Seattle / Tacoma (SEA) to St. Louis (STL) flight deal from $79 USD in economy class – flightdeals.net

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American Airlines

AAAmerican Airlines

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Lambert-Saint Louis International Airport

St. Louis, United States

$178 USD

-56%$79 USD

Verified Nov 24, 2025 at 1:56 AM

January 2026

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29$155 30$174 31$128 1$155 2$179 3$229 4$155 5$128 6$79 7$79 8$88 9$88 10$79 11$128 12$88 13$79 14$79 15$105 16$137 17$79 18$105 19$88 20$79 21$79 22$88 23$88 24$79 25$88 26$88 27$79 28$79 29$88 30$88 31$79 1

Limited Availability

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

Friday, January 23rd, 2026

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