Non-stop from Chicago to Seattle (& vice versa) for only $133 roundtrip

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Non-stop flights from Chicago to Seattle for only $133 roundtrip with Alaska Airlines.

Also works in reverse.

DEPART:
Chicago, USA

ARRIVE:
Seattle, USA

RETURN:
Chicago, USA

DATES:
Availability from February to March 2026

Example dates:

Chicago – Seattle
12th-19th Feb
16th-23rd Feb
17th-24th Feb
19th-26th Feb
23rd Feb – 2nd Mar
26th Feb – 5th Mar
2nd-9th Mar
3rd-10th Mar
9th-16th Mar
10th-17th Mar
12th-19th Mar
16th-23rd Mar

Seattle – Chicago
12th-19th Feb
17th-24th Feb
19th-26th Feb
23rd Feb – 2nd Mar
26th Feb – 5th Mar
5th-12th Mar
9th-16th Mar
10th-17th Mar

and more…

STOPS:

AIRLINES:
Alaska Airlines