Nonstop flight route between St. Mary's, Alaska, United States and Big Spring, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from KSM to BGS:
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- About this route
- KSM Airport Information
- BGS Airport Information
- Facts about KSM
- Facts about BGS
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to BGS
- List of Nearest Airports to BGS
- Map of Furthest Airports from BGS
- List of Furthest Airports from BGS
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Webb Air Force Base Big Spring Army Airfield (BGS), Big Spring, Texas, United States would travel a Great Circle distance of 3,373 miles (or 5,428 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 large distance between St. Mary's Airport and Webb Air Force Base Big Spring Army Airfield, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between St. Mary's Airport and Webb Air Force Base Big Spring Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | BGS / |
Airport Name: | Webb Air Force Base Big Spring Army Airfield |
Location: | Big Spring, Texas, United States |
GPS Coordinates: | 32°13'5"N by 101°31'17"W |
View all routes: | Routes from BGS |
More Information: | BGS Maps & Info |
Facts about St. Mary's Airport (KSM):
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- St. Mary's Airport (KSM) has 2 runways.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
Facts about Webb Air Force Base Big Spring Army Airfield (BGS):
- Webb AFB was turned over to the General Services Agency for disposal on 1 January 1978 and the property later turned over to the Big Spring Industrial Park.
- At that time, nearly 6,000 students had graduated and the field's training aircraft had flown approximately 400,000 hours and more than 60 million miles.
- The closest airport to Webb Air Force Base Big Spring Army Airfield (BGS) is Midland Airpark (MDD), which is located 36 miles (58 kilometers) WSW of BGS.
- By 1960, the consolidated pilot training program meant the consolidation of preflight, primary, and basic instruction into one school.
- The AT-11 which was activated to replace the separate air and ground units.
- The furthest airport from Webb Air Force Base Big Spring Army Airfield (BGS) is Sir Gaëtan Duval Airport (RRG), which is located 11,166 miles (17,969 kilometers) away in Rodrigues Island, Mauritius.