Nonstop flight route between Atwater, California, United States and Mariehamn, Åland Islands, Finland:
Departure Airport:

Arrival Airport:

Distance from MER to MHQ:
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- About this route
- MER Airport Information
- MHQ Airport Information
- Facts about MER
- Facts about MHQ
- 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 MHQ
- List of Nearest Airports to MHQ
- Map of Furthest Airports from MHQ
- List of Furthest Airports from MHQ
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Mariehamn Airport (MHQ), Mariehamn, Åland Islands, Finland would travel a Great Circle distance of 5,336 miles (or 8,587 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 Mariehamn 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 Mariehamn 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: | MHQ / EFMA |
Airport Names: |
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Location: | Mariehamn, Åland Islands, Finland |
GPS Coordinates: | 60°7'18"N by 19°53'47"E |
Area Served: | Mariehamn |
Operator/Owner: | Finavia |
Airport Type: | Public |
Elevation: | 17 feet (5 meters) |
# of Runways: | 1 |
View all routes: | Routes from MHQ |
More Information: | MHQ 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.
- 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.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- 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.
Facts about Mariehamn Airport (MHQ):
- The closest airport to Mariehamn Airport (MHQ) is Stockholm Arlanda Airport (ARN), which is located 76 miles (122 kilometers) WSW of MHQ.
- Mariehamn Airport handled 48,672 passengers last year.
- Mariehamn Airport (MHQ) currently has only 1 runway.
- Because of Mariehamn Airport's relatively low elevation of 17 feet, planes can take off or land at Mariehamn 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 addition to being known as "Mariehamn Airport", another name for MHQ is "Mariehamns flygplatsMaarianhaminan lentoasema".
- The furthest airport from Mariehamn Airport (MHQ) is Chatham Islands (CHT), which is located 11,120 miles (17,896 kilometers) away in Waitangi, Chatham Islands, New Zealand.