Cheap flights Seattle — Saint Louis (SEA — STL)

Good to know - Cheap tickets Seattle — Saint Louis

Cheapest flight found $194
Minimal flight time 3h 35m
Flight distance 2769 km
Most popular airline Alaska Horizon

Airfare Seattle – Saint Louis by month

Here you can find out in what months how much a ticket Seattle – Saint Louis costs to buy cheap plane tickets.

Month One-way Round-trip
September 2025
August 2025
July 2025
May 2025
April 2025
October 2024

Remember that the optimal time for booking air tickets is 59 days before the departure date, this is the average time at which air tickets were sold at the lowest prices.

Schedule of direct flights Seattle — Saint Louis

Departure Arrival Flight days Flight Airlines Flight time Airports
08:26 14:25 mon, tue, thu, fri, sat, sun AS503 Alaska Horizon 3h 59m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
08:32 14:26 daily AS388 Alaska Horizon 3h 54m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
08:36 14:39 mon, tue, wed, fri, sat, sun AS388 Alaska Horizon 4h 3m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
08:38 14:39 wed, thu, sun AS388 Alaska Horizon 4h 1m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
09:00 15:01 wed, sat, sun AS388 Alaska Horizon 4h 1m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
11:15 17:10 sat WN3433 Southwest Airlines 3h 55m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
11:30 17:05 sat DL8840 Delta Air Lines (Team USA Livery) 3h 35m Seattle-Tacoma International Airport — St. Louis Downtown Airport Select dates
11:31 17:34 fri AS291 Alaska Horizon 4h 3m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
11:35 17:35 sun WN3318 Southwest Airlines 4h 0m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
12:05 18:05 mon, thu, fri WN1572 Southwest Airlines 4h 0m Seattle-Tacoma International Airport — Lambert-St. Louis International Airport Select dates
All routes

Dynamics airfare Seattle — Saint Louis by month for the last year

according to LowCost.Club for the last year

The airfare depends on the departure date. Our chart shows the low season prices on route Seattle — Saint Louis

The graph shows that booking flights Seattle — Saint Louis is best planned for May and flights Seattle — Saint Louis — Seattle in the month of October.

Flights Seattle — Saint Louis

The selection of cheap flights Seattle — Saint Louis

Here you can find and purchase the cheapest flights Seattle — Saint Louis from $194 and Seattle — Saint Louis — Seattle from $188.

The price of the flight Seattle — Saint Louis (United States) — Seattle from $188 (round-trip).

The average price of the flight Seattle — Saint Louis (United States) — Seattle $312 (round-trip).

Low cost flights Seattle — Saint Louis (SEA — STL)

The distance between Seattle and Saint Louis 1721 miles (or 2769 kilometres).

The time difference between Seattle and Saint Louis is 2 h.

Minimal flight time from Seattle to Saint Louis 3h 35m.

LowCostClub always do a comparison of airfares Seattle — Saint Louis with several airlines (include Alaska Horizon, Southwest Airlines, Delta Air Lines (Team USA Livery)). They will always give you all available options so you can find the cheapest flight to Saint Louis. In addition, you can choose the platform where you want to place your orders. There are also special offers for air tickets Seattle — Saint Louis. Last week, for instance, the cheapest round-trip prices stood at $188 while the cheapest one-way price that was available within the last week cost $194

Routes from nearby cities to Saint Louis

A flight from a neighbouring city can help you save money on plane tickets.

Most often, they fly to Saint Louis from Pasco, this is the closest city with an airport from Seattle. The cheapest ticket can be bought for a flight departing from Portland from $109.

Popular International routes from Seattle

Popular routes from Saint Louis

If you are going to fly from Saint Louis, then study the popular flights. The most popular flights from Saint Louis:

Popular domestic routes from Seattle

FAQ about Seattle — Saint Louis

Yes, they do: AS503, AS388, WN3433, DL8840, AS291, WN3318, WN1572, AS472

Yes, you can fly from Seattle to Saint Louis. Seattle has 3 airports (Boeing Field International Airport, Kenmore Air Harbor SPB, Seattle-Tacoma International Airport) for flights. Alaska Horizon, Southwest Airlines, Delta Air Lines (Team USA Livery) depart from Seattle on mon, tue, wed, thu, fri, sat, sun. There are non-direct flights through Air Canada, AlphaSky, Amazon Air, American Airlines, Ameriflight, Breeze Airways, DHL, FedEx, Frontier (Choo the Pika Livery), Japan Airlines, Jet Linx Aviation, Lufthansa, NetJets, Phoenix Air, SkyWest Airlines, Southern Airways Express, Spirit Airlines, Sun Country Airlines, United Airlines, UPS.

A direct flight lasts an average of 3h 35m, during which time the aircraft covers a distance of 2769 km.

The price of flights Seattle — Saint Louis starts from $194.

Planes fly Seattle — Saint Louis 7 times a week on the following days: mon, tue, wed, thu, fri, sat, sun

In Seattle — Boeing Field International Airport, Kenmore Air Harbor SPB, Seattle-Tacoma International Airport. In Saint Louis — St. Louis Downtown Airport, Spirit of St. Louis Airport, Lambert-St. Louis International Airport.

The following flights fly between Seattle and Saint Louis: AS503, AS388, AS388, AS388, AS388, WN3433, DL8840, AS291, WN3318, WN1572, AS472, AS472

High season is considered to be July and the cheapest month is May. Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Seattle — Saint Louis flight deals.

The following airlines have direct flights Seattle — Saint Louis: Alaska Horizon, Southwest Airlines, Delta Air Lines (Team USA Livery).

All the following airlines flights Seattle — Saint Louis: Air Canada, Alaska Horizon, AlphaSky, Amazon Air, American Airlines, Ameriflight, Breeze Airways, Delta Air Lines (Team USA Livery), DHL, FedEx, Frontier (Choo the Pika Livery), Japan Airlines, Jet Linx Aviation, Lufthansa, NetJets, Phoenix Air, SkyWest Airlines, Southern Airways Express, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United Airlines, UPS.

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