About this route:

A direct, nonstop flight between Grand Forks International Airport (GFK), Grand Forks, North Dakota, United States and Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States would travel a Great Circle distance of 1,582 miles (or 2,545 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 Grand Forks International Airport and Thorne Bay Seaplane Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

IATA / ICAO Codes: GFK / KGFK
Airport Name: Grand Forks International Airport
Location: Grand Forks, North Dakota, United States
GPS Coordinates: 47°56'57"N by 97°10'33"W
Operator/Owner: Grand Forks Regional Airport Authority
Airport Type: Public
Elevation: 845 feet (258 meters)
# of Runways: 4
View all routes: Routes from GFK
More Information: GFK 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 Grand Forks International Airport (GFK):

  • Because of Grand Forks International Airport's relatively low elevation of 845 feet, planes can take off or land at Grand Forks International 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 new passenger terminal, designed by JLG Architects, is a two story building, with Delta and Allegiant ticketing counters, baggage claim carousel, and several rental car agencies.
  • One option was to keep the terminal as is.
  • On October 3, 2012, United Airlines started flights between Denver, CO and Grand Forks, but on September 10, 2013 they announced they would end service on December 3, 2013 citing low loads.
  • The closest airport to Grand Forks International Airport (GFK) is Grand Forks Air Force Base (RDR), which is located only 10 miles (17 kilometers) W of GFK.
  • The now closed original passenger terminal at GFK was built in 1964.
  • The furthest airport from Grand Forks International Airport (GFK) is Margaret River Airport (MGV), which is located 10,514 miles (16,921 kilometers) away in Margaret River, Western Australia, Australia.
  • Due to the increased amount of general aviation traffic, primarily from the UND Aerospace flight training school, a fourth runway has been completed on the southeast side of the airport.
  • Grand Forks International Airport is a public airport five miles northwest of Grand Forks, in Grand Forks County, North Dakota.
  • Grand Forks International Airport (GFK) has 4 runways.

Facts about Thorne Bay Seaplane Base (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.
  • 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.
  • 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 has one seaplane landing area designated NW/SE with a water surface measuring 5,000 by 2,000 feet.
  • Thorne Bay Seaplane Base (KTB) currently has only 1 runway.

Map of Nearest Airports to Grand Forks International Airport:

List of Nearest Airports to Grand Forks International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110.44 miles (16.81 km) WGrand Forks Air Force Base (RDR)Grand Forks, North Dakota, United StatesView Grand Forks Air Force Base on a map Set RDR as origin Airport Set RDR as destination Airport Get more information about Grand Forks Air Force Base
226.75 miles (43.06 km) ESECrookston Municipal Airport (CKN)Crookston, Minnesota, United StatesView Crookston Municipal Airport on a map Set CKN as origin Airport Set CKN as destination Airport Get more information about Crookston Municipal Airport
346.51 miles (74.86 km) EThief River Falls Regional Airport (TVF)Thief River Falls, Minnesota, United StatesView Thief River Falls Regional Airport on a map Set TVF as origin Airport Set TVF as destination Airport Get more information about Thief River Falls Regional Airport
468.70 miles (110.56 km) NPembina Municipal Airport (PMB)Pembina, North Dakota, United StatesView Pembina Municipal Airport on a map Set PMB as origin Airport Set PMB as destination Airport Get more information about Pembina Municipal Airport
573.04 miles (117.54 km) SSEHector International Airport (FAR)Fargo, North Dakota, United StatesView Hector International Airport on a map Set FAR as origin Airport Set FAR as destination Airport Get more information about Hector International Airport
680.84 miles (130.11 km) WDevils Lake Regional Airport (DVL)Devils Lake, North Dakota, United StatesView Devils Lake Regional Airport on a map Set DVL as origin Airport Set DVL as destination Airport Get more information about Devils Lake Regional Airport
798.38 miles (158.33 km) SEDetroit Lakes Airport (DTL)Detroit Lakes, Minnesota, United StatesView Detroit Lakes Airport on a map Set DTL as origin Airport Set DTL as destination Airport Get more information about Detroit Lakes Airport
899.44 miles (160.04 km) SWJamestown Regional Airport (JMS)Jamestown, North Dakota, United StatesView Jamestown Regional Airport on a map Set JMS as origin Airport Set JMS as destination Airport Get more information about Jamestown Regional Airport
9108.24 miles (174.20 km) NEWarroad International Memorial Airport (RRT)Warroad, Minnesota, United StatesView Warroad International Memorial Airport on a map Set RRT as origin Airport Set RRT as destination Airport Get more information about Warroad International Memorial Airport
10108.48 miles (174.57 km) ESEBemidji Regional Airport (BJI)Bemidji, Minnesota, United StatesView Bemidji Regional Airport on a map Set BJI as origin Airport Set BJI as destination Airport Get more information about Bemidji Regional Airport
11120.80 miles (194.41 km) SSEHarry Stern Airport (WAH)Wahpeton, North Dakota, United StatesView Harry Stern Airport on a map Set WAH as origin Airport Set WAH as destination Airport Get more information about Harry Stern Airport
12124.61 miles (200.53 km) SSEFergus Falls Municipal Airport (FFM)Fergus Falls, Minnesota, United StatesView Fergus Falls Municipal Airport on a map Set FFM as origin Airport Set FFM as destination Airport Get more information about Fergus Falls Municipal Airport
13129.47 miles (208.36 km) ENEBaudette International Airport (BDE)Baudette, Minnesota, United StatesView Baudette International Airport on a map Set BDE as origin Airport Set BDE as destination Airport Get more information about Baudette International Airport
14135.51 miles (218.08 km) NWinnipeg James Armstrong Richardson International Airport (YWG)Winnipeg, Manitoba, CanadaView Winnipeg James Armstrong Richardson International Airport on a map Set YWG as origin Airport Set YWG as destination Airport Get more information about Winnipeg James Armstrong Richardson International Airport
15143.90 miles (231.59 km) NNWPortage la Prairie/Southport Airport (YPG)Portage la Prairie, Manitoba, CanadaView Portage la Prairie/Southport Airport on a map Set YPG as origin Airport Set YPG as destination Airport Get more information about Portage la Prairie/Southport Airport

Map of Furthest Airports from Grand Forks International Airport:

List of Furthest Airports from Grand Forks International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,514.00 miles (16,920.60 km) WSWMargaret 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
210,490.01 miles (16,881.99 km) WSWBusselton 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
310,482.83 miles (16,870.43 km) WSWManjimup 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
410,464.03 miles (16,840.19 km) WSWBunbury 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
510,437.32 miles (16,797.20 km) WSWAlbany 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
610,407.24 miles (16,748.79 km) WSWRottnest 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
710,396.68 miles (16,731.79 km) WSWJandakot 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
810,390.85 miles (16,722.41 km) WSWKatanning 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
910,385.65 miles (16,714.05 km) WSWPerth 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
1010,346.75 miles (16,651.44 km) WSWJurien 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
1110,286.61 miles (16,554.65 km) WSWGeraldton 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
1210,251.85 miles (16,498.71 km) WSWMorawa 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
1310,248.69 miles (16,493.62 km) WSWKalbarri 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
1410,236.73 miles (16,474.37 km) WSWMullewa 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
1510,205.75 miles (16,424.51 km) SESir Gaëtan Duval Airport (RRG)Rodrigues Island, MauritiusView Sir Gaëtan Duval Airport on a map Set RRG as origin Airport Set RRG as destination Airport Get more information about Sir Gaëtan Duval 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