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

Arrival Airport:

Distance from KSM to EFD:
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- About this route
- KSM Airport Information
- EFD Airport Information
- Facts about KSM
- Facts about EFD
- 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 EFD
- List of Nearest Airports to EFD
- Map of Furthest Airports from EFD
- List of Furthest Airports from EFD
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), Houston, Texas, United States would travel a Great Circle distance of 3,729 miles (or 6,002 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 Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field, 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 Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field. 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: | EFD / KEFD |
Airport Names: |
|
Location: | Houston, Texas, United States |
GPS Coordinates: | 29°36'25"N by 95°9'32"W |
View all routes: | Routes from EFD |
More Information: | EFD 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.
- 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.
- St. Mary's Airport (KSM) has 2 runways.
Facts about Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD):
- The closest airport to Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is William P. Hobby Airport (HOU), which is located only 8 miles (12 kilometers) WNW of EFD.
- In May 1923, the War Department had ordered the small caretaker force at Ellington Field to dismantle all remaining structures and to sell them as surplus.
- By the end of 1943, more than 65 women who served in the Women's Army Corps were also stationed at Ellington.
- In addition to being known as "Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field", another name for EFD is "Ellington Field JRB".
- The base, which consisted of a few hangars and some wooden headquarters buildings, was completed in a matter of months.
- The furthest airport from Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is Cocos (Keeling) Island Airport (CCK), which is located 11,008 miles (17,716 kilometers) away in Cocos Islands, Australia.
- Ellington Field was the site for advanced flight training for bomber pilots.