Nonstop flight route between Ruislip, England, United Kingdom and Smithton, Tasmania, Australia:
Departure Airport:

Arrival Airport:

Distance from NHT to SIO:
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- About this route
- NHT Airport Information
- SIO Airport Information
- Facts about NHT
- Facts about SIO
- 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 SIO
- List of Nearest Airports to SIO
- Map of Furthest Airports from SIO
- List of Furthest Airports from SIO
About this route:
A direct, nonstop flight between RAF Northolt (NHT), Ruislip, England, United Kingdom and Smithton Airport (SIO), Smithton, Tasmania, Australia would travel a Great Circle distance of 10,650 miles (or 17,139 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 Smithton 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 Smithton 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: | SIO / YSMI |
Airport Name: | Smithton Airport |
Location: | Smithton, Tasmania, Australia |
GPS Coordinates: | 40°50'6"S by 145°4'59"E |
Operator/Owner: | DIER |
Airport Type: | Public |
Elevation: | 31 feet (9 meters) |
# of Runways: | 2 |
View all routes: | Routes from SIO |
More Information: | SIO Maps & Info |
Facts about RAF Northolt (NHT):
- The remains of a Hawker Hurricane flown by Flying Officer Ludwik Witold Paszkiewicz, the first pilot in No. 303 Squadron to shoot down an enemy aircraft, were donated to the station in June 2008.
- Northolt became an active base during the Second World War for Royal Air Force and Polish Air Force squadrons in their defence of the United Kingdom.
- In December 1946, after taking off during a heavy snowstorm, a Douglas DC-3 operated by British European Airways, flying from Northolt to Glasgow, crashed onto the roof of a house in South Ruislip.
- 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.
- RAF Northolt became home to Prime Minister Winston Churchill's personal aircraft, a modified Douglas C-54 Skymaster, in June 1944.
- The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
- After the Battle of Britain, the station remained a base for daytime fighter operations, with No.
Facts about Smithton Airport (SIO):
- The closest airport to Smithton Airport (SIO) is Burnie Airport (BWT), which is located 36 miles (57 kilometers) ESE of SIO.
- Because of Smithton Airport's relatively low elevation of 31 feet, planes can take off or land at Smithton 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 Smithton Airport (SIO) is Corvo Airport (CVU), which is nearly antipodal to Smithton Airport (meaning Smithton Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,221 miles (19,667 kilometers) away in Corvo Island, Azores, Portugal.
- Smithton Airport (SIO) has 2 runways.