1 stop Tampa
$255Multiple Airlines
Mon, Dec 7 - Thu, Dec 10
Multiple Airlines Logo
6:10 pm - 2:49 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
18h 39m2 stops Tampa St. Petersburg Atlanta Hartsfield-Jackson
Multiple Airlines Logo
3:08 pm - 5:20 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
28h 12m1 stop Tampa
$273Multiple Airlines
Fri, Dec 4 - Thu, Dec 10
Multiple Airlines Logo
6:10 pm - 2:49 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
18h 39m2 stops Tampa St. Petersburg Atlanta Hartsfield-Jackson
Multiple Airlines Logo
3:08 pm - 5:20 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
28h 12m1 stop Tampa
$293Multiple Airlines
Mon, Dec 7 - Thu, Dec 10
Delta Logo
1:40 pm - 9:30 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 50m1 stop Atlanta Hartsfield-Jackson
Delta Logo
8:07 am - 12:33 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 26m1 stop Atlanta Hartsfield-Jackson
$319Delta
Mon, Dec 7 - Tue, Dec 8
Delta Logo
1:40 pm - 9:30 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 50m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 12:33 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
8h 33m1 stop Atlanta Hartsfield-Jackson
$319Delta
Wed, Dec 2 - Mon, Dec 7
American Airlines Logo
12:59 pm - 11:30 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
8h 31m1 stop Dallas/Fort Worth
American Airlines Logo
7:14 am - 12:09 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 55m1 stop Dallas/Fort Worth
$319American Airlines
Mon, Dec 7 - Wed, Dec 9
Delta Logo
1:40 pm - 9:30 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 50m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 12:33 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
8h 33m1 stop Atlanta Hartsfield-Jackson
$319Delta
Sat, Dec 5 - Sat, Dec 12
United Airlines Logo
12:10 pm - 8:49 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
6h 39m1 stop Houston George Bush Intcntl
United Airlines Logo
8:20 am - 12:37 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 17m1 stop Denver Intl
$339United Airlines
Sat, Dec 5 - Sat, Dec 5
United Airlines Logo
5:45 am - 12:58 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 13m1 stop Denver Intl
United Airlines Logo
5:39 pm - 9:59 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 20m1 stop Chicago O'Hare Intl
$385United Airlines
Thu, Dec 24 - Wed, Dec 30
United Airlines Logo
1:45 pm - 9:30 pmCOS  Colorado Springs-IAD Washington, D.C. Dulles Intl
5h 45m1 stop Denver Intl
United Airlines Logo
7:30 pm - 11:58 pmIAD  Washington, D.C. Dulles Intl-COS Colorado Springs
6h 28m1 stop Denver Intl
$397United 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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport. It’s 17% cheaper than the average day, while Tuesday is the most expensive, with prices 11% higher.

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

•September is the cheapest month to fly from Colorado Springs to Washington, D.C. Dulles Intl Airport at $405 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 118% 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

September

Cheapest flight

$165
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 50% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

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

    Two cabin classes are available on flights from Colorado Springs to Washington, D.C. Dulles Intl Airport:

    • Economy Class
    • First Class

  • 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 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.

  • 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 $431 to $656, with an average of $568 over the past 12 months. Anything below $431 counts as a good deal.

  • 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 $255 to $1,915. That means the highest observed fare was about 8x 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 $229, which is 25% below the typical average for this route.

  • 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 averaging $70 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • 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).

  • 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) - 76% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 15% of one-stop connections
    • Dallas/Fort Worth (DFW) - 7% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 2% of one-stop connections

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

    Yes. Flexible dates can save you up to 25% on flights from Colorado Springs to Washington, D.C. Dulles Intl Airport. Thursday is the cheapest departure day at $476 round-trip on average, while Tuesday is the most expensive at $633, a difference of $157.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 01m, compared with 6h 26m via Chicago O'Hare Intl (ORD) and 6h 36m 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 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.

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 are flexible, aim for a Thursday departure and avoid flying on Tuesday. On this route, Thursday flights average $476, about $157 less than Tuesday fares (25% 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 September. Fares historically average $405 round-trip in that month - typically $479 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.
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