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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Colorado Springs to Washington Dulles Intl

(Round-trip)
Depart: Tue Sep 19 2017 Return: Sat Sep 23 2017 Trip spans 5 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Mon Jul 17 2017 Return: Fri Jul 21 2017 Trip spans 5 days
Major Airline
Major Airline
COS
7:35a
IAD
10:54a
3h 19m
nonstop
IAD
11:50p
COS
3:44a
3h 54m
nonstop
Depart: Wed May 17 2017 Return: Wed May 31 2017 Trip spans 15 days
United
United
COS
7:28a
IAD
2:13p
6h 45m
1 stop
IAD
8:35a
COS
5:04p
8h 29m
1 stop
Depart: Fri May 5 2017 Return: Mon May 8 2017 Trip spans 4 days
Delta
Delta
COS
2:00a
IAD
8:05a
6h 05m
1 stop
IAD
10:45a
COS
7:15p
8h 30m
1 stop
Depart: Wed Oct 11 2017 Return: Tue Oct 17 2017 Trip spans 7 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Thu Sep 7 2017 Return: Sat Sep 9 2017 Trip spans 3 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Mon Sep 11 2017 Return: Wed Sep 27 2017 Trip spans 17 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Sat Aug 19 2017 Return: Tue Aug 29 2017 Trip spans 11 days
Frontier
Frontier
COS
11:35a
IAD
2:54p
3h 19m
nonstop
IAD
3:50a
COS
7:44a
3h 54m
nonstop
Depart: Sat Oct 14 2017 Return: Sat Oct 21 2017 Trip spans 8 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Fri May 19 2017 Return: Tue May 30 2017 Trip spans 12 days
American Airlines
American Airlines
COS
2:15a
IAD
8:15a
6h 00m
1 stop
IAD
2:55p
COS
8:59p
6h 04m
1 stop
Depart: Tue Oct 17 2017 Return: Tue Oct 24 2017 Trip spans 8 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Wed Oct 18 2017 Return: Tue Oct 24 2017 Trip spans 7 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Thu Aug 24 2017 Return: Thu Sep 7 2017 Trip spans 15 days
Frontier
Frontier
COS
11:35a
IAD
2:54p
3h 19m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Mon Jun 26 2017 Return: Mon Jul 3 2017 Trip spans 8 days
United
United
COS
11:05a
IAD
5:29p
6h 24m
1 stop
IAD
4:35a
COS
2:00p
9h 25m
1 stop
Depart: Tue Oct 10 2017 Return: Thu Oct 19 2017 Trip spans 10 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
Depart: Mon Jun 5 2017 Return: Tue Jun 13 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
COS
2:20p
IAD
10:17a
19h 57m
1 stop
IAD
1:20p
COS
3:45p
26h 25m
1 stop
Depart: Thu Jun 22 2017 Return: Mon Aug 21 2017 Trip spans 61 days
United
United
COS
2:40a
IAD
7:41a
5h 01m
1 stop
IAD
3:27p
COS
8:54p
5h 27m
1 stop
Depart: Wed May 10 2017 Return: Sat May 13 2017 Trip spans 4 days
Delta
Delta
COS
2:00a
IAD
10:45a
8h 45m
1 stop
IAD
2:00a
COS
1:12p
11h 12m
2 stops
Depart: Sat Jul 1 2017 Return: Sun Jul 9 2017 Trip spans 9 days
Major Airline
Major Airline
COS
10:55a
IAD
6:17a
19h 22m
1 stop
IAD
9:20a
COS
12:15p
26h 55m
1 stop
Depart: Thu Oct 19 2017 Return: Tue Oct 24 2017 Trip spans 6 days
Frontier
Frontier
COS
11:35a
IAD
2:59p
3h 24m
nonstop
IAD
4:05a
COS
8:05a
4h 00m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Colorado Springs
$182
Destination

Washington
$182