Nonstop flight route between Summit, Alaska, United States and Monrovia, Liberia:
Departure Airport:

Arrival Airport:

Distance from UMM to ROB:
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- About this route
- UMM Airport Information
- ROB Airport Information
- Facts about UMM
- Facts about ROB
- 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 ROB
- List of Nearest Airports to ROB
- Map of Furthest Airports from ROB
- List of Furthest Airports from ROB
About this route:
A direct, nonstop flight between Summit Airport (UMM), Summit, Alaska, United States and Roberts International Airport Roberts Field (ROB), Monrovia, Liberia would travel a Great Circle distance of 7,172 miles (or 11,542 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 Roberts International Airport Roberts Field, 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 Roberts International Airport Roberts Field. 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: | ROB / GLRB |
Airport Name: | Roberts International Airport Roberts Field |
Location: | Monrovia, Liberia |
GPS Coordinates: | 6°14'2"N by 10°21'43"W |
Area Served: | Monrovia, Liberia |
Airport Type: | Public |
Elevation: | 31 feet (9 meters) |
# of Runways: | 1 |
View all routes: | Routes from ROB |
More Information: | ROB Maps & Info |
Facts about Summit Airport (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.
- The closest airport to Summit Airport (UMM) is McKinley National Park Airport (MCL), which is located 29 miles (46 kilometers) NNE of UMM.
Facts about Roberts International Airport Roberts Field (ROB):
- The airport is clearly the nation's busiest most important aviation facility, with the only connections to Europe and the United States.
- Roberts International Airport Roberts Field handled 133,656 passengers last year.
- At one point in the past, Roberts Airport was listed as an alternative landing site for NASA's Space Shuttle.
- The furthest airport from Roberts International Airport Roberts Field (ROB) is Nauru International Airport (INU), which is nearly antipodal to Roberts International Airport Roberts Field (meaning Roberts International Airport Roberts Field is almost on the exact opposite side of the Earth from Nauru International Airport), and is located 12,001 miles (19,314 kilometers) away in Yaren, Nauru.
- Roberts is the principal international airport in Liberia, and one of only two with paved runways in the nation.
- Because of Roberts International Airport Roberts Field's relatively low elevation of 31 feet, planes can take off or land at Roberts International Airport Roberts Field 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.
- Roberts International Airport Roberts Field (ROB) currently has only 1 runway.
- It was announced in October 2008 that U.S.
- The closest airport to Roberts International Airport Roberts Field (ROB) is Spriggs Payne Airport (MLW), which is located 27 miles (44 kilometers) W of ROB.