About this route:

A direct, nonstop flight between Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States and RAF Northolt (NHT), Ruislip, England, United Kingdom would travel a Great Circle distance of 4,538 miles (or 7,303 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 Thorne Bay Seaplane Base and RAF Northolt, 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 Thorne Bay Seaplane Base and RAF Northolt. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

IATA / ICAO Codes: KTB /
Airport Name: Thorne Bay Seaplane Base
Location: Thorne Bay, Alaska, United States
GPS Coordinates: 55°41'17"N by 132°32'12"W
Area Served: Thorne Bay, Alaska
Operator/Owner: State of Alaska DOT&PF - Southeast Region
Airport Type: Public
Elevation: 0 feet (0 meters)
# of Runways: 1
View all routes: Routes from KTB
More Information: KTB 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 Thorne Bay Seaplane Base (KTB):

  • Because of Thorne Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Thorne Bay Seaplane Base 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.
  • Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
  • The closest airport to Thorne Bay Seaplane Base (KTB) is Hollis Clark Bay Seaplane Base (HYL), which is located only 14 miles (23 kilometers) SSW of KTB.
  • The furthest airport from Thorne Bay Seaplane Base (KTB) is Port Alfred Airport (AFD), which is located 10,618 miles (17,088 kilometers) away in Port Alfred, South Africa.
  • As per Federal Aviation Administration records, the airport had 2,640 passenger boardings in calendar year 2008, 2,283 enplanements in 2009, and 2,608 in 2010.

Facts about RAF Northolt (NHT):

  • After the Battle of Britain, the station remained a base for daytime fighter operations, with No.
  • The outbreak of the First World War necessitated a new aerodrome for the Royal Flying Corps.
  • In August 1996, a Spanish Learjet operated by Mar Aviation overshot runway 25 and collided with a van heading eastward on the A40 Western Avenue.
  • Construction of the new aerodrome, to be named "RFC Military School, Ruislip", began in January 1915.
  • 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.
  • The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
  • The overnight base of the London Air Ambulance moved to RAF Northolt from Denham Aerodrome in February 2013.

Map of Nearest Airports to Thorne Bay Seaplane Base:

List of Nearest Airports to Thorne Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
114.06 miles (22.63 km) SSWHollis Clark Bay Seaplane Base (HYL)Hollis, Alaska, United StatesView Hollis Clark Bay Seaplane Base on a map Set HYL as origin Airport Set HYL as destination Airport Get more information about Hollis Clark Bay Seaplane Base
222.34 miles (35.96 km) WSWKlawock Airport (KLW)Klawock, Alaska, United StatesView Klawock Airport on a map Set KLW as origin Airport Set KLW as destination Airport Get more information about Klawock Airport
325.34 miles (40.79 km) NNWCoffman Cove Seaplane Base (KCC)Coffman Cove, Alaska, United StatesView Coffman Cove Seaplane Base on a map Set KCC as origin Airport Set KCC as destination Airport Get more information about Coffman Cove Seaplane Base
427.90 miles (44.90 km) WSWCraig Seaplane Base (CGA)Craig, Alaska, United StatesView Craig Seaplane Base on a map Set CGA as origin Airport Set CGA as destination Airport Get more information about Craig Seaplane Base
529.09 miles (46.82 km) WNWNaukati Bay Seaplane Base (WNC)Tuxekan Island, Alaska, United StatesView Naukati Bay Seaplane Base on a map Set WNC as origin Airport Set WNC as destination Airport Get more information about Naukati Bay Seaplane Base
635.17 miles (56.60 km) WNWTokeen Seaplane Base (TKI)Tokeen, Alaska, United StatesView Tokeen Seaplane Base on a map Set TKI as origin Airport Set TKI as destination Airport Get more information about Tokeen Seaplane Base
735.19 miles (56.63 km) SSWHydaburg Seaplane Base (HYG)Hydaburg, Alaska, United StatesView Hydaburg Seaplane Base on a map Set HYG as origin Airport Set HYG as destination Airport Get more information about Hydaburg Seaplane Base
837.27 miles (59.99 km) NWNorth Whale Seaplane Base (WWP)North Whale Pass, Alaska, United StatesView North Whale Seaplane Base on a map Set WWP as origin Airport Set WWP as destination Airport Get more information about North Whale Seaplane Base
938.70 miles (62.28 km) SWWaterfall Seaplane Base (KWF)Waterfall, Alaska, United StatesView Waterfall Seaplane Base on a map Set KWF as origin Airport Set KWF as destination Airport Get more information about Waterfall Seaplane Base
1039.68 miles (63.87 km) SEKetchikan International Airport (KTN)Ketchikan, Alaska, United StatesView Ketchikan International Airport on a map Set KTN as origin Airport Set KTN as destination Airport Get more information about Ketchikan International Airport
1141.60 miles (66.95 km) SEKetchikan Harbor Seaplane Base (WFB)Ketchikan, Alaska, United StatesView Ketchikan Harbor Seaplane Base on a map Set WFB as origin Airport Set WFB as destination Airport Get more information about Ketchikan Harbor Seaplane Base
1253.80 miles (86.58 km) SEMetlakatla Seaplane Base (MTM)Metlakatla, Annette Island, Alaska, United StatesView Metlakatla Seaplane Base on a map Set MTM as origin Airport Set MTM as destination Airport Get more information about Metlakatla Seaplane Base
1355.40 miles (89.16 km) NWrangell Airport (WRG)Wrangell, Alaska, United StatesView Wrangell Airport on a map Set WRG as origin Airport Set WRG as destination Airport Get more information about Wrangell Airport
1458.51 miles (94.17 km) SEAnnette Island Airport (ANN)Annette Island, Alaska, United StatesView Annette Island Airport on a map Set ANN as origin Airport Set ANN as destination Airport Get more information about Annette Island Airport
1560.66 miles (97.62 km) NWPort Protection Seaplane Base (PPV)Port Protection, Alaska, United StatesView Port Protection Seaplane Base on a map Set PPV as origin Airport Set PPV as destination Airport Get more information about Port Protection Seaplane Base

Map of Furthest Airports from Thorne Bay Seaplane Base:

List of Furthest Airports from Thorne Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,618.12 miles (17,088.17 km) SEPort Alfred Airport (AFD)Port Alfred, South AfricaView Port Alfred Airport on a map Set AFD as origin Airport Set AFD as destination Airport Get more information about Port Alfred Airport
210,611.06 miles (17,076.80 km) SEPort Elizabeth International Airport (PLZ)Port Elizabeth, South AfricaView Port Elizabeth International Airport on a map Set PLZ as origin Airport Set PLZ as destination Airport Get more information about Port Elizabeth International Airport
310,609.57 miles (17,074.40 km) SEEast London Airport (ELS)East London, South AfricaView East London Airport on a map Set ELS as origin Airport Set ELS as destination Airport Get more information about East London Airport
410,536.12 miles (16,956.21 km) SEMthatha Airport (UTT)Mthatha, South AfricaView Mthatha Airport on a map Set UTT as origin Airport Set UTT as destination Airport Get more information about Mthatha Airport
510,529.16 miles (16,945.00 km) SSEMargate Airport (MGH)Margate, KwaZulu-Natal, South AfricaView Margate Airport on a map Set MGH as origin Airport Set MGH as destination Airport Get more information about Margate Airport
610,521.15 miles (16,932.11 km) SEGeorge Airport (GRJ)George, South AfricaView George Airport on a map Set GRJ as origin Airport Set GRJ as destination Airport Get more information about George Airport
710,464.33 miles (16,840.66 km) SSEKing Shaka International (DUR)Durban, KwaZulu-Natal, South AfricaView King Shaka International on a map Set DUR as origin Airport Set DUR as destination Airport Get more information about King Shaka International
810,451.86 miles (16,820.59 km) SSEPietermaritzburg Airport (PZB)Pietermaritzburg, South AfricaView Pietermaritzburg Airport on a map Set PZB as origin Airport Set PZB as destination Airport Get more information about Pietermaritzburg Airport
910,430.04 miles (16,785.47 km) SELebakeng Airport (LEF)Lebakeng, LesothoView Lebakeng Airport on a map Set LEF as origin Airport Set LEF as destination Airport Get more information about Lebakeng Airport
1010,425.95 miles (16,778.90 km) SSERichards Bay Airport (RCB)Richards Bay, KwaZulu-Natal, South AfricaView Richards Bay Airport on a map Set RCB as origin Airport Set RCB as destination Airport Get more information about Richards Bay Airport
1110,414.65 miles (16,760.71 km) SELesobeng Airport (LES)Lesobeng, LesothoView Lesobeng Airport on a map Set LES as origin Airport Set LES as destination Airport Get more information about Lesobeng Airport
1210,413.17 miles (16,758.33 km) SESemonkong Airport (SOK)Semonkong, LesothoView Semonkong Airport on a map Set SOK as origin Airport Set SOK as destination Airport Get more information about Semonkong Airport
1310,403.14 miles (16,742.18 km) SECape Town International Airport (CPT)Cape Town, South AfricaView Cape Town International Airport on a map Set CPT as origin Airport Set CPT as destination Airport Get more information about Cape Town International Airport
1410,400.12 miles (16,737.33 km) SEMokhotlong Airport (MKH)Mokhotlong, LesothoView Mokhotlong Airport on a map Set MKH as origin Airport Set MKH as destination Airport Get more information about Mokhotlong Airport
1510,391.75 miles (16,723.87 km) SEMafeteng Airport (MFC)Mafeteng, LesothoView Mafeteng Airport on a map Set MFC as origin Airport Set MFC as destination Airport Get more information about Mafeteng Airport

Map of Nearest Airports to RAF Northolt:

List of Nearest Airports to RAF Northolt:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
15.54 miles (8.91 km) SSWLondon Heathrow Airport (LHR)London, England, United KingdomView London Heathrow Airport on a map Set LHR as destination Airport Set LHR as destination Airport Get more information about London Heathrow Airport
216.36 miles (26.33 km) NNEHatfield Aerodrome (HTF)Hatfield, Hertfordshire, England, United KingdomView Hatfield Aerodrome on a map Set HTF as destination Airport Set HTF as destination Airport Get more information about Hatfield Aerodrome
318.69 miles (30.08 km) WNWRAF High Wycombe (HYC)High Wycombe, Buckinghamshire, England, United KingdomView RAF High Wycombe on a map Set HYC as destination Airport Set HYC as destination Airport Get more information about RAF High Wycombe
420.62 miles (33.19 km) ELondon City Airport (LCY)London, England, United KingdomView London City Airport on a map Set LCY as destination Airport Set LCY as destination Airport Get more information about London City Airport
522.33 miles (35.93 km) NLondon Luton Airport (LTN)Luton (near London), England, United KingdomView London Luton Airport on a map Set LTN as destination Airport Set LTN as destination Airport Get more information about London Luton Airport
624.34 miles (39.17 km) SWBlackbushe Airport (BBS)Yateley, Hampshire, England, United KingdomView Blackbushe Airport on a map Set BBS as destination Airport Set BBS as destination Airport Get more information about Blackbushe Airport
724.66 miles (39.68 km) SWFarnborough Airport (FAB)Farnborough, United KingdomView Farnborough Airport on a map Set FAB as destination Airport Set FAB as destination Airport Get more information about Farnborough Airport
824.75 miles (39.84 km) SELondon Biggin Hill Airport (BQH)Biggin Hill / London, England, United KingdomView London Biggin Hill Airport on a map Set BQH as destination Airport Set BQH as destination Airport Get more information about London Biggin Hill Airport
926.37 miles (42.44 km) SSERedhill Aerodrome (KRH)Redhill, Surrey, England, United KingdomView Redhill Aerodrome on a map Set KRH as destination Airport Set KRH as destination Airport Get more information about Redhill Aerodrome
1029.41 miles (47.34 km) WRAF Benson (BEX)Benson, Oxfordshire, England, United KingdomView RAF Benson on a map Set BEX as destination Airport Set BEX as destination Airport Get more information about RAF Benson
1129.66 miles (47.74 km) SSEGatwick Airport (LGW)London, England, United KingdomView Gatwick Airport on a map Set LGW as destination Airport Set LGW as destination Airport Get more information about Gatwick Airport
1231.57 miles (50.81 km) SWRAF Odiham (ODH)Odiham, United KingdomView RAF Odiham on a map Set ODH as destination Airport Set ODH as destination Airport Get more information about RAF Odiham
1336.17 miles (58.21 km) NELondon Stansted Airport (STN)Essex (near London), England, United KingdomView London Stansted Airport on a map Set STN as destination Airport Set STN as destination Airport Get more information about London Stansted Airport
1436.65 miles (58.98 km) SWLasham Airfield (QLA)Lasham, England, United KingdomView Lasham Airfield on a map Set QLA as destination Airport Set QLA as destination Airport Get more information about Lasham Airfield
1536.68 miles (59.02 km) NNWMilton Keynes Airport (KYN)Milton Keynes, England, United KingdomView Milton Keynes Airport on a map Set KYN as destination Airport Set KYN as destination Airport Get more information about Milton Keynes Airport

Map of Furthest Airports from RAF Northolt:

List of Furthest Airports from RAF Northolt:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,871.18 miles (19,104.77 km) SSWChatham Islands (CHT)Waitangi, Chatham Islands, New ZealandView Chatham Islands on a map Set CHT as destination Airport Set CHT as destination Airport Get more information about Chatham Islands
211,859.82 miles (19,086.49 km) SEDunedin International Airport (DUD)Dunedin, Otago, New ZealandView Dunedin International Airport on a map Set DUD as destination Airport Set DUD as destination Airport Get more information about Dunedin International Airport
311,837.81 miles (19,051.06 km) SEOamaru Airport (OAM)Oamaru, North Otago, New ZealandView Oamaru Airport on a map Set OAM as destination Airport Set OAM as destination Airport Get more information about Oamaru Airport
411,828.15 miles (19,035.52 km) ESERyan's Creek Aerodrome (SZS)Stewart Island, New ZealandView Ryan's Creek Aerodrome on a map Set SZS as destination Airport Set SZS as destination Airport Get more information about Ryan's Creek Aerodrome
511,815.57 miles (19,015.27 km) ESEInvercargill Airport (IVC)Invercargill, New ZealandView Invercargill Airport on a map Set IVC as destination Airport Set IVC as destination Airport Get more information about Invercargill Airport
611,804.71 miles (18,997.79 km) SERichard Pearse Airport (Timaru Airport) (TIU)Timaru, New ZealandView Richard Pearse Airport (Timaru Airport) on a map Set TIU as destination Airport Set TIU as destination Airport Get more information about Richard Pearse Airport (Timaru Airport)
711,797.07 miles (18,985.49 km) SEAshburton Aerodrome (ASG)Ashburton, New ZealandView Ashburton Aerodrome on a map Set ASG as destination Airport Set ASG as destination Airport Get more information about Ashburton Aerodrome
811,796.47 miles (18,984.54 km) SEAlexandra Aerodrome (ALR)Alexandra, New ZealandView Alexandra Aerodrome on a map Set ALR as destination Airport Set ALR as destination Airport Get more information about Alexandra Aerodrome
911,790.50 miles (18,974.92 km) SSEChristchurch International Airport (CHC)Christchurch, New ZealandView Christchurch International Airport on a map Set CHC as destination Airport Set CHC as destination Airport Get more information about Christchurch International Airport
1011,767.29 miles (18,937.57 km) SEWanaka Airport (WKA)Wanaka, New ZealandView Wanaka Airport on a map Set WKA as destination Airport Set WKA as destination Airport Get more information about Wanaka Airport
1111,765.63 miles (18,934.90 km) SEQueenstown Airport (ZQN)Queenstown, New ZealandView Queenstown Airport on a map Set ZQN as destination Airport Set ZQN as destination Airport Get more information about Queenstown Airport
1211,750.82 miles (18,911.07 km) SEGlentanner Aerodrome (GTN)Mount Cook, New ZealandView Glentanner Aerodrome on a map Set GTN as destination Airport Set GTN as destination Airport Get more information about Glentanner Aerodrome
1311,746.58 miles (18,904.24 km) SSEKaikoura Aerodrome (KBZ)Kaikoura, New ZealandView Kaikoura Aerodrome on a map Set KBZ as destination Airport Set KBZ as destination Airport Get more information about Kaikoura Aerodrome
1411,743.23 miles (18,898.85 km) SEMount Cook Airport (MON)Mount Cook, New ZealandView Mount Cook Airport on a map Set MON as destination Airport Set MON as destination Airport Get more information about Mount Cook Airport
1511,722.72 miles (18,865.85 km) SEFox Glacier Aerodrome (FGL)Fox Glacier, New ZealandView Fox Glacier Aerodrome on a map Set FGL as destination Airport Set FGL as destination Airport Get more information about Fox Glacier Aerodrome