Nonstop flight route between Oshkosh, Wisconsin, United States and Georgetown, Ascension Island, Saint Helena:
Departure Airport:

Arrival Airport:

Distance from OSH to ASI:
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- About this route
- OSH Airport Information
- ASI Airport Information
- Facts about OSH
- Facts about ASI
- Map of Nearest Airports to OSH
- List of Nearest Airports to OSH
- Map of Furthest Airports from OSH
- List of Furthest Airports from OSH
- 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 Wittman Regional Airport (OSH), Oshkosh, Wisconsin, United States and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 5,829 miles (or 9,381 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 Wittman Regional 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 Wittman Regional 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: | OSH / KOSH |
Airport Name: | Wittman Regional Airport |
Location: | Oshkosh, Wisconsin, United States |
GPS Coordinates: | 43°59'3"N by 88°33'24"W |
Area Served: | Oshkosh, Wisconsin |
Airport Type: | Public |
Elevation: | 808 feet (246 meters) |
# of Runways: | 4 |
View all routes: | Routes from OSH |
More Information: | OSH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ASI / FHAW |
Airport Names: |
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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 Wittman Regional Airport (OSH):
- The airport is the site of the annual Experimental Aircraft Association's AirVenture Oshkosh, an experimental aircraft and sport aviation airshow.
- The closest airport to Wittman Regional Airport (OSH) is Fond du Lac County Airport (FLD), which is located only 15 miles (24 kilometers) SSE of OSH.
- Wittman Regional Airport (OSH) has 4 runways.
- The furthest airport from Wittman Regional Airport (OSH) is Margaret River Airport (MGV), which is located 10,996 miles (17,696 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Wittman Regional Airport's relatively low elevation of 808 feet, planes can take off or land at Wittman Regional 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.
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.
- Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
- 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.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- RAF Ascension Island is also the refuelling point for the Ministry of Defence's South Atlantic Air Bridge flights to RAF Mount Pleasant, on the Falkland Islands, from RAF Brize Norton in Oxfordshire, in the UK.
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- The station comes under the overall jurisdiction of the Commander British Forces South Atlantic Islands, an officer of one-star rank.