About this route:

A direct, nonstop flight between San Juan (Uganik) Seaplane Base (UGI), Uganik Island, United States and Henderson Field (MDY), Sand Island, Midway Atoll, United States would travel a Great Circle distance of 2,348 miles (or 3,778 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 San Juan (Uganik) Seaplane Base and Henderson Field, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

IATA / ICAO Codes: UGI /
Airport Names:
  1. San Juan (Uganik) Seaplane Base
  2. WSJ / UGI
  3. WSJ
Location: Uganik Island, United States
GPS Coordinates: 57°43'49"N by 153°19'14"W
Area Served: San Juan (Uganik), Alaska
Operator/Owner: San Juan Fishing & Packing Co.
Airport Type: Public
Elevation: 0 feet (0 meters)
# of Runways: 1
View all routes: Routes from UGI
More Information: UGI Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: MDY / PMDY
Airport Name: Henderson Field
Location: Sand Island, Midway Atoll, United States
GPS Coordinates: 28°12'5"N by 177°22'53"W
Area Served: Midway Atoll
Operator/Owner: U.S. Dept. of the Interior
Fish and Wildlife Service
Airport Type: Public
Elevation: 18 feet (5 meters)
# of Runways: 1
View all routes: Routes from MDY
More Information: MDY Maps & Info

Facts about San Juan (Uganik) Seaplane Base (UGI):

  • In addition to being known as "San Juan (Uganik) Seaplane Base", other names for UGI include "WSJ / UGI" and "WSJ".
  • This facility has one seaplane landing area designated N/S with a water surface measuring 10,000 by 2,000 feet.
  • The closest airport to San Juan (Uganik) Seaplane Base (UGI) is West Point Village Seaplane Base (KWP), which is located only 9 miles (14 kilometers) WNW of UGI.
  • Because of San Juan (Uganik) Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at San Juan (Uganik) 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.
  • San Juan (Uganik) Seaplane Base (UGI) currently has only 1 runway.
  • The furthest airport from San Juan (Uganik) Seaplane Base (UGI) is Port Elizabeth International Airport (PLZ), which is located 10,795 miles (17,373 kilometers) away in Port Elizabeth, South Africa.
  • Scheduled passenger service to Kodiak, Alaska, is subsidized by the United States Department of Transportation via the Essential Air Service program.

Facts about Henderson Field (MDY):

  • Henderson Field is a public airport located on Sand Island in Midway Atoll, an unincorporated territory of the United States.
  • After transition from the U.S.
  • The closest airport to Henderson Field (MDY) is Johnston Atoll Airport (JON), which is located 937 miles (1,508 kilometers) SE of MDY.
  • The furthest airport from Henderson Field (MDY) is Lüderitz Airport (LUD), which is located 11,656 miles (18,759 kilometers) away in Luderitz, Namibia.
  • Henderson Field (MDY) currently has only 1 runway.
  • Because of Henderson Field's relatively low elevation of 18 feet, planes can take off or land at Henderson Field 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.

Map of Nearest Airports to San Juan (Uganik) Seaplane Base:

List of Nearest Airports to San Juan (Uganik) Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
18.85 miles (14.25 km) WNWWest Point Village Seaplane Base (KWP)West Point, Kodiak Island Borough, Alaska, United StatesView West Point Village Seaplane Base on a map Set KWP as origin Airport Set KWP as destination Airport Get more information about West Point Village Seaplane Base
217.22 miles (27.71 km) NEPort Bailey Seaplane Base (KPY)Port Bailey, Kodiak Island Borough, Alaska, United StatesView Port Bailey Seaplane Base on a map Set KPY as origin Airport Set KPY as destination Airport Get more information about Port Bailey Seaplane Base
319.92 miles (32.06 km) SWZachar Bay Seaplane Base (KZB)Zachar Bay, Alaska, United StatesView Zachar Bay Seaplane Base on a map Set KZB as origin Airport Set KZB as destination Airport Get more information about Zachar Bay Seaplane Base
420.49 miles (32.97 km) ENEPort Lions Airport (ORI)Port Lions, Alaska, United StatesView Port Lions Airport on a map Set ORI as origin Airport Set ORI as destination Airport Get more information about Port Lions Airport
525.60 miles (41.20 km) SWAmook Bay Seaplane Base (AOS)Amook Bay, Alaska, United StatesView Amook Bay Seaplane Base on a map Set AOS as origin Airport Set AOS as destination Airport Get more information about Amook Bay Seaplane Base
627.77 miles (44.69 km) WSWLarsen Bay Airport (KLN)Larsen Bay, Alaska, United StatesView Larsen Bay Airport on a map Set KLN as origin Airport Set KLN as destination Airport Get more information about Larsen Bay Airport
730.52 miles (49.11 km) EKodiak Benny Benson State Airport (ADQ)Kodiak, Alaska, United StatesView Kodiak Benny Benson State Airport on a map Set ADQ as origin Airport Set ADQ as destination Airport Get more information about Kodiak Benny Benson State Airport
834.71 miles (55.86 km) ENEOuzinkie Airport (KOZ)Ouzinkie, Alaska, United StatesView Ouzinkie Airport on a map Set KOZ as origin Airport Set KOZ as destination Airport Get more information about Ouzinkie Airport
935.27 miles (56.77 km) EKodiak Municipal Airport (KDK)Kodiak, Alaska, United StatesView Kodiak Municipal Airport on a map Set KDK as origin Airport Set KDK as destination Airport Get more information about Kodiak Municipal Airport
1035.42 miles (57.01 km) SOld Harbor Airport (OLH)Old Harbor, Alaska, United StatesView Old Harbor Airport on a map Set OLH as origin Airport Set OLH as destination Airport Get more information about Old Harbor Airport
1143.41 miles (69.86 km) WSWKarluk Airport (KYK)Karluk, Alaska, United StatesView Karluk Airport on a map Set KYK as origin Airport Set KYK as destination Airport Get more information about Karluk Airport
1247.17 miles (75.91 km) NEKitoi Bay Seaplane Base (KKB)Kitoi Bay, Alaska, United StatesView Kitoi Bay Seaplane Base on a map Set KKB as origin Airport Set KKB as destination Airport Get more information about Kitoi Bay Seaplane Base
1351.84 miles (83.43 km) SWOlga Bay Seaplane Base (KOY)Olga Bay, Kodiak Island Borough, Alaska, United StatesView Olga Bay Seaplane Base on a map Set KOY as origin Airport Set KOY as destination Airport Get more information about Olga Bay Seaplane Base
1457.58 miles (92.67 km) SSWMoser Bay Seaplane Base (KMY)Moser Bay, Kodiak Island Borough, Alaska, United StatesView Moser Bay Seaplane Base on a map Set KMY as origin Airport Set KMY as destination Airport Get more information about Moser Bay Seaplane Base
1559.00 miles (94.96 km) NNEPort Williams Seaplane Base (KPR)Port Williams, Kodiak Island Borough, Alaska, United StatesView Port Williams Seaplane Base on a map Set KPR as origin Airport Set KPR as destination Airport Get more information about Port Williams Seaplane Base

Map of Furthest Airports from San Juan (Uganik) Seaplane Base:

List of Furthest Airports from San Juan (Uganik) Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,795.38 miles (17,373.44 km) SPort 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
210,785.45 miles (17,357.45 km) SGeorge 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
310,766.36 miles (17,326.74 km) SPort 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
410,752.39 miles (17,304.26 km) SSECape 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
510,729.68 miles (17,267.70 km) SEast 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
610,625.19 miles (17,099.55 km) SMthatha 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
710,572.02 miles (17,013.97 km) SMargate 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
810,510.95 miles (16,915.69 km) SLebakeng 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
910,508.51 miles (16,911.77 km) SSemonkong 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
1010,506.87 miles (16,909.13 km) SMafeteng 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
1110,502.26 miles (16,901.70 km) SLesobeng 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
1210,488.21 miles (16,879.09 km) SPietermaritzburg 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
1310,483.21 miles (16,871.05 km) SMoshoeshoe I International Airport (MSU)Maseru, LesothoView Moshoeshoe I International Airport on a map Set MSU as origin Airport Set MSU as destination Airport Get more information about Moshoeshoe I International Airport
1410,482.73 miles (16,870.27 km) SKing 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
1510,467.82 miles (16,846.28 km) SMokhotlong 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

Map of Nearest Airports to Henderson Field:

List of Nearest Airports to Henderson Field:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
1937.06 miles (1,508.05 km) SEJohnston 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
21,163.14 miles (1,871.89 km) SWQuoin Hill Airfield (UIQ)Quoin Hill, VanuatuView Quoin Hill Airfield on a map Set UIQ as destination Airport Set UIQ as destination Airport Get more information about Quoin Hill Airfield
31,179.19 miles (1,897.72 km) ESEPMRF 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
41,181.99 miles (1,902.22 km) WSWWake Island Airfield (AWK)Wake Island, United States Minor Outlying IslandsView Wake Island Airfield on a map Set AWK as destination Airport Set AWK as destination Airport Get more information about Wake Island Airfield
51,193.43 miles (1,920.63 km) ESEPort 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
61,193.67 miles (1,921.01 km) ESEPrinceville 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
71,206.51 miles (1,941.68 km) ESELihue 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
81,284.52 miles (2,067.22 km) ESEDillingham 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
91,296.45 miles (2,086.43 km) ESEWheeler 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
101,299.87 miles (2,091.93 km) ESEKalaeloa 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
111,308.14 miles (2,105.24 km) ESEHickam 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
121,308.14 miles (2,105.24 km) ESEHonolulu 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
131,361.18 miles (2,190.60 km) ESEMolokai Airport (MKK)Kaunakakai, Hawaii, United StatesView Molokai Airport on a map Set MKK as destination Airport Set MKK as destination Airport Get more information about Molokai Airport
141,366.66 miles (2,199.42 km) ESEKalaupapa Airport (LUP)Kalaupapa, Hawaii, United StatesView Kalaupapa Airport on a map Set LUP as destination Airport Set LUP as destination Airport Get more information about Kalaupapa Airport
151,380.51 miles (2,221.71 km) ESELanai 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

Map of Furthest Airports from Henderson Field:

List of Furthest Airports from Henderson Field:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,656.05 miles (18,758.55 km) WLüderitz Airport (LUD)Luderitz, NamibiaView Lüderitz Airport on a map Set LUD as destination Airport Set LUD as destination Airport Get more information about Lüderitz Airport
211,605.66 miles (18,677.45 km) WSWWalvis Bay Airport (WVB)Walvis Bay, NamibiaView Walvis Bay Airport on a map Set WVB as destination Airport Set WVB as destination Airport Get more information about Walvis Bay Airport
311,591.01 miles (18,653.87 km) WAlexander Bay Airport (ALJ)Alexander Bay, South AfricaView Alexander Bay Airport on a map Set ALJ as destination Airport Set ALJ as destination Airport Get more information about Alexander Bay Airport
411,569.67 miles (18,619.53 km) WSWArandis Airport (ADI)Arandis / Swakopmund, NamibiaView Arandis Airport on a map Set ADI as destination Airport Set ADI as destination Airport Get more information about Arandis Airport
511,556.22 miles (18,597.89 km) WKleinsee Airport (KLZ)Kleinzee, South AfricaView Kleinsee Airport on a map Set KLZ as destination Airport Set KLZ as destination Airport Get more information about Kleinsee Airport
611,479.95 miles (18,475.14 km) WKeetmanshoop Airport (KMP)Keetmanshoop, NamibiaView Keetmanshoop Airport on a map Set KMP as destination Airport Set KMP as destination Airport Get more information about Keetmanshoop Airport
711,456.03 miles (18,436.65 km) WSWEros Airport (ERS)Windhoek, NamibiaView Eros Airport on a map Set ERS as destination Airport Set ERS as destination Airport Get more information about Eros Airport
811,455.44 miles (18,435.69 km) WKarasburg Airport (KAS)Karasburg, NamibiaView Karasburg Airport on a map Set KAS as destination Airport Set KAS as destination Airport Get more information about Karasburg Airport
911,453.64 miles (18,432.80 km) WAggeneys Airport (AGZ)Aggeneys, South AfricaView Aggeneys Airport on a map Set AGZ as destination Airport Set AGZ as destination Airport Get more information about Aggeneys Airport
1011,453.62 miles (18,432.78 km) WWild Coast Sun Airport (MZF)Mzamba, South AfricaView Wild Coast Sun Airport on a map Set MZF as destination Airport Set MZF as destination Airport Get more information about Wild Coast Sun Airport
1111,430.33 miles (18,395.29 km) WSWHosea Kutako International Airport (WDH)Windhoek, NamibiaView Hosea Kutako International Airport on a map Set WDH as destination Airport Set WDH as destination Airport Get more information about Hosea Kutako International Airport
1211,412.29 miles (18,366.25 km) WSWCape 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
1311,357.04 miles (18,277.34 km) WSWHalali Airport (HAL)Halali, NamibiaView Halali Airport on a map Set HAL as destination Airport Set HAL as destination Airport Get more information about Halali Airport
1411,343.44 miles (18,255.45 km) WSWGobabis Airport (GOG)Gobabis, NamibiaView Gobabis Airport on a map Set GOG as destination Airport Set GOG as destination Airport Get more information about Gobabis Airport
1511,321.78 miles (18,220.59 km) SWVila Roçadas/Xangongo Airport (XGN)Xangongo, AngolaView Vila Roçadas/Xangongo Airport on a map Set XGN as destination Airport Set XGN as destination Airport Get more information about Vila Roçadas/Xangongo Airport