Air Miles Calculator logo

How far is St Louis, MO, from Baltimore, MD?

The distance between Baltimore (Baltimore–Washington International Airport) and St Louis (St. Louis Lambert International Airport) is 738 miles / 1187 kilometers / 641 nautical miles.

The driving distance from Baltimore (BWI) to St Louis (STL) is 824 miles / 1326 kilometers, and travel time by car is about 15 hours 36 minutes.

Baltimore–Washington International Airport – St. Louis Lambert International Airport

Distance arrow
738
Miles
Distance arrow
1187
Kilometers
Distance arrow
641
Nautical miles

Search flights

Distance from Baltimore to St Louis

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

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).

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

The estimated flight time from Baltimore–Washington International Airport to St. Louis Lambert International Airport is 1 hour and 53 minutes.

Flight carbon footprint between Baltimore–Washington International Airport (BWI) and St. Louis Lambert International Airport (STL)

On average, flying from Baltimore to St Louis generates about 129 kg of CO2 per passenger, and 129 kilograms equals 284 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Baltimore–Washington International Airport (BWI) and St. Louis Lambert International Airport (STL).

Airport information

Origin 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
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 Baltimore (BWI) to St Louis (STL)

AirTran Airways
Southwest Airlines