How far is Thompson from Helena, MT?

The distance between Helena (Helena Regional Airport) and Thompson (Thompson Airport) is 880 miles / 1416 kilometers / 765 nautical miles.

The driving distance from Helena (HLN) to Thompson (YTH) is 1197 miles / 1926 kilometers, and travel time by car is about 24 hours 52 minutes.

Distance from Helena to Thompson

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

Vincenty's formula (applied above)

• 879.885 miles
• 1416.038 kilometers
• 764.599 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

• 878.331 miles
• 1413.537 kilometers
• 763.249 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 Helena to Thompson?

The estimated flight time from Helena Regional Airport to Thompson Airport is 2 hours and 9 minutes.

What is the time difference between Helena and Thompson?

The time difference between Helena and Thompson is 1 hour. Thompson is 1 hour ahead of Helena.

Flight carbon footprint between Helena Regional Airport (HLN) and Thompson Airport (YTH)

On average, flying from Helena to Thompson generates about 142 kg of CO2 per passenger, and 142 kilograms equals 313 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Helena to Thompson

See the map of the shortest flight path between Helena Regional Airport (HLN) and Thompson Airport (YTH).

Airport information

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

Destination	Thompson Airport
City:	Thompson
Country:	Canada
IATA Code:	YTH
ICAO Code:	CYTH
Coordinates:	55°48′3″N, 97°51′51″W