About this route:

A direct, nonstop flight between Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States and Quatro de Fevereiro International Airport (LAD), Luanda, Angola would travel a Great Circle distance of 8,705 miles (or 14,010 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 Quatro de Fevereiro International 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 Thorne Bay Seaplane Base and Quatro de Fevereiro International Airport. 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: LAD / FNLU
Airport Names:
  1. Quatro de Fevereiro International Airport
  2. Aeroporto 4 de Fevereiro (Belas) (Luanda)
  3. Aeroporto Internacional 4 de Fevereiro
Location: Luanda, Angola
GPS Coordinates: 8°51'29"S by 13°13'52"E
Operator/Owner: ENANA EP
Airport Type: Military / Public
Elevation: 243 feet (74 meters)
# of Runways: 2
View all routes: Routes from LAD
More Information: LAD Maps & Info

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.
  • 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.
  • 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.
  • 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.

Facts about Quatro de Fevereiro International Airport (LAD):

  • The furthest airport from Quatro de Fevereiro International Airport (LAD) is Johnston Atoll Airport (JON), which is located 11,862 miles (19,090 kilometers) away in Johnston Atoll, U.S. Minor Outlying Islands.
  • In addition to being known as "Quatro de Fevereiro International Airport", other names for LAD include "Aeroporto 4 de Fevereiro (Belas) (Luanda)" and "Aeroporto Internacional 4 de Fevereiro".
  • Quatro de Fevereiro International Airport handled 2,430,794 passengers last year.
  • The airport resides at an elevation of 243 feet above mean sea level.
  • Because of Quatro de Fevereiro International Airport's relatively low elevation of 243 feet, planes can take off or land at Quatro de Fevereiro 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 closest airport to Quatro de Fevereiro International Airport (LAD) is Ambriz Airport (AZZ), which is located 69 miles (111 kilometers) N of LAD.
  • On 27 June 2009, a British Airways Boeing 777-200ER G-RAES was damaged, while it was parked, by a collision with a Hainan Airlines Airbus A340-600 B-6510.
  • On 25 May 2003, a Boeing 727–223 with the registration number N844AA, which had been parked at the airport for over a year, was stolen in mysterious circumstances.
  • Quatro de Fevereiro International Airport (LAD) has 2 runways.

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 Quatro de Fevereiro International Airport:

List of Nearest Airports to Quatro de Fevereiro International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
169.23 miles (111.41 km) NAmbriz Airport (AZZ)Ambriz, AngolaView Ambriz Airport on a map Set AZZ as destination Airport Set AZZ as destination Airport Get more information about Ambriz Airport
2113.33 miles (182.38 km) NNWN'Zeto/Ambrizete Airport (ARZ)N'zeto, AngolaView N'Zeto/Ambrizete Airport on a map Set ARZ as destination Airport Set ARZ as destination Airport Get more information about N'Zeto/Ambrizete Airport
3113.33 miles (182.38 km) NNWNamibe Airport (MSZ)Namibe, AngolaView Namibe Airport on a map Set MSZ as destination Airport Set MSZ as destination Airport Get more information about Namibe Airport
4159.94 miles (257.40 km) ENENegage Airport (GXG)Negage, AngolaView Negage Airport on a map Set GXG as destination Airport Set GXG as destination Airport Get more information about Negage Airport
5207.87 miles (334.53 km) NBoma Airport (BOA)Boma, Democratic Republic of the CongoView Boma Airport on a map Set BOA as destination Airport Set BOA as destination Airport Get more information about Boma Airport
6211.04 miles (339.63 km) NNWMuanda Airport (Moanda Airport) (MNB)Muanda (Moanda), Democratic Republic of the CongoView Muanda Airport (Moanda Airport) on a map Set MNB as destination Airport Set MNB as destination Airport Get more information about Muanda Airport (Moanda Airport)
7211.90 miles (341.02 km) NTshimpi Airport (Matadi Airport) (MAT)Matadi, Democratic Republic of the CongoView Tshimpi Airport (Matadi Airport) on a map Set MAT as destination Airport Set MAT as destination Airport Get more information about Tshimpi Airport (Matadi Airport)
8215.14 miles (346.24 km) ESEMalanje Airport (MEG)Malange, AngolaView Malanje Airport on a map Set MEG as destination Airport Set MEG as destination Airport Get more information about Malanje Airport
9218.33 miles (351.37 km) SEWaku Kungo Airport/Cela (CEO)Waco Kungo, AngolaView Waku Kungo Airport/Cela on a map Set CEO as destination Airport Set CEO as destination Airport Get more information about Waku Kungo Airport/Cela
10236.38 miles (380.42 km) NNWCabinda Airport (CAB)Cabinda, AngolaView Cabinda Airport on a map Set CAB as destination Airport Set CAB as destination Airport Get more information about Cabinda Airport
11259.41 miles (417.48 km) SBenguela Airport (BUG)Benguela, AngolaView Benguela Airport on a map Set BUG as destination Airport Set BUG as destination Airport Get more information about Benguela Airport
12294.31 miles (473.64 km) NNWPointe Noire Agostinho Neto International Airport (PNR)Pointe-Noire, Republic of the CongoView Pointe Noire Agostinho Neto International Airport on a map Set PNR as destination Airport Set PNR as destination Airport Get more information about Pointe Noire Agostinho Neto International Airport
13297.66 miles (479.04 km) SEAeroporto de Andulo (ANL)Andulo, AngolaView Aeroporto de Andulo on a map Set ANL as destination Airport Set ANL as destination Airport Get more information about Aeroporto de Andulo
14322.43 miles (518.90 km) SSEAlbano Machado (Huambo) Airport (NOV)Huambo, AngolaView Albano Machado (Huambo) Airport on a map Set NOV as destination Airport Set NOV as destination Airport Get more information about Albano Machado (Huambo) Airport
15323.80 miles (521.11 km) NDolisie Airport (DIS)Dolisie, Republic of CongoView Dolisie Airport on a map Set DIS as destination Airport Set DIS as destination Airport Get more information about Dolisie Airport

Map of Furthest Airports from Quatro de Fevereiro International Airport:

List of Furthest Airports from Quatro de Fevereiro International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,862.02 miles (19,090.02 km) NNEJohnston Atoll Airport (JON)Johnston Atoll, U.S. Minor Outlying IslandsView Johnston Atoll Airport on a map Set JON as destination Airport Set JON as destination Airport Get more information about Johnston Atoll Airport
211,633.88 miles (18,722.88 km) NWCassidy International Airport (CXI)Christmas Island, KiribatiView Cassidy International Airport on a map Set CXI as destination Airport Set CXI as destination Airport Get more information about Cassidy International Airport
311,564.45 miles (18,611.12 km) NNECanton Island Airport (CIS)Canton Island, KiribatiView Canton Island Airport on a map Set CIS as destination Airport Set CIS as destination Airport Get more information about Canton Island Airport
411,417.84 miles (18,375.18 km) NNWPort Allen Airport (PAK)Hanapepe, Hawaii, United StatesView Port Allen Airport on a map Set PAK as destination Airport Set PAK as destination Airport Get more information about Port Allen Airport
511,415.77 miles (18,371.85 km) NNWPMRF Barking Sands (BKH)Kekaha, Hawaii, United StatesView PMRF Barking Sands on a map Set BKH as destination Airport Set BKH as destination Airport Get more information about PMRF Barking Sands
611,404.77 miles (18,354.16 km) NNWLihue Airport (LIH)Lihue, Hawaii, United StatesView Lihue Airport on a map Set LIH as destination Airport Set LIH as destination Airport Get more information about Lihue Airport
711,400.00 miles (18,346.47 km) NNWKalaeloa Airport (NAX)Kapolei, Hawaii, United StatesView Kalaeloa Airport on a map Set NAX as destination Airport Set NAX as destination Airport Get more information about Kalaeloa Airport
811,398.19 miles (18,343.57 km) NWKona International Airport at Keāhole (KOA)Kailua / Kona, Hawaii, United StatesView Kona International Airport at Keāhole on a map Set KOA as destination Airport Set KOA as destination Airport Get more information about Kona International Airport at Keāhole
911,394.08 miles (18,336.95 km) NNWPrinceville Airport (HPV)Hanalei, Hawaii, United StatesView Princeville Airport on a map Set HPV as destination Airport Set HPV as destination Airport Get more information about Princeville Airport
1011,393.84 miles (18,336.56 km) NNWHonolulu International Airport (HNL)Honolulu, Hawaii, United StatesView Honolulu International Airport on a map Set HNL as destination Airport Set HNL as destination Airport Get more information about Honolulu International Airport
1111,393.84 miles (18,336.56 km) NNWHickam Field (HIK)Honolulu, Hawaii, United StatesView Hickam Field on a map Set HIK as destination Airport Set HIK as destination Airport Get more information about Hickam Field
1211,389.20 miles (18,329.09 km) NNWDillingham Airfield (HDH)Mokuleia, Hawaii, United StatesView Dillingham Airfield on a map Set HDH as destination Airport Set HDH as destination Airport Get more information about Dillingham Airfield
1311,388.83 miles (18,328.51 km) NNWWheeler AAF (HHI)Wahiawa, Hawaii, United StatesView Wheeler AAF on a map Set HHI as destination Airport Set HHI as destination Airport Get more information about Wheeler AAF
1411,384.56 miles (18,321.63 km) NWLanai Airport (LNY)Lanai City, Hawaii, United StatesView Lanai Airport on a map Set LNY as destination Airport Set LNY as destination Airport Get more information about Lanai Airport
1511,378.06 miles (18,311.17 km) NWPōhakuloa Training Area (BSF)Camp Pohakuloa, Hawaii, United StatesView Pōhakuloa Training Area on a map Set BSF as destination Airport Set BSF as destination Airport Get more information about Pōhakuloa Training Area