Find Cheap Flights from Chicago to Seattle

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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Book cheap flights from Chicago to Seattle

(Round-trip)
Depart: Sat Jul 22 2017 Return: Sat Jul 29 2017 Trip spans 8 days
United
United
ORD
SEA
4h 32m
nonstop
SEA
ORD
3h 57m
nonstop
Depart: Mon Aug 14 2017 Return: Fri Aug 18 2017 Trip spans 5 days
Major Airline
Major Airline
ORD
SEA
4h 27m
nonstop
SEA
ORD
3h 47m
nonstop
Depart: Wed Aug 16 2017 Return: Wed Aug 23 2017 Trip spans 8 days
Delta
Delta
ORD
SEA
4h 35m
nonstop
SEA
ORD
4h 05m
nonstop
Depart: Tue Aug 8 2017 Return: Tue Aug 15 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
ORD
SEA
8h 07m
1 stop
SEA
ORD
11h 45m
1 stop
Depart: Mon Oct 16 2017 Return: Thu Oct 19 2017 Trip spans 4 days
Southwest
Southwest
MDW
SEA
4h 35m
nonstop
SEA
MDW
4h 05m
nonstop
Depart: Sat Jul 8 2017 Return: Sat Jul 15 2017 Trip spans 8 days
United
United
ORD
SEA
4h 32m
nonstop
SEA
ORD
7h 43m
1 stop
Depart: Tue Jun 20 2017 Return: Tue Jun 27 2017 Trip spans 8 days
United
United
ORD
SEA
7h 37m
1 stop
SEA
ORD
7h 48m
1 stop
Depart: Tue Jun 20 2017 Return: Mon Jun 26 2017 Trip spans 7 days
Delta
Delta
ORD
SEA
4h 38m
nonstop
SEA
ORD
3h 57m
nonstop
Depart: Thu Oct 5 2017 Return: Sat Oct 7 2017 Trip spans 3 days
Major Airline
Major Airline
ORD
SEA
4h 50m
nonstop
SEA
ORD
3h 56m
nonstop
Depart: Fri Aug 25 2017 Return: Tue Aug 29 2017 Trip spans 5 days
Delta
Delta
ORD
SEA
4h 35m
nonstop
SEA
ORD
4h 05m
nonstop
Depart: Fri Sep 1 2017 Return: Fri Sep 8 2017 Trip spans 8 days
Delta
Delta
ORD
SEA
4h 35m
nonstop
SEA
ORD
4h 05m
nonstop
Depart: Thu Jun 15 2017 Return: Sat Jul 15 2017 Trip spans 31 days
Major Airline
Major Airline
ORD
SEA
11h 49m
nonstop
SEA
ORD
13h 15m
nonstop
Depart: Thu Sep 28 2017 Return: Tue Oct 3 2017 Trip spans 6 days
Delta
Delta
ORD
SEA
4h 35m
nonstop
SEA
ORD
4h 05m
nonstop
Depart: Tue Jun 6 2017 Return: Sat Jun 10 2017 Trip spans 5 days
Major Airline
Major Airline
MDW
SEA
5h 27m
nonstop
SEA
MDW
1h 27m
nonstop
Depart: Fri Oct 27 2017 Return: Mon Oct 30 2017 Trip spans 4 days
Delta
Delta
ORD
SEA
4h 35m
nonstop
SEA
ORD
4h 05m
nonstop
Depart: Fri Jul 28 2017 Return: Thu Aug 3 2017 Trip spans 7 days
United
United
ORD
SEA
4h 27m
nonstop
SEA
ORD
3h 57m
nonstop
Depart: Tue Oct 31 2017 Return: Tue Nov 14 2017 Trip spans 15 days
Delta
Delta
ORD
SEA
4h 35m
nonstop
SEA
ORD
4h 05m
nonstop
Depart: Wed May 31 2017 Return: Mon Jun 5 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
ORD
SEA
11h 49m
1 stop
SEA
ORD
13h 02m
1 stop
Depart: Thu Jun 29 2017 Return: Thu Jul 6 2017 Trip spans 8 days
Major Airline
Major Airline
ORD
SEA
4h 38m
nonstop
SEA
ORD
4h 01m
nonstop
Depart: Thu Nov 23 2017 Return: Wed Nov 29 2017 Trip spans 7 days
Delta
Delta
ORD
SEA
4h 35m
nonstop
SEA
ORD
4h 05m
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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Chicago
only $267
only $373
Destination

Seattle
$267
Airlines Airline reviews

120 travelers who booked a flight from Chicago to Seattle rated their chosen airlines with an average of 7.0.

Overall
7.3
Boarding
7.3
Crew
7.5
Comfort
7.0
Food
6.5
Entertainment
6.5