Nonstop flight route between Ruislip, England, United Kingdom and Salem, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from NHT to SLO:
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- About this route
- NHT Airport Information
- SLO Airport Information
- Facts about NHT
- Facts about SLO
- Map of Nearest Airports to NHT
- List of Nearest Airports to NHT
- Map of Furthest Airports from NHT
- List of Furthest Airports from NHT
- Map of Nearest Airports to SLO
- List of Nearest Airports to SLO
- Map of Furthest Airports from SLO
- List of Furthest Airports from SLO
About this route:
A direct, nonstop flight between RAF Northolt (NHT), Ruislip, England, United Kingdom and Salem–Leckrone Airport (SLO), Salem, Illinois, United States would travel a Great Circle distance of 4,139 miles (or 6,661 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 RAF Northolt and Salem–Leckrone 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 RAF Northolt and Salem–Leckrone Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | NHT / EGWU |
Airport Name: | RAF Northolt |
Location: | Ruislip, England, United Kingdom |
GPS Coordinates: | 51°33'11"N by 0°25'5"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from NHT |
More Information: | NHT Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SLO / KSLO |
Airport Name: | Salem–Leckrone Airport |
Location: | Salem, Illinois, United States |
GPS Coordinates: | 38°38'34"N by 88°57'51"W |
Area Served: | Salem, Illinois |
Operator/Owner: | Salem Airport Authority |
Airport Type: | Public |
Elevation: | 573 feet (175 meters) |
# of Runways: | 1 |
View all routes: | Routes from SLO |
More Information: | SLO Maps & Info |
Facts about RAF Northolt (NHT):
- Northolt received its first gate guardian, a Spitfire F.Mk 22, in September 1963.
- The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
- The furthest airport from RAF Northolt (NHT) is Chatham Islands (CHT), which is located 11,871 miles (19,105 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- An additional memorial to British, Polish, Australian and New Zealand aircrew killed during the Battle of Britain was unveiled in September 2010.
- During 1952 a total of 50,000 air movements were recorded per annum, making the airfield the busiest in Europe.
- No. 600 Squadron and No.
Facts about Salem–Leckrone Airport (SLO):
- Because of Salem–Leckrone Airport's relatively low elevation of 573 feet, planes can take off or land at Salem–Leckrone 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 furthest airport from Salem–Leckrone Airport (SLO) is Margaret River Airport (MGV), which is located 11,062 miles (17,802 kilometers) away in Margaret River, Western Australia, Australia.
- Salem–Leckrone Airport (SLO) currently has only 1 runway.
- The closest airport to Salem–Leckrone Airport (SLO) is Mt. Vernon Airport (MVN), which is located 23 miles (37 kilometers) SSE of SLO.