Nonstop flight route between Fort Sill, Oklahoma, United States and Baltra Island, Galápagos Islands, Ecuador:
Departure Airport:

Arrival Airport:

Distance from FSI to GPS:
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- About this route
- FSI Airport Information
- GPS Airport Information
- Facts about FSI
- Facts about GPS
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to GPS
- List of Nearest Airports to GPS
- Map of Furthest Airports from GPS
- List of Furthest Airports from GPS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Seymour Airport (GPS), Baltra Island, Galápagos Islands, Ecuador would travel a Great Circle distance of 2,482 miles (or 3,994 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 relatively short distance between Henry Post Army Airfield and Seymour Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | GPS / SEGS |
Airport Name: | Seymour Airport |
Location: | Baltra Island, Galápagos Islands, Ecuador |
GPS Coordinates: | 0°27'14"S by 90°15'56"W |
Area Served: | Baltra, Galápagos Islands, Ecuador |
Airport Type: | Public / Military |
Elevation: | 207 feet (63 meters) |
# of Runways: | 1 |
View all routes: | Routes from GPS |
More Information: | GPS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Post Field served as a base for flight training for the Air Service.
Facts about Seymour Airport (GPS):
- Seymour Airport (GPS) currently has only 1 runway.
- By 30 September 1945, most personnel were withdrawn and only a housekeeping staff remained.
- The closest airport to Seymour Airport (GPS) is San Cristóbal Airport (SCY), which is located 55 miles (88 kilometers) SE of GPS.
- Because of Seymour Airport's relatively low elevation of 207 feet, planes can take off or land at Seymour 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 Seymour Airport (GPS) is Sultan Iskandar Muda International Airport (BTJ), which is located 11,911 miles (19,169 kilometers) away in Banda Aceh, Indonesia.