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

Arrival Airport:

Distance from ROB to UMM:
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- About this route
- ROB Airport Information
- UMM Airport Information
- Facts about ROB
- Facts about 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
- Map of Nearest Airports to UMM
- List of Nearest Airports to UMM
- Map of Furthest Airports from UMM
- List of Furthest Airports from UMM
About this route:
A direct, nonstop flight between Roberts International Airport Roberts Field (ROB), Monrovia, Liberia and Summit Airport (UMM), Summit, Alaska, United States 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 Roberts International Airport Roberts Field and Summit 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 Roberts International Airport Roberts Field and Summit Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival 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 |
Facts about Roberts International Airport Roberts Field (ROB):
- 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.
- 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.
- 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 International Airport Roberts Field (ROB) currently has only 1 runway.
- However, just one week prior to the inaugural flight, Delta announced that its planned launch would be suspended indefinitely.
- Roberts International Airport Roberts Field handled 133,656 passengers last year.
- Roberts International Airport, informally known as Robertsfield, is an international airport in the West African nation of Liberia.
- During the Second Liberian Civil War, the main terminal building suffered major damage, and remains vacant and unenclosed.
Facts about Summit Airport (UMM):
- 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.
- 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.