Nonstop flight route between British Columbia, Canada and Agana, Guam:
Departure Airport:

Arrival Airport:

Distance from YAL to UAM:
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- About this route
- YAL Airport Information
- UAM Airport Information
- Facts about YAL
- Facts about UAM
- Map of Nearest Airports to YAL
- List of Nearest Airports to YAL
- Map of Furthest Airports from YAL
- List of Furthest Airports from YAL
- Map of Nearest Airports to UAM
- List of Nearest Airports to UAM
- Map of Furthest Airports from UAM
- List of Furthest Airports from UAM
About this route:
A direct, nonstop flight between Alert Bay Airport (YAL), British Columbia, Canada and Andersen Air Force Base (UAM), Agana, Guam would travel a Great Circle distance of 5,416 miles (or 8,717 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 Alert Bay Airport and Andersen Air Force Base, 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 Alert Bay Airport and Andersen Air Force Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | YAL / CYAL |
Airport Name: | Alert Bay Airport |
Location: | British Columbia, Canada |
GPS Coordinates: | 50°34'55"N by 126°54'56"W |
Operator/Owner: | Corporation of Village of Alert Bay |
Airport Type: | Public |
Elevation: | 240 feet (73 meters) |
# of Runways: | 1 |
View all routes: | Routes from YAL |
More Information: | YAL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | UAM / PGUA |
Airport Name: | Andersen Air Force Base |
Location: | Agana, Guam |
GPS Coordinates: | 13°34'51"N by 144°55'27"E |
View all routes: | Routes from UAM |
More Information: | UAM Maps & Info |
Facts about Alert Bay Airport (YAL):
- The furthest airport from Alert Bay Airport (YAL) is East London Airport (ELS), which is located 10,675 miles (17,179 kilometers) away in East London, South Africa.
- Alert Bay Airport (YAL) currently has only 1 runway.
- The closest airport to Alert Bay Airport (YAL) is Port McNeill Airport (YMP), which is located only 5 miles (8 kilometers) W of YAL.
- Because of Alert Bay Airport's relatively low elevation of 240 feet, planes can take off or land at Alert Bay 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.
Facts about Andersen Air Force Base (UAM):
- Andersen Air Force Base's origins begin on 7 December 1941 when Guam was attacked by the armed forces of Imperial Japan in the Battle of Guam three hours after the Attack on Pearl Harbor.
- Guam was considered as being ideal to establish air bases to launch B-29 Superfortress operations against the Japanese Home Islands.
- The closest airport to Andersen Air Force Base (UAM) is Guam International Airport (GUM), which is located only 11 miles (17 kilometers) SW of UAM.
- The 19th Bombardment Wing was formed at North AFB in 1948 from the resources of the former North Guam Air Force Base Command.
- The furthest airport from Andersen Air Force Base (UAM) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Andersen Air Force Base (meaning Andersen Air Force Base is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,214 miles (19,656 kilometers) away in Salvador, Bahia, Brazil.
- With the start of Operation Arc Light in June 1965, B-52s and KC-135s began regular bombing missions over Vietnam, and continued in that capacity until 1973, with a break between August 1970 and early 1972.
- The first host unit at North Field was the 314th Bombardment Wing, XXI Bomber Command, Twentieth Air Force.
- At Andersen, the wing assumed responsibility for administering two active and one semi-active bases plus an assortment of communication, weather, radar, rescue and other facilities and units including the Marianas Air Material Area, a wing size unit.