Nonstop flight route between Petersburg, Alaska, United States and Georgetown, Ascension Island, Saint Helena:
Departure Airport:
(56°48'5"N by 132°56'45"W)
Arrival Airport:
(7°58'9"S by 14°23'38"W)
Distance from PSG to ASI:
7,740.95 miles (12,457.82 km)
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Jump to:
- About this route
- PSG Airport Information
- ASI Airport Information
- Facts about PSG
- Facts about ASI
- Map of Nearest Airports to PSG
- List of Nearest Airports to PSG
- Map of Furthest Airports from PSG
- List of Furthest Airports from PSG
- Map of Nearest Airports to ASI
- List of Nearest Airports to ASI
- Map of Furthest Airports from ASI
- List of Furthest Airports from ASI
About this route:
A direct, nonstop flight between Petersburg James A. Johnson Airport (PSG), Petersburg, Alaska, United States and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 7,741 miles (or 12,458 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 Petersburg James A. Johnson Airport and RAF Ascension, 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 Petersburg James A. Johnson Airport and RAF Ascension. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | PSG / PAPG |
| Airport Name: | Petersburg James A. Johnson Airport |
| Location: | Petersburg, Alaska, United States |
| GPS Coordinates: | 56°48'5"N by 132°56'45"W |
| Area Served: | Petersburg, Alaska |
| Airport Type: | Public |
| Elevation: | 113 feet (34 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PSG |
| More Information: | PSG Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | ASI / FHAW |
| Airport Names: |
|
| Location: | Georgetown, Ascension Island, Saint Helena |
| GPS Coordinates: | 7°58'9"S by 14°23'38"W |
| Operator/Owner: | Ministry of Defence |
| View all routes: | Routes from ASI |
| More Information: | ASI Maps & Info |
Facts about Petersburg James A. Johnson Airport (PSG):
- The furthest airport from Petersburg James A. Johnson Airport (PSG) is Port Alfred Airport (AFD), which is located 10,570 miles (17,010 kilometers) away in Port Alfred, South Africa.
- Because of Petersburg James A. Johnson Airport's relatively low elevation of 113 feet, planes can take off or land at Petersburg James A. Johnson 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 closest airport to Petersburg James A. Johnson Airport (PSG) is Wrangell Airport (WRG), which is located 31 miles (50 kilometers) SE of PSG.
- Petersburg James A. Johnson Airport (PSG) currently has only 1 runway.
Facts about RAF Ascension (ASI):
- The Target Tracking Radar Station was a Nike Zeus test facility for tracking reentry vehicles from Cape Canaveral missile launches.
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- In 1939 Ascension became important as a HF/DF radio station covering trade routes.
- Ascension serves as a diversion airport for ETOPS aircraft crossing the Atlantic.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- The furthest airport from RAF Ascension (ASI) is Ujae Airport (UJE), which is nearly antipodal to RAF Ascension (meaning RAF Ascension is almost on the exact opposite side of the Earth from Ujae Airport), and is located 12,370 miles (19,907 kilometers) away in Ujae Atoll, Marshall Islands.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 30.97 miles (49.84 km) SE | Wrangell Airport (WRG) | Wrangell, Alaska, United States |     |
| 2 | 38.04 miles (61.22 km) WNW | Kake Airport (KAE) | Kake, Alaska, United States | |
| 3 | 40.34 miles (64.91 km) SW | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| 4 | 41.29 miles (66.44 km) SW | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| 5 | 47.80 miles (76.93 km) S | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 6 | 54.52 miles (87.75 km) S | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 7 | 61.46 miles (98.91 km) SSW | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 8 | 66.63 miles (107.24 km) S | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 9 | 70.93 miles (114.14 km) E | Bronson Creek Airport (YBM) | Bronson Creek, British Columbia, Canada | |
| 10 | 75.33 miles (121.23 km) WSW | Port Alexander Seaplane Base (PTD) | Port Alexander, Alaska, United States | |
| 11 | 78.27 miles (125.96 km) NW | Angoon Seaplane Base (AGN) | Angoon, Alaska, United States | |
| 12 | 78.51 miles (126.35 km) SSE | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 13 | 84.59 miles (136.14 km) S | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 14 | 89.70 miles (144.36 km) NW | Chatham Seaplane Base (CYM) | Chatham, Alaska, United States | |
| 15 | 91.42 miles (147.12 km) S | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,569.61 miles (17,010.10 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,565.32 miles (17,003.20 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,558.86 miles (16,992.79 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,482.62 miles (16,870.11 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,481.31 miles (16,868.00 km) SE | George Airport (GRJ) | George, South Africa | |
| 6 | 10,472.38 miles (16,853.62 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,405.53 miles (16,746.04 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,394.18 miles (16,727.77 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,375.30 miles (16,697.39 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 10,370.00 miles (16,688.85 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 11 | 10,365.18 miles (16,681.10 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,360.30 miles (16,673.24 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,359.36 miles (16,671.74 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 14 | 10,344.29 miles (16,647.49 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,339.25 miles (16,639.37 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 964.90 miles (1,552.85 km) NNE | Sasstown Airport (SAZ) | Sasstown, Liberia | |
| 2 | 970.07 miles (1,561.18 km) NNE | Cape Palmas Airport (CPA) | Cape Palmas, Liberia | |
| 3 | 970.61 miles (1,562.04 km) NNE | Greenville/Sinoe Airport (SNI) | Greenville, Liberia | |
| 4 | 1,004.06 miles (1,615.87 km) NNE | Buchanan Airport (UCN) | Buchanan, Liberia | |
| 5 | 1,016.52 miles (1,635.93 km) NNE | Spriggs Payne Airport (MLW) | Monrovia, Liberia | |
| 6 | 1,019.92 miles (1,641.40 km) NNE | Roberts International Airport Roberts Field (ROB) | Monrovia, Liberia | |
| 7 | 1,057.48 miles (1,701.85 km) NNE | Sassandra Airport (ZSS) | Sassandra, Côte d'Ivoire | |
| 8 | 1,060.22 miles (1,706.26 km) NNE | Tchien Airport (THC) | Tchien, Liberia | |
| 9 | 1,078.81 miles (1,736.16 km) N | Sherbro International Airport (BTE) | Bonthe, Sierra Leone | |
| 10 | 1,099.23 miles (1,769.04 km) N | Gbangbatok Airport (GBK) | Gbangbatok, Sierra Leone | |
| 11 | 1,108.19 miles (1,783.46 km) NNE | Guiglo Airport (GGO) | Guiglo, Côte d'Ivoire | |
| 12 | 1,114.35 miles (1,793.37 km) N | Bo Airport (KBS) | Bo, Sierra Leone | |
| 13 | 1,118.49 miles (1,800.03 km) NNE | Kenema Airport (KEN) | Kenema, Sierra Leone | |
| 14 | 1,131.83 miles (1,821.51 km) NNE | Gagnoa Airport (GGN) | Gagnoa, Côte d'Ivoire | |
| 15 | 1,133.99 miles (1,824.97 km) N | Hastings Airport (HGS) | Freetown, Sierra Leone | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,369.71 miles (19,907.06 km) N | Ujae Airport (UJE) | Ujae Atoll, Marshall Islands | |
| 2 | 12,357.05 miles (19,886.69 km) NW | Lae Airport (LML) | Lae Atoll, Marshall Islands | |
| 3 | 12,310.77 miles (19,812.22 km) NW | Elenak Airport (EAL) | Elenak, Marshall Islands | |
| 4 | 12,282.52 miles (19,766.74 km) WNW | Bucholz Army Airfield (KWA) | Kwajalein, Marshall Islands | |
| 5 | 12,282.50 miles (19,766.72 km) WNW | Ebadon Airstrip (EBN) | Kwajalein Atoll, Marshall Islands | |
| 6 | 12,282.14 miles (19,766.14 km) N | Wotho Airport (WTO) | Wotho, Marshall Islands | |
| 7 | 12,254.29 miles (19,721.32 km) W | Majkin Airport (MJE) | Majkin, Marshall Islands | |
| 8 | 12,232.07 miles (19,685.57 km) W | Woja Airport (WJA) | Woja, Marshall Islands | |
| 9 | 12,217.96 miles (19,662.86 km) W | Ailinglaplap Atoll (AIP) | Ailinglaplap Atoll, Marshall Islands | |
| 10 | 12,205.53 miles (19,642.85 km) W | Jabot Airport (JAT) | Jabat Island, Marshall Islands | |
| 11 | 12,205.39 miles (19,642.62 km) W | Jeh Airport (JEJ) | Ailinglaplap Atoll, Marshall Islands | |
| 12 | 12,200.28 miles (19,634.41 km) NW | Namorik Airport (NDK) | Namorik Atoll, Marshall Islands | |
| 13 | 12,199.88 miles (19,633.75 km) NNW | Rongelap Airport (RNP) | Rongelap Atoll, Marshall Islands | |
| 14 | 12,191.27 miles (19,619.90 km) N | Bikini Atoll Airport (BII) | Bikini Atoll, Marshall Islands | |
| 15 | 12,180.68 miles (19,602.86 km) NE | Kosrae International Airport (KSA) | Kosrae, Federated States of Micronesia | |