Browse Origins:
Browse Destinations:

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

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

Book cheap flights from Seattle/Tacoma Intl to Chicago

(Round-trip)
Depart: Fri Oct 30 2015 Return: Tue Nov 3 2015 Trip spans 5 days
Frontier
Frontier
SEA
6:25a
ORD
3:33p
9h 08m
1 stop
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
Depart: Fri Nov 6 2015 Return: Mon Nov 9 2015 Trip spans 4 days
Frontier
Frontier
SEA
5:25a
ORD
2:33p
9h 08m
1 stop
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
Depart: Thu Nov 12 2015 Return: Mon Nov 16 2015 Trip spans 5 days
Frontier
Frontier
SEA
5:25a
ORD
2:33p
9h 08m
1 stop
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
Depart: Fri Nov 13 2015 Return: Mon Nov 16 2015 Trip spans 4 days
Frontier
Frontier
SEA
5:25a
ORD
2:33p
9h 08m
1 stop
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
Depart: Thu Nov 19 2015 Return: Sun Nov 22 2015 Trip spans 4 days
Frontier
Frontier
SEA
5:25a
ORD
2:33p
9h 08m
1 stop
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
Depart: Sun Nov 22 2015 Return: Fri Nov 27 2015 Trip spans 6 days
Frontier
Frontier
SEA
5:25a
ORD
2:33p
9h 08m
1 stop
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
Depart: Thu Nov 26 2015 Return: Fri Nov 27 2015 Trip spans 2 days
Frontier
Frontier
SEA
5:25a
ORD
2:33p
9h 08m
1 stop
ORD
8:05a
SEA
3:33p
7h 28m
1 stop
Depart: Wed Dec 2 2015 Return: Sat Dec 5 2015 Trip spans 4 days
Frontier
Frontier
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
Depart: Thu Dec 3 2015 Return: Sun Dec 6 2015 Trip spans 4 days
Frontier
Frontier
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
Depart: Fri Dec 4 2015 Return: Sun Dec 6 2015 Trip spans 3 days
Frontier
Frontier
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
Depart: Thu Dec 10 2015 Return: Sun Dec 13 2015 Trip spans 4 days
Frontier
Frontier
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
Depart: Fri Dec 11 2015 Return: Sun Dec 13 2015 Trip spans 3 days
Frontier
Frontier
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
Depart: Mon Dec 14 2015 Return: Mon Jan 4 2016 Trip spans 22 days
Frontier
Frontier
SEA
5:45a
ORD
2:44p
8h 59m
1 stop
ORD
8:05a
SEA
3:40p
7h 35m
1 stop
Depart: Tue Sep 29 2015 Return: Wed Oct 7 2015 Trip spans 9 days
United
United
SEA
6:39a
ORD
1:52p
7h 13m
1 stop
ORD
1:30a
SEA
7:49a
6h 19m
1 stop
Depart: Sun Aug 30 2015 Return: Mon Aug 31 2015 Trip spans 2 days
American Airlines
American Airlines
SEA
2:10p
ORD
12:22a
10h 12m
1 stop
ORD
5:55a
SEA
10:23a
4h 28m
nonstop
Depart: Wed Sep 9 2015 Return: Thu Sep 10 2015 Trip spans 2 days
Sun Country Air
Sun Country Air
SEA
9:05a
MDW
2:45p
5h 40m
1 stop
MDW
4:00a
SEA
10:09a
6h 09m
1 stop
Depart: Tue Aug 25 2015 Return: Sat Aug 29 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
8:50p
ORD
12:46a
3h 56m
nonstop
ORD
3:50p
SEA
8:15p
4h 25m
nonstop
Depart: Thu Oct 1 2015 Return: Thu Oct 8 2015 Trip spans 8 days
US Airways
US Airways
SEA
11:04a
ORD
3:00p
3h 56m
nonstop
ORD
3:10a
SEA
7:47a
4h 37m
nonstop
Depart: Thu Sep 3 2015 Return: Sun Sep 6 2015 Trip spans 4 days
Delta
Delta
SEA
7:15p
ORD
3:43a
8h 28m
1 stop
ORD
8:03a
SEA
4:34p
8h 31m
1 stop
Depart: Fri Oct 23 2015 Return: Sun Oct 25 2015 Trip spans 3 days
Delta
Delta
SEA
4:05a
MDW
12:55p
8h 50m
1 stop
MDW
8:25a
SEA
5:35p
9h 10m
1 stop
Direct flights SEA to CHI on Delta
Flight # Depart SEA Arrive ORD Sun Mon Tue Wed Thu Fri Sat Valid Between
9008 8:35 am 2:30 pm Aug 2 - Aug 8
9008 8:35 am 2:30 pm Aug 1 - Aug 1
9008 8:35 am 2:30 pm Jul 14 - Jul 31
9008 8:35 am 2:30 pm Jul 10 - Jul 13
9008 8:35 am 2:30 pm Jul 6 - Jul 12
7511 12:45 pm 6:40 pm Aug 2 - Aug 2
7511 12:45 pm 6:40 pm Jul 23 - Aug 7
7511 12:45 pm 6:40 pm Jul 19 - Jul 26
7511 12:45 pm 6:40 pm Jul 13 - Jul 21
7511 12:45 pm 6:40 pm Jul 12 - Jul 12
7511 12:45 pm 6:38 pm Jul 6 - Jul 10
Airports
Origin

Seattle
$266
Destination

Chicago
only $266
only $320