SEA to STL (Seattle to St. Louis) Flights

Last Minute Flights from SEA to STL

Best airfare and ticket deals for SEA to STL flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
SEASt. LouisJune 1 to June 11$250
*Prices include taxes and fees

Cheapest SEA to STL Flights

Best airfare and ticket deals for SEA to STL flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
SEASt. LouisAugust 27 to September 3$138
SEASt. LouisJune 25 to July 24$180
SEASt. LouisJune 5 to June 11$235
PAESt. LouisOctober 1 to October 3$572
*Prices include taxes and fees
SEA to STL Flight Details
Origin airport
Seattle - Tacoma Intl.
Origin airport IATA code
SEA
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Distance
1705 mi

Frequently asked questions

Which airlines with flights from Seattle - Tacoma International Airport to STL allow free cancellation due to COVID-19?
It’s easy to find airfares with cancellation flexibility due to COVID-19. After you’ve entered your travel dates, simply click on the “No change fee” box. You’ll find it right under the “Flexible change policies” heading on the left. As always, be sure to read through the airline’s terms and conditions thoroughly before locking in your seats from Seattle - Tacoma International Airport to Lambert-St. Louis International Airport.
What airlines fly direct from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to STL?
Fly with Southwest Airlines (WN). It operates 30 flights per month that jet straight from SEA to STL. With 30 nonstop monthly flights of its own on this route, Alaska Airlines (AS) is another carrier to bear in mind.
How many flights are there from SEA to STL?
About 111 flights are available per day between Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) and St. Louis, MO Airport (STL-Lambert-St. Louis Intl.). Buckle up because your plane to St. Louis is ready to go.