Nonstop flight route between Hatfield, Hertfordshire, England, United Kingdom and Sidney, Montana, United States:
Departure Airport:
(51°45'56"N by 0°15'2"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from HTF to SDY:
4,233.28 miles (6,812.79 km)
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Jump to:
- About this route
- HTF Airport Information
- SDY Airport Information
- Facts about HTF
- Facts about SDY
- Map of Nearest Airports to HTF
- List of Nearest Airports to HTF
- Map of Furthest Airports from HTF
- List of Furthest Airports from HTF
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Hatfield Aerodrome (HTF), Hatfield, Hertfordshire, England, United Kingdom and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 4,233 miles (or 6,813 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 Hatfield Aerodrome and Sidney-Richland Municipal 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 Hatfield Aerodrome and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | HTF / EGTH |
| Airport Name: | Hatfield Aerodrome |
| Location: | Hatfield, Hertfordshire, England, United Kingdom |
| GPS Coordinates: | 51°45'56"N by 0°15'2"W |
| Operator/Owner: | de Havilland Aircraft Company (1930 - 1960) Hawker Siddeley (1960 - 1977) British Aerospace (1977 - closure) |
| Airport Type: | Private |
| Elevation: | 254 feet (77 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from HTF |
| More Information: | HTF Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SDY / KSDY |
| Airport Name: | Sidney-Richland Municipal Airport |
| Location: | Sidney, Montana, United States |
| GPS Coordinates: | 47°42'24"N by 104°11'32"W |
| Area Served: | Sidney, Montana |
| Operator/Owner: | Sidney Richland Airport Authority |
| Airport Type: | Public |
| Elevation: | 1985 feet (605 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SDY |
| More Information: | SDY Maps & Info |
Facts about Hatfield Aerodrome (HTF):
- Geoffrey de Havilland, pioneering aircraft designer and founder of the de Havilland Aircraft Company purchased some farmland close to Hatfield as his existing site at Stag Lane, Edgware was being encroached upon by expanding housing developments in the London suburbs.
- The airfield closed but was later used as a film set for Saving Private Ryan and the television series Band of Brothers.
- Because of Hatfield Aerodrome's relatively low elevation of 254 feet, planes can take off or land at Hatfield Aerodrome 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 Hatfield Aerodrome History Trail was officially opened on 24 November 2010.
- The closest airport to Hatfield Aerodrome (HTF) is London Luton Airport (LTN), which is located only 9 miles (15 kilometers) NNW of HTF.
- The furthest airport from Hatfield Aerodrome (HTF) is Chatham Islands (CHT), which is located 11,860 miles (19,086 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- De Havilland had been developing and manufacturing propellers and piston engines in addition to airframes.
- Hatfield Aerodrome (HTF) has 2 runways.
Facts about Sidney-Richland Municipal Airport (SDY):
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9.04 miles (14.55 km) NNW | London Luton Airport (LTN) | Luton (near London), England, United Kingdom |     |
| 2 | 16.36 miles (26.33 km) SSW | RAF Northolt (NHT) | Ruislip, England, United Kingdom | |
| 3 | 21.87 miles (35.20 km) SSW | London Heathrow Airport (LHR) | London, England, United Kingdom | |
| 4 | 22.28 miles (35.86 km) SE | London City Airport (LCY) | London, England, United Kingdom | |
| 5 | 22.32 miles (35.92 km) ENE | London Stansted Airport (STN) | Essex (near London), England, United Kingdom | |
| 6 | 24.30 miles (39.10 km) WSW | RAF High Wycombe (HYC) | High Wycombe, Buckinghamshire, England, United Kingdom | |
| 7 | 27.75 miles (44.66 km) NE | Duxford Aerodrome (QFO) | Duxford, England, United Kingdom | |
| 8 | 28.81 miles (46.36 km) NW | Milton Keynes Airport (KYN) | Milton Keynes, England, United Kingdom | |
| 9 | 32.43 miles (52.19 km) SSE | London Biggin Hill Airport (BQH) | Biggin Hill / London, England, United Kingdom | |
| 10 | 35.34 miles (56.88 km) NNE | Cambridge International Airport (CBG) | Cambridge, England, United Kingdom | |
| 11 | 35.34 miles (56.88 km) ENE | MDPGA Wethersfield (WXF) | Braintree, England, United Kingdom | |
| 12 | 37.64 miles (60.57 km) WSW | RAF Benson (BEX) | Benson, Oxfordshire, England, United Kingdom | |
| 13 | 38.46 miles (61.89 km) S | Redhill Aerodrome (KRH) | Redhill, Surrey, England, United Kingdom | |
| 14 | 39.87 miles (64.17 km) SW | Blackbushe Airport (BBS) | Yateley, Hampshire, England, United Kingdom | |
| 15 | 40.76 miles (65.60 km) SW | Farnborough Airport (FAB) | Farnborough, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,859.79 miles (19,086.43 km) SSW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,845.00 miles (19,062.63 km) SE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 3 | 11,822.22 miles (19,025.98 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 4 | 11,814.95 miles (19,014.28 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,801.88 miles (18,993.23 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 11,788.88 miles (18,972.32 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 11,781.59 miles (18,960.59 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 8 | 11,781.02 miles (18,959.67 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 9 | 11,774.26 miles (18,948.79 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 11,752.23 miles (18,913.34 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,750.89 miles (18,911.18 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,735.19 miles (18,885.91 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,730.22 miles (18,877.91 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,727.56 miles (18,873.63 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,707.00 miles (18,840.55 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.33 miles (66.52 km) NE | Sloulin Field International Airport (ISN) | Williston, North Dakota, United States | |
| 2 | 48.66 miles (78.31 km) SW | Dawson Community Airport (GDV) | Glendive, Montana, United States | |
| 3 | 69.41 miles (111.70 km) WNW | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 4 | 76.29 miles (122.77 km) NNW | Sher-Wood Airport (PWD) | Plentywood, Montana, United States | |
| 5 | 90.57 miles (145.76 km) SE | Dickinson Theodore Roosevelt Regional Airport (DIK) | Dickinson, North Dakota, United States | |
| 6 | 111.04 miles (178.70 km) SSE | Bowman Municipal Airport (BWM) | Bowman, North Dakota, United States | |
| 7 | 117.38 miles (188.91 km) WNW | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 8 | 118.10 miles (190.06 km) NNE | Estevan Regional Aerodrome (YEN) | Estevan, Saskatchewan, Canada | |
| 9 | 118.99 miles (191.50 km) SW | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 10 | 131.42 miles (211.49 km) W | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 11 | 139.74 miles (224.89 km) ENE | Minot Air Force Base (MIB) | Minot, North Dakota, United States | |
| 12 | 140.05 miles (225.38 km) ENE | Minot International Airport (MOT) | Minot, North Dakota, United States | |
| 13 | 174.07 miles (280.14 km) ESE | Bismarck Municipal Airport (BIS) | Bismarck, North Dakota, United States | |
| 14 | 189.51 miles (304.99 km) N | Regina International Airport (YQR) | Regina, Saskatchewan, Canada | |
| 15 | 191.53 miles (308.24 km) NNW | CFB Moose Jaw (YMJ) | Moose Jaw, Saskatchewan, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,383.49 miles (16,710.57 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,297.57 miles (16,572.29 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,290.39 miles (16,560.74 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,266.41 miles (16,522.14 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,218.50 miles (16,445.05 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,203.17 miles (16,420.36 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,179.29 miles (16,381.94 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,169.42 miles (16,366.06 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 9 | 10,153.64 miles (16,340.65 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 10 | 10,120.11 miles (16,286.69 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 10,113.85 miles (16,276.63 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 12 | 10,100.83 miles (16,255.67 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 13 | 10,089.33 miles (16,237.15 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 10,078.56 miles (16,219.83 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,076.48 miles (16,216.49 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |