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

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United Airlines

UAUnited Airlines

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

O'Hare International Airport

Chicago, United States

$143 USD

-38%$89 USD

Verified Nov 29, 2025 at 12:16 PM

January 2026

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29$149 30$99 31$89 1$89 2$149 3$199 4$149 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

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24% of dates checked are available within 10% of the lowest price

Friday, January 23rd, 2026

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