Nonstop flight route between San Antonio, Texas, United States and St. Mary's, Alaska, United States:
Departure Airport:
(29°31'36"N by 98°28'18"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from SAT to KSM:
3,627.32 miles (5,837.59 km)
Share this route:
Jump to:
- About this route
- SAT Airport Information
- KSM Airport Information
- Facts about SAT
- Facts about KSM
- Map of Nearest Airports to SAT
- List of Nearest Airports to SAT
- Map of Furthest Airports from SAT
- List of Furthest Airports from SAT
- 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 San Antonio International Airport (SAT), San Antonio, Texas, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,627 miles (or 5,838 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 San Antonio 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 San Antonio 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: | SAT / KSAT |
| Airport Name: | San Antonio International Airport |
| Location: | San Antonio, Texas, United States |
| GPS Coordinates: | 29°31'36"N by 98°28'18"W |
| Area Served: | San Antonio–New Braunfels |
| Operator/Owner: | City of San Antonio |
| Airport Type: | Public |
| Elevation: | 809 feet (247 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from SAT |
| More Information: | SAT 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 San Antonio International Airport (SAT):
- The furthest airport from San Antonio International Airport (SAT) is Sir Gaëtan Duval Airport (RRG), which is located 11,114 miles (17,886 kilometers) away in Rodrigues Island, Mauritius.
- San Antonio International Airport has two terminals with an overall 24 jet bridge gates.
- The closest airport to San Antonio International Airport (SAT) is Randolph Air Force Base Joint Base San Antonio (RND), which is located only 12 miles (19 kilometers) E of SAT.
- On November 9, 2010, Terminal 2 closed, and the new Terminal B was opened.
- Because of San Antonio International Airport's relatively low elevation of 809 feet, planes can take off or land at San Antonio International 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 Airport is undergoing a major, multi-million dollar expansion project which will add new terminals and parking facilities.
- San Antonio International Airport handled 8,034,720 passengers last year.
- San Antonio International Airport is a commercial airport in San Antonio, Texas, US.
- The former Terminal 2 was built in 1951–53, along with the FAA control tower and a baggage claim area.
- San Antonio International Airport (SAT) 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.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11.61 miles (18.68 km) E | Randolph Air Force Base Joint Base San Antonio (RND) | Universal City, Texas, United States |     |
| 2 | 11.84 miles (19.05 km) SSW | Lackland Air Force Base Joint Base San Antonio (SKF) | San Antonio, Texas, United States | |
| 3 | 13.11 miles (21.10 km) S | Stinson Municipal Airport (SSF) | San Antonio, Texas, United States | |
| 4 | 44.00 miles (70.81 km) WSW | South Texas Regional Airport at Hondo (HDO) | Hondo, Texas, United States | |
| 5 | 48.18 miles (77.54 km) NW | Kerrville Municipal Airport (ERV) | Kerrville, Texas, United States | |
| 6 | 66.62 miles (107.21 km) NE | Austin–Bergstrom International Airport (AUS) | Austin, Texas, United States | |
| 7 | 79.61 miles (128.12 km) WSW | Garner Field (UVA) | Uvalde, Texas, United States | |
| 8 | 80.66 miles (129.82 km) NE | Austin Executive Airport (EDC) | Austin, Texas, United States | |
| 9 | 86.60 miles (139.38 km) SSW | Cotulla–La Salle County Airport (COT) | Cotulla, Texas, United States | |
| 10 | 104.63 miles (168.39 km) ESE | Victoria Regional Airport (VCT) | Victoria, Texas, United States | |
| 11 | 113.14 miles (182.09 km) NNE | Killeen–Fort Hood Regional Airport (GRK) | Fort Hood / Killeen, Texas, United States | |
| 12 | 117.48 miles (189.06 km) NNE | Skylark Field (ILE) | Killeen, Texas, United States | |
| 13 | 120.26 miles (193.54 km) NNE | Hood Army Airfield (HLR) | Fort Hood / Killeen, Texas, United States | |
| 14 | 124.96 miles (201.11 km) NNW | Curtis Field (BBD) | Brady, Texas, United States | |
| 15 | 126.31 miles (203.27 km) SSE | Alice International Airport (ALI) | Alice, Texas, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,113.84 miles (17,885.94 km) ESE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,887.68 miles (17,521.99 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 3 | 10,820.69 miles (17,414.18 km) ESE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 10,716.83 miles (17,247.02 km) ESE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 5 | 10,709.53 miles (17,235.27 km) ESE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,466.62 miles (16,844.35 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 7 | 10,453.81 miles (16,823.73 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 8 | 10,449.48 miles (16,816.77 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 9 | 10,442.04 miles (16,804.80 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 10 | 10,441.09 miles (16,803.26 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,435.56 miles (16,794.37 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,432.01 miles (16,788.65 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 13 | 10,418.56 miles (16,767.00 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 14 | 10,415.54 miles (16,762.14 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 15 | 10,399.08 miles (16,735.65 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States | |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |