Nonstop flight route between St. Mary's, Alaska, United States and Ruby, Alaska, United States:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(64°43'37"N by 155°28'11"W)
Distance from KSM to RBY:
304.08 miles (489.36 km)
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Jump to:
- About this route
- KSM Airport Information
- RBY Airport Information
- Facts about KSM
- Facts about RBY
- 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 RBY
- List of Nearest Airports to RBY
- Map of Furthest Airports from RBY
- List of Furthest Airports from RBY
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Ruby Airport (RBY), Ruby, Alaska, United States would travel a Great Circle distance of 304 miles (or 489 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 relatively short distance between St. Mary's Airport and Ruby Airport, the route shown on this map most likely still appears to be a straight line.
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: | RBY / PARY |
| Airport Name: | Ruby Airport |
| Location: | Ruby, Alaska, United States |
| GPS Coordinates: | 64°43'37"N by 155°28'11"W |
| Area Served: | Ruby, Alaska |
| Operator/Owner: | State of Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 658 feet (201 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from RBY |
| More Information: | RBY 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.
- 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.
Facts about Ruby Airport (RBY):
- Ruby Airport is a state owned, public use airport located one nautical mile southeast of the central business district of Ruby, a city in the Yukon-Koyukuk Census Area of the U.S.
- The closest airport to Ruby Airport (RBY) is Edward G. Pitka Sr. Airport (GAL), which is located 43 miles (70 kilometers) W of RBY.
- Ruby Airport (RBY) currently has only 1 runway.
- The furthest airport from Ruby Airport (RBY) is George Airport (GRJ), which is located 10,312 miles (16,596 kilometers) away in George, South Africa.
- Because of Ruby Airport's relatively low elevation of 658 feet, planes can take off or land at Ruby 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 | 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 43.28 miles (69.66 km) W | Edward G. Pitka Sr. Airport (GAL) | Galena, Alaska, United States | |
| 2 | 67.28 miles (108.28 km) W | Koyukuk Airport (KYU) | Koyukuk, Alaska, United States | |
| 3 | 71.75 miles (115.48 km) NNW | Huslia Airport (HSL) | Huslia, Alaska, United States | |
| 4 | 76.81 miles (123.61 km) W | Nulato Airport (NUL) | Nulato, Alaska, United States | |
| 5 | 82.38 miles (132.58 km) SSW | Bear Creek 3 Airport (BCC) | Bear Creek, Alaska, United States | |
| 6 | 97.05 miles (156.19 km) NNE | Hughes Airport (HUS) | Hughes, Alaska, United States | |
| 7 | 101.16 miles (162.79 km) NNE | Indian Mountain LRRS Airport (UTO) | Utopia Creek, Alaska, United States | |
| 8 | 101.22 miles (162.90 km) WSW | Kaltag Airport (KAL) | Kaltag, Alaska, United States | |
| 9 | 103.04 miles (165.82 km) ENE | Ralph M. Calhoun Memorial Airport (TAL) | Tanana, Alaska, United States | |
| 10 | 111.26 miles (179.06 km) ESE | Minchumina Airport (LMA) | Lake Minchumina, Alaska, United States | |
| 11 | 111.26 miles (179.06 km) ESE | Minchumina Airport (MHM) | Minchumina, Alaska, United States | |
| 12 | 113.62 miles (182.85 km) SE | Telida Airport (TLF) | Telida, Alaska, United States | |
| 13 | 120.98 miles (194.70 km) S | Takotna Airport (TCT) | Takotna, Alaska, United States | |
| 14 | 122.67 miles (197.42 km) S | McGrath Airport (MCG) | McGrath, Alaska, United States | |
| 15 | 122.80 miles (197.62 km) SSE | Nikolai Airport (NIB) | Nikolai, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,312.29 miles (16,595.97 km) S | George Airport (GRJ) | George, South Africa | |
| 2 | 10,312.21 miles (16,595.85 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,297.01 miles (16,571.38 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 4 | 10,280.66 miles (16,545.08 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,242.63 miles (16,483.88 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,137.35 miles (16,314.44 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,083.41 miles (16,227.63 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,040.61 miles (16,158.76 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 9 | 10,023.20 miles (16,130.73 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 10,021.35 miles (16,127.76 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 11 | 10,020.75 miles (16,126.79 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,014.79 miles (16,117.20 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 9,999.61 miles (16,092.76 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 14 | 9,996.68 miles (16,088.06 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 15 | 9,994.13 miles (16,083.95 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |