Nonstop flight route between Kirkwall, Orkney Islands, United Kingdom and Ruislip, England, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from KOI to NHT:
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- About this route
- KOI Airport Information
- NHT Airport Information
- Facts about KOI
- Facts about NHT
- Map of Nearest Airports to KOI
- List of Nearest Airports to KOI
- Map of Furthest Airports from KOI
- List of Furthest Airports from KOI
- Map of Nearest Airports to NHT
- List of Nearest Airports to NHT
- Map of Furthest Airports from NHT
- List of Furthest Airports from NHT
About this route:
A direct, nonstop flight between Kirkwall Airport (KOI), Kirkwall, Orkney Islands, United Kingdom and RAF Northolt (NHT), Ruislip, England, United Kingdom would travel a Great Circle distance of 521 miles (or 838 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 Kirkwall Airport and RAF Northolt, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | KOI / EGPA |
Airport Name: | Kirkwall Airport |
Location: | Kirkwall, Orkney Islands, United Kingdom |
GPS Coordinates: | 58°57'29"N by 2°54'2"W |
Area Served: | Mainland, Orkney |
Operator/Owner: | Highlands and Islands Airports Limited |
Airport Type: | Public |
Elevation: | 58 feet (18 meters) |
# of Runways: | 2 |
View all routes: | Routes from KOI |
More Information: | KOI Maps & Info |
Arrival 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 |
Facts about Kirkwall Airport (KOI):
- The closest airport to Kirkwall Airport (KOI) is Stronsay Airport (SOY), which is located only 16 miles (26 kilometers) NE of KOI.
- Because of Kirkwall Airport's relatively low elevation of 58 feet, planes can take off or land at Kirkwall 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 Kirkwall Airport (KOI) is Ryan's Creek Aerodrome (SZS), which is located 11,525 miles (18,548 kilometers) away in Stewart Island, New Zealand.
- Kirkwall Airport (KOI) has 2 runways.
- Kirkwall Airport handled 145,897 passengers last year.
Facts about RAF Northolt (NHT):
- An additional memorial to British, Polish, Australian and New Zealand aircrew killed during the Battle of Britain was unveiled in September 2010.
- The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
- Construction of the new aerodrome, to be named "RFC Military School, Ruislip", began in January 1915.
- Thirty Allied airmen including servicemen from Belgium, Canada, Czechoslovakia, New Zealand, Poland and the United Kingdom were killed flying from RAF Northolt during the Battle of Britain, of whom ten were Polish.
- 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.
- Northolt received its first gate guardian, a Spitfire F.Mk 22, in September 1963.