STL to SEA from $84 in economy – flightdeals.net

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Delta Air Lines

DLDelta Air Lines

Southwest Airlines

WNSouthwest Airlines

One Way•Economy

Lambert-Saint Louis International Airport

St. Louis, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$186 USD

-55%$84 USD

Verified about 12 hours ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$240 1$209 2$209 3$209 4$209 5$204 6$209 7$209 8$209 9$209 10$209 11$209 12$204 13$209 14$209 15$209 16$209 17$209 18$209 19$294 20$294 21$209 22$214 23$294 24$209 25$209 26$299 27$299 28$294 29$214 30$209 31$209 1$220 2$299 3$294

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Sunday, December 27th, 2026

Outbound Flights

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