St LouisSeattle

Flights from St Louis to Seattle

Nonstop flights from St Louis (STL) to Seattle (SEA) take about 3h 56m (2,744 km). Alaska Airlines flies it. Lowest fare seen: $136 one-way, nonstop (22 Oct 2026).

All flights to Seattle →

Photo of Seattle: Stephen Leonardi on Pexels.

When you land in Seattle

The airport transfer and the few things worth sorting before you fly.

Alaska Airlines plane soaring through a bright sky with fluffy clouds in Seattle. — arriving in Seattle

Airport transfer

SEA → Seattle, booked before you fly

A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.

See transfer prices

Before you flyAirport lounges at St. Louis →1 lounge at St. Louis Airport Trains, buses and taxi faresSEA to Seattle: getting into town →Early arrival or late flightLuggage storage in Seattle →10 drop-off points, from $4.90

Things to book in Seattle

All 22 things to do in Seattle →

from €3.57

Seattle Center Monorail 4.5 · 1,891 Tiqets reviews

from €44.59

Seattle Aquarium 4.3 · 353 Tiqets reviews

from €20.49

Woodland Park Zoo 4.6 · 143 Tiqets reviews

from €43.10

Seattle Sightseeing Cruises 4.6 · 61 Tiqets reviews

Find hotels in Seattle

Hotels, hostels & more · Expedia

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Airlines flying St Louis to Seattle

Carriers on STL–SEA according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.

✈ Alaska Airlinesnonstop fare seen

More for this trip

Frequently asked questions — St Louis to Seattle flights

How long is the flight from St Louis to Seattle?

A nonstop flight from St Louis (STL) to Seattle (SEA) takes about 3h 56m, covering 2,744 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.

How far is St Louis from Seattle by air?

The great-circle distance between St. Louis Lambert International Airport and Seattle–Tacoma International Airport is 2,744 km (1,705 miles), a medium-haul route.

Which airlines fly from St Louis to Seattle?

Airlines with flights or nonstop fares on the STL–SEA route include Alaska Airlines. This is not a complete list — schedules change by season, so check the current options before booking.

How much does a flight from St Louis to Seattle cost?

The lowest one-way fare seen recently on STL–SEA was $136 USD with Alaska Airlines (nonstop), departing 19 Nov 2026, found in fare searches as of 22 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.

Is it cheaper to fly nonstop or with a stop from St Louis to Seattle?

In the fares we saw (22 Oct 2026), connecting was cheaper: from $122 with one stop against $136 nonstop, a saving of $14. Nonstop saves the connection time.

Do I need a visa to travel from St Louis to Seattle?

It depends on your passport. Some nationalities can enter Seattle visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.

Sources: fares from Travelpayouts flight-search data, seen 22 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

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