Nonstop flight route between Thompson, Manitoba, Canada and Helena, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from YTH to HLN:
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- About this route
- YTH Airport Information
- HLN Airport Information
- Facts about YTH
- Facts about HLN
- Map of Nearest Airports to YTH
- List of Nearest Airports to YTH
- Map of Furthest Airports from YTH
- List of Furthest Airports from YTH
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
About this route:
A direct, nonstop flight between Thompson Municipal Airport (YTH), Thompson, Manitoba, Canada and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 879 miles (or 1,414 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Thompson Municipal Airport and Helena Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | YTH / CYTH |
Airport Name: | Thompson Municipal Airport |
Location: | Thompson, Manitoba, Canada |
GPS Coordinates: | 55°48'16"N by 97°51'44"W |
Area Served: | Thompson, Manitoba |
Operator/Owner: | Thompson Regional Airport Authority |
Airport Type: | Public |
Elevation: | 735 feet (224 meters) |
# of Runways: | 2 |
View all routes: | Routes from YTH |
More Information: | YTH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | HLN / KHLN |
Airport Names: |
|
Location: | Helena, Montana, United States |
GPS Coordinates: | 46°36'24"N by 111°58'58"W |
Area Served: | Helena, Montana |
Operator/Owner: | Helena Regional Airport Authority |
Airport Type: | Public |
Elevation: | 3877 feet (1,182 meters) |
# of Runways: | 3 |
View all routes: | Routes from HLN |
More Information: | HLN Maps & Info |
Facts about Thompson Municipal Airport (YTH):
- The airport is served by Calm Air and Perimeter Aviation with flights to Winnipeg.
- Thompson Municipal Airport (YTH) has 2 runways.
- The closest airport to Thompson Municipal Airport (YTH) is Thicket Portage Airport (YTD), which is located 34 miles (55 kilometers) S of YTH.
- The furthest airport from Thompson Municipal Airport (YTH) is Margaret River Airport (MGV), which is located 10,263 miles (16,516 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Thompson Municipal Airport's relatively low elevation of 735 feet, planes can take off or land at Thompson Municipal Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
Facts about Helena Regional Airport (HLN):
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
- Helena Regional Airport (HLN) has 3 runways.
- The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".