Nonstop flight route between San Juan, Puerto Rico and St. Mary's, Alaska, United States:
Departure Airport:
(18°27'24"N by 66°5'53"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from SIG to KSM:
5,324.22 miles (8,568.48 km)
Share this route:
Jump to:
- About this route
- SIG Airport Information
- KSM Airport Information
- Facts about SIG
- Facts about KSM
- Map of Nearest Airports to SIG
- List of Nearest Airports to SIG
- Map of Furthest Airports from SIG
- List of Furthest Airports from SIG
- 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 Fernando Luis Ribas Dominicci Airport (SIG), San Juan, Puerto Rico and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 5,324 miles (or 8,568 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 Fernando Luis Ribas Dominicci 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 Fernando Luis Ribas Dominicci 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: | SIG / TJIG |
| Airport Names: |
|
| Location: | San Juan, Puerto Rico |
| GPS Coordinates: | 18°27'24"N by 66°5'53"W |
| Area Served: | San Juan, Puerto Rico |
| Operator/Owner: | Puerto Rico Ports Authority |
| Airport Type: | Public |
| Elevation: | 9 feet (3 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SIG |
| More Information: | SIG 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 Fernando Luis Ribas Dominicci Airport (SIG):
- Because of Fernando Luis Ribas Dominicci Airport's relatively low elevation of 9 feet, planes can take off or land at Fernando Luis Ribas Dominicci 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.
- A controversy regarding Isla Grande and Dorado Airport surfaced in 2003.
- Fernando Luis Ribas Dominicci Airport (SIG) currently has only 1 runway.
- The closest airport to Fernando Luis Ribas Dominicci Airport (SIG) is Luis Muñoz Marín International Airport (SJU), which is located only 6 miles (10 kilometers) E of SIG.
- In addition to being known as "Fernando Luis Ribas Dominicci Airport", another name for SIG is "Isla Grande AirportAeropuerto Isla Grande".
- The furthest airport from Fernando Luis Ribas Dominicci Airport (SIG) is Barrow Island Airport (BWB), which is nearly antipodal to Fernando Luis Ribas Dominicci Airport (meaning Fernando Luis Ribas Dominicci Airport is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,244 miles (19,704 kilometers) away in Barrow Island, Western Australia, Australia.
Facts about St. Mary's Airport (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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 6.43 miles (10.35 km) E | Luis Muñoz Marín International Airport (SJU) | San Juan, Puerto Rico |     |
| 2 | 12.74 miles (20.50 km) W | Dorado Airport (DDP) | Dorado, Puerto Rico | |
| 3 | 29.42 miles (47.35 km) SE | Humacao Airport (HUC) | Humacao, Puerto Rico, United States | |
| 4 | 30.40 miles (48.92 km) ESE | Diego Jiménez Torres Airport (FAJ) | Fajardo, Puerto Rico, United States | |
| 5 | 37.83 miles (60.89 km) W | Antonio (Nery) Juarbe Pol Airport (ARE) | Arecibo, Puerto Rico | |
| 6 | 43.47 miles (69.96 km) SW | Mercedita Airport (PSE) | Ponce, Puerto Rico | |
| 7 | 45.48 miles (73.19 km) ESE | Antonio Rivera Rodríguez Airport (VQS) | Vieques, Puerto Rico, United States | |
| 8 | 52.99 miles (85.27 km) E | Benjamín Rivera Noriega Airport (CPX) | Isla de Culebra, Puerto Rico | |
| 9 | 67.62 miles (108.83 km) W | Rafael Hernández Airport (BQN) | Aguadilla, Puerto Rico | |
| 10 | 70.24 miles (113.05 km) W | Eugenio María de Hostos Airport (MAZ) | Mayagüez, Puerto Rico | |
| 11 | 74.22 miles (119.44 km) E | Cyril E. King Airport (STT) | Charlotte Amalie, Saint Thomas, United States Virgin Islands | |
| 12 | 76.32 miles (122.83 km) E | Charlotte Amalie Harbor Seaplane Base (SPB) | Charlotte Amalie, Saint Thomas, U.S. Virgin Islands | |
| 13 | 99.77 miles (160.57 km) ESE | Henry E. Rohlsen International Airport (STX) | Christiansted, Saint Croix, United States Virgin Islands | |
| 14 | 101.94 miles (164.05 km) E | Terrance B. Lettsome International Airport (EIS) | Beef Island (near Tortola), British Virgin Islands | |
| 15 | 103.81 miles (167.06 km) ESE | Christiansted Harbor Seaplane Base (SSB) | Christiansted, Saint Croix, U.S. Virgin Islands | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,243.74 miles (19,704.35 km) SSW | Barrow Island Airport (BWB) | Barrow Island, Western Australia, Australia | |
| 2 | 12,193.44 miles (19,623.39 km) SW | Karratha Airport (KTA) | Karratha / Dampier, Western Australia, Australia | |
| 3 | 12,175.40 miles (19,594.36 km) S | RAAF Learmonth (LEA) | Exmouth, Western Australia, Australia | |
| 4 | 12,101.55 miles (19,475.51 km) WSW | Port Hedland International Airport (PHE) | Port Hedland, Western Australia, Australia | |
| 5 | 12,096.54 miles (19,467.45 km) SW | Coolawanyah Station Airport (COY) | Coolawanyah Station, Western Australia, Australia | |
| 6 | 12,074.33 miles (19,431.71 km) SW | Solomon Airport (SLJ) | Karijini National Park, Western Australia, Australia | |
| 7 | 12,044.85 miles (19,384.26 km) SW | Tom Price Airport (TPR) | Tom Price, Western Australia, Australia | |
| 8 | 12,027.29 miles (19,356.00 km) SW | Paraburdoo Airport (PBO) | Paraburdoo, Western Australia, Australia | |
| 9 | 11,992.71 miles (19,300.34 km) S | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 10 | 11,992.58 miles (19,300.14 km) SW | Coondewanna Airport (CJF) | Coondewanna, Western Australia, Australia | |
| 11 | 11,988.69 miles (19,293.88 km) SW | Barimunya Airport (BYP) | Barimunya, Western Australia, Australia | |
| 12 | 11,924.58 miles (19,190.71 km) SW | Newman Airport (ZNE) | Newman, Western Australia, Australia | |
| 13 | 11,922.56 miles (19,187.44 km) S | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 14 | 11,889.24 miles (19,133.83 km) W | Broome International Airport (BME) | Broome, Western Australia, Australia | |
| 15 | 11,800.27 miles (18,990.65 km) SSW | Meekatharra Airport (MKR) | Meekatharra, 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 | |