Nonstop flight route between Falalop Island, Yap, Federated States of Micronesia and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from ULI to FSI:
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- About this route
- ULI Airport Information
- FSI Airport Information
- Facts about ULI
- Facts about FSI
- 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 FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Falalop Airfield (ULI), Falalop Island, Yap, Federated States of Micronesia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 7,542 miles (or 12,137 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 Henry Post Army Airfield, 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 Henry Post Army Airfield. 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: | 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 |
Facts about Falalop Airfield (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.
- The airfield remains in use today.
- Units stationed at Falalop included VMD-354 operating photo-reconnaissance F4Us and VMF-542 operating F6F-3N night-fighters.
- The closest airport to Falalop Airfield (ULI) is Yap International Airport (YAP), which is located 122 miles (196 kilometers) WSW of ULI.
- Fleet Air Wing One was based at Falalop from 15 October until 30 December 1944 when it was relocated to Saipan.
- Ulithi Atoll was captured unopposed on 20 September 1944.
Facts about Henry Post Army Airfield (FSI):
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.