Find Deals on Flights from Chicago to Seattle/Tacoma Intl (CHI - SEA)

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 Chicago to Seattle/Tacoma Intl

(Round-trip)
Depart: Mon Aug 15 2016 Return: Mon Sep 19 2016 Trip spans 36 days
Depart: Tue Sep 6 2016 Return: Tue Sep 13 2016 Trip spans 8 days
Depart: Tue Nov 8 2016 Return: Wed Nov 9 2016 Trip spans 2 days
Depart: Tue Aug 23 2016 Return: Tue Aug 30 2016 Trip spans 8 days
Depart: Wed Aug 31 2016 Return: Wed Sep 7 2016 Trip spans 8 days
Depart: Tue Sep 27 2016 Return: Wed Oct 5 2016 Trip spans 9 days
Depart: Sat Nov 12 2016 Return: Tue Nov 15 2016 Trip spans 4 days
Depart: Thu Dec 1 2016 Return: Mon Dec 5 2016 Trip spans 5 days
Depart: Wed Aug 24 2016 Return: Sat Aug 27 2016 Trip spans 4 days
Depart: Wed Sep 14 2016 Return: Wed Sep 28 2016 Trip spans 15 days
Depart: Sat Aug 20 2016 Return: Sat Aug 27 2016 Trip spans 8 days
Depart: Sat Oct 8 2016 Return: Tue Oct 11 2016 Trip spans 4 days
Depart: Sat Sep 10 2016 Return: Fri Sep 16 2016 Trip spans 7 days
Depart: Sat Oct 8 2016 Return: Wed Oct 12 2016 Trip spans 5 days
Depart: Sat Oct 1 2016 Return: Sun Oct 2 2016 Trip spans 2 days
Depart: Sat Aug 20 2016 Return: Sat Aug 27 2016 Trip spans 8 days
Depart: Fri Jul 29 2016 Return: Tue Sep 6 2016 Trip spans 40 days
Depart: Fri Jul 29 2016 Return: Sat Jul 30 2016 Trip spans 2 days
Depart: Thu Nov 10 2016 Return: Mon Nov 14 2016 Trip spans 5 days
Depart: Wed Jul 27 2016 Return: Tue Aug 2 2016 Trip spans 7 days
Direct flights CHI to SEA on Delta
Flight # Depart ORD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9016 8:00 am 10:31 am Jul 31 - Jul 31
9130 8:00 am 10:20 am Aug 28 - Sep 4
9130 8:00 am 10:31 am Aug 23 - Aug 26
9130 8:00 am 10:31 am Aug 14 - Aug 21
9130 8:00 am 10:31 am Aug 22 - Aug 25
9130 8:00 am 10:31 am Aug 7 - Aug 7
9130 8:00 am 10:31 am Aug 1 - Aug 12
9130 8:00 am 10:20 am Aug 29 - Sep 2
9017 2:40 pm 5:08 pm Jul 31 - Jul 31
9131 2:40 pm 5:08 pm Aug 27 - Aug 27
9131 2:40 pm 5:08 pm Aug 1 - Aug 8
9131 2:40 pm 5:00 pm Aug 28 - Sep 9
9131 2:40 pm 5:08 pm Aug 10 - Aug 26
9131 2:40 pm 5:08 pm Aug 9 - Aug 9
* 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

Chicago
only $147
only $289
Destination

Seattle
$147