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How far is Helena, MT, from Modesto, CA?

The distance between Modesto (Modesto City–County Airport) and Helena (Helena Regional Airport) is 771 miles / 1241 kilometers / 670 nautical miles.

The driving distance from Modesto (MOD) to Helena (HLN) is 1089 miles / 1753 kilometers, and travel time by car is about 18 hours 46 minutes.

Modesto City–County Airport – Helena Regional Airport

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771
Miles
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1241
Kilometers
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670
Nautical miles

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Distance from Modesto to Helena

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

Vincenty's formula (applied above)
  • 771.391 miles
  • 1241.433 kilometers
  • 670.320 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
  • 771.211 miles
  • 1241.144 kilometers
  • 670.164 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 Modesto to Helena?

The estimated flight time from Modesto City–County Airport to Helena Regional Airport is 1 hour and 57 minutes.

Flight carbon footprint between Modesto City–County Airport (MOD) and Helena Regional Airport (HLN)

On average, flying from Modesto to Helena generates about 132 kg of CO2 per passenger, and 132 kilograms equals 291 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Modesto to Helena

See the map of the shortest flight path between Modesto City–County Airport (MOD) and Helena Regional Airport (HLN).

Airport information

Origin Modesto City–County Airport
City: Modesto, CA
Country: United States Flag of United States
IATA Code: MOD
ICAO Code: KMOD
Coordinates: 37°37′32″N, 120°57′14″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