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

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Southwest Airlines

WNSouthwest Airlines

One Way•Economy

Lambert-Saint Louis International Airport

St. Louis, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$179 USD

-56%$79 USD

Verified Nov 2, 2025 at 4:02 PM

November 2025

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27 28 29 30 31 1 2$290 3$290 4$290 5$290 6$290 7$290 8$290 9$260 10$260 11$260 12$260 13$260 14$260 15$260 16$155 17$155 18$144 19$144 20$155 21$155 22$144 23$89 24$89 25$149 26$79 27$89 28$230 29$351 30$450

Limited Availability

13% of dates checked are available within 10% of the lowest price

Wednesday, November 5th, 2025

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