Nonstop flight route between Summit, Alaska, United States and Jeju, South Korea:
Departure Airport:

Arrival Airport:

Distance from UMM to CJU:
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- About this route
- UMM Airport Information
- CJU Airport Information
- Facts about UMM
- Facts about CJU
- 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 CJU
- List of Nearest Airports to CJU
- Map of Furthest Airports from CJU
- List of Furthest Airports from CJU
About this route:
A direct, nonstop flight between Summit Airport (UMM), Summit, Alaska, United States and Jeju International Airport (CJU), Jeju, South Korea would travel a Great Circle distance of 4,007 miles (or 6,449 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 Jeju International 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 Jeju International 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: | CJU / RKPC |
Airport Names: |
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Location: | Jeju, South Korea |
GPS Coordinates: | 33°30'41"N by 126°29'35"E |
Area Served: | Jeju Island |
Operator/Owner: | Korea Airports Corporation |
Airport Type: | Public |
Elevation: | 118 feet (36 meters) |
# of Runways: | 2 |
View all routes: | Routes from CJU |
More Information: | CJU Maps & Info |
Facts about Summit Airport (UMM):
- Summit Airport (UMM) currently has only 1 runway.
- 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.
- 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 Jeju International Airport (CJU):
- Jeju International Airport handled 20,055,238 passengers last year.
- The furthest airport from Jeju International Airport (CJU) is Treinta y Tres Airport (TYT), which is nearly antipodal to Jeju International Airport (meaning Jeju International Airport is almost on the exact opposite side of the Earth from Treinta y Tres Airport), and is located 12,384 miles (19,929 kilometers) away in Treinta y Tres, Treinta y Tres, Uruguay.
- Because of Jeju International Airport's relatively low elevation of 118 feet, planes can take off or land at Jeju International 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.
- Jeju International Airport (CJU) has 2 runways.
- The closest airport to Jeju International Airport (CJU) is Jeongseok / Jungseok Airport (JDG), which is located only 15 miles (24 kilometers) ESE of CJU.
- In addition to being known as "Jeju International Airport", other names for CJU include "제주국제공항 濟州國際空港", "Jeju Gukje Gonghang" and "Cheju Kukche Konghang".