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

Arrival Airport:

Distance from UNI to SNA:
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- About this route
- UNI Airport Information
- SNA Airport Information
- Facts about UNI
- Facts about 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
- Map of Nearest Airports to SNA
- List of Nearest Airports to SNA
- Map of Furthest Airports from SNA
- List of Furthest Airports from SNA
About this route:
A direct, nonstop flight between Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines and John Wayne Airport (SNA), Santa Ana, California, United States 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 Union Island Airport and John Wayne 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 Union Island Airport and John Wayne Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival 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 |
Facts about Union Island Airport (UNI):
- 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.
- 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.
Facts about John Wayne Airport (SNA):
- John Wayne Airport (SNA) has 2 runways.
- 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.
- John Wayne Airport covers 500.82 acres.
- The closest airport to John Wayne Airport (SNA) is MCAS El Toro (NZJ), which is located only 8 miles (13 kilometers) E of SNA.
- 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.
- The original single runway was 4,800 feet long, oriented on a magnetic heading of 210 degrees and 30 degrees.
- After the Orange County Airport was renamed John Wayne Airport in 1979, the John Wayne Associates commissioned sculptor Robert Summers to create a bronze statue of "the Duke." The 9-foot statue, created at Hoka Hey Foundry in Dublin, Texas, was dedicated to the County on November 4, 1982.
- In 2011, additional terminal space was added and existing terminals were refreshed as part of a $543 million expansion project.
- On April 8, 2010, Canada's largest airline, Air Canada, started flights to Toronto, Canada, becoming the first ever international airline that served John Wayne Airport.