Find Cheap Flights from Seattle to Chicago O'Hare International

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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

Book cheap flights from Seattle to Chicago O'Hare International

(Round-trip)
Depart: Sun Jun 25 2017 Return: Fri Aug 18 2017 Trip spans 55 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ORD
8:42a
8h 42m
1 stop
ORD
12:00a
SEA
10:53a
10h 53m
1 stop
Depart: Sat Jun 24 2017 Return: Wed Jul 12 2017 Trip spans 19 days
Major Airline
Major Airline
SEA
12:00a
ORD
8:40a
8h 40m
1 stop
ORD
12:00a
SEA
10:14a
10h 14m
1 stop
Depart: Sat Jul 1 2017 Return: Wed Jul 5 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
SEA
12:00a
ORD
11:45a
11h 45m
1 stop
ORD
12:00a
SEA
11:49a
11h 49m
1 stop
Depart: Sat Jun 24 2017 Return: Mon Jun 26 2017 Trip spans 3 days
Frontier
Frontier
SEA
12:00a
ORD
7:21a
7h 21m
1 stop
ORD
12:00a
SEA
7:07a
7h 07m
1 stop
Depart: Thu Jun 29 2017 Return: Sun Jul 30 2017 Trip spans 32 days
United
United
SEA
12:00a
ORD
3:45a
3h 45m
nonstop
ORD
12:00a
SEA
4:28a
4h 28m
nonstop
Depart: Sat Jun 24 2017 Return: Sat Jul 1 2017 Trip spans 8 days
Delta
Delta
SEA
12:00a
ORD
4:00a
4h 00m
nonstop
ORD
12:00a
SEA
4:32a
4h 32m
nonstop
Depart: Mon Jun 26 2017 Return: Fri Jul 7 2017 Trip spans 12 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ORD
7:21a
7h 21m
1 stop
ORD
12:00a
SEA
11:49a
11h 49m
1 stop
Depart: Tue Jun 27 2017 Return: Thu Jul 6 2017 Trip spans 10 days
Spirit Airlines
Spirit Airlines
SEA
12:00a
ORD
10:30p
22h 30m
1 stop
ORD
12:00a
SEA
5:01a
29h 01m
1 stop
Depart: Tue Jun 27 2017 Return: Sun Jul 2 2017 Trip spans 6 days
Virgin America
Virgin America
SEA
12:00a
ORD
7:31a
7h 31m
1 stop
ORD
12:00a
SEA
10:14a
10h 14m
1 stop
Depart: Mon Jun 26 2017 Return: Wed Jun 28 2017 Trip spans 3 days
Frontier
Frontier
SEA
12:00a
ORD
7:21a
7h 21m
1 stop
ORD
12:00a
SEA
7:07a
7h 07m
1 stop
Depart: Wed Jun 28 2017 Return: Fri Jul 7 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ORD
7:21a
7h 21m
1 stop
ORD
12:00a
SEA
11:49a
11h 49m
1 stop
Depart: Sun Jun 25 2017 Return: Tue Jun 27 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
12:00a
ORD
1:56p
13h 56m
1 stop
ORD
12:00a
SEA
6:30a
6h 30m
1 stop
Depart: Thu Jun 29 2017 Return: Fri Jul 7 2017 Trip spans 9 days
Spirit Airlines
Spirit Airlines
SEA
12:00a
ORD
1:15p
13h 15m
1 stop
ORD
12:00a
SEA
11:49a
11h 49m
1 stop
Depart: Wed Jun 28 2017 Return: Mon Jul 3 2017 Trip spans 6 days
Frontier
Frontier
SEA
12:00a
ORD
7:21a
7h 21m
1 stop
ORD
12:00a
SEA
7:07a
7h 07m
1 stop
Depart: Wed Jun 28 2017 Return: Tue Jul 4 2017 Trip spans 7 days
Major Airline
Major Airline
SEA
12:00a
ORD
7:31a
7h 31m
1 stop
ORD
12:00a
SEA
7:56p
19h 56m
1 stop
Depart: Mon Jun 26 2017 Return: Thu Jul 6 2017 Trip spans 11 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ORD
7:21a
7h 21m
1 stop
ORD
12:00a
SEA
7:40a
7h 40m
1 stop
Depart: Sat Jul 1 2017 Return: Tue Jul 4 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
SEA
12:00a
ORD
11:45a
11h 45m
1 stop
ORD
12:00a
SEA
11:49a
11h 49m
1 stop
Depart: Fri Jun 23 2017 Return: Sat Jun 24 2017 Trip spans 2 days
Frontier
Frontier
SEA
12:00a
ORD
9:44a
9h 44m
1 stop
ORD
12:00a
SEA
7:07a
7h 07m
1 stop
Depart: Sun Jun 25 2017 Return: Mon Jun 26 2017 Trip spans 2 days
United
United
SEA
12:00a
ORD
7:26a
7h 26m
1 stop
ORD
12:00a
SEA
4:38a
4h 38m
nonstop
Depart: Thu Jun 29 2017 Return: Sun Jul 2 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
12:00a
ORD
2:29a
26h 29m
1 stop
ORD
12:00a
SEA
10:30a
10h 30m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

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.

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Seattle
$374
Destination

Chicago
$374
Airlines Airline reviews

173 travelers who booked a flight from Seattle to Chicago rated their chosen airlines with an average of 5.8.

Overall
6.0
Boarding
6.3
Crew
7.0
Comfort
5.4
Food
4.8
Entertainment
4.9