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

Arrival Airport:

Distance from TUS to KSM:
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- About this route
- TUS Airport Information
- KSM Airport Information
- Facts about TUS
- Facts about KSM
- Map of Nearest Airports to TUS
- List of Nearest Airports to TUS
- Map of Furthest Airports from TUS
- List of Furthest Airports from TUS
- 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 Tucson International Airport (TUS), Tucson, Arizona, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,082 miles (or 4,959 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 Tucson International 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 Tucson International 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: | TUS / KTUS |
Airport Name: | Tucson International Airport |
Location: | Tucson, Arizona, United States |
GPS Coordinates: | 32°6'57"N by 110°56'27"W |
Area Served: | Tucson, Arizona |
Operator/Owner: | City of Tucson |
Airport Type: | Public |
Elevation: | 2643 feet (806 meters) |
# of Runways: | 3 |
View all routes: | Routes from TUS |
More Information: | TUS 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 Tucson International Airport (TUS):
- All international arrivals and departures use the Main Terminal.
- During its history at TUS, the 162nd has operated the F-86 Sabre, F-100 Super Sabre, F-102 Delta Dagger, A-7 Corsair II and F-16 Fighting Falcon aircraft.
- The furthest airport from Tucson International Airport (TUS) is Sir Gaëtan Duval Airport (RRG), which is located 11,513 miles (18,528 kilometers) away in Rodrigues Island, Mauritius.
- Tucson International Airport hosts Tucson Air National Guard Base, a 92-acre complex on the northwest corner of the airport that is home to the 162d Fighter Wing, an Air Education and Training Command -gained unit of the Arizona Air National Guard.
- During World War II the airfield was used by the United States Army Air Forces Air Technical Service Command.
- The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport since it has over 10,000 passenger boardings per year.Federal Aviation Administration records say the airport had 1,779,679 enplanements in 2011, a decrease from 1,844,228 in 2010.
- There has been a propensity in local Tucson / Pima County area news media outlets and other business and governmental entities in the Tucson metropolitan area outside of the professional aviation community to refer to the airport as "TIA" versus the airport's actual airport code of "TUS" in either reporting or reference.
- Airlines usually use Runway 11L.
- The closest airport to Tucson International Airport (TUS) is Davis–Monthan Air Force Base (DMA), which is located only 5 miles (8 kilometers) NE of TUS.
- Tucson International Airport handled 1,779,679 passengers last year.
- Tucson International Airport (TUS) has 3 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.
- 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.