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Distance between St Louis, MO (STL) and Seattle, WA (SEA)

Flight distance from St Louis to Seattle (St. Louis Lambert International Airport – Seattle–Tacoma International Airport) is 1709 miles / 2750 kilometers / 1485 nautical miles. Estimated flight time is 3 hours 44 minutes.

Driving distance from St Louis (STL) to Seattle (SEA) is 2103 miles / 3385 kilometers and travel time by car is about 36 hours 37 minutes.

St Louis – Seattle

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1709
Miles
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2750
Kilometers
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1485
Nautical miles

How far is Seattle from St Louis?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 1709.073 miles
  • 2750.486 kilometers
  • 1485.144 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 1705.259 miles
  • 2744.349 kilometers
  • 1481.830 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

Flight Duration

Estimated flight time from St. Louis Lambert International Airport to Seattle–Tacoma International Airport is 3 hours 44 minutes.

Time difference

The time difference between St Louis and Seattle is 2 hours. Seattle is 2 hours behind St Louis.
St Louis time to Seattle time converter

Carbon dioxide emissions

On average flying from St Louis to Seattle generates about 193 kg of CO2 per passenger, 193 kilograms is equal to 426 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from St Louis to Seattle

Shortest flight path between St. Louis Lambert International Airport (STL) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W
Destination Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W

Airlines flying from St Louis (STL) to Seattle (SEA)

Alaska Airlines
American Airlines