starting at $257
starting at $561
starting at $175
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Saint Louis to Seattle. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from Saint Louis to Seattle, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The route Saint Louis — Seattle is served by several airlines: Air Arabia Abu Dhabi, Southwest Airlines, and Frontier Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $175 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
starting at $257
starting at $561
starting at $175
Saint Louis — Seattle
05/28/2026
Departure
Direct flight
3L7628
starting at $257
Saint Louis — Seattle
07/02/2026
Departure
Direct flight
WN3981
starting at $561
pages.route.route-direct-flight-schedule.noData
The cheapest one-way flight from Saint Louis to Seattle departs on 07/02/2026, is operated by Frontier Airlines and costs $175
There is no information about the cheapest roundtrip flight from Saint Louis to Seattle
Fastest flight from Saint Louis to Seattle takes 15h 58m
There are direct flights on this route 1 day a week: Th
The distance between Saint Louis and Seattle is 2768km (1716 miles). The time difference between Saint Louis and Seattle is 2h
The cheapest flight ticket from Saint Louis to Seattle according to data for the last 48 hours costs $175
Often the best time to buy tickets from Saint Louis to Seattle is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Saint Louis to Seattle can be found flying in these months: July.
The fastest flights from Saint Louis to Seattle start from 15 hours 58 minutes in the air.
The following airlines operate direct flights on the route Saint Louis — Seattle: Air Arabia Abu Dhabi, Southwest Airlines
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Saint Louis to Seattle
We couldn't find any special offers for flights from Saint Louis to Seattle