COS to IAD

Colorado Springs to Washington Dulles flight ticket price

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

COS
Colorado Springs (COS), United StatesColorado Springs
IAD
Washington Dulles (IAD), United StatesWashington Dulles International
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Live flights for Sat, 06 Jun 2026

Review fares, stops, timings and baggage. Use Search or View all flights for the complete search result.

Showing flight options for the selected travel date.
Currency: USD
Sat, 06 JunCOS to IAD$241 Sun, 07 JunCOS to IAD Mon, 08 JunCOS to IAD Tue, 09 JunCOS to IAD Wed, 10 JunCOS to IAD Thu, 11 JunCOS to IAD Fri, 12 JunCOS to IAD
Sort By:DepartureDurationArrivalPrice
Delta Air Lines
Delta Air Lines
DL-1074
06:00
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :29 M
1 Stop
ATL · 2h 50mAtlanta (ATL), United States
15:29
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$241
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Delta Air Lines
Delta Air Lines
DL-4449
11:55
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
9H :37 M
1 Stop
SLC · 3h 51mSalt Lake City (SLC), United States
23:32
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$241
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5559
05:30
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
5H :56 M
1 Stop
DEN · 1h 25mDenver (DEN), United States
13:26
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 3 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4725
08:45
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
8H :40 M
1 Stop
DEN · 3h 51mDenver (DEN), United States
19:25
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5400
10:23
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :02 M
1 Stop
DEN · 2h 15mDenver (DEN), United States
19:25
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 3 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4675
11:31
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
5H :54 M
1 Stop
DEN · 1h 08mDenver (DEN), United States
19:25
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 1 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4675
11:31
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :51 M
1 Stop
DEN · 3h 05mDenver (DEN), United States
21:22
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4030
12:06
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
8H :37 M
1 Stop
IAH · 2h 57mHouston (IAH), United States
22:43
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 5 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5620
12:56
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
6H :26 M
1 Stop
DEN · 1h 48mDenver (DEN), United States
21:22
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5620
12:56
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
8H :36 M
1 Stop
DEN · 3h 58mDenver (DEN), United States
23:32
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4647
13:49
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
5H :33 M
1 Stop
DEN · 0h 55mDenver (DEN), United States
21:22
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 1 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4647
13:49
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :43 M
1 Stop
DEN · 3h 05mDenver (DEN), United States
23:32
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-265
15:42
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
5H :50 M
1 Stop
DEN · 1h 15mDenver (DEN), United States
23:32
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$287
total fare
Non Refundable 4 Seat Left Economy
Cabin: Included
American Airlines
American Airlines
AA-1697
10:46
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
5H :48 M
1 Stop
DFW · 0h 53mDallas (DFW), United States
18:34
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$301
total fare
Non Refundable 6 Seat Left Economy
Cabin: Included
American Airlines
American Airlines
AA-6390
13:06
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :40 M
1 Stop
DFW · 2h 36mDallas (DFW), United States
22:46
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$301
total fare
Non Refundable 7 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5559
05:30
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
8H :23 M
1 Stop
DEN · 3h 45mDenver (DEN), United States
15:53
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 3 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5291
06:00
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
5H :26 M
1 Stop
DEN · 0h 55mDenver (DEN), United States
13:26
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 6 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5291
06:00
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :53 M
1 Stop
DEN · 3h 15mDenver (DEN), United States
15:53
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4029
07:30
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
9H :20 M
1 Stop
IAH · 3h 28mHouston (IAH), United States
18:50
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4725
08:45
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :13 M
1 Stop
DEN · 2h 24mDenver (DEN), United States
17:58
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4637
09:00
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
8H :02 M
1 Stop
ORD · 2h 50mChicago (ORD), United States
19:02
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-5634
09:20
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
8H :05 M
1 Stop
DEN · 3h 20mDenver (DEN), United States
19:25
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 2 Seat Left Economy
Cabin: Included

Recommended hotels in Washington Dulles

Stay options near the arrival city for the same travel date.

Search hotels
Hilton Garden Inn Philadelphia Ft. Washington
3.0Very GoodLive availability

Hilton Garden Inn Philadelphia Ft. Washington

- 530 Pennsylvania Ave, Fort Washington, PA 19034 ,

Free WiFiACBreakfast
Room availability is checked live
$235per night+ taxes if applicable

1 Night • 3 Star

United Airlines
United Airlines
UA-5400
10:23
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
5H :35 M
1 Stop
DEN · 0h 48mDenver (DEN), United States
17:58
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 4 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-1398
12:13
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
7H :09 M
1 Stop
ORD · 2h 13mChicago (ORD), United States
21:22
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$368
total fare
Non Refundable 1 Seat Left Economy
Cabin: Included
American Airlines
American Airlines
AA-782
08:01
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
8H :33 M
1 Stop
DFW · 3h 35mDallas (DFW), United States
18:34
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$403
total fare
Non Refundable 7 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-4696
07:00
2026-06-06
Colorado Springs (COS)United StatesColorado Springs
6H :53 M
1 Stop
DEN · 2h 15mDenver (DEN), United States
15:53
2026-06-06
Washington Dulles (IAD)United StatesWashington Dulles International
$494
total fare
Non Refundable 1 Seat Left Economy
Cabin: Included
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Fare highlights

Selected flight highlights for 06 Jun 2026.

Open full search
Lowest fare $241 Delta Air Lines 06:00
Earliest departure $287 United Airlines 05:30
Shortest duration $368 United Airlines 06:00
Night 00:00-05:59 $287 United Airlines at 05:30
Morning 06:00-11:59 $241 Delta Air Lines at 06:00
Afternoon 12:00-17:59 $287 United Airlines at 12:06
Evening 18:00-23:59 No option Open full search for more

Colorado Springs to Washington Dulles route details

Colorado Springs (COS)

Colorado Springs

United States

GMT -7

Latitude: 38.805801

Longitude: -104.700996

Washington Dulles (IAD)

Washington Dulles International

United States

GMT -5

Latitude: 38.94449997

Longitude: -77.45580292

Distance: Colorado Springs (COS), United States to Washington Dulles (IAD), United States - 2,349.72 km
Flights shown for 06 Jun 2026. View all flights opens the complete search result.

Colorado Springs to Washington Dulles - what to expect when booking

The COS to IAD cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 2,349.72 km.

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More flights from Colorado Springs (COS)10 routes
Colorado Springs → Atlanta
COS → ATL
Colorado Springs → Chicago
COS → ORD
Colorado Springs → Denver
COS → DEN
Colorado Springs → Dallas
COS → DFW
Colorado Springs → Houston
COS → IAH
Colorado Springs → Las Vegas
COS → LAS
Colorado Springs → Los Angeles
COS → LAX
Colorado Springs → Salt Lake City
COS → SLC
Colorado Springs → San Francisco
COS → SFO
Colorado Springs → Seattle
COS → SEA
More flights from Washington Dulles (IAD)22 routes
Washington Dulles → Abu Dhabi
IAD → AUH
Washington Dulles → Addis Ababa
IAD → ADD
Washington Dulles → Albany
IAD → ALB
Washington Dulles → Martinsburg
IAD → AOO
Washington Dulles → Amsterdam
IAD → AMS
Washington Dulles → Atlanta
IAD → ATL
Washington Dulles → Austin
IAD → AUS
Washington Dulles → Beckley
IAD → BKW
Washington Dulles → Beijing
IAD → PEK
Washington Dulles → Bogota
IAD → BOG
Washington Dulles → Boston
IAD → BOS
Washington Dulles → Brussels
IAD → BRU
Washington Dulles → Buffalo Ny
IAD → BUF
Washington Dulles → Burlington
IAD → BTV
Washington Dulles → Cancun
IAD → CUN
Washington Dulles → Charleston
IAD → CRW
Washington Dulles → Charlotte
IAD → CLT
Washington Dulles → Charlottesville
IAD → CHO
Washington Dulles → Chicago
IAD → MDW
Washington Dulles → Covington Ky
IAD → CVG
Washington Dulles → Clarksburg
IAD → CKB
Washington Dulles → Cleveland
IAD → CLE
Frequently asked questions - Colorado Springs to Washington Dulles flights
Generally yes. When your travel date is fixed, comparing live fares early gives you better visibility of timings, baggage and fare rules before prices change.
The approximate route distance between Colorado Springs (COS) and Washington Dulles (IAD) is 2,349.72 km. Actual flying distance can vary by airline routing.
Availability changes by airline schedule and date. Use the Stops filter to quickly check non-stop, one-stop and connecting options on this landing page.
Airline inventory can change within minutes. Book Now sends the selected result to the review flow where the fare is checked again before final booking.
Yes. The date strip and search box open the full search for the selected date, while this page keeps the route details easy to compare.