About this route:

A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Johnston Atoll Airport (JON), Johnston Atoll, U.S. Minor Outlying Islands would travel a Great Circle distance of 3,289 miles (or 5,293 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 Castle Airport and Johnston Atoll 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 Castle Airport and Johnston Atoll Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

IATA / ICAO Codes: MER / KMER
Airport Name: Castle Airport
Location: Atwater, California, United States
GPS Coordinates: 37°22'50"N by 120°34'5"W
Operator/Owner: Merced County Department of Commerce, Aviation, and Economic Development
Airport Type: Public
Elevation: 191 feet (58 meters)
# of Runways: 1
View all routes: Routes from MER
More Information: MER Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: JON / PJON
Airport Name: Johnston Atoll Airport
Location: Johnston Atoll, U.S. Minor Outlying Islands
GPS Coordinates: 16°43'42"N by 169°32'3"W
Airport Type: Public
Elevation: 7 feet (2 meters)
# of Runways: 1
View all routes: Routes from JON
More Information: JON Maps & Info

Facts about Castle Airport (MER):

  • The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
  • The airport is located at the former Castle Air Force Base which closed in 1995.
  • Castle Airport (MER) currently has only 1 runway.
  • The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
  • Castle Airport is a public use airport located seven nautical miles northwest of the central business district of Merced, a city in Merced County, California, United States.
  • EPA investigations have been completed at multiple areas of contamination including landfills, discharge areas, chemical disposal areas, fire training areas, fuel spill areas, and polychlorinated biphenyl spill areas.
  • Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
  • Because of Castle Airport's relatively low elevation of 191 feet, planes can take off or land at Castle 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.

Facts about Johnston Atoll Airport (JON):

  • Because of Johnston Atoll Airport's relatively low elevation of 7 feet, planes can take off or land at Johnston Atoll 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.
  • In July 1942 the civilian contractors at the atoll were replaced by 500 men from the 5th and 10th Naval Construction Battalions, who expanded the fuel storage and water production at the base and built additional facilities.
  • Johnston Atoll Airport (JON) currently has only 1 runway.
  • On 15 December 1941 the atoll was shelled by a Japanese submarine outside the reef, several buildings were hit, but no personnel were injured.
  • The closest airport to Johnston Atoll Airport (JON) is PMRF Barking Sands (BKH), which is located 733 miles (1,179 kilometers) ENE of JON.
  • The furthest airport from Johnston Atoll Airport (JON) is Lubango Mukanka Airport (SDD), which is nearly antipodal to Johnston Atoll Airport (meaning Johnston Atoll Airport is almost on the exact opposite side of the Earth from Lubango Mukanka Airport), and is located 12,195 miles (19,627 kilometers) away in Lubango, Angola.

Map of Nearest Airports to Castle Airport:

List of Nearest Airports to Castle Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
17.26 miles (11.68 km) SSEMerced Regional Airport (MCE)Merced, California, United StatesView Merced Regional Airport on a map Set MCE as origin Airport Set MCE as destination Airport Get more information about Merced Regional Airport
227.12 miles (43.65 km) NWModesto City-County Airport (MOD)Modesto, California, United StatesView Modesto City-County Airport on a map Set MOD as origin Airport Set MOD as destination Airport Get more information about Modesto City-County Airport
327.51 miles (44.27 km) SWLos Banos Municipal Airport (LSN)Los Banos, California, United StatesView Los Banos Municipal Airport on a map Set LSN as origin Airport Set LSN as destination Airport Get more information about Los Banos Municipal Airport
429.78 miles (47.92 km) WNASA Crows Landing Airport (NRC)Crows Landing, California, United StatesView NASA Crows Landing Airport on a map Set NRC as origin Airport Set NRC as destination Airport Get more information about NASA Crows Landing Airport
536.91 miles (59.40 km) SEMadera Municipal Airport (MAE)Madera, California, United StatesView Madera Municipal Airport on a map Set MAE as origin Airport Set MAE as destination Airport Get more information about Madera Municipal Airport
645.69 miles (73.53 km) NColumbia Airport (COA)Columbia, California, United StatesView Columbia Airport on a map Set COA as origin Airport Set COA as destination Airport Get more information about Columbia Airport
751.03 miles (82.13 km) NWStockton Metropolitan Airport (SCK)Stockton, California, United StatesView Stockton Metropolitan Airport on a map Set SCK as origin Airport Set SCK as destination Airport Get more information about Stockton Metropolitan Airport
857.32 miles (92.24 km) SWHollister Municipal Airport (HLI)Hollister, California, United StatesView Hollister Municipal Airport on a map Set HLI as origin Airport Set HLI as destination Airport Get more information about Hollister Municipal Airport
960.88 miles (97.98 km) SEFresno Chandler Executive AirportChandler Municipal Airport (Old) (FCH)Fresno, California, United StatesView Fresno Chandler Executive AirportChandler Municipal Airport (Old) on a map Set FCH as origin Airport Set FCH as destination Airport Get more information about Fresno Chandler Executive AirportChandler Municipal Airport (Old)
1062.71 miles (100.91 km) SEFresno Yosemite International Airport (FAT)Fresno, California, United StatesView Fresno Yosemite International Airport on a map Set FAT as origin Airport Set FAT as destination Airport Get more information about Fresno Yosemite International Airport
1168.82 miles (110.76 km) WReid-Hillview Airport of Santa Clara County (RHV)San Jose, California, United StatesView Reid-Hillview Airport of Santa Clara County on a map Set RHV as origin Airport Set RHV as destination Airport Get more information about Reid-Hillview Airport of Santa Clara County
1271.93 miles (115.77 km) WNWLivermore Municipal Airport (LVK)Livermore, California, United StatesView Livermore Municipal Airport on a map Set LVK as origin Airport Set LVK as destination Airport Get more information about Livermore Municipal Airport
1373.96 miles (119.02 km) WSWWatsonville Municipal Airport (WVI)Watsonville, California, United StatesView Watsonville Municipal Airport on a map Set WVI as origin Airport Set WVI as destination Airport Get more information about Watsonville Municipal Airport
1474.75 miles (120.29 km) WNorman Y. Mineta San Jose International Airport (SJC)San Jose, California, United StatesView Norman Y. Mineta San Jose International Airport on a map Set SJC as origin Airport Set SJC as destination Airport Get more information about Norman Y. Mineta San Jose International Airport
1575.76 miles (121.93 km) SWSalinas Municipal AirportSalinas Army Air Base (SNS)Salinas, California, United StatesView Salinas Municipal AirportSalinas Army Air Base on a map Set SNS as origin Airport Set SNS as destination Airport Get more information about Salinas Municipal AirportSalinas Army Air Base

Map of Furthest Airports from Castle Airport:

List of Furthest Airports from Castle Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,311.72 miles (18,204.41 km) SETôlanaro Airport (FTU)Tôlanaro, MadagascarView Tôlanaro Airport on a map Set FTU as origin Airport Set FTU as destination Airport Get more information about Tôlanaro Airport
211,301.64 miles (18,188.18 km) SSEPierrefonds Airport (ZSE)Saint-Pierre, RéunionView Pierrefonds Airport on a map Set ZSE as origin Airport Set ZSE as destination Airport Get more information about Pierrefonds Airport
311,273.49 miles (18,142.87 km) SSERoland Garros Airport (RUN)St Denis, Réunion, FranceView Roland Garros Airport on a map Set RUN as origin Airport Set RUN as destination Airport Get more information about Roland Garros Airport
411,260.93 miles (18,122.66 km) SSir Seewoosagur Ramgoolam International Airport (MRU)Plaisance, MauritiusView Sir Seewoosagur Ramgoolam International Airport on a map Set MRU as origin Airport Set MRU as destination Airport Get more information about Sir Seewoosagur Ramgoolam International Airport
511,205.02 miles (18,032.69 km) SEAmpanihy Airport (AMP)Ampanihy, MadagascarView Ampanihy Airport on a map Set AMP as origin Airport Set AMP as destination Airport Get more information about Ampanihy Airport
611,196.39 miles (18,018.79 km) SSWSir 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
711,137.28 miles (17,923.67 km) SSEMananjary Airport (MNJ)Mananjary, MadagascarView Mananjary Airport on a map Set MNJ as origin Airport Set MNJ as destination Airport Get more information about Mananjary Airport
811,111.96 miles (17,882.92 km) SEFianarantsoa Airport (WFI)Fianarantsoa, MadagascarView Fianarantsoa Airport on a map Set WFI as origin Airport Set WFI as destination Airport Get more information about Fianarantsoa Airport
911,011.03 miles (17,720.49 km) SEManja Airport (MJA)Manja, Menabe, MadagascarView Manja Airport on a map Set MJA as origin Airport Set MJA as destination Airport Get more information about Manja Airport
1011,008.37 miles (17,716.22 km) SEAndavadoaka Airport (DVD)Andavadoaka, Toliara province, Atsimo-Andrefana region, MadagascarView Andavadoaka Airport on a map Set DVD as origin Airport Set DVD as destination Airport Get more information about Andavadoaka Airport
1110,993.21 miles (17,691.82 km) SEMorombe Airport (MXM)Morombe, MadagascarView Morombe Airport on a map Set MXM as origin Airport Set MXM as destination Airport Get more information about Morombe Airport
1210,972.89 miles (17,659.11 km) SSEToamasino Airport (TMM)Toamasina, MadagascarView Toamasino Airport on a map Set TMM as origin Airport Set TMM as destination Airport Get more information about Toamasino Airport
1310,963.56 miles (17,644.10 km) SSEIvato International Airport (TNR)Antananarivo, MadagascarView Ivato International Airport on a map Set TNR as origin Airport Set TNR as destination Airport Get more information about Ivato International Airport
1410,945.21 miles (17,614.56 km) SEMiandrivazo Airport (ZVA)Miandrivazo, MadagascarView Miandrivazo Airport on a map Set ZVA as origin Airport Set ZVA as destination Airport Get more information about Miandrivazo Airport
1510,920.84 miles (17,575.35 km) SEBelo sur Tsiribihina Airport (BMD)Belo sur Tsiribihina, MadagascarView Belo sur Tsiribihina Airport on a map Set BMD as origin Airport Set BMD as destination Airport Get more information about Belo sur Tsiribihina Airport

Map of Nearest Airports to Johnston Atoll Airport:

List of Nearest Airports to Johnston Atoll Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
1732.87 miles (1,179.44 km) ENEPMRF 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
2739.15 miles (1,189.55 km) ENEPort 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
3756.72 miles (1,217.82 km) ENELihue 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
4758.11 miles (1,220.05 km) ENEPrinceville 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
5811.92 miles (1,306.65 km) ENEDillingham 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
6812.55 miles (1,307.67 km) ENEKalaeloa 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
7818.84 miles (1,317.80 km) ENEWheeler 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
8821.72 miles (1,322.43 km) ENEHickam 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
9821.72 miles (1,322.43 km) ENEHonolulu 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
10868.00 miles (1,396.91 km) ENEMolokai 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
11869.25 miles (1,398.91 km) ENELanai 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
12876.78 miles (1,411.04 km) ENEKalaupapa 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
13890.00 miles (1,432.31 km) ENEKapalua Airport (JHM)Lahaina, Hawaii, United StatesView Kapalua Airport on a map Set JHM as destination Airport Set JHM as destination Airport Get more information about Kapalua Airport
14903.71 miles (1,454.38 km) ENEKahului Airport (OGG)Kahului, Hawaii, United StatesView Kahului Airport on a map Set OGG as destination Airport Set OGG as destination Airport Get more information about Kahului Airport
15908.96 miles (1,462.82 km) ENEKona 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

Map of Furthest Airports from Johnston Atoll Airport:

List of Furthest Airports from Johnston Atoll Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112,195.43 miles (19,626.59 km) WSWLubango Mukanka Airport (SDD)Lubango, AngolaView Lubango Mukanka Airport on a map Set SDD as destination Airport Set SDD as destination Airport Get more information about Lubango Mukanka Airport
212,139.12 miles (19,535.97 km) WVila 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
312,091.02 miles (19,458.56 km) SWBenguela 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
412,011.89 miles (19,331.22 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
511,991.37 miles (19,298.19 km) SWAlbano 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
611,956.55 miles (19,242.15 km) SWWaku 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
711,943.67 miles (19,221.43 km) SWArandis 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
811,926.69 miles (19,194.10 km) SSWWalvis 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
911,896.45 miles (19,145.44 km) WSWGrootfontein Airport (GFY)Grootfontein, NamibiaView Grootfontein Airport on a map Set GFY as destination Airport Set GFY as destination Airport Get more information about Grootfontein Airport
1011,882.79 miles (19,123.46 km) SWAeroporto 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
1111,862.02 miles (19,090.02 km) SSWQuatro de Fevereiro International Airport (LAD)Luanda, AngolaView Quatro de Fevereiro International Airport on a map Set LAD as destination Airport Set LAD as destination Airport Get more information about Quatro de Fevereiro International Airport
1211,849.37 miles (19,069.67 km) WCuito Cuanavale Airport (CTI)Cuito Cuanavale, AngolaView Cuito Cuanavale Airport on a map Set CTI as destination Airport Set CTI as destination Airport Get more information about Cuito Cuanavale Airport
1311,845.00 miles (19,062.64 km) SWEros 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
1411,832.32 miles (19,042.23 km) SWHosea 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
1511,820.71 miles (19,023.54 km) WRundu Airport (NDU)Rundu, Okavango Region, NamibiaView Rundu Airport on a map Set NDU as destination Airport Set NDU as destination Airport Get more information about Rundu Airport