About this route:

A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and St Helens Airport (HLS), St. Helens, Tasmania, Australia would travel a Great Circle distance of 7,904 miles (or 12,720 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 St Helens 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 St Helens 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: HLS / YSTH
Airport Name: St Helens Airport
Location: St. Helens, Tasmania, Australia
GPS Coordinates: 41°20'12"S by 148°16'54"E
Operator/Owner: Break O'Day Council
Airport Type: Public
Elevation: 158 feet (48 meters)
# of Runways: 1
View all routes: Routes from HLS
More Information: HLS Maps & Info

Facts about Castle Airport (MER):

  • Castle Airport (MER) currently has only 1 runway.
  • 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.
  • 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.
  • Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
  • 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.
  • 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.

Facts about St Helens Airport (HLS):

  • St Helens Airport (HLS) currently has only 1 runway.
  • Because of St Helens Airport's relatively low elevation of 158 feet, planes can take off or land at St Helens 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 St Helens Airport (HLS) is Launceston Airport (LST), which is located 57 miles (92 kilometers) WSW of HLS.
  • The furthest airport from St Helens Airport (HLS) is Corvo Airport (CVU), which is nearly antipodal to St Helens Airport (meaning St Helens Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,317 miles (19,823 kilometers) away in Corvo Island, Azores, Portugal.

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 St Helens Airport:

List of Nearest Airports to St Helens Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
157.09 miles (91.88 km) WSWLaunceston Airport (LST)Launceston, Tasmania, AustraliaView Launceston Airport on a map Set LST as destination Airport Set LST as destination Airport Get more information about Launceston Airport
277.01 miles (123.93 km) WNWGeorge Town Aerodrome (GEE)George Town, Tasmania, AustraliaView George Town Aerodrome on a map Set GEE as destination Airport Set GEE as destination Airport Get more information about George Town Aerodrome
387.36 miles (140.59 km) NFlinders Island Airport (FLS)Flinders Island, Tasmania, AustraliaView Flinders Island Airport on a map Set FLS as destination Airport Set FLS as destination Airport Get more information about Flinders Island Airport
496.86 miles (155.88 km) WDevonport Airport (DPO)Devonport, Tasmania, AustraliaView Devonport Airport on a map Set DPO as destination Airport Set DPO as destination Airport Get more information about Devonport Airport
5110.94 miles (178.53 km) SSWHobart International Airport (HBA)Hobart, Tasmania, AustraliaView Hobart International Airport on a map Set HBA as destination Airport Set HBA as destination Airport Get more information about Hobart International Airport
6134.69 miles (216.77 km) WBurnie Airport (BWT)Burnie, Tasmania, AustraliaView Burnie Airport on a map Set BWT as destination Airport Set BWT as destination Airport Get more information about Burnie Airport
7170.12 miles (273.78 km) WSmithton Airport (SIO)Smithton, Tasmania, AustraliaView Smithton Airport on a map Set SIO as destination Airport Set SIO as destination Airport Get more information about Smithton Airport
8241.32 miles (388.37 km) NBairnsdale Aerodrome (BSJ)Bairnsdale, Victoria, AustraliaView Bairnsdale Aerodrome on a map Set BSJ as destination Airport Set BSJ as destination Airport Get more information about Bairnsdale Aerodrome
9251.98 miles (405.52 km) WNWKing Island Airport (KNS)Currie, Tasmania, AustraliaView King Island Airport on a map Set KNS as destination Airport Set KNS as destination Airport Get more information about King Island Airport
10287.23 miles (462.24 km) NWMoorabbin Harry Hawker Airport (MBW)Moorabbin, Victoria, AustraliaView Moorabbin Harry Hawker Airport on a map Set MBW as destination Airport Set MBW as destination Airport Get more information about Moorabbin Harry Hawker Airport
11300.22 miles (483.16 km) NWGeelong Airport (GEX)Grovedale, Victoria, AustraliaView Geelong Airport on a map Set GEX as destination Airport Set GEX as destination Airport Get more information about Geelong Airport
12300.66 miles (483.86 km) NMount Hotham Airport (MHU)Mount Hotham, Victoria, AustraliaView Mount Hotham Airport on a map Set MHU as destination Airport Set MHU as destination Airport Get more information about Mount Hotham Airport
13307.52 miles (494.90 km) NWEssendon Airport (MEB)Melbourne, Victoria, AustraliaView Essendon Airport on a map Set MEB as destination Airport Set MEB as destination Airport Get more information about Essendon Airport
14312.45 miles (502.84 km) NWMelbourne Airport (MEL)Melbourne, Victoria, AustraliaView Melbourne Airport on a map Set MEL as destination Airport Set MEL as destination Airport Get more information about Melbourne Airport
15315.73 miles (508.12 km) NWAvalon Airport (AVV)Avalon, Victoria, AustraliaView Avalon Airport on a map Set AVV as destination Airport Set AVV as destination Airport Get more information about Avalon Airport

Map of Furthest Airports from St Helens Airport:

List of Furthest Airports from St Helens Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112,317.39 miles (19,822.86 km) NNWCorvo Airport (CVU)Corvo Island, Azores, PortugalView Corvo Airport on a map Set CVU as destination Airport Set CVU as destination Airport Get more information about Corvo Airport
212,303.39 miles (19,800.33 km) NNWFlores Airport (FLW)Flores Island, Azores, PortugalView Flores Airport on a map Set FLW as destination Airport Set FLW as destination Airport Get more information about Flores Airport
312,187.96 miles (19,614.57 km) NWGraciosa Airport (GRW)Graciosa Island, Azores, PortugalView Graciosa Airport on a map Set GRW as destination Airport Set GRW as destination Airport Get more information about Graciosa Airport
412,185.49 miles (19,610.60 km) NWHorta International Airport (HOR)Horta, Azores, PortugalView Horta International Airport on a map Set HOR as destination Airport Set HOR as destination Airport Get more information about Horta International Airport
512,177.83 miles (19,598.28 km) NWPico Airport (PIX)Pico Island, Azores, PortugalView Pico Airport on a map Set PIX as destination Airport Set PIX as destination Airport Get more information about Pico Airport
612,134.30 miles (19,528.22 km) NWLajes Air Base (TER)Lajes, Azores, PortugalView Lajes Air Base on a map Set TER as destination Airport Set TER as destination Airport Get more information about Lajes Air Base
712,031.26 miles (19,362.39 km) NWJoão Paulo II Airport (PDL)Ponta Delgada, Azores, PortugalView João Paulo II Airport on a map Set PDL as destination Airport Set PDL as destination Airport Get more information about João Paulo II Airport
811,974.54 miles (19,271.10 km) NWSanta Maria Airport (SMA)Santa Maria, PortugalView Santa Maria Airport on a map Set SMA as destination Airport Set SMA as destination Airport Get more information about Santa Maria Airport
911,421.39 miles (18,380.90 km) WNWMadeira Airport (FNC)Funchal, Madeira, PortugalView Madeira Airport on a map Set FNC as destination Airport Set FNC as destination Airport Get more information about Madeira Airport
1011,418.70 miles (18,376.57 km) WNWPorto Santo Airport (PXO)Porto Santo, Madeira, PortugalView Porto Santo Airport on a map Set PXO as destination Airport Set PXO as destination Airport Get more information about Porto Santo Airport
1111,317.17 miles (18,213.17 km) ENESt. John's International Airport (YYT)St. John's, Newfoundland and Labrador, CanadaView St. John's International Airport on a map Set YYT as destination Airport Set YYT as destination Airport Get more information about St. John's International Airport
1211,258.38 miles (18,118.57 km) NWLa Palma Airport (SPC)La Palma, Canary Islands, SpainView La Palma Airport on a map Set SPC as destination Airport Set SPC as destination Airport Get more information about La Palma Airport
1311,249.17 miles (18,103.75 km) WVigo Airport (VGO)Vigo, Galicia, SpainView Vigo Airport on a map Set VGO as destination Airport Set VGO as destination Airport Get more information about Vigo Airport
1411,244.10 miles (18,095.58 km) WFrancisco Sá Carneiro Airport (OPO)Porto, PortugalView Francisco Sá Carneiro Airport on a map Set OPO as destination Airport Set OPO as destination Airport Get more information about Francisco Sá Carneiro Airport
1511,241.46 miles (18,091.33 km) WNWSantiago de Compostela Airport (SCQ)Santiago de Compostela, SpainView Santiago de Compostela Airport on a map Set SCQ as destination Airport Set SCQ as destination Airport Get more information about Santiago de Compostela Airport