Find Deals on 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: Wed Apr 26 2017 Return: Wed May 3 2017 Trip spans 8 days
Frontier
Frontier
SEA
ORD
7h 29m
1 stop
ORD
SEA
6h 55m
1 stop
Depart: Tue May 2 2017 Return: Sat May 6 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
ORD
27h 36m
1 stop
ORD
SEA
25h 20m
1 stop
Depart: Tue Mar 21 2017 Return: Wed Mar 29 2017 Trip spans 9 days
Delta
Delta
SEA
MDW
8h 27m
1 stop
MDW
SEA
9h 26m
1 stop
Depart: Tue Apr 11 2017 Return: Sun Apr 16 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
SEA
ORD
3h 52m
nonstop
ORD
SEA
4h 27m
nonstop
Depart: Fri Jul 21 2017 Return: Sat Jul 29 2017 Trip spans 9 days
United
United
SEA
ORD
3h 50m
nonstop
ORD
SEA
4h 28m
nonstop
Depart: Wed May 3 2017 Return: Sat May 6 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
ORD
15h 48m
1 stop
ORD
SEA
12h 23m
1 stop
Depart: Tue Mar 28 2017 Return: Tue Apr 4 2017 Trip spans 8 days
Frontier
Frontier
SEA
ORD
13h 44m
1 stop
ORD
SEA
17h 13m
1 stop
Depart: Sat Mar 11 2017 Return: Tue Mar 14 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
ORD
6h 37m
1 stop
ORD
SEA
10h 51m
1 stop
Depart: Tue Apr 25 2017 Return: Fri Apr 28 2017 Trip spans 4 days
Frontier
Frontier
SEA
ORD
8h 39m
1 stop
ORD
SEA
6h 55m
1 stop
Depart: Tue Mar 14 2017 Return: Wed Mar 29 2017 Trip spans 16 days
Delta
Delta
SEA
MDW
6h 07m
1 stop
MDW
SEA
5h 59m
1 stop
Depart: Mon Jul 3 2017 Return: Wed Jul 12 2017 Trip spans 10 days
Alaska Airlines
Alaska Airlines
SEA
ORD
3h 57m
nonstop
ORD
SEA
4h 26m
nonstop
Depart: Wed Mar 22 2017 Return: Wed Apr 5 2017 Trip spans 15 days
Delta
Delta
SEA
MDW
6h 12m
1 stop
MDW
SEA
8h 53m
1 stop
Depart: Tue Aug 15 2017 Return: Sun Aug 20 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
SEA
ORD
3h 47m
nonstop
ORD
SEA
4h 21m
nonstop
Depart: Wed Mar 29 2017 Return: Tue Apr 4 2017 Trip spans 7 days
Major Airline
Major Airline
SEA
ORD
3h 41m
nonstop
ORD
SEA
4h 33m
nonstop
Depart: Tue Apr 11 2017 Return: Wed Apr 19 2017 Trip spans 9 days
Delta
Delta
SEA
MDW
7h 45m
1 stop
MDW
SEA
9h 00m
1 stop
Depart: Tue May 23 2017 Return: Sat Jun 3 2017 Trip spans 12 days
Major Airline
Major Airline
SEA
ORD
8h 07m
nonstop
ORD
SEA
7h 10m
nonstop
Depart: Wed Apr 19 2017 Return: Sat Apr 22 2017 Trip spans 4 days
Delta
Delta
SEA
MDW
5h 55m
1 stop
MDW
SEA
6h 09m
1 stop
Depart: Tue Jun 6 2017 Return: Sat Jun 10 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
ORD
4h 13m
nonstop
ORD
SEA
4h 35m
nonstop
Depart: Tue May 2 2017 Return: Sat May 6 2017 Trip spans 5 days
Delta
Delta
SEA
MDW
7h 31m
1 stop
MDW
SEA
8h 40m
1 stop
Depart: Thu Jun 8 2017 Return: Sun Jun 11 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
ORD
4h 13m
nonstop
ORD
SEA
4h 33m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

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
$207
Destination

Chicago
only $207
only $314
Airlines Airline reviews

270 travelers who booked a flight from Seattle to Chicago rated their chosen airlines with an average of 6.9.

Overall
7.1
Boarding
7.2
Crew
7.7
Comfort
6.6
Food
5.9
Entertainment
5.7