Nonstop flight route between Summit, Alaska, United States and Lethem, Guyana:
Departure Airport:

Arrival Airport:

Distance from UMM to LTM:
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- About this route
- UMM Airport Information
- LTM Airport Information
- Facts about UMM
- Facts about LTM
- Map of Nearest Airports to UMM
- List of Nearest Airports to UMM
- Map of Furthest Airports from UMM
- List of Furthest Airports from UMM
- Map of Nearest Airports to LTM
- List of Nearest Airports to LTM
- Map of Furthest Airports from LTM
- List of Furthest Airports from LTM
About this route:
A direct, nonstop flight between Summit Airport (UMM), Summit, Alaska, United States and Lethem Airport (LTM), Lethem, Guyana would travel a Great Circle distance of 5,990 miles (or 9,639 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 Summit Airport and Lethem 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 Summit Airport and Lethem Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | UMM / PAST |
Airport Name: | Summit Airport |
Location: | Summit, Alaska, United States |
GPS Coordinates: | 63°19'53"N by 149°7'37"W |
Area Served: | Summit, Alaska |
Operator/Owner: | Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 2409 feet (734 meters) |
# of Runways: | 1 |
View all routes: | Routes from UMM |
More Information: | UMM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | LTM / SYLT |
Airport Name: | Lethem Airport |
Location: | Lethem, Guyana |
GPS Coordinates: | 3°22'21"N by 59°47'21"W |
Area Served: | Lethem, Guyana, Upper Takutu-Upper Essequibo, Guyana |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 351 feet (107 meters) |
View all routes: | Routes from LTM |
More Information: | LTM Maps & Info |
Facts about Summit Airport (UMM):
- The closest airport to Summit Airport (UMM) is McKinley National Park Airport (MCL), which is located 29 miles (46 kilometers) NNE of UMM.
- The furthest airport from Summit Airport (UMM) is Port Elizabeth International Airport (PLZ), which is located 10,397 miles (16,732 kilometers) away in Port Elizabeth, South Africa.
- Summit Airport (UMM) currently has only 1 runway.
Facts about Lethem Airport (LTM):
- The closest airport to Lethem Airport (LTM) is Boa Vista-Atlas Brasil Cantanhede International Airport (BVB), which is located 72 miles (116 kilometers) WSW of LTM.
- Because of Lethem Airport's relatively low elevation of 351 feet, planes can take off or land at Lethem 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 Lethem Airport (LTM) is Andi Jemma Airport (MXB), which is nearly antipodal to Lethem Airport (meaning Lethem Airport is almost on the exact opposite side of the Earth from Andi Jemma Airport), and is located 12,380 miles (19,924 kilometers) away in Masamba, Indonesia.