Photo by Harish Rajagopal
Popular airlines from St. Louis to Blake Island
Alaska Airlines
United
American Airlines
Delta
Southwest Airlines
Frontier Airlines
Sun Country Airlines
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Find the cheapest month to fly from St. Louis (STL) to Seattle (SEA)
September is typically the cheapest month to fly
From $138 - $219 per traveler.
Graph displaying average flight prices per month
Alternative airports
Prices were available within the past 7 days. Prices and availability are subject to change.
Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Flights from $294
SEA
Seattle - Tacoma Intl.
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