Nonstop flight route between Atwater, California, United States and Nukuʻalofa, Tongatapu, Tonga:
Departure Airport:

Arrival Airport:

Distance from MER to TBU:
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- About this route
- MER Airport Information
- TBU Airport Information
- Facts about MER
- Facts about TBU
- 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 TBU
- List of Nearest Airports to TBU
- Map of Furthest Airports from TBU
- List of Furthest Airports from TBU
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Fuaʻamotu International Airport (TBU), Nukuʻalofa, Tongatapu, Tonga would travel a Great Circle distance of 5,384 miles (or 8,664 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 Fuaʻamotu International 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 Fuaʻamotu International 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: | TBU / NFTF |
Airport Name: | Fuaʻamotu International Airport |
Location: | Nukuʻalofa, Tongatapu, Tonga |
GPS Coordinates: | 21°14'27"S by 175°8'57"W |
Area Served: | Nukuʻalofa, Tonga |
Operator/Owner: | Ministry of Civil Aviation |
Airport Type: | Public |
Elevation: | 126 feet (38 meters) |
# of Runways: | 2 |
View all routes: | Routes from TBU |
More Information: | TBU 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.
- 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.
- 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.
- 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.
Facts about Fuaʻamotu International Airport (TBU):
- Because of Fuaʻamotu International Airport's relatively low elevation of 126 feet, planes can take off or land at Fuaʻamotu 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 Fuaʻamotu International Airport (TBU) is Lifuka Island Airport (HPA), which is located 114 miles (183 kilometers) NNE of TBU.
- Fuaʻamotu is a total controlled aerodrome and all traffic are guide by air traffic control.
- The furthest airport from Fuaʻamotu International Airport (TBU) is Aguenar – Hadj Bey Akhamok Airport (TMR), which is nearly antipodal to Fuaʻamotu International Airport (meaning Fuaʻamotu International Airport is almost on the exact opposite side of the Earth from Aguenar – Hadj Bey Akhamok Airport), and is located 12,322 miles (19,830 kilometers) away in Tamanrasset, Algeria.
- Until August 2006, Peau Vavaʻu used a DC-3 on their domestic routes, but this has recently been replaced with a Jetstream 41.
- Some short-haul international flights such as to Fiji or American Samoa also operate from Vavaʻu Island's Lupepauʻu Airport from time to time.
- Fuaʻamotu International Airport (TBU) has 2 runways.
- Fuaʻamotu International Airport is an international airport in Tonga.
- It is the strength of the runway rather than the length that restricts operations from Fuaʻamotu.