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Cheap flights from St Louis to Seattle (STL - SEA)

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Cheap flights from St Louis to Seattle in January 2020

The best prices found for STL to SEA flights for January
29 Jan - 31 Jan
$259pp
STL
Lambert-St Louis
Frontier
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
STL
Lambert-St Louis
26 Jan - 31 Jan
$309pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
STL
Lambert-St Louis
31 Jan - 2 Feb
$337pp
STL
Lambert-St Louis
United Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
 
1 STOP
STL
Lambert-St Louis

St Louis to Seattle 2020 flight deals

Cheap flights to Seattle from St Louis found for this year
2 May - 9 May
$207pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
STL
Lambert-St Louis
25 May - 3 Jun
$215pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
STL
Lambert-St Louis
17 Mar - 24 Mar
$217pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
STL
Lambert-St Louis

Non-stop flights to Seattle from St Louis

Save time with St Louis to Seattle direct flight deals
11 Feb - 25 Feb
$209pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
STL
Lambert-St Louis
17 Mar - 24 Mar
$217pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
STL
Lambert-St Louis
14 Feb - 19 Feb
$228pp
STL
Lambert-St Louis
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
STL
Lambert-St Louis

Last minute flights from St Louis to Seattle

Late deals on round-trip flights to Seattle from St Louis, departing today and this week
24 Jan - 27 Jan
$293pp
STL
Lambert-St Louis
Major Airline
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Major Airline
Non-Stop
STL
Lambert-St Louis
26 Jan - 31 Jan
$309pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
STL
Lambert-St Louis

Alternative routes for St Louis to Seattle

Destination information for Seattle

Things to know before you go. Useful info for your trip from St Louis to Seattle
Average temperature for January in Seattle
48.2 °F
Avg rainfall for January in Seattle
5.7 ″

Airports servicing St. Louis

Airports servicing Seattle

Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)
Redmond (SEA)

Related info for your journey

Useful info, stats and facts about St Louis to Seattle flights.

Flight FAQs

From St Louis to Seattle

What days are nonstop flights available from St Louis to Seattle?

You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Saturday.

How popular is this flight route?

This flight path from Lambert-St Louis to Seattle was viewed by 129 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What percent of flights are delayed?

When booking remember that flights St Louis to Seattle are typically delayed by 31min. so prepare as needed.

How many passenger seats are available on a flight on this route?

Commercial airlines for the flight route can seat a total of 268 passengers per day from Lambert-St Louis to Seattle.

What is the cheapest airline for this route?

Currently, Southwest Airlines Co. offers the cheapest flights from St Louis to Seattle. On average 28 flights can be found for this airline route daily.

How long does the flight from St Louis to Seattle take?

Travelers can expect a nonstop flight to take approximately 5 hours, flying a distance of about 1,065 miles.

How many flights depart from St Louis to Seattle on average per day?

11 flight departures from Lambert-St Louis to Seattle per day on average.
Afternoon (Noon - 6pm) - 18% of flight departures
Evening (6pm - Midnight) - 82% of flight departures

Is St Louis weather warmer or cooler than Seattle?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in Seattle is typically colder than in St Louis. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.