Air Miles Calculator

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

Distance from Seattle to St Louis (Boeing Field – St. Louis Lambert International Airport) is 1710 miles / 2751 kilometers / 1486 nautical miles.

How far is St Louis from Seattle?

There are several ways to calculate distances between Seattle and St Louis. Here are two common methods:

Vincenty's formula (applied above)
  • 1709.613 miles
  • 2751.355 kilometers
  • 1485.613 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
  • 1705.807 miles
  • 2745.230 kilometers
  • 1482.306 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 Boeing Field (BFI) to St. Louis Lambert International Airport (STL) is 3 hours 44 minutes.

Time difference and current local times

The time difference between Seattle and St Louis is 2 hours. St Louis is 2 hours ahead of Seattle.

Time Difference

Seattle
St Louis

Seattle, WA

 PDT

St Louis, MO

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 188 kg (414 pounds).

Airport information


A Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B 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

Seattle to St Louis flight path

Shortest flight path between Boeing Field (BFI) and St. Louis Lambert International Airport (STL).

Frequent Flyer Miles Calculator

Seattle (BFI) → St Louis (STL).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1710
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1710

Round trip?