Nonstop flight route between Ruislip, England, United Kingdom and Portsmouth, Ohio, United States:
Departure Airport:
(51°33'11"N by 0°25'5"W)
Arrival Airport:
(38°50'26"N by 82°50'49"W)
Distance from NHT to PMH:
3,889.27 miles (6,259.15 km)
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- About this route
- NHT Airport Information
- PMH Airport Information
- Facts about NHT
- Facts about PMH
- 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 PMH
- List of Nearest Airports to PMH
- Map of Furthest Airports from PMH
- List of Furthest Airports from PMH
About this route:
A direct, nonstop flight between RAF Northolt (NHT), Ruislip, England, United Kingdom and Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States would travel a Great Circle distance of 3,889 miles (or 6,259 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 Greater Portsmouth Regional 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 Greater Portsmouth Regional 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: | PMH / KPMH |
| Airport Name: | Greater Portsmouth Regional Airport |
| Location: | Portsmouth, Ohio, United States |
| GPS Coordinates: | 38°50'26"N by 82°50'49"W |
| Area Served: | Portsmouth, Ohio |
| Operator/Owner: | Scioto County Airport Authority |
| Airport Type: | Public |
| Elevation: | 663 feet (202 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PMH |
| More Information: | PMH Maps & Info |
Facts about RAF Northolt (NHT):
- No. 600 Squadron and No.
- On 1 June 1960, an Avro Anson aircraft suffered engine failure soon after take-off from Northolt and crash-landed on top of the nearby Express Dairies plant in South Ruislip.
- 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 Ministry of Defence launched Project MoDEL in 2006 to consolidate many of its London-based operations at RAF Northolt.
- 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.
- Much media attention focused on the airfield when the body of Diana, Princess of Wales, arrived there from Villacoublay airfield, in Paris, France, after her death in a car crash in the city on 31 August 1997.
- Starting in 1946 the airfield was used by civil aviation during the construction of nearby Heathrow Airport.
- The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
Facts about Greater Portsmouth Regional Airport (PMH):
- The furthest airport from Greater Portsmouth Regional Airport (PMH) is Margaret River Airport (MGV), which is located 11,385 miles (18,322 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Greater Portsmouth Regional Airport's relatively low elevation of 663 feet, planes can take off or land at Greater Portsmouth 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.
- The closest airport to Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
- The airport offers fuel services along with a small snack bar, a couple of hangars, mechanics, and pilot snooze room.
- Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 5.54 miles (8.91 km) SSW | London Heathrow Airport (LHR) | London, England, United Kingdom |     |
| 2 | 16.36 miles (26.33 km) NNE | Hatfield Aerodrome (HTF) | Hatfield, Hertfordshire, England, United Kingdom | |
| 3 | 18.69 miles (30.08 km) WNW | RAF High Wycombe (HYC) | High Wycombe, Buckinghamshire, England, United Kingdom | |
| 4 | 20.62 miles (33.19 km) E | London City Airport (LCY) | London, England, United Kingdom | |
| 5 | 22.33 miles (35.93 km) N | London Luton Airport (LTN) | Luton (near London), England, United Kingdom | |
| 6 | 24.34 miles (39.17 km) SW | Blackbushe Airport (BBS) | Yateley, Hampshire, England, United Kingdom | |
| 7 | 24.66 miles (39.68 km) SW | Farnborough Airport (FAB) | Farnborough, United Kingdom | |
| 8 | 24.75 miles (39.84 km) SE | London Biggin Hill Airport (BQH) | Biggin Hill / London, England, United Kingdom | |
| 9 | 26.37 miles (42.44 km) SSE | Redhill Aerodrome (KRH) | Redhill, Surrey, England, United Kingdom | |
| 10 | 29.41 miles (47.34 km) W | RAF Benson (BEX) | Benson, Oxfordshire, England, United Kingdom | |
| 11 | 29.66 miles (47.74 km) SSE | Gatwick Airport (LGW) | London, England, United Kingdom | |
| 12 | 31.57 miles (50.81 km) SW | RAF Odiham (ODH) | Odiham, United Kingdom | |
| 13 | 36.17 miles (58.21 km) NE | London Stansted Airport (STN) | Essex (near London), England, United Kingdom | |
| 14 | 36.65 miles (58.98 km) SW | Lasham Airfield (QLA) | Lasham, England, United Kingdom | |
| 15 | 36.68 miles (59.02 km) NNW | Milton Keynes Airport (KYN) | Milton Keynes, England, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,871.18 miles (19,104.77 km) SSW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,859.82 miles (19,086.49 km) SE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 3 | 11,837.81 miles (19,051.06 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 4 | 11,828.15 miles (19,035.52 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,815.57 miles (19,015.27 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 11,804.71 miles (18,997.79 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 11,797.07 miles (18,985.49 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 8 | 11,796.47 miles (18,984.54 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 9 | 11,790.50 miles (18,974.92 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 11,767.29 miles (18,937.57 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,765.63 miles (18,934.90 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,750.82 miles (18,911.07 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,746.58 miles (18,904.24 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,743.23 miles (18,898.85 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,722.72 miles (18,865.85 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.79 miles (55.99 km) SSE | Lawrence County Airpark (HTW) | Chesapeake, Ohio / Huntington, West Virginia, United States | |
| 2 | 36.25 miles (58.33 km) SSE | Tri-State Airport (HTS) | Huntington, West Virginia, United States | |
| 3 | 41.94 miles (67.50 km) NE | Ohio University Airport Gordon K. Bush Airport (ATO) | Athens/Albany, Ohio, United States | |
| 4 | 64.90 miles (104.45 km) NW | Wilmington Air Park (ILN) | Wilmington, Ohio, United States | |
| 5 | 67.39 miles (108.45 km) N | Rickenbacker International Airport (LCK) | Columbus, Ohio, United States | |
| 6 | 74.94 miles (120.61 km) ESE | Yeager Airport (CRW) | Charleston, West Virginia, United States | |
| 7 | 80.01 miles (128.77 km) N | Port Columbus International Airport (CMH) | Columbus, Ohio, United States | |
| 8 | 83.15 miles (133.81 km) ENE | Mid-Ohio Valley Regional Airport (PKB) | Parkersburg, West Virginia, United States | |
| 9 | 86.34 miles (138.95 km) WNW | Cincinnati Municipal Airport (LUK) | Cincinnati, Ohio, United States | |
| 10 | 86.46 miles (139.15 km) N | Ohio State University Airport (OSU) | Columbus, Ohio, United States | |
| 11 | 87.10 miles (140.18 km) NW | Springfield–Beckley Municipal Airport (SGH) | Springfield, Ohio, United States | |
| 12 | 90.07 miles (144.96 km) NW | Dayton–Wright Brothers Airport (MGY) | Dayton, Ohio, United States | |
| 13 | 91.75 miles (147.65 km) NNE | Zanesville Municipal Airport (ZZV) | Zanesville, Ohio, United States | |
| 14 | 93.47 miles (150.42 km) NW | Wright-Patterson Air Force Base (FFO) | Dayton, Ohio, United States | |
| 15 | 95.72 miles (154.05 km) WNW | Middletown Regional Airport (MWO) | Middletown, Ohio, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,384.56 miles (18,321.63 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,361.95 miles (18,285.24 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,338.90 miles (18,248.15 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,338.49 miles (18,247.48 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,301.73 miles (18,188.33 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,287.40 miles (18,165.26 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,277.69 miles (18,149.64 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 11,266.80 miles (18,132.11 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 9 | 11,262.96 miles (18,125.94 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 11,243.76 miles (18,095.02 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 11,216.76 miles (18,051.58 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,187.46 miles (18,004.43 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,171.36 miles (17,978.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,164.59 miles (17,967.62 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,129.72 miles (17,911.50 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |