Nonstop flight route between Atwater, California, United States and Harlingen, Texas, United States:
Departure Airport:
(37°22'50"N by 120°34'5"W)
Arrival Airport:
(26°13'37"N by 97°39'18"W)
Distance from MER to HRL:
1,544.32 miles (2,485.34 km)
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- About this route
- MER Airport Information
- HRL Airport Information
- Facts about MER
- Facts about HRL
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
- Map of Nearest Airports to HRL
- List of Nearest Airports to HRL
- Map of Furthest Airports from HRL
- List of Furthest Airports from HRL
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Valley International Airport (HRL), Harlingen, Texas, United States would travel a Great Circle distance of 1,544 miles (or 2,485 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 Castle Airport and Valley International Airport, the route shown on this map most likely still appears to be a straight line.
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: | HRL / KHRL |
| Airport Name: | Valley International Airport |
| Location: | Harlingen, Texas, United States |
| GPS Coordinates: | 26°13'37"N by 97°39'18"W |
| Area Served: | Harlingen, Texas |
| Operator/Owner: | City of Harlingen |
| Airport Type: | Public |
| Elevation: | 36 feet (11 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from HRL |
| More Information: | HRL Maps & Info |
Facts about Castle Airport (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.
- The airport is located at the former Castle Air Force Base which closed in 1995.
- 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 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.
- 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 (MER) currently has only 1 runway.
Facts about Valley International Airport (HRL):
- The furthest airport from Valley International Airport (HRL) is Sir Gaëtan Duval Airport (RRG), which is located 11,151 miles (17,946 kilometers) away in Rodrigues Island, Mauritius.
- Because of Valley International Airport's relatively low elevation of 36 feet, planes can take off or land at Valley 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 Valley International Airport (HRL) is Brownsville/South Padre Island International Airport (BRO), which is located 26 miles (42 kilometers) SSE of HRL.
- Valley International Airport (HRL) has 3 runways.
- Valley International Airport covers 2,428 acres at an elevation of 36 feet.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 7.26 miles (11.68 km) SSE | Merced Regional Airport (MCE) | Merced, California, United States |     |
| 2 | 27.12 miles (43.65 km) NW | Modesto City-County Airport (MOD) | Modesto, California, United States | |
| 3 | 27.51 miles (44.27 km) SW | Los Banos Municipal Airport (LSN) | Los Banos, California, United States | |
| 4 | 29.78 miles (47.92 km) W | NASA Crows Landing Airport (NRC) | Crows Landing, California, United States | |
| 5 | 36.91 miles (59.40 km) SE | Madera Municipal Airport (MAE) | Madera, California, United States | |
| 6 | 45.69 miles (73.53 km) N | Columbia Airport (COA) | Columbia, California, United States | |
| 7 | 51.03 miles (82.13 km) NW | Stockton Metropolitan Airport (SCK) | Stockton, California, United States | |
| 8 | 57.32 miles (92.24 km) SW | Hollister Municipal Airport (HLI) | Hollister, California, United States | |
| 9 | 60.88 miles (97.98 km) SE | Fresno Chandler Executive AirportChandler Municipal Airport (Old) (FCH) | Fresno, California, United States | |
| 10 | 62.71 miles (100.91 km) SE | Fresno Yosemite International Airport (FAT) | Fresno, California, United States | |
| 11 | 68.82 miles (110.76 km) W | Reid-Hillview Airport of Santa Clara County (RHV) | San Jose, California, United States | |
| 12 | 71.93 miles (115.77 km) WNW | Livermore Municipal Airport (LVK) | Livermore, California, United States | |
| 13 | 73.96 miles (119.02 km) WSW | Watsonville Municipal Airport (WVI) | Watsonville, California, United States | |
| 14 | 74.75 miles (120.29 km) W | Norman Y. Mineta San Jose International Airport (SJC) | San Jose, California, United States | |
| 15 | 75.76 miles (121.93 km) SW | Salinas Municipal AirportSalinas Army Air Base (SNS) | Salinas, California, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,311.72 miles (18,204.41 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 11,301.64 miles (18,188.18 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 11,273.49 miles (18,142.87 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 4 | 11,260.93 miles (18,122.66 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 11,205.02 miles (18,032.69 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 6 | 11,196.39 miles (18,018.79 km) SSW | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 7 | 11,137.28 miles (17,923.67 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 11,111.96 miles (17,882.92 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 11,011.03 miles (17,720.49 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 10 | 11,008.37 miles (17,716.22 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 11 | 10,993.21 miles (17,691.82 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,972.89 miles (17,659.11 km) SSE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,963.56 miles (17,644.10 km) SSE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,945.21 miles (17,614.56 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,920.84 miles (17,575.35 km) SE | Belo sur Tsiribihina Airport (BMD) | Belo sur Tsiribihina, Madagascar | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 26.31 miles (42.34 km) SSE | Brownsville/South Padre Island International Airport (BRO) | Brownsville, Texas, United States | |
| 2 | 32.61 miles (52.48 km) SSE | General Servando Canales International Airport (MAM) | Matamoros, Tamaulipas, Mexico | |
| 3 | 36.35 miles (58.51 km) W | McAllen Miller International Airport (MFE) | McAllen, Texas, United States | |
| 4 | 38.63 miles (62.18 km) WSW | General Lucio Blanco International Airport (REX) | Reynosa, Mexico | |
| 5 | 88.95 miles (143.15 km) N | Naval Air Station Kingsville (NQI) | Kingsville, Texas, United States | |
| 6 | 103.69 miles (166.87 km) NNE | Naval Air Station Corpus Christi (NGP) | Corpus Christi, Texas, United States | |
| 7 | 107.04 miles (172.26 km) N | Corpus Christi International Airport (CRP) | Corpus Christi, Texas, United States | |
| 8 | 107.06 miles (172.29 km) NNW | Alice International Airport (ALI) | Alice, Texas, United States | |
| 9 | 133.82 miles (215.37 km) NNE | Aransas County Airport (RKP) | Rockport, Texas, United States | |
| 10 | 143.77 miles (231.38 km) NW | Laredo International Airport (LRD) | Laredo, Texas, United States | |
| 11 | 144.96 miles (233.29 km) NW | Quetzalcóatl International Airport (NLD) | Nuevo Laredo, Mexico | |
| 12 | 155.35 miles (250.02 km) W | General Mariano Escobedo International Airport (MTY) | Monterrey, Nuevo León, Mexico | |
| 13 | 181.47 miles (292.05 km) NNW | Cotulla–La Salle County Airport (COT) | Cotulla, Texas, United States | |
| 14 | 186.91 miles (300.81 km) NNE | Victoria Regional Airport (VCT) | Victoria, Texas, United States | |
| 15 | 192.46 miles (309.73 km) SSW | General Pedro J. Méndez International Airport (CVM) | Ciudad Victoria, Tamaulipas, Mexico | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,150.96 miles (17,945.69 km) ESE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 11,084.95 miles (17,839.45 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 3 | 10,824.54 miles (17,420.37 km) E | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 10,704.62 miles (17,227.37 km) E | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 5 | 10,701.48 miles (17,222.32 km) E | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,563.47 miles (17,000.21 km) WSW | Christmas Island Airport (XCH) | Christmas Island, Australia | |
| 7 | 10,550.33 miles (16,979.07 km) SSE | Fuvahmulah Airport (FVM) | Fuvahmulah, Maldives | |
| 8 | 10,502.90 miles (16,902.73 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 9 | 10,488.66 miles (16,879.83 km) SSE | Kaadedhdhoo Airport (KDM) | Kaadedhdhoo Island, Gaafu Dhaalu Atoll, Maldives | |
| 10 | 10,486.52 miles (16,876.37 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 11 | 10,474.16 miles (16,856.48 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 12 | 10,451.74 miles (16,820.40 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 13 | 10,433.34 miles (16,790.80 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 14 | 10,422.87 miles (16,773.94 km) W | RAAF Learmonth (LEA) | Exmouth, Western Australia, Australia | |
| 15 | 10,416.88 miles (16,764.30 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |