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Flight distance & time
Lambert St Louis International Airport → Seattle Tacoma International Airport
STLSEA
- Distance
- 2,744 km · 1,705 mi
- Flight time
- 04h 10m
- CO₂ per passenger
- 246 kg
This Lambert St Louis International Airport → Seattle Tacoma International Airport route is 2,744 km (1,705 mi) end to end. The estimated flight time is 04h 10m, and a passenger's share of CO₂ works out at roughly 246 kg.
See the reverse route: Seattle Tacoma International Airport → Lambert St Louis International Airport
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Your route
- FromSTLLambert St Louis International AirportSt Louis, Missouri
- ToSEASeattle Tacoma International AirportSeattle, Washington
Flight map
Track your lifetime distance flown across every trip.
Route service
Average daily flights~3 flights/day
Airlines on this route
Alaska AirlinesSCJ
Common questions
Lambert St Louis International Airport to Seattle Tacoma International Airport FAQ
How far is Lambert St Louis International Airport from Seattle Tacoma International Airport?
Lambert St Louis International Airport (STL) and Seattle Tacoma International Airport (SEA) are 2,744 km (1,705 mi) apart, measured along the great-circle route.
How long is the flight from Lambert St Louis International Airport to Seattle Tacoma International Airport?
A direct STL–SEA flight covers the distance in about 04h 10m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from Lambert St Louis International Airport to Seattle Tacoma International Airport produce?
A passenger's share of CO₂ on the STL–SEA route is roughly 246 kg.
Which airlines fly from Lambert St Louis International Airport to Seattle Tacoma International Airport?
Alaska Airlines, SCJ operate scheduled service between STL and SEA.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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