Nonstop flight route between Alconbury, England, United Kingdom and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from AYH to MER:
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- About this route
- AYH Airport Information
- MER Airport Information
- Facts about AYH
- Facts about MER
- Map of Nearest Airports to AYH
- List of Nearest Airports to AYH
- Map of Furthest Airports from AYH
- List of Furthest Airports from AYH
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
About this route:
A direct, nonstop flight between RAF AlconburyUSAAF Station 102 (AYH), Alconbury, England, United Kingdom and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 5,277 miles (or 8,492 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 RAF AlconburyUSAAF Station 102 and Castle 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 RAF AlconburyUSAAF Station 102 and Castle Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | AYH / EGWZ |
Airport Name: | RAF AlconburyUSAAF Station 102 |
Location: | Alconbury, England, United Kingdom |
GPS Coordinates: | 52°21'47"N by 0°13'22"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from AYH |
More Information: | AYH Maps & Info |
Arrival 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 |
Facts about RAF AlconburyUSAAF Station 102 (AYH):
- In 1937, Royal Air Force Bomber Command was drawing up plans for dispersal of their aircraft in the event of air raids on its stations.
- The closest airport to RAF AlconburyUSAAF Station 102 (AYH) is Cambridge International Airport (CBG), which is located 20 miles (32 kilometers) ESE of AYH.
- In September 1939, RAF Upwood squadrons were given operational training roles and Alconbury became RAF Wyton's satellite under No.
- In late 1940/41, an expansion of RAF Alconbury commenced to upgrade its facilities from a satellite airfield to a fully operational one.
- The furthest airport from RAF AlconburyUSAAF Station 102 (AYH) is Chatham Islands (CHT), which is located 11,821 miles (19,024 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The 501 CSW ensures United Kingdom-based air base groups are resourced, sustained, trained and equipped to exacting command standards in order to provide mission support that enables United States and NATO war fighters to conduct full spectrum flying operations during expeditionary deployments, theatre munitions movements, global command and control communications to forward deployed locations, support for theatre intelligence operations and joint/combined training.
- While this work was in progress, No.
- RAF Alconbury and RAF Molesworth are the last Second World War-era Eighth Air Force bases in Britain that are still actively in use and controlled by the United States Air Force.
- Also in 1942, to bring the station up to Class A airfield standards, the runways were extended to 2,000 yards, and 1,400 yards, with 26 additional hardstands along with the taxiways altered.
Facts about Castle Airport (MER):
- 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 furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- The airport is located at the former Castle Air Force Base which closed in 1995.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of 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.