Nonstop flight route between Atwater, California, United States and Ubon Ratchathani, Thailand:
Departure Airport:

Arrival Airport:

Distance from MER to UBP:
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- About this route
- MER Airport Information
- UBP Airport Information
- Facts about MER
- Facts about UBP
- 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 UBP
- List of Nearest Airports to UBP
- Map of Furthest Airports from UBP
- List of Furthest Airports from UBP
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP), Ubon Ratchathani, Thailand would travel a Great Circle distance of 7,754 miles (or 12,479 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 Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี, 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 Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี. 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: | UBP / VTUU |
Airport Name: | Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี |
Location: | Ubon Ratchathani, Thailand |
GPS Coordinates: | 15°15'4"N by 104°52'12"E |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 406 feet (124 meters) |
# of Runways: | 1 |
View all routes: | Routes from UBP |
More Information: | UBP Maps & Info |
Facts about Castle Airport (MER):
- Since the mid-1940s, aircraft maintenance, fuel management, and fire training activities on the base have generated wastes that consist primarily of waste fuels, oils, solvents, and cleaners.
- 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.
- 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 (MER) currently has only 1 runway.
- 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 closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
Facts about Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP):
- During the Vietnam War the facility was known as Ubon Royal Thai Air Force Base, serving as a front-line base of the United States Air Force.
- The closest airport to Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP) is Savannakhet Airport (ZVK), which is located 90 miles (146 kilometers) N of UBP.
- The furthest airport from Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP) is Maria Reiche Neuman Airport (NZC), which is nearly antipodal to Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (meaning Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี is almost on the exact opposite side of the Earth from Maria Reiche Neuman Airport), and is located 12,407 miles (19,967 kilometers) away in Nazca, Ica Region, Peru.
- Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP) currently has only 1 runway.
- Because of Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี's relatively low elevation of 406 feet, planes can take off or land at Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี 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.