About this route:

A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 701 miles (or 1,129 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 Seattle–Tacoma 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: SEA / KSEA
Airport Names:
  1. Seattle–Tacoma International Airport
  2. Sea–Tac Airport
Location: SeaTac (near Seattle and Tacoma), Washington, United States
GPS Coordinates: 47°26'56"N by 122°18'33"W
Area Served: Seattle; Tacoma, Washington, US
Airport Type: Public
Elevation: 433 feet (132 meters)
# of Runways: 3
View all routes: Routes from SEA
More Information: SEA Maps & Info

Facts about Castle Airport (MER):

  • The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of 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.
  • Castle Airport (MER) currently has only 1 runway.
  • 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.
  • The airport is located at the former Castle Air Force Base which closed in 1995.
  • 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 Seattle–Tacoma International Airport (SEA):

  • Seattle–Tacoma International Airport (SEA) has 3 runways.
  • Interstate 5 and its offshoot Interstate 405 intersect very close to the airport, and most people use private vehicles to arrive at the airport.
  • The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
  • Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
  • Citing increased landing fees and other costs due to the aforementioned work at the airport, Southwest Airlines threatened in 2005 to move to nearby Boeing Field.
  • A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
  • Starting in the late 1980s, the Port of Seattle and a council representing local county governments considered the future of air traffic in the region and predicted that airport could reach capacity by 2000.
  • The top five carriers at the airport in number of passengers carried in 2012 were Alaska Airlines, Horizon Air, Delta Air Lines, Southwest Airlines, and United Airlines.
  • The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
  • Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
  • In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
  • In 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
  • Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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 two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
  • The North Satellite Terminal has only received limited upgrades and is in need of modernization.
  • The three parallel runways run nearly north–south, west of the passenger terminal, and are 8,500 to 11,900 feet long.

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 Seattle–Tacoma International Airport:

List of Nearest Airports to Seattle–Tacoma International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
15.33 miles (8.58 km) NERenton Municipal Airport (RNT)Renton, Washington, United StatesView Renton Municipal Airport on a map Set RNT as destination Airport Set RNT as destination Airport Get more information about Renton Municipal Airport
25.62 miles (9.04 km) NKing County International Airport (BFI)Seattle, Washington, United StatesView King County International Airport on a map Set BFI as destination Airport Set BFI as destination Airport Get more information about King County International Airport
312.51 miles (20.13 km) NKenmore Air Harbor Seaplane Base (LKE)Seattle, Washington, United StatesView Kenmore Air Harbor Seaplane Base on a map Set LKE as destination Airport Set LKE as destination Airport Get more information about Kenmore Air Harbor Seaplane Base
417.72 miles (28.53 km) SWTacoma Narrows Airport (TIW)Tacoma, Washington, United StatesView Tacoma Narrows Airport on a map Set TIW as destination Airport Set TIW as destination Airport Get more information about Tacoma Narrows Airport
521.26 miles (34.21 km) NKenmore Air (KEH)Kenmore, Washington, United StatesView Kenmore Air on a map Set KEH as destination Airport Set KEH as destination Airport Get more information about Kenmore Air
621.46 miles (34.53 km) WBremerton National Airport (PWT)Bremerton, Washington, United StatesView Bremerton National Airport on a map Set PWT as destination Airport Set PWT as destination Airport Get more information about Bremerton National Airport
722.88 miles (36.81 km) SSWMcChord Field/McChord AFB (TCM)Tacoma, Washington, United StatesView McChord Field/McChord AFB on a map Set TCM as destination Airport Set TCM as destination Airport Get more information about McChord Field/McChord AFB
828.54 miles (45.93 km) SSWGray Army Airfield (GRF)Tacoma, Washington, United StatesView Gray Army Airfield on a map Set GRF as destination Airport Set GRF as destination Airport Get more information about Gray Army Airfield
931.62 miles (50.88 km) NPaine Field (PAE)Everett, Washington, United StatesView Paine Field on a map Set PAE as destination Airport Set PAE as destination Airport Get more information about Paine Field
1041.96 miles (67.53 km) WSWSanderson Field (SHN)Shelton, Washington, United StatesView Sanderson Field on a map Set SHN as destination Airport Set SHN as destination Airport Get more information about Sanderson Field
1143.27 miles (69.63 km) SWOlympia Regional Airport (OLM)Olympia, Washington, United StatesView Olympia Regional Airport on a map Set OLM as destination Airport Set OLM as destination Airport Get more information about Olympia Regional Airport
1247.85 miles (77.00 km) NNWJefferson County International AirportPort Townsend Army Airfield (TWD)Port Townsend, Washington, United StatesView Jefferson County International AirportPort Townsend Army Airfield on a map Set TWD as destination Airport Set TWD as destination Airport Get more information about Jefferson County International AirportPort Townsend Army Airfield
1354.30 miles (87.39 km) ESEEaston State Airport (ESW)Easton, Washington, United StatesView Easton State Airport on a map Set ESW as destination Airport Set ESW as destination Airport Get more information about Easton State Airport
1457.98 miles (93.31 km) NNWA.J. Eisenberg Airport (ODW)Oak Harbor, Washington, United StatesView A.J. Eisenberg Airport on a map Set ODW as destination Airport Set ODW as destination Airport Get more information about A.J. Eisenberg Airport
1560.61 miles (97.54 km) NWSequim Valley Airport (SQV)Sequim, Washington, United StatesView Sequim Valley Airport on a map Set SQV as destination Airport Set SQV as destination Airport Get more information about Sequim Valley Airport

Map of Furthest Airports from Seattle–Tacoma International Airport:

List of Furthest Airports from Seattle–Tacoma International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,780.57 miles (17,349.60 km) SSETôlanaro 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
210,711.84 miles (17,239.00 km) SSEAmpanihy 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
310,627.16 miles (17,102.72 km) SPierrefonds 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
410,597.73 miles (17,055.36 km) SRoland 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
510,593.10 miles (17,047.90 km) ESEMargate Airport (MGH)Margate, KwaZulu-Natal, South AfricaView Margate Airport on a map Set MGH as destination Airport Set MGH as destination Airport Get more information about Margate Airport
610,590.63 miles (17,043.93 km) ESEEast London Airport (ELS)East London, South AfricaView East London Airport on a map Set ELS as destination Airport Set ELS as destination Airport Get more information about East London Airport
710,572.96 miles (17,015.49 km) ESEPort Alfred Airport (AFD)Port Alfred, South AfricaView Port Alfred Airport on a map Set AFD as destination Airport Set AFD as destination Airport Get more information about Port Alfred Airport
810,569.98 miles (17,010.68 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
910,560.89 miles (16,996.07 km) ESEKing Shaka International (DUR)Durban, KwaZulu-Natal, South AfricaView King Shaka International on a map Set DUR as destination Airport Set DUR as destination Airport Get more information about King Shaka International
1010,557.29 miles (16,990.27 km) ESEMthatha Airport (UTT)Mthatha, South AfricaView Mthatha Airport on a map Set UTT as destination Airport Set UTT as destination Airport Get more information about Mthatha Airport
1110,553.55 miles (16,984.25 km) SERichards Bay Airport (RCB)Richards Bay, KwaZulu-Natal, South AfricaView Richards Bay Airport on a map Set RCB as destination Airport Set RCB as destination Airport Get more information about Richards Bay Airport
1210,549.98 miles (16,978.50 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
1310,545.58 miles (16,971.42 km) SSEFianarantsoa 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
1410,535.73 miles (16,955.57 km) ESEPort Elizabeth International Airport (PLZ)Port Elizabeth, South AfricaView Port Elizabeth International Airport on a map Set PLZ as destination Airport Set PLZ as destination Airport Get more information about Port Elizabeth International Airport
1510,534.00 miles (16,952.79 km) ESEPietermaritzburg Airport (PZB)Pietermaritzburg, South AfricaView Pietermaritzburg Airport on a map Set PZB as destination Airport Set PZB as destination Airport Get more information about Pietermaritzburg Airport