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STL (St. Louis) to SEA (Seattle) Flights $294.0

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Cheap STL to SEA Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Seattle (STL to SEA)

Question : If you’re booking STL to SEA, how many different options of departure times do you have?
Answer : The number of flight times varies by day, but on average, STL to SEA sees three different options. That is lower than the national average of five.

Question : How often are flights late from Lambert-St. Louis International Airport (STL) to Seattle-Tacoma International Airport (SEA)?
Answer : Passengers are currently getting to their destination on schedule 76% of the time, which ranks in the top half of the world. When there is a delay, it averages less than half an hour.

Question : What is the cheapest day to fly in the next four weeks?
Answer : As of Jul 17th, the cheapest day to fly from Saint Louis to Seattle is Aug 9th. Tickets are currently being sold for $274, which is 37% below the average price for this route.

Question : How long do most people visit Seattle?
Answer : Of course you're not most people, but if you were, you'd stay roughly one week.

Question : From Saint Louis to Seattle, which day of the week is going to have the most flight times?
Answer : The day with the most departure times for this route is Saturday with three options. Wednesday currently offers the least amount of flight times with only two options.

Question : Is there a preferred airline for getting to Seattle-Tacoma International Airport (SEA) on time?
Answer : NetJets Aviation will have you to SEA on time 100% of the time. Don't spend more time waiting in an airport than you have to and stick with NetJets Aviation on this route. Perfection is hard to come by, so hopefully it continues.

Question : Over the coming months, which airline is getting their passengers to Seattle-Tacoma International Airport (SEA) round-trip the cheapest?
Answer : Frontier Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $218, while prices for other flights are as high as $1,179.