Nonstop flight route between San Diego / El Cajon, California, United States and Denis Island, Seychelles:
Departure Airport:

Arrival Airport:

Distance from SEE to DEI:
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- About this route
- SEE Airport Information
- DEI Airport Information
- Facts about SEE
- Facts about DEI
- Map of Nearest Airports to SEE
- List of Nearest Airports to SEE
- Map of Furthest Airports from SEE
- List of Furthest Airports from SEE
- Map of Nearest Airports to DEI
- List of Nearest Airports to DEI
- Map of Furthest Airports from DEI
- List of Furthest Airports from DEI
About this route:
A direct, nonstop flight between Gillespie Field (SEE), San Diego / El Cajon, California, United States and Denis Island Airport (DEI), Denis Island, Seychelles would travel a Great Circle distance of 10,376 miles (or 16,698 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 Gillespie Field and Denis 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 Gillespie Field and Denis 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: | SEE / KSEE |
Airport Name: | Gillespie Field |
Location: | San Diego / El Cajon, California, United States |
GPS Coordinates: | 32°49'33"N by 116°58'20"W |
Area Served: | San Diego, California |
Operator/Owner: | County of San Diego |
Airport Type: | Public |
Elevation: | 388 feet (118 meters) |
# of Runways: | 3 |
View all routes: | Routes from SEE |
More Information: | SEE Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | DEI / FSSD |
Airport Name: | Denis Island Airport |
Location: | Denis Island, Seychelles |
GPS Coordinates: | 3°48'1"S by 55°39'52"E |
Operator/Owner: | Denis Island |
Airport Type: | Private |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from DEI |
More Information: | DEI Maps & Info |
Facts about Gillespie Field (SEE):
- Gillespie Field is a county-owned public airport 10 miles northeast of downtown San Diego, in El Cajon, San Diego County, California.
- Gillespie Field (SEE) has 3 runways.
- In 1942 the United States Marine Corps chose a 688-acre site east of San Diego for parachute training for the newly forming Parachute battalions.
- The furthest airport from Gillespie Field (SEE) is Sir Gaëtan Duval Airport (RRG), which is located 11,534 miles (18,562 kilometers) away in Rodrigues Island, Mauritius.
- In 1946 the airfield was turned over to San Diego County and became a general aviation facility.
- Because of Gillespie Field's relatively low elevation of 388 feet, planes can take off or land at Gillespie Field 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 Gillespie Field (SEE) is Montgomery Field (MYF), which is located only 10 miles (16 kilometers) W of SEE.
Facts about Denis Island Airport (DEI):
- Denis Island Airport (DEI) currently has only 1 runway.
- The closest airport to Denis Island Airport (DEI) is Bird Island Airport (BDI), which is located 32 miles (51 kilometers) W of DEI.
- The furthest airport from Denis Island Airport (DEI) is Atuona Airport (AUQ), which is located 11,058 miles (17,797 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
- Because of Denis Island Airport's relatively low elevation of 10 feet, planes can take off or land at Denis 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.