Nonstop flight route between Falalop Island, Yap, Federated States of Micronesia and Camp San Luis Obispo, California, United States:
Departure Airport:

Arrival Airport:

Distance from ULI to CSL:
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- About this route
- ULI Airport Information
- CSL Airport Information
- Facts about ULI
- Facts about CSL
- Map of Nearest Airports to ULI
- List of Nearest Airports to ULI
- Map of Furthest Airports from ULI
- List of Furthest Airports from ULI
- Map of Nearest Airports to CSL
- List of Nearest Airports to CSL
- Map of Furthest Airports from CSL
- List of Furthest Airports from CSL
About this route:
A direct, nonstop flight between Falalop Airfield (ULI), Falalop Island, Yap, Federated States of Micronesia and O'Sullivan Army Heliport (CSL), Camp San Luis Obispo, California, United States would travel a Great Circle distance of 6,343 miles (or 10,208 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 Falalop Airfield and O'Sullivan Army Heliport, 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 Falalop Airfield and O'Sullivan Army Heliport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ULI / |
Airport Name: | Falalop Airfield |
Location: | Falalop Island, Yap, Federated States of Micronesia |
GPS Coordinates: | 10°1'14"N by 139°47'22"E |
View all routes: | Routes from ULI |
More Information: | ULI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CSL / KCSL |
Airport Name: | O'Sullivan Army Heliport |
Location: | Camp San Luis Obispo, California, United States |
GPS Coordinates: | 35°19'33"N by 120°44'35"W |
Operator/Owner: | United States Army |
Airport Type: | Military |
Elevation: | 250 feet (76 meters) |
View all routes: | Routes from CSL |
More Information: | CSL Maps & Info |
Facts about Falalop Airfield (ULI):
- Marine Air Group 45 deployed to Falalop in late September to establish base operations.
- Fleet Air Wing One was based at Falalop from 15 October until 30 December 1944 when it was relocated to Saipan.
- The closest airport to Falalop Airfield (ULI) is Yap International Airport (YAP), which is located 122 miles (196 kilometers) WSW of ULI.
- The furthest airport from Falalop Airfield (ULI) is Petrolina–Senador Nilo Coelho Airport (PNZ), which is nearly antipodal to Falalop Airfield (meaning Falalop Airfield is almost on the exact opposite side of the Earth from Petrolina–Senador Nilo Coelho Airport), and is located 12,385 miles (19,931 kilometers) away in Petrolina, Pernambuco, Brazil.
- Falalop Airfield or Naval Air Base Ulithi is a former World War II airfield on the island of Falalop, part of Ulithi Atoll in the Caroline Islands.
Facts about O'Sullivan Army Heliport (CSL):
- The furthest airport from O'Sullivan Army Heliport (CSL) is Pierrefonds Airport (ZSE), which is located 11,442 miles (18,414 kilometers) away in Saint-Pierre, Réunion.
- The closest airport to O'Sullivan Army Heliport (CSL) is San Luis Obispo County Regional Airport (SBP), which is located only 8 miles (14 kilometers) SE of CSL.
- Because of O'Sullivan Army Heliport's relatively low elevation of 250 feet, planes can take off or land at O'Sullivan Army Heliport 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.