Air Miles Calculator

Distance between St Louis, MO (STL) and Baltimore, MD (BWI)

Distance from St Louis to Baltimore (St. Louis Lambert International Airport – Baltimore–Washington International Airport) is 738 miles / 1187 kilometers / 641 nautical miles.

How far is Baltimore from St Louis?

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

Vincenty's formula (applied above)
  • 737.802 miles
  • 1187.378 kilometers
  • 641.133 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
  • 736.007 miles
  • 1184.488 kilometers
  • 639.572 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 (STL) to Baltimore–Washington International Airport (BWI) is 1 hour 53 minutes.

Time difference and current local times

The time difference between St Louis and Baltimore is 1 hour. Baltimore is 1 hour ahead of St Louis.

Time Difference

St Louis
Baltimore

St Louis, MO

 CST

Baltimore, MD

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 129 kg (284 pounds).

Airport information


A 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

B Baltimore–Washington International Airport
City: Baltimore, MD
Country: United States Flag of United States
IATA Code: BWI
ICAO Code: KBWI
Coordinates: 39°10′31″N, 76°40′5″W

Map

St Louis to Baltimore flight map.

Frequent Flyer Miles Calculator

St Louis (STL) → Baltimore (BWI).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
738
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
738

Round trip?