Seattle / Tacoma (SEA) to Chicago (ORD) flight deal from $177 USD in economy class

ASAlaska Airlines, Inc.

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

ORD

O'Hare International Airport

Chicago, United States

$291 USD

-39%$177 USD

Verified Dec 1, 2025 at 4:42 AM

December 2025

Today

Mon

Tue

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Sun

1$1,829 2$607 3$487 4$487 5$487 6$487 7$377 8$377 9$377 10$377 11$377 12$377 13$377 14$297 15$297 16$297 17$297 18$297 19$522 20$522 21$482 22$462 23$298 24$237 25$217 26$217 27$237 28$237 29$187 30$187 31$213 1$237 2$217 3$237 4$237

Limited Availability

17% of dates checked are available within 10% of the lowest price

Monday, December 1st, 2025

8 round-trip options

Returning

Sat, Dec 6, 2025•5 Day Trip

$1,996 USD

Google Flights

Returning

Sun, Dec 7, 2025•6 Day Trip

$1,940 USD

Google Flights

Returning

Mon, Dec 8, 2025•7 Day Trip

$2,127 USD

Google Flights

Returning

Tue, Dec 9, 2025•8 Day Trip

$1,887 USD

Google Flights

Returning

Wed, Dec 10, 2025•9 Day Trip

$1,887 USD

Google Flights

Returning

Sat, Dec 13, 2025•12 Day Trip

$1,887 USD

Google Flights

Returning

Sun, Dec 14, 2025•13 Day Trip

$1,829 USD

Google Flights

Returning

Mon, Dec 15, 2025•14 Day Trip

$2,107 USD

Google Flights