Nonstop flight route between Atwater, California, United States and Bongao, Tawi-Tawi, Philippines:
Departure Airport:

Arrival Airport:

Distance from MER to TWT:
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- About this route
- MER Airport Information
- TWT Airport Information
- Facts about MER
- Facts about TWT
- 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 TWT
- List of Nearest Airports to TWT
- Map of Furthest Airports from TWT
- List of Furthest Airports from TWT
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Sanga-Sanga Airport (TWT), Bongao, Tawi-Tawi, Philippines would travel a Great Circle distance of 7,586 miles (or 12,208 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 Sanga-Sanga 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 Sanga-Sanga 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: | TWT / RPMN |
Airport Names: |
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Location: | Bongao, Tawi-Tawi, Philippines |
GPS Coordinates: | 5°2'48"N by 119°44'34"E |
Area Served: | Bongao, Tawi-Tawi |
Operator/Owner: | Civil Aviation Authority of the Philippines |
Airport Type: | Public |
Elevation: | 16 feet (5 meters) |
# of Runways: | 1 |
View all routes: | Routes from TWT |
More Information: | TWT 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.
- Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
- It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.
- 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.
- The airport is located at the former Castle Air Force Base which closed in 1995.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
Facts about Sanga-Sanga Airport (TWT):
- The new runway was inaugurated on August 17, 2009 by Ambassador Kristie Kenney and local officials.
- Currently, the airport runway is being extended to 1,930 meters through partnerships between the DOTC, the CAAP, the United States Agency for International Development, the regional government of the Autonomous Region in Muslim Mindanao and the Tawi-Tawi provincial government.
- The closest airport to Sanga-Sanga Airport (TWT) is Semporna Airport (SMM), which is located 89 miles (143 kilometers) WSW of TWT.
- In addition to being known as "Sanga-Sanga Airport", another name for TWT is "Paliparan ng Sanga-Sanga".
- Because of Sanga-Sanga Airport's relatively low elevation of 16 feet, planes can take off or land at Sanga-Sanga 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.
- Sanga-Sanga Airport (TWT) currently has only 1 runway.
- Sanga-Sanga Airport handled 8,663 passengers last year.
- The furthest airport from Sanga-Sanga Airport (TWT) is Ponta Pelada Airport (PLL), which is nearly antipodal to Sanga-Sanga Airport (meaning Sanga-Sanga Airport is almost on the exact opposite side of the Earth from Ponta Pelada Airport), and is located 12,304 miles (19,802 kilometers) away in Manaus, Amazonas, Brazil.