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How far is Helena, MT, from Baltimore, MD?

The distance between Baltimore (Baltimore–Washington International Airport) and Helena (Helena Regional Airport) is 1847 miles / 2973 kilometers / 1605 nautical miles.

The driving distance from Baltimore (BWI) to Helena (HLN) is 2168 miles / 3489 kilometers, and travel time by car is about 39 hours 13 minutes.

Baltimore–Washington International Airport – Helena Regional Airport

Distance arrow
1847
Miles
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2973
Kilometers
Distance arrow
1605
Nautical miles

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Distance from Baltimore to Helena

There are several ways to calculate the distance from Baltimore to Helena. Here are two standard methods:

Vincenty's formula (applied above)
  • 1847.175 miles
  • 2972.740 kilometers
  • 1605.151 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
  • 1842.770 miles
  • 2965.651 kilometers
  • 1601.323 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 Helena?

The estimated flight time from Baltimore–Washington International Airport to Helena Regional Airport is 3 hours and 59 minutes.

Flight carbon footprint between Baltimore–Washington International Airport (BWI) and Helena Regional Airport (HLN)

On average, flying from Baltimore to Helena generates about 204 kg of CO2 per passenger, and 204 kilograms equals 449 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 Helena

See the map of the shortest flight path between Baltimore–Washington International Airport (BWI) and Helena Regional Airport (HLN).

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 Helena Regional Airport
City: Helena, MT
Country: United States Flag of United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W