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Find Flight Deals 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: Tue Mar 10 2015 Return: Wed Mar 11 2015 Trip spans 2 days
Frontier
Frontier
SEA
6:20a
ORD
12:10p
5h 50m
1 stop
ORD
10:05a
SEA
4:20p
6h 15m
1 stop
Depart: Tue Mar 3 2015 Return: Wed Mar 11 2015 Trip spans 8 days
Frontier
Frontier
SEA
5:17a
ORD
10:50a
5h 33m
1 stop
ORD
10:05a
SEA
4:20p
6h 15m
1 stop
Depart: Tue Feb 10 2015 Return: Wed Feb 18 2015 Trip spans 9 days
Frontier
Frontier
SEA
2:50p
ORD
6:40a
15h 50m
1 stop
ORD
8:55a
SEA
4:05p
7h 10m
1 stop
Depart: Tue Mar 17 2015 Return: Tue Mar 24 2015 Trip spans 8 days
Frontier
Frontier
SEA
6:20a
ORD
12:10p
5h 50m
1 stop
ORD
10:05a
SEA
4:20p
6h 15m
1 stop
Depart: Wed Mar 18 2015 Return: Tue Mar 24 2015 Trip spans 7 days
Frontier
Frontier
SEA
6:20a
ORD
12:10p
5h 50m
1 stop
ORD
10:05a
SEA
4:20p
6h 15m
1 stop
Depart: Wed Feb 18 2015 Return: Tue Mar 3 2015 Trip spans 14 days
Frontier
Frontier
SEA
5:15a
ORD
11:10a
5h 55m
1 stop
ORD
8:55a
SEA
3:37p
6h 42m
1 stop
Depart: Wed Mar 4 2015 Return: Mon Mar 9 2015 Trip spans 5 days
Frontier
Frontier
SEA
5:17a
ORD
10:50a
5h 33m
1 stop
ORD
2:55p
SEA
7:40a
16h 45m
1 stop
Depart: Mon Mar 9 2015 Return: Tue Mar 10 2015 Trip spans 2 days
Frontier
Frontier
SEA
6:20a
ORD
12:10p
5h 50m
1 stop
ORD
10:05a
SEA
4:20p
6h 15m
1 stop
Depart: Thu Mar 19 2015 Return: Tue Mar 24 2015 Trip spans 6 days
Frontier
Frontier
SEA
6:20a
ORD
12:10p
5h 50m
1 stop
ORD
10:05a
SEA
4:20p
6h 15m
1 stop
Depart: Thu Mar 5 2015 Return: Mon Mar 9 2015 Trip spans 4 days
Frontier
Frontier
SEA
5:17a
ORD
10:50a
5h 33m
1 stop
ORD
2:55p
SEA
7:40a
16h 45m
1 stop
Depart: Wed Feb 25 2015 Return: Mon Mar 2 2015 Trip spans 6 days
Frontier
Frontier
SEA
5:15a
ORD
11:10a
5h 55m
1 stop
ORD
8:55a
SEA
3:37p
6h 42m
1 stop
Depart: Fri Feb 27 2015 Return: Wed Mar 4 2015 Trip spans 6 days
Frontier
Frontier
SEA
2:55p
ORD
5:45a
14h 50m
1 stop
ORD
8:55a
SEA
3:37p
6h 42m
1 stop
Depart: Thu Feb 19 2015 Return: Tue Mar 3 2015 Trip spans 13 days
Multiple Airlines
Multiple Airlines
SEA
6:50a
ORD
10:50a
4h 00m
nonstop
ORD
8:55a
SEA
3:37p
6h 42m
1 stop
Depart: Sat Feb 21 2015 Return: Wed Feb 25 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
3:30a
ORD
7:22a
3h 52m
nonstop
ORD
10:20a
SEA
2:55p
4h 35m
nonstop
Depart: Sun Feb 8 2015 Return: Wed Feb 11 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
6:50a
ORD
10:50a
4h 00m
nonstop
ORD
6:10a
SEA
10:47a
4h 37m
nonstop
Depart: Sat Feb 7 2015 Return: Tue Mar 3 2015 Trip spans 25 days
Delta
Delta
SEA
7:55p
MDW
3:26a
7h 31m
1 stop
MDW
10:07a
SEA
6:31p
8h 24m
1 stop
Depart: Sun Mar 1 2015 Return: Thu Mar 5 2015 Trip spans 5 days
United
United
SEA
5:51p
ORD
9:51p
4h 00m
nonstop
ORD
7:00a
SEA
11:36a
4h 36m
nonstop
Depart: Mon May 4 2015 Return: Sun May 10 2015 Trip spans 7 days
Delta
Delta
SEA
8:55p
ORD
5:33a
8h 38m
1 stop
ORD
2:30p
SEA
8:55p
6h 25m
1 stop
Depart: Thu Feb 5 2015 Return: Mon Feb 9 2015 Trip spans 5 days
Virgin America
Virgin America
SEA
2:00a
ORD
9:40a
7h 40m
1 stop
ORD
11:20a
SEA
7:05a
19h 45m
1 stop
Depart: Wed Jul 22 2015 Return: Sun Aug 2 2015 Trip spans 12 days
US Airways
US Airways
SEA
1:45p
ORD
9:08p
7h 23m
1 stop
ORD
1:00a
SEA
8:31a
7h 31m
1 stop
Change your search
Direct flights SEA to CHI on Delta
Flight # Depart SEA Arrive ORD Sun Mon Tue Wed Thu Fri Sat Valid Between
9008 8:30 am 2:22 pm Feb 9 - Feb 14
9008 8:30 am 2:22 pm Feb 19 - Feb 26
9008 8:30 am 2:22 pm Feb 24 - Mar 4
9008 8:30 am 2:22 pm Feb 16 - Feb 18
9008 8:30 am 2:22 pm Feb 8 - Feb 15
9008 8:30 am 2:25 pm Feb 3 - Feb 6
9008 8:30 am 2:25 pm Feb 1 - Feb 7
9008 8:30 am 2:25 pm Jan 26 - Feb 5
9008 8:30 am 2:22 pm Feb 28 - Mar 7
7511 12:35 pm 6:33 pm Feb 8 - Feb 22
7511 12:35 pm 6:33 pm Feb 9 - Feb 23
7511 12:35 pm 6:33 pm Feb 26 - Mar 5
7511 12:35 pm 6:32 pm Jan 27 - Feb 4
7511 12:35 pm 6:32 pm Jan 30 - Feb 6
7511 12:35 pm 6:33 pm Feb 27 - Mar 6
7511 12:35 pm 6:33 pm Feb 10 - Mar 3
7511 12:35 pm 6:33 pm Mar 4 - Mar 4
7511 12:35 pm 6:32 pm Feb 5 - Feb 5
Airports
Origin

Seattle
$278
Destination

Chicago
only $278
only $365