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Find Deals on Flights from Chicago to Seattle/Tacoma Intl (CHI - SEA)

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

Book cheap flights from Chicago to Seattle/Tacoma Intl

(Round-trip)
Depart: Sat Dec 5 2015 Return: Tue Dec 8 2015 Trip spans 4 days
Frontier
Frontier
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
Depart: Sat Nov 7 2015 Return: Tue Nov 10 2015 Trip spans 4 days
Frontier
Frontier
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
SEA
5:25a
ORD
2:33p
9h 08m
1 stop
Depart: Sat Nov 14 2015 Return: Tue Nov 17 2015 Trip spans 4 days
Frontier
Frontier
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
SEA
5:25a
ORD
3:29p
10h 04m
1 stop
Depart: Tue Dec 8 2015 Return: Tue Dec 15 2015 Trip spans 8 days
Frontier
Frontier
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
Depart: Thu Dec 10 2015 Return: Sun Dec 13 2015 Trip spans 4 days
Frontier
Frontier
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
Depart: Wed Sep 23 2015 Return: Tue Oct 27 2015 Trip spans 35 days
Frontier
Frontier
ORD
12:10p
SEA
8:07p
7h 57m
1 stop
SEA
6:25a
ORD
3:33p
9h 08m
1 stop
Depart: Thu Dec 3 2015 Return: Sat Dec 5 2015 Trip spans 3 days
Frontier
Frontier
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
Depart: Tue Sep 15 2015 Return: Tue Sep 22 2015 Trip spans 8 days
United
United
ORD
1:30a
SEA
7:49a
6h 19m
1 stop
SEA
6:52a
ORD
3:40p
8h 48m
1 stop
Depart: Wed Sep 16 2015 Return: Tue Sep 22 2015 Trip spans 7 days
United
United
ORD
1:30a
SEA
7:53a
6h 23m
1 stop
SEA
4:01a
ORD
3:40p
11h 39m
1 stop
Depart: Tue Sep 29 2015 Return: Tue Oct 6 2015 Trip spans 8 days
United
United
ORD
1:30a
SEA
7:49a
6h 19m
1 stop
SEA
6:39a
ORD
1:52p
7h 13m
1 stop
Depart: Wed Sep 30 2015 Return: Mon Oct 5 2015 Trip spans 6 days
United
United
ORD
1:30a
SEA
7:17p
17h 47m
1 stop
SEA
1:58p
ORD
3:59a
14h 01m
1 stop
Depart: Wed Oct 7 2015 Return: Tue Oct 13 2015 Trip spans 7 days
United
United
ORD
1:30a
SEA
7:49a
6h 19m
1 stop
SEA
4:00a
ORD
5:36p
13h 36m
1 stop
Depart: Tue Oct 13 2015 Return: Tue Oct 20 2015 Trip spans 8 days
United
United
ORD
1:30a
SEA
7:49a
6h 19m
1 stop
SEA
6:39a
ORD
1:52p
7h 13m
1 stop
Depart: Mon Sep 14 2015 Return: Fri Sep 18 2015 Trip spans 5 days
Sun Country Air
Sun Country Air
MDW
4:00a
SEA
2:34p
10h 34m
1 stop
SEA
9:05a
MDW
2:45p
5h 40m
1 stop
Depart: Sat Oct 24 2015 Return: Wed Nov 4 2015 Trip spans 12 days
Virgin America
Virgin America
ORD
7:45a
SEA
8:45p
13h 00m
1 stop
SEA
2:00a
ORD
3:30p
13h 30m
1 stop
Depart: Sun Oct 18 2015 Return: Tue Oct 20 2015 Trip spans 3 days
American Airlines
American Airlines
ORD
3:10a
SEA
7:47a
4h 37m
nonstop
SEA
2:40a
ORD
9:56a
7h 16m
1 stop
Depart: Wed Oct 21 2015 Return: Tue Nov 3 2015 Trip spans 14 days
Alaska Airlines
Alaska Airlines
ORD
1:30p
SEA
7:18p
5h 48m
1 stop
SEA
3:00a
ORD
9:18a
6h 18m
1 stop
Depart: Tue Aug 18 2015 Return: Tue Aug 25 2015 Trip spans 8 days
Delta
Delta
ORD
12:15p
SEA
8:50p
8h 35m
1 stop
SEA
3:15a
ORD
11:57a
8h 42m
1 stop
Depart: Sat Sep 5 2015 Return: Sat Sep 12 2015 Trip spans 8 days
Delta
Delta
MDW
11:20a
SEA
8:58p
9h 38m
1 stop
SEA
5:00a
MDW
2:10p
9h 10m
1 stop
Depart: Mon Aug 10 2015 Return: Tue Aug 25 2015 Trip spans 16 days
US Airways
US Airways
ORD
8:00a
SEA
12:39p
4h 39m
nonstop
SEA
1:40p
ORD
5:37p
3h 57m
nonstop
Direct flights CHI to SEA on Delta
Flight # Depart ORD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9015 8:00 am 10:25 am Aug 5 - Aug 12
9015 8:00 am 10:25 am Aug 2 - Aug 14
9015 8:00 am 10:27 am Jul 20 - Jul 31
9015 8:00 am 10:27 am Jul 19 - Jul 19
9015 8:00 am 10:27 am Jul 12 - Jul 17
8992 3:30 pm 5:55 pm Aug 11 - Aug 20
8992 3:30 pm 5:55 pm Aug 10 - Aug 10
8992 3:30 pm 5:55 pm Aug 7 - Aug 14
8992 3:30 pm 5:55 pm Aug 2 - Aug 8
8992 3:30 pm 5:55 pm Aug 1 - Aug 1
8992 3:30 pm 5:55 pm Jul 14 - Jul 31
Airports
Origin

Chicago
only $266
only $330
Destination

Seattle
$266