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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Book cheap flights from Chicago to Seattle/Tacoma Intl

(Round-trip)
Depart: Tue May 3 2016 Return: Tue May 17 2016 Trip spans 15 days
Frontier
Frontier
ORD
SEA
4h 40m
nonstop
SEA
ORD
4h 11m
nonstop
Depart: Tue Apr 26 2016 Return: Mon May 2 2016 Trip spans 7 days
Alaska Airlines
Alaska Airlines
ORD
SEA
4h 20m
nonstop
SEA
ORD
3h 52m
nonstop
Depart: Sat Feb 27 2016 Return: Tue Mar 1 2016 Trip spans 4 days
Frontier
Frontier
ORD
SEA
15h 39m
1 stop
SEA
ORD
13h 22m
1 stop
Depart: Sat Mar 5 2016 Return: Sat Mar 12 2016 Trip spans 8 days
Frontier
Frontier
ORD
SEA
15h 33m
1 stop
SEA
ORD
12h 22m
1 stop
Depart: Thu May 26 2016 Return: Tue Jun 7 2016 Trip spans 13 days
Frontier
Frontier
ORD
SEA
4h 40m
nonstop
SEA
ORD
4h 11m
nonstop
Depart: Thu Jul 14 2016 Return: Tue Jul 19 2016 Trip spans 6 days
Frontier
Frontier
ORD
SEA
4h 35m
nonstop
SEA
ORD
3h 55m
nonstop
Depart: Thu Aug 11 2016 Return: Sun Aug 14 2016 Trip spans 4 days
Frontier
Frontier
ORD
SEA
4h 35m
nonstop
SEA
ORD
3h 55m
nonstop
Depart: Sun May 1 2016 Return: Sun May 8 2016 Trip spans 8 days
United
United
ORD
SEA
4h 33m
nonstop
SEA
ORD
3h 44m
nonstop
Depart: Thu Jun 2 2016 Return: Sun Jun 12 2016 Trip spans 11 days
Frontier
Frontier
ORD
SEA
4h 40m
nonstop
SEA
ORD
4h 11m
nonstop
Depart: Thu Jul 21 2016 Return: Sun Jul 24 2016 Trip spans 4 days
Frontier
Frontier
ORD
SEA
4h 35m
nonstop
SEA
ORD
3h 55m
nonstop
Depart: Thu Jul 28 2016 Return: Thu Aug 4 2016 Trip spans 8 days
Frontier
Frontier
ORD
SEA
4h 35m
nonstop
SEA
ORD
3h 55m
nonstop
Depart: Tue Jul 12 2016 Return: Tue Jul 19 2016 Trip spans 8 days
Frontier
Frontier
ORD
SEA
4h 35m
nonstop
SEA
ORD
3h 55m
nonstop
Depart: Wed Mar 2 2016 Return: Sun Apr 24 2016 Trip spans 53 days
United
United
ORD
SEA
4h 38m
nonstop
SEA
ORD
3h 52m
nonstop
Depart: Sun Feb 28 2016 Return: Wed Mar 2 2016 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ORD
SEA
4h 38m
nonstop
SEA
ORD
3h 59m
nonstop
Depart: Thu Jun 16 2016 Return: Tue Jun 28 2016 Trip spans 13 days
Frontier
Frontier
ORD
SEA
4h 40m
nonstop
SEA
ORD
4h 11m
nonstop
Depart: Sat Apr 9 2016 Return: Tue Apr 12 2016 Trip spans 4 days
Frontier
Frontier
ORD
SEA
14h 48m
1 stop
SEA
ORD
13h 17m
1 stop
Depart: Fri Jun 10 2016 Return: Sun Jun 12 2016 Trip spans 3 days
Frontier
Frontier
ORD
SEA
16h 04m
1 stop
SEA
ORD
4h 11m
nonstop
Depart: Fri Feb 26 2016 Return: Sun Feb 28 2016 Trip spans 3 days
American Airlines
American Airlines
ORD
SEA
4h 31m
nonstop
SEA
ORD
3h 55m
nonstop
Depart: Wed Mar 16 2016 Return: Mon Mar 21 2016 Trip spans 6 days
Delta
Delta
MDW
SEA
7h 30m
1 stop
SEA
MDW
18h 58m
1 stop
Depart: Tue May 17 2016 Return: Tue May 31 2016 Trip spans 15 days
Southwest
Southwest
MDW
SEA
4h 25m
nonstop
SEA
MDW
4h 05m
nonstop
Direct flights CHI to SEA on Delta
Flight # Depart ORD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9015 8:00 am 10:40 am Feb 24 - Feb 24
9015 8:00 am 10:40 am Mar 11 - Mar 11
9015 8:00 am 10:40 am Feb 29 - Mar 10
9015 8:00 am 10:30 am Mar 14 - Mar 20
9015 8:00 am 10:40 am Feb 15 - Feb 22
9015 8:00 am 10:40 am Feb 14 - Feb 28
9015 8:05 am 10:35 am Mar 13 - Mar 13
8992 3:25 pm 5:50 pm Mar 13 - Mar 20
8992 3:25 pm 5:50 pm Mar 15 - Mar 23
8992 3:25 pm 5:50 pm Mar 14 - Mar 14
8992 3:30 pm 6:09 pm Mar 8 - Mar 12
8992 3:30 pm 6:09 pm Feb 14 - Feb 20
8992 3:30 pm 6:09 pm Feb 21 - Feb 23
8992 3:30 pm 6:09 pm Feb 22 - Feb 28
8992 3:30 pm 6:09 pm Mar 1 - Mar 6
8992 3:30 pm 6:09 pm Mar 7 - Mar 7
8992 3:30 pm 6:09 pm Mar 9 - Mar 11
8992 3:30 pm 6:09 pm Feb 29 - Feb 29
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

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We’re not the seller
At KAYAK we don’t set 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 don'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

Chicago
only $208
only $348
Destination

Seattle
$208