Nonstop flight route between Gamboma, Republic of the Congo and Montague, California, United States:
Departure Airport:

Arrival Airport:

Distance from GMM to SIY:
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- About this route
- GMM Airport Information
- SIY Airport Information
- Facts about GMM
- Facts about SIY
- Map of Nearest Airports to GMM
- List of Nearest Airports to GMM
- Map of Furthest Airports from GMM
- List of Furthest Airports from GMM
- Map of Nearest Airports to SIY
- List of Nearest Airports to SIY
- Map of Furthest Airports from SIY
- List of Furthest Airports from SIY
About this route:
A direct, nonstop flight between Gamboma Airport (GMM), Gamboma, Republic of the Congo and Siskiyou County Airport (SIY), Montague, California, United States would travel a Great Circle distance of 8,660 miles (or 13,938 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 Gamboma Airport and Siskiyou County 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 Gamboma Airport and Siskiyou County Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | GMM / FCOG |
Airport Name: | Gamboma Airport |
Location: | Gamboma, Republic of the Congo |
GPS Coordinates: | 1°52'1"S by 15°52'1"E |
Area Served: | Gamboma, Republic of the Congo |
Elevation: | 1509 feet (460 meters) |
View all routes: | Routes from GMM |
More Information: | GMM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SIY / KSIY |
Airport Names: |
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Location: | Montague, California, United States |
GPS Coordinates: | 41°46'53"N by 122°28'5"W |
Operator/Owner: | Siskiyou County |
Airport Type: | Public |
Elevation: | 2648 feet (807 meters) |
# of Runways: | 1 |
View all routes: | Routes from SIY |
More Information: | SIY Maps & Info |
Facts about Gamboma Airport (GMM):
- The furthest airport from Gamboma Airport (GMM) is Cassidy International Airport (CXI), which is located 11,968 miles (19,261 kilometers) away in Christmas Island, Kiribati.
- The closest airport to Gamboma Airport (GMM) is Oyo Ollombo Airport (OLL), which is located 45 miles (72 kilometers) N of GMM.
Facts about Siskiyou County Airport (SIY):
- Siskiyou County Airport (SIY) currently has only 1 runway.
- The closest airport to Siskiyou County Airport (SIY) is Montague Airport-Yreka Rohrer Field (RKC), which is located only 5 miles (9 kilometers) SW of SIY.
- In addition to being known as "Siskiyou County Airport", other names for SIY include "Siskiyou County Air Force Auxiliary Airfield" and "Siskiyou County Army Air Field".
- The furthest airport from Siskiyou County Airport (SIY) is Tôlanaro Airport (FTU), which is located 11,131 miles (17,914 kilometers) away in Tôlanaro, Madagascar.
- Following the initial military use, commercial operations of the airport continued.
- The Army Air Forces and the U.S.
- The United States Army Air Forces first leased the Siskiyou County Airport on 18 November 1942.