Nonstop flight route between Great Falls, Montana, United States and St. Marys, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from GTF to STQ:
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- About this route
- GTF Airport Information
- STQ Airport Information
- Facts about GTF
- Facts about STQ
- Map of Nearest Airports to GTF
- List of Nearest Airports to GTF
- Map of Furthest Airports from GTF
- List of Furthest Airports from GTF
- Map of Nearest Airports to STQ
- List of Nearest Airports to STQ
- Map of Furthest Airports from STQ
- List of Furthest Airports from STQ
About this route:
A direct, nonstop flight between Great Falls International Airport (GTF), Great Falls, Montana, United States and St. Marys Municipal Airport (STQ), St. Marys, Pennsylvania, United States would travel a Great Circle distance of 1,661 miles (or 2,673 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 Great Falls International Airport and St. Marys Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GTF / KGTF |
Airport Names: |
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Location: | Great Falls, Montana, United States |
GPS Coordinates: | 47°28'58"N by 111°22'14"W |
Area Served: | Great Falls, Montana |
Operator/Owner: | Great Falls International Airport Authority |
Airport Type: | Public |
Elevation: | 3680 feet (1,122 meters) |
# of Runways: | 3 |
View all routes: | Routes from GTF |
More Information: | GTF Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | STQ / KOYM |
Airport Names: |
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Location: | St. Marys, Pennsylvania, United States |
GPS Coordinates: | 41°24'45"N by 78°30'8"W |
Area Served: | St. Marys, Pennsylvania |
Operator/Owner: | City of St. Marys |
Airport Type: | Public |
Elevation: | 1934 feet (589 meters) |
# of Runways: | 1 |
View all routes: | Routes from STQ |
More Information: | STQ Maps & Info |
Facts about Great Falls International Airport (GTF):
- Great Falls International Airport (GTF) has 3 runways.
- Great Falls International Airport is home to Great Falls Air National Guard Base and the Montana Air National Guard's 120th Fighter Wing, the "Vigilantes." An Air National Guard unit operationally-gained by the Air Combat Command, the 120 FW transitioned from the F-16C Fighting Falcon to the F-15C Eagle in January 2009, which it employs in the air defense and air dominance missions.
- In 1975 the terminal was replaced and all runways, aprons, and taxiways updated.
- In early 2012 Frontier Airlines announced new flights to Great Falls from the Denver hub.
- The furthest airport from Great Falls International Airport (GTF) is Sir Gaëtan Duval Airport (RRG), which is located 10,498 miles (16,896 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Great Falls International Airport (GTF) is Malmstrom Air Force Base (GFA), which is located only 9 miles (14 kilometers) E of GTF.
- In addition to being known as "Great Falls International Airport", another name for GTF is "(former Great Falls Army Airfield)".
- AvMax, a Calgary-based large jet maintenance and repair business, opened a large operation at GTF in 2006.
Facts about St. Marys Municipal Airport (STQ):
- The closest airport to St. Marys Municipal Airport (STQ) is DuBois Regional Airport (DUJ), which is located 26 miles (42 kilometers) SW of STQ.
- The airport covers 283 acres.
- The furthest airport from St. Marys Municipal Airport (STQ) is Margaret River Airport (MGV), which is located 11,533 miles (18,560 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to being known as "St. Marys Municipal Airport", another name for STQ is "OYM".
- St. Marys Municipal Airport (STQ) currently has only 1 runway.