Nonstop flight route between Atwater, California, United States and Ottawa, Ontario, Canada:
Departure Airport:

Arrival Airport:

Distance from MER to YRO:
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- About this route
- MER Airport Information
- YRO Airport Information
- Facts about MER
- Facts about YRO
- 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 YRO
- List of Nearest Airports to YRO
- Map of Furthest Airports from YRO
- List of Furthest Airports from YRO
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Ottawa/Rockcliffe Airport (YRO), Ottawa, Ontario, Canada would travel a Great Circle distance of 2,361 miles (or 3,800 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 Ottawa/Rockcliffe 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: | YRO / CYRO |
Airport Name: | Ottawa/Rockcliffe Airport |
Location: | Ottawa, Ontario, Canada |
GPS Coordinates: | 45°27'37"N by 75°38'45"W |
Operator/Owner: | Rockcliffe Flying Club |
Airport Type: | Public |
Elevation: | 188 feet (57 meters) |
# of Runways: | 1 |
View all routes: | Routes from YRO |
More Information: | YRO Maps & Info |
Facts about Castle Airport (MER):
- 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 closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
- With its central location in the San Joaquin Valley, on the route of the proposed California High-Speed Rail system, and with a large, underdeveloped site, Castle Airport has been submitted as a possible location for the central maintenance facility for the system.
- 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.
- Castle Airport (MER) currently has only 1 runway.
Facts about Ottawa/Rockcliffe Airport (YRO):
- Because of Ottawa/Rockcliffe Airport's relatively low elevation of 188 feet, planes can take off or land at Ottawa/Rockcliffe 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 Ottawa/Rockcliffe Airport (YRO) is Margaret River Airport (MGV), which is located 11,458 miles (18,440 kilometers) away in Margaret River, Western Australia, Australia.
- During the 1970s the airport was also used for scheduled short takeoff and landing commercial flights to the short-lived Victoria STOLport near downtown Montreal.
- Ottawa/Rockcliffe Airport (YRO) currently has only 1 runway.
- The closest airport to Ottawa/Rockcliffe Airport (YRO) is Gatineau-Ottawa Executive Airport (YND), which is located only 6 miles (9 kilometers) NE of YRO.
- The airport land was originally a military rifle range.
- The military importance of the airport declined after World War II, since the runways were too short for typical jet operations.