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Find Deals on Flights from Colorado Springs to Seattle/Tacoma Intl (COS - SEA)

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

Book cheap flights from Colorado Springs to Seattle/Tacoma Intl

(Round-trip)
Depart: Wed Aug 19 2015 Return: Tue Sep 1 2015 Trip spans 14 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Sun Sep 13 2015 Return: Fri Sep 18 2015 Trip spans 6 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:10a
3h 00m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Mon Sep 14 2015 Return: Sun Sep 20 2015 Trip spans 7 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:10a
3h 00m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Fri Sep 18 2015 Return: Sun Sep 27 2015 Trip spans 10 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:10a
3h 00m
nonstop
SEA
4:00a
COS
6:32a
2h 32m
nonstop
Depart: Wed Sep 23 2015 Return: Wed Sep 30 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:10a
3h 00m
nonstop
SEA
4:00a
COS
6:32a
2h 32m
nonstop
Depart: Fri Oct 16 2015 Return: Sun Oct 18 2015 Trip spans 3 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:14a
3h 04m
nonstop
SEA
4:00a
COS
6:32a
2h 32m
nonstop
Depart: Tue Aug 11 2015 Return: Tue Aug 25 2015 Trip spans 15 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Wed Aug 12 2015 Return: Tue Aug 25 2015 Trip spans 14 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Thu Aug 13 2015 Return: Tue Aug 25 2015 Trip spans 13 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Mon Oct 19 2015 Return: Mon Nov 2 2015 Trip spans 15 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:14a
3h 04m
nonstop
SEA
3:00a
COS
5:35a
2h 35m
nonstop
Depart: Tue Jun 2 2015 Return: Wed Jun 3 2015 Trip spans 2 days
Delta
Delta
COS
1:35p
SEA
8:08p
6h 33m
1 stop
SEA
7:05a
COS
12:08p
5h 03m
1 stop
Depart: Wed Jun 3 2015 Return: Thu Jun 4 2015 Trip spans 2 days
Delta
Delta
COS
1:35p
SEA
8:08p
6h 33m
1 stop
SEA
7:30a
COS
12:14p
4h 44m
1 stop
Depart: Thu Aug 20 2015 Return: Mon Aug 24 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Thu Sep 3 2015 Return: Sun Sep 6 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:10a
3h 00m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Sun May 31 2015 Return: Wed Jun 3 2015 Trip spans 4 days
United
United
COS
2:16a
SEA
6:54a
4h 38m
1 stop
SEA
1:24a
COS
6:11a
4h 47m
1 stop
Depart: Mon Aug 3 2015 Return: Sat Aug 22 2015 Trip spans 20 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
5:35a
COS
8:14a
2h 39m
nonstop
Depart: Tue Aug 4 2015 Return: Sat Aug 22 2015 Trip spans 19 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
5:35a
COS
8:14a
2h 39m
nonstop
Depart: Mon Aug 17 2015 Return: Tue Aug 25 2015 Trip spans 9 days
Alaska Airlines
Alaska Airlines
COS
9:45a
SEA
12:39p
2h 54m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Fri Sep 11 2015 Return: Thu Sep 17 2015 Trip spans 7 days
Alaska Airlines
Alaska Airlines
COS
8:10a
SEA
11:10a
3h 00m
nonstop
SEA
4:00a
COS
6:39a
2h 39m
nonstop
Depart: Thu Nov 26 2015 Return: Mon Nov 30 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
COS
7:10a
SEA
10:05a
2h 55m
nonstop
SEA
3:00a
COS
5:35a
2h 35m
nonstop
Direct flights COS to SEA on Alaska Airlines
Flight # Depart COS Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
3497 12:10 pm 2:05 pm May 21 - Jun 6
3497 1:45 pm 3:43 pm Jul 1 - Jul 11
3497 6:30 pm 8:28 pm Jun 7 - Jun 30
Airports
Origin

Colorado Springs
$275
Destination

Seattle
$275