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

Arrival Airport:

Distance from IAH to KSM:
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- About this route
- IAH Airport Information
- KSM Airport Information
- Facts about IAH
- Facts about KSM
- Map of Nearest Airports to IAH
- List of Nearest Airports to IAH
- Map of Furthest Airports from IAH
- List of Furthest Airports from IAH
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between George Bush Intercontinental Airport (IAH), Houston, Texas, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,702 miles (or 5,957 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 George Bush Intercontinental Airport and St. Mary's Airport, 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 George Bush Intercontinental Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | IAH / KIAH |
Airport Names: |
|
Location: | Houston, Texas, United States |
GPS Coordinates: | 29°59'3"N by 95°20'29"W |
Area Served: | Houston–The Woodlands–Sugar Land |
Operator/Owner: | City of Houston |
Airport Type: | Public |
Elevation: | 97 feet (30 meters) |
# of Runways: | 5 |
View all routes: | Routes from IAH |
More Information: | IAH Maps & Info |
Arrival 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 |
Facts about George Bush Intercontinental Airport (IAH):
- The closest airport to George Bush Intercontinental Airport (IAH) is David Wayne Hooks Memorial Airport (DWH), which is located only 14 miles (22 kilometers) WNW of IAH.
- On July 11, 2013, Air China began nonstop flights from Houston to Beijing, China using a Boeing 777-300ER.
- Because of George Bush Intercontinental Airport's relatively low elevation of 97 feet, planes can take off or land at George Bush Intercontinental 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.
- On January 7, 2009, a Continental Airlines Boeing 737-800 departing Bush Intercontinental was the first U.S.
- In addition to being known as "George Bush Intercontinental Airport", another name for IAH is "Houston-Intercontinental".
- The furthest airport from George Bush Intercontinental Airport (IAH) is Cocos (Keeling) Island Airport (CCK), which is located 10,981 miles (17,672 kilometers) away in Cocos Islands, Australia.
- On March 31, 2014, Scandinavian Airlines announced that it will begin flights from Stavanger to Houston.
- Terminal B was also one of the original two terminals of the airport to open in 1969 and was also designed by Goleman & Rolfe and George Pierce-Abel B.
- The City of Houston annexed the Bush Airport area in 1965.
- Houston Intercontinental Airport, as it was originally known, opened in June 1969.
- George Bush Intercontinental Airport handled 40,128,953 passengers last year.
- Terminal E is IAH's newest terminal, and houses United Airlines's international operations and some domestic operations.
- George Bush Intercontinental Airport (IAH) has 5 runways.
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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.