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How far is St Louis, MO, from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and St Louis (St. Louis Lambert International Airport) is 1709 miles / 2750 kilometers / 1485 nautical miles.

The driving distance from Seattle (SEA) to St Louis (STL) is 2105 miles / 3388 kilometers, and travel time by car is about 36 hours 34 minutes.

Seattle–Tacoma International Airport – St. Louis Lambert International Airport

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1709
Miles
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2750
Kilometers
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1485
Nautical miles

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Distance from Seattle to St Louis

There are several ways to calculate the distance from Seattle to St Louis. Here are two standard 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 planet.

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).

How long does it take to fly from Seattle to St Louis?

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

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and St. Louis Lambert International Airport (STL)

On average, flying from Seattle to St Louis generates about 193 kg of CO2 per passenger, and 193 kilograms equals 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 Seattle to St Louis

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and St. Louis Lambert International Airport (STL).

Airport information

Origin 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
Destination 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

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

Alaska Airlines
American Airlines