About this route:

A direct, nonstop flight between Obo Airport (OBX), Obo, Papua New Guinea, Papua New Guinea and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 6,980 miles (or 11,234 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 Obo Airport and Castle 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 Obo Airport and Castle Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

IATA / ICAO Codes: OBX /
Airport Names:
  1. Obo Airport
  2. AYOB
Location: Obo, Papua New Guinea, Papua New Guinea
GPS Coordinates: 7°35'25"S by 141°19'27"E
View all routes: Routes from OBX
More Information: OBX Maps & Info

Arrival 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

Facts about Obo Airport (OBX):

  • In addition to being known as "Obo Airport", another name for OBX is "AYOB".
  • The closest airport to Obo Airport (OBX) is Aiambak Airport (AIH), which is located only 18 miles (28 kilometers) NNW of OBX.
  • The furthest airport from Obo Airport (OBX) is Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB), which is located 11,682 miles (18,801 kilometers) away in Parnaiba, Piaui, Brazil.

Facts about Castle Airport (MER):

  • Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
  • Since the mid-1940s, aircraft maintenance, fuel management, and fire training activities on the base have generated wastes that consist primarily of waste fuels, oils, solvents, and cleaners.
  • The EPA currently has this base listed on their database due to the bulk wastes such as solvents, oils, fuels, and sludges which were disposed in pits at landfills around the base until 1977.
  • Castle Airport (MER) currently has only 1 runway.
  • 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.
  • 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 closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.

Map of Nearest Airports to Obo Airport:

List of Nearest Airports to Obo Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
117.59 miles (28.30 km) NNWAiambak Airport (AIH)Aiambak, Papua New GuineaView Aiambak Airport on a map Set AIH as origin Airport Set AIH as destination Airport Get more information about Aiambak Airport
228.92 miles (46.54 km) NNWBosset Airport (BOT)Boset, Papua New GuineaView Bosset Airport on a map Set BOT as origin Airport Set BOT as destination Airport Get more information about Bosset Airport
341.79 miles (67.26 km) NNELake Murray Airport (LMY)Lake Murray, Papua New GuineaView Lake Murray Airport on a map Set LMY as origin Airport Set LMY as destination Airport Get more information about Lake Murray Airport
487.58 miles (140.95 km) SBensbach Airport (BSP)Bensbach, Papua New GuineaView Bensbach Airport on a map Set BSP as origin Airport Set BSP as destination Airport Get more information about Bensbach Airport
589.26 miles (143.65 km) SWMopah Airport (MKQ)Merauke, Papua, IndonesiaView Mopah Airport on a map Set MKQ as origin Airport Set MKQ as destination Airport Get more information about Mopah Airport
6101.97 miles (164.10 km) ESEAwaba Airport (AWB)Awaba, Papua New GuineaView Awaba Airport on a map Set AWB as origin Airport Set AWB as destination Airport Get more information about Awaba Airport
7105.81 miles (170.29 km) ESasereme Airport (TDS)Sasereme, Papua New GuineaView Sasereme Airport on a map Set TDS as origin Airport Set TDS as destination Airport Get more information about Sasereme Airport
8106.41 miles (171.24 km) NAtkamba Airport (ABP)Atkamba, Papua New GuineaView Atkamba Airport on a map Set ABP as origin Airport Set ABP as destination Airport Get more information about Atkamba Airport
9122.83 miles (197.67 km) WNWBade Airport (BXD)Bade, IndonesiaView Bade Airport on a map Set BXD as origin Airport Set BXD as destination Airport Get more information about Bade Airport
10128.85 miles (207.36 km) SSEBoigu Island Airport (GIC)Boigu Island, Queensland, AustraliaView Boigu Island Airport on a map Set GIC as origin Airport Set GIC as destination Airport Get more information about Boigu Island Airport
11145.51 miles (234.17 km) NNEBiangabip Airport (BPK)Biangabip, Papua New GuineaView Biangabip Airport on a map Set BPK as origin Airport Set BPK as destination Airport Get more information about Biangabip Airport
12156.26 miles (251.48 km) ENEMoro Airport (MXH)Moro, Papua New GuineaView Moro Airport on a map Set MXH as origin Airport Set MXH as destination Airport Get more information about Moro Airport
13165.13 miles (265.74 km) SEDaru Airport (DAU)Daru, Western Province, Papua New GuineaView Daru Airport on a map Set DAU as origin Airport Set DAU as destination Airport Get more information about Daru Airport
14186.14 miles (299.55 km) SSEBadu Island Airport (BDD)Badu Island, Queensland, AustraliaView Badu Island Airport on a map Set BDD as origin Airport Set BDD as destination Airport Get more information about Badu Island Airport
15186.87 miles (300.74 km) SSEYam Island Airport (XMY)Yam Island, Queensland, AustraliaView Yam Island Airport on a map Set XMY as origin Airport Set XMY as destination Airport Get more information about Yam Island Airport

Map of Furthest Airports from Obo Airport:

List of Furthest Airports from Obo Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,682.48 miles (18,801.08 km) NNEParnaíba–Prefeito Dr. João Silva Filho International Airport (PHB)Parnaiba, Piaui, BrazilView Parnaíba–Prefeito Dr. João Silva Filho International Airport on a map Set PHB as origin Airport Set PHB as destination Airport Get more information about Parnaíba–Prefeito Dr. João Silva Filho International Airport
211,667.29 miles (18,776.63 km) NNEBarreirinhas Airport (BRB)Barreirinhas, Maranhão, BrazilView Barreirinhas Airport on a map Set BRB as origin Airport Set BRB as destination Airport Get more information about Barreirinhas Airport
311,651.40 miles (18,751.06 km) NPinto Martins – Fortaleza International Airport (FOR)Fortaleza, Ceará, BrazilView Pinto Martins – Fortaleza International Airport on a map Set FOR as origin Airport Set FOR as destination Airport Get more information about Pinto Martins – Fortaleza International Airport
411,635.92 miles (18,726.15 km) NNEMarechal Cunha Machado International Airport (Tirirical) (SLZ)São Luís, BrazilView Marechal Cunha Machado International Airport (Tirirical) on a map Set SLZ as origin Airport Set SLZ as destination Airport Get more information about Marechal Cunha Machado International Airport (Tirirical)
511,548.71 miles (18,585.81 km) NGov. Dix-Sept Rosado Airport (MVF)Mossoro, Rio Grande do Norte, BrazilView Gov. Dix-Sept Rosado Airport on a map Set MVF as origin Airport Set MVF as destination Airport Get more information about Gov. Dix-Sept Rosado Airport
611,536.32 miles (18,565.86 km) NNWGovernador Carlos Wilson Airport (FEN)Fernando de Noronha, Pernambuco, BrazilView Governador Carlos Wilson Airport on a map Set FEN as origin Airport Set FEN as destination Airport Get more information about Governador Carlos Wilson Airport
711,519.72 miles (18,539.14 km) NEBelém/Val de Cans–Júlio Cezar Ribeiro International Airport (BEL)Belém, Pará, BrazilView Belém/Val de Cans–Júlio Cezar Ribeiro International Airport on a map Set BEL as origin Airport Set BEL as destination Airport Get more information about Belém/Val de Cans–Júlio Cezar Ribeiro International Airport
811,517.10 miles (18,534.93 km) NNETeresina–Senador Petrônio Portella Airport (THE)Teresina, Piauí, BrazilView Teresina–Senador Petrônio Portella Airport on a map Set THE as origin Airport Set THE as destination Airport Get more information about Teresina–Senador Petrônio Portella Airport
911,477.54 miles (18,471.27 km) ECayenne – Félix Eboué Airport (CAY)Cayenne, French GuianaView Cayenne – Félix Eboué Airport on a map Set CAY as origin Airport Set CAY as destination Airport Get more information about Cayenne – Félix Eboué Airport
1011,474.68 miles (18,466.66 km) NNWAugusto Severo International Airport (NAT)Natal, BrazilView Augusto Severo International Airport on a map Set NAT as origin Airport Set NAT as destination Airport Get more information about Augusto Severo International Airport
1111,436.59 miles (18,405.36 km) ENEMacapá-Alberto Alcolumbre International Airport (MCP)Macapá, Amapá, BrazilView Macapá-Alberto Alcolumbre International Airport on a map Set MCP as origin Airport Set MCP as destination Airport Get more information about Macapá-Alberto Alcolumbre International Airport
1211,400.91 miles (18,347.93 km) ENESaül Airport (XAU)Saül, French GuianaView Saül Airport on a map Set XAU as origin Airport Set XAU as destination Airport Get more information about Saül Airport
1311,392.37 miles (18,334.19 km) NPresidente João Suassuna Airport (CPV)Campina Grande, Paraíba, BrazilView Presidente João Suassuna Airport on a map Set CPV as origin Airport Set CPV as destination Airport Get more information about Presidente João Suassuna Airport
1411,386.73 miles (18,325.11 km) NNWPresidente Castro Pinto International Airport (JPA)João Pessoa, Paraíba, BrazilView Presidente Castro Pinto International Airport on a map Set JPA as origin Airport Set JPA as destination Airport Get more information about Presidente Castro Pinto International Airport
1511,371.91 miles (18,301.27 km) EAlbina Airstrip (ABN)Albina, SurinameView Albina Airstrip on a map Set ABN as origin Airport Set ABN as destination Airport Get more information about Albina Airstrip

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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination 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 destination Airport Set BMD as destination Airport Get more information about Belo sur Tsiribihina Airport