Best airfares from St Louis to Seattle
Jetradar compares airfares from St Louis to Seattle with hundreds of airlines (including United Airlines, American Airlines, Alaska Airlines) and dozens of online travel agencies in one single place. We provide you with all the options to find the cheapest flights to Seattle, you choose where to book. Also there you can find airlines special offers from St Louis to Seattle. The cheapest round-trip price found within the last week was $217. The cheapest oneway price found within the last week was $143.Cheapest Flights from St Louis, MO to Seattle, WA
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Airline One Way One Way / Round-Trip Round-Trip 
United Airlines $130 $139 
American Airlines $133 $139 
Alaska Airlines $132 $134 
Air Canada $492 Find 
Virgin America $364 $648 -
Airline One Way One Way / Round-Trip Round-Trip 
Spirit Airlines $415 $726 
Westjet Find $624 
Frontier Airlines $99 $213 
Southwest Airlines $145 $291 
Sun Country Airlines $446 $513 -
Airline One Way One Way / Round-Trip Round-Trip 
Allegiant Air $731 Find 
Fortune $717 $313
Flights from St Louis to Seattle
Travelling from St Louis to Seattle advices and facts
- The distance between St Louis and Seattle is 1724 miles (or 2774 kilometers).
- The shortest flight time is 5h 30m
- When you fly from St Louis to Seattle, don't forget about the time difference. The time in Seattle is -2:00 from the St Louis time. The current time in Seattle is 04:44am and 06:44am in St Louis. Check this again shortly before your flight.