Chicago (ORD) to Seattle / Tacoma (SEA) flight deal from $89 USD in economy class – flightdeals.net

Home Premium Fare Deals About Pricing

United Airlines

UAUnited Airlines

One Way•Economy

O'Hare International Airport

Chicago, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$149 USD

-40%$89 USD

Verified Nov 29, 2025 at 12:16 PM

January 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$443 30$299 31$296 1$216 2$235 3$247 4$219 5$149 6$89 7$89 8$89 9$89 10$89 11$89 12$89 13$89 14$89 15$89 16$89 17$89 18$89 19$89 20$89 21$89 22$89 23$89 24$89 25$89 26$89 27$89 28$89 29$89 30$89 31$89 1

Fair Availability

22% of dates checked are available within 10% of the lowest price

Tuesday, January 6th, 2026

Outbound Flights

·

→

·

→

·

→