Nonstop flight route between St. Mary's, Alaska, United States and Juneau, Alaska, United States:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(58°21'17"N by 134°34'35"W)
Distance from KSM to JNU:
1,009.59 miles (1,624.77 km)
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- About this route
- KSM Airport Information
- JNU Airport Information
- Facts about KSM
- Facts about JNU
- 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 JNU
- List of Nearest Airports to JNU
- Map of Furthest Airports from JNU
- List of Furthest Airports from JNU
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Juneau International Airport (JNU), Juneau, Alaska, United States would travel a Great Circle distance of 1,010 miles (or 1,625 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 Juneau International 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: | JNU / PAJN |
| Airport Name: | Juneau International Airport |
| Location: | Juneau, Alaska, United States |
| GPS Coordinates: | 58°21'17"N by 134°34'35"W |
| Area Served: | Juneau, Alaska |
| Operator/Owner: | City of Juneau |
| Airport Type: | Public |
| Elevation: | 21 feet (6 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from JNU |
| More Information: | JNU 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.
- 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.
Facts about Juneau International Airport (JNU):
- Because of Juneau International Airport's relatively low elevation of 21 feet, planes can take off or land at Juneau 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.
- Juneau International Airport (JNU) has 2 runways.
- The closest airport to Juneau International Airport (JNU) is Funter Bay Seaplane Base (FNR), which is located only 14 miles (22 kilometers) WSW of JNU.
- The furthest airport from Juneau International Airport (JNU) is Port Elizabeth International Airport (PLZ), which is located 10,521 miles (16,932 kilometers) away in Port Elizabeth, South Africa.
- This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a primary commercial service airport.
- The airport is the only way in and out of the city, with exception of the Alaska Marine Highway and cargo ships traversing the Inside Passage.
| 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 | 13.58 miles (21.85 km) WSW | Funter Bay Seaplane Base (FNR) | Funter Bay, Alaska, United States | |
| 2 | 31.93 miles (51.39 km) W | Excursion Inlet Seaplane Base (EXI) | Excursion Inlet, Alaska, United States | |
| 3 | 35.20 miles (56.65 km) WSW | Hoonah Airport (HNH) | Hoonah, Alaska, United States | |
| 4 | 41.25 miles (66.38 km) W | Gustavus Airport (GST) | Gustavus, Alaska, United States | |
| 5 | 58.83 miles (94.67 km) S | Angoon Seaplane Base (AGN) | Angoon, Alaska, United States | |
| 6 | 59.60 miles (95.92 km) SSW | Chatham Seaplane Base (CYM) | Chatham, Alaska, United States | |
| 7 | 65.29 miles (105.07 km) W | Elfin Cove Seaplane Base (ELV) | Elfin Cove, Alaska, United States | |
| 8 | 70.15 miles (112.90 km) NNW | Haines Airport (HNS) | Haines, Alaska, United States | |
| 9 | 80.77 miles (129.99 km) NNW | Skagway Airport (SGY) | Skagway, Alaska, United States | |
| 10 | 94.89 miles (152.72 km) SSW | Sitka Rocky Gutierrez Airport (SIT) | Sitka, Alaska, United States | |
| 11 | 99.39 miles (159.95 km) SSE | Kake Airport (KAE) | Kake, Alaska, United States | |
| 12 | 123.16 miles (198.20 km) SSE | Petersburg James A. Johnson Airport (PSG) | Petersburg, Alaska, United States | |
| 13 | 129.74 miles (208.80 km) ESE | Telegraph Creek Airport (YTX) | Telegraph Creek, British Columbia, Canada | |
| 14 | 141.28 miles (227.37 km) NNE | Teslin Airport (YZW) | Teslin, Yukon, Canada | |
| 15 | 142.89 miles (229.96 km) SSE | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,520.79 miles (16,931.53 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,520.16 miles (16,930.52 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 3 | 10,505.49 miles (16,906.91 km) SSE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,447.30 miles (16,813.26 km) SE | George Airport (GRJ) | George, South Africa | |
| 5 | 10,424.38 miles (16,776.38 km) SSE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,408.05 miles (16,750.10 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,347.70 miles (16,652.97 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 8 | 10,337.53 miles (16,636.60 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 10,328.35 miles (16,621.82 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 10 | 10,315.03 miles (16,600.39 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,300.85 miles (16,577.56 km) SSE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 12 | 10,300.78 miles (16,577.45 km) SSE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,293.43 miles (16,565.64 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 14 | 10,283.18 miles (16,549.13 km) SSE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,282.05 miles (16,547.32 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |