Nonstop flight route between Santa Ana, California, United States and Union Island, Saint Vincent and the Grenadines:
Departure Airport:

Arrival Airport:

Distance from SNA to UNI:
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- About this route
- SNA Airport Information
- UNI Airport Information
- Facts about SNA
- Facts about UNI
- Map of Nearest Airports to SNA
- List of Nearest Airports to SNA
- Map of Furthest Airports from SNA
- List of Furthest Airports from SNA
- Map of Nearest Airports to UNI
- List of Nearest Airports to UNI
- Map of Furthest Airports from UNI
- List of Furthest Airports from UNI
About this route:
A direct, nonstop flight between John Wayne Airport (SNA), Santa Ana, California, United States and Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines would travel a Great Circle distance of 3,819 miles (or 6,145 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 John Wayne Airport and Union Island 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 John Wayne Airport and Union Island Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SNA / KSNA |
Airport Name: | John Wayne Airport |
Location: | Santa Ana, California, United States |
GPS Coordinates: | 33°40'32"N by 117°52'5"W |
Area Served: | Orange County, California |
Operator/Owner: | Orange County |
Airport Type: | Public |
Elevation: | 56 feet (17 meters) |
# of Runways: | 2 |
View all routes: | Routes from SNA |
More Information: | SNA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | UNI / TVSU |
Airport Name: | Union Island Airport |
Location: | Union Island, Saint Vincent and the Grenadines |
GPS Coordinates: | 12°35'54"N by 61°24'52"W |
Area Served: | Union Island |
Airport Type: | Public |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from UNI |
More Information: | UNI Maps & Info |
Facts about John Wayne Airport (SNA):
- The furthest airport from John Wayne Airport (SNA) is Pierrefonds Airport (ZSE), which is located 11,490 miles (18,491 kilometers) away in Saint-Pierre, Réunion.
- During the 1950s, the only airline flights were Bonanza's few flights between Los Angeles and Phoenix, via San Diego.
- The closest airport to John Wayne Airport (SNA) is MCAS El Toro (NZJ), which is located only 8 miles (13 kilometers) E of SNA.
- Martin and James Irvine made a deal for a five-year lease on 80 acres for $35 a month and founded a flying school on land owned by the Irvine Company.
- Because of John Wayne Airport's relatively low elevation of 56 feet, planes can take off or land at John Wayne 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.
- John Wayne Airport is an international airport in Orange County, California, with its mailing address in the city of Santa Ana, hence the IATA airport code.
- Terminals A and B were built in 1990 to replace the former Eddie Martin Terminal which was closed upon the new terminals' opening.
- John Wayne Airport (SNA) has 2 runways.
Facts about Union Island Airport (UNI):
- The furthest airport from Union Island Airport (UNI) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Union Island Airport (meaning Union Island Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,203 miles (19,639 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.
- The closest airport to Union Island Airport (UNI) is Canouan Airport (CIW), which is located only 8 miles (14 kilometers) NE of UNI.
- Union Island Airport (UNI) currently has only 1 runway.
- Because of Union Island Airport's relatively low elevation of 14 feet, planes can take off or land at Union Island 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.