Find Cheap Flights from Seattle to Chicago

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

Book cheap flights from Seattle to Chicago

(Round-trip)
Depart: Tue Oct 3 2017 Return: Wed Oct 4 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
SEA
ORD
12h 18m
1 stop
ORD
SEA
9h 05m
1 stop
Depart: Wed Jul 19 2017 Return: Mon Jul 24 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
ORD
4h 04m
nonstop
ORD
SEA
4h 26m
nonstop
Depart: Fri Aug 4 2017 Return: Sun Aug 13 2017 Trip spans 10 days
United
United
SEA
ORD
3h 48m
nonstop
ORD
SEA
4h 29m
nonstop
Depart: Sat Sep 2 2017 Return: Wed Sep 6 2017 Trip spans 5 days
Frontier
Frontier
SEA
ORD
8h 53m
1 stop
ORD
SEA
7h 11m
1 stop
Depart: Thu Oct 12 2017 Return: Tue Oct 17 2017 Trip spans 6 days
Delta
Delta
SEA
ORD
4h 05m
nonstop
ORD
SEA
4h 35m
nonstop
Depart: Mon Aug 21 2017 Return: Sun Sep 3 2017 Trip spans 14 days
Southwest
Southwest
SEA
MDW
4h 00m
nonstop
MDW
SEA
4h 30m
nonstop
Depart: Mon Nov 20 2017 Return: Sun Nov 26 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
SEA
ORD
3h 45m
nonstop
ORD
SEA
4h 30m
nonstop
Depart: Tue Aug 1 2017 Return: Sun Aug 6 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
ORD
3h 47m
nonstop
ORD
SEA
4h 39m
nonstop
Depart: Wed Sep 27 2017 Return: Sat Sep 30 2017 Trip spans 4 days
Frontier
Frontier
SEA
ORD
8h 55m
1 stop
ORD
SEA
6h 47m
1 stop
Depart: Wed Aug 2 2017 Return: Fri Aug 4 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
ORD
4h 04m
nonstop
ORD
SEA
4h 26m
nonstop
Depart: Tue Oct 3 2017 Return: Sat Oct 7 2017 Trip spans 5 days
Frontier
Frontier
SEA
ORD
8h 55m
1 stop
ORD
SEA
6h 47m
1 stop
Depart: Thu Aug 24 2017 Return: Sun Aug 27 2017 Trip spans 4 days
United
United
SEA
ORD
3h 55m
nonstop
ORD
SEA
4h 30m
nonstop
Depart: Wed Nov 1 2017 Return: Sat Nov 4 2017 Trip spans 4 days
Delta
Delta
SEA
ORD
4h 05m
nonstop
ORD
SEA
4h 35m
nonstop
Depart: Mon Aug 14 2017 Return: Thu Aug 17 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
ORD
9h 22m
1 stop
ORD
SEA
10h 30m
1 stop
Depart: Thu Nov 30 2017 Return: Mon Dec 4 2017 Trip spans 5 days
Delta
Delta
SEA
ORD
4h 05m
nonstop
ORD
SEA
4h 35m
nonstop
Depart: Sat Sep 9 2017 Return: Wed Sep 13 2017 Trip spans 5 days
Frontier
Frontier
SEA
ORD
8h 55m
1 stop
ORD
SEA
6h 47m
1 stop
Depart: Sun Dec 3 2017 Return: Fri Dec 8 2017 Trip spans 6 days
Delta
Delta
SEA
ORD
4h 05m
nonstop
ORD
SEA
4h 35m
nonstop
Depart: Thu Aug 10 2017 Return: Sun Aug 13 2017 Trip spans 4 days
United
United
SEA
ORD
3h 50m
nonstop
ORD
SEA
4h 29m
nonstop
Depart: Wed Jul 12 2017 Return: Sat Jul 15 2017 Trip spans 4 days
Frontier
Frontier
SEA
ORD
7h 29m
1 stop
ORD
SEA
7h 16m
1 stop
Depart: Wed Nov 8 2017 Return: Sun Nov 12 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
ORD
3h 54m
nonstop
ORD
SEA
4h 34m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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Airports
Origin

Seattle
$265
Destination

Chicago
only $265
only $463
Airlines Airline reviews

342 travelers who booked a flight from Seattle to Chicago rated their chosen airlines with an average of 7.2.

Overall
7.4
Boarding
7.5
Crew
8.0
Comfort
6.9
Food
6.2
Entertainment
6.1