About this route:

A direct, nonstop flight between Columbia County Airport (HCC), Hudson, New York, United States and Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States would travel a Great Circle distance of 2,729 miles (or 4,392 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 Columbia County Airport and Thorne Bay Seaplane Base, 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 Columbia County Airport and Thorne Bay Seaplane Base. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

IATA / ICAO Codes: HCC /
Airport Names:
  1. Columbia County Airport
  2. 1B1
Location: Hudson, New York, United States
GPS Coordinates: 42°17'29"N by 73°42'37"W
Area Served: Hudson, New York
Operator/Owner: County of Columbia
Airport Type: Public
Elevation: 198 feet (60 meters)
# of Runways: 1
View all routes: Routes from HCC
More Information: HCC Maps & Info

Arrival 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

Facts about Columbia County Airport (HCC):

  • In addition to being known as "Columbia County Airport", another name for HCC is "1B1".
  • Because of Columbia County Airport's relatively low elevation of 198 feet, planes can take off or land at Columbia County 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.
  • Columbia County Airport (HCC) currently has only 1 runway.
  • The furthest airport from Columbia County Airport (HCC) is Margaret River Airport (MGV), which is located 11,687 miles (18,809 kilometers) away in Margaret River, Western Australia, Australia.
  • The closest airport to Columbia County Airport (HCC) is Walter J. Koladza Airport (GBR), which is located only 17 miles (28 kilometers) ESE of HCC.
  • Richmor Aviation, a flight school, operates out of Columbia County Airport.

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.
  • 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.
  • Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
  • 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.

Map of Nearest Airports to Columbia County Airport:

List of Nearest Airports to Columbia County Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
117.36 miles (27.95 km) ESEWalter J. Koladza Airport (GBR)Great Barrington, Massachusetts, United StatesView Walter J. Koladza Airport on a map Set GBR as origin Airport Set GBR as destination Airport Get more information about Walter J. Koladza Airport
223.28 miles (37.47 km) ENEPittsfield Municipal Airport (PSF)Pittsfield, Massachusetts, United StatesView Pittsfield Municipal Airport on a map Set PSF as origin Airport Set PSF as destination Airport Get more information about Pittsfield Municipal Airport
331.97 miles (51.45 km) NAlbany International Airport (ALB)Albany, New York, United StatesView Albany International Airport on a map Set ALB as origin Airport Set ALB as destination Airport Get more information about Albany International Airport
440.33 miles (64.91 km) NNWSchenectady County Airport (SCH)Schenectady, New York, United StatesView Schenectady County Airport on a map Set SCH as origin Airport Set SCH as destination Airport Get more information about Schenectady County Airport
546.79 miles (75.30 km) SDutchess County Airport (POU)Poughkeepsie, New York, United StatesView Dutchess County Airport on a map Set POU as origin Airport Set POU as destination Airport Get more information about Dutchess County Airport
651.71 miles (83.22 km) EWestfield-Barnes Regional Airport (BAF)Westfield / Springfield, Massachusetts, United StatesView Westfield-Barnes Regional Airport on a map Set BAF as origin Airport Set BAF as destination Airport Get more information about Westfield-Barnes Regional Airport
757.99 miles (93.32 km) ESEBradley International Airport (BDL)Windsor Locks (near Hartford), Connecticut, United StatesView Bradley International Airport on a map Set BDL as origin Airport Set BDL as destination Airport Get more information about Bradley International Airport
858.05 miles (93.42 km) SSWStewart International Airport (SWF)Newburgh, New York, United StatesView Stewart International Airport on a map Set SWF as origin Airport Set SWF as destination Airport Get more information about Stewart International Airport
960.51 miles (97.37 km) EWestover Air Reserve Base (CEF)Springfield/Chicopee, Massachusetts, United StatesView Westover Air Reserve Base on a map Set CEF as origin Airport Set CEF as destination Airport Get more information about Westover Air Reserve Base
1061.06 miles (98.26 km) SSWOrange County Airport (MGJ)Montgomery, New York, United StatesView Orange County Airport on a map Set MGJ as origin Airport Set MGJ as destination Airport Get more information about Orange County Airport
1163.47 miles (102.15 km) SSEWaterbury-Oxford Airport (OXC)Oxford, Connecticut, United StatesView Waterbury-Oxford Airport on a map Set OXC as origin Airport Set OXC as destination Airport Get more information about Waterbury-Oxford Airport
1264.56 miles (103.89 km) WNWCooperstown-Westville Airport (COP)Cooperstown, New York, United StatesView Cooperstown-Westville Airport on a map Set COP as origin Airport Set COP as destination Airport Get more information about Cooperstown-Westville Airport
1364.62 miles (104.00 km) SDanbury Municipal Airport (DXR)Danbury, Connecticut, United StatesView Danbury Municipal Airport on a map Set DXR as origin Airport Set DXR as destination Airport Get more information about Danbury Municipal Airport
1466.59 miles (107.17 km) SEHartford-Brainard Airport (HFD)Hartford, Connecticut, United StatesView Hartford-Brainard Airport on a map Set HFD as origin Airport Set HFD as destination Airport Get more information about Hartford-Brainard Airport
1566.83 miles (107.55 km) ESERentschler Heliport (EHT)East Hartford, Connecticut, United StatesView Rentschler Heliport on a map Set EHT as origin Airport Set EHT as destination Airport Get more information about Rentschler Heliport

Map of Furthest Airports from Columbia County Airport:

List of Furthest Airports from Columbia County Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,687.25 miles (18,808.75 km) SWMargaret River Airport (MGV)Margaret River, Western Australia, AustraliaView Margaret River Airport on a map Set MGV as origin Airport Set MGV as destination Airport Get more information about Margaret River Airport
211,667.79 miles (18,777.44 km) SWManjimup Airport (MJP)Manjimup, Western Australia, AustraliaView Manjimup Airport on a map Set MJP as origin Airport Set MJP as destination Airport Get more information about Manjimup Airport
311,663.47 miles (18,770.49 km) SWBusselton Regional Airport (BQB)Busselton, Western Australia, AustraliaView Busselton Regional Airport on a map Set BQB as origin Airport Set BQB as destination Airport Get more information about Busselton Regional Airport
411,636.82 miles (18,727.60 km) SWBunbury Airport (BUY)Bunbury, Western Australia, AustraliaView Bunbury Airport on a map Set BUY as origin Airport Set BUY as destination Airport Get more information about Bunbury Airport
511,635.29 miles (18,725.14 km) SWAlbany Airport (ALH)Albany, Western Australia, AustraliaView Albany Airport on a map Set ALH as origin Airport Set ALH as destination Airport Get more information about Albany Airport
611,580.72 miles (18,637.32 km) SWKatanning Airport (KNI)Katanning, Western Australia, AustraliaView Katanning Airport on a map Set KNI as origin Airport Set KNI as destination Airport Get more information about Katanning Airport
711,563.67 miles (18,609.87 km) SWRottnest Airport (RTS)Rottnest Island, Western Australia, AustraliaView Rottnest Airport on a map Set RTS as origin Airport Set RTS as destination Airport Get more information about Rottnest Airport
811,557.87 miles (18,600.55 km) SWJandakot Airport (JAD)Jandakot, Western Australia, AustraliaView Jandakot Airport on a map Set JAD as origin Airport Set JAD as destination Airport Get more information about Jandakot Airport
911,546.05 miles (18,581.53 km) SWPerth Airport (PER)Perth, Western Australia, AustraliaView Perth Airport on a map Set PER as origin Airport Set PER as destination Airport Get more information about Perth Airport
1011,476.66 miles (18,469.84 km) SSWJurien Bay Airport (JUR)Jurien Bay, Western Australia, AustraliaView Jurien Bay Airport on a map Set JUR as origin Airport Set JUR as destination Airport Get more information about Jurien Bay Airport
1111,405.47 miles (18,355.28 km) WSWEsperance Airport (EPR)Esperance, AustraliaView Esperance Airport on a map Set EPR as origin Airport Set EPR as destination Airport Get more information about Esperance Airport
1211,392.47 miles (18,334.36 km) SSWGeraldton Airport (GET)Geraldton, Western Australia, AustraliaView Geraldton Airport on a map Set GET as origin Airport Set GET as destination Airport Get more information about Geraldton Airport
1311,382.15 miles (18,317.75 km) SWMorawa Airport (MWB)Morawa, Western Australia, AustraliaView Morawa Airport on a map Set MWB as origin Airport Set MWB as destination Airport Get more information about Morawa Airport
1411,351.36 miles (18,268.20 km) SSWMullewa Airport (MXU)Mullewa, Western Australia, AustraliaView Mullewa Airport on a map Set MXU as origin Airport Set MXU as destination Airport Get more information about Mullewa Airport
1511,333.05 miles (18,238.73 km) SSWKalbarri Airport (KAX)Kalbarri, Western Australia, AustraliaView Kalbarri Airport on a map Set KAX as origin Airport Set KAX as destination Airport Get more information about Kalbarri Airport

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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination Airport Set MFC as destination Airport Get more information about Mafeteng Airport