Nonstop flight route between Rockland, Maine, United States and Ube, Yamaguchi Prefecture, Japan:
Departure Airport:
(44°3'36"N by 69°5'57"W)
Arrival Airport:
(33°55'47"N by 131°16'42"E)
Distance from RKD to UBJ:
6,897.76 miles (11,100.83 km)
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Jump to:
- About this route
- RKD Airport Information
- UBJ Airport Information
- Facts about RKD
- Facts about UBJ
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
- Map of Nearest Airports to UBJ
- List of Nearest Airports to UBJ
- Map of Furthest Airports from UBJ
- List of Furthest Airports from UBJ
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Yamaguchi Ube Airport (UBJ), Ube, Yamaguchi Prefecture, Japan would travel a Great Circle distance of 6,898 miles (or 11,101 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 Knox County Regional Airport and Yamaguchi Ube 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 Knox County Regional Airport and Yamaguchi Ube Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | RKD / KRKD |
| Airport Name: | Knox County Regional Airport |
| Location: | Rockland, Maine, United States |
| GPS Coordinates: | 44°3'36"N by 69°5'57"W |
| Area Served: | Rockland, Maine |
| Operator/Owner: | Knox County |
| Airport Type: | Public |
| Elevation: | 56 feet (17 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RKD |
| More Information: | RKD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | UBJ / RJDC |
| Airport Names: |
|
| Location: | Ube, Yamaguchi Prefecture, Japan |
| GPS Coordinates: | 33°55'47"N by 131°16'42"E |
| Area Served: | Ube |
| Airport Type: | Public |
| Elevation: | 15 feet (5 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from UBJ |
| More Information: | UBJ Maps & Info |
Facts about Knox County Regional Airport (RKD):
- After the war, it was operated by the City of Rockland until 1968.
- Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County Regional 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.
- Knox County Regional Airport (RKD) has 2 runways.
- The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.
- During the summer months, the airport is one of Maine's busiest, with significant private jet operations bringing visitors to the numerous summer colonies in the Penobscot Bay region.
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
Facts about Yamaguchi Ube Airport (UBJ):
- The closest airport to Yamaguchi Ube Airport (UBJ) is Kokura Airport (KKJ), which is located 20 miles (32 kilometers) WSW of UBJ.
- Because of Yamaguchi Ube Airport's relatively low elevation of 15 feet, planes can take off or land at Yamaguchi Ube 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.
- Yamaguchi Ube Airport (UBJ) currently has only 1 runway.
- The furthest airport from Yamaguchi Ube Airport (UBJ) is Rio Grande Regional Airport (RIG), which is nearly antipodal to Yamaguchi Ube Airport (meaning Yamaguchi Ube Airport is almost on the exact opposite side of the Earth from Rio Grande Regional Airport), and is located 12,200 miles (19,634 kilometers) away in Rio Grande, Brazil.
- In addition to being known as "Yamaguchi Ube Airport", other names for UBJ include "山口宇部空港" and "Yamaguchi Ube Kūkō".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 31.23 miles (50.26 km) WSW | Wiscasset Airport (ISS) | Wiscasset, Maine, United States |     |
| 2 | 38.99 miles (62.74 km) WNW | Augusta State Airport (AUG) | Augusta, Maine, United States | |
| 3 | 43.32 miles (69.71 km) WSW | Naval Air Station Brunswick (NHZ) | Brunswick, Maine, United States | |
| 4 | 43.38 miles (69.82 km) NW | Waterville Robert Lafleur Airport (WVL) | Waterville, Maine, United States | |
| 5 | 45.35 miles (72.99 km) NE | Hancock County-Bar Harbor Airport (BHB) | Bar Harbor, Maine, United States | |
| 6 | 53.33 miles (85.83 km) NNE | Bangor International Airport (BGR) | Bangor, Maine, United States | |
| 7 | 58.82 miles (94.66 km) W | Auburn/Lewiston Municipal Airport (LEW) | Auburn/Lewiston, Maine, United States | |
| 8 | 59.05 miles (95.03 km) NW | Central Maine Airport of Norridgewock (OWK) | Norridgewock, Maine, United States | |
| 9 | 65.12 miles (104.80 km) NNE | Old Town Municipal Airport (OLD) | Old Town, Maine, United States | |
| 10 | 66.73 miles (107.38 km) WSW | Portland International Jetport (PWM) | Portland, Maine, United States | |
| 11 | 91.96 miles (148.00 km) W | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 12 | 92.58 miles (148.99 km) WSW | Sanford Seacoast Regional Airport (SFM) | Sanford, Maine, United States | |
| 13 | 108.65 miles (174.86 km) WNW | Berlin Regional Airport (BML) | Berlin, New Hampshire, United States | |
| 14 | 109.11 miles (175.59 km) NE | Princeton Municipal Airport (PNN) | Princeton, Maine, United States | |
| 15 | 109.78 miles (176.68 km) SW | Portsmouth International Airport at Pease (PSM) | Portsmouth, New Hampshire, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,707.78 miles (18,841.79 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,704.56 miles (18,836.61 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,701.73 miles (18,832.06 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 11,680.66 miles (18,798.16 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,655.50 miles (18,757.66 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,634.75 miles (18,724.26 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,567.46 miles (18,615.98 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,566.96 miles (18,615.17 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 11,555.62 miles (18,596.91 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,511.65 miles (18,526.16 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 11,459.54 miles (18,442.29 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,374.24 miles (18,305.01 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 11,372.20 miles (18,301.73 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,361.85 miles (18,285.08 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,361.47 miles (18,284.47 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 20.09 miles (32.34 km) WSW | Kokura Airport (KKJ) | Kita Kyūshū, Kyūshū, Japan | |
| 2 | 40.79 miles (65.65 km) SE | Oita Airport (OIT) | Oita, Japan | |
| 3 | 53.17 miles (85.56 km) WSW | Fukuoka Airport (FUK) | Fukuoka, Japan | |
| 4 | 59.27 miles (95.38 km) NNE | Iwami Airport (IWJ) | Masuda, Shimane, Japan, Japan | |
| 5 | 77.90 miles (125.37 km) SW | Saga Airport (HSG) | Saga, Kyūshū, Japan | |
| 6 | 79.36 miles (127.71 km) SSW | Kumamoto Airport (KMJ) | Mashiki, Kumamoto Prefecture, Japan | |
| 7 | 81.83 miles (131.69 km) E | Matsuyama Airport (MYJ) | Matsuyama, Ehime, Japan | |
| 8 | 86.57 miles (139.33 km) W | Iki Airport (IKI) | Iki, Iki Island, Japan | |
| 9 | 100.09 miles (161.08 km) ENE | Hiroshima Airport (HIJ) | Hiroshima, Honshū, Japan | |
| 10 | 105.33 miles (169.52 km) SW | Nagasaki Airport (NGS) | Nagasaki, Japan | |
| 11 | 137.44 miles (221.19 km) NE | Izumo Airport (IZO) | Izumo, Shimane, Japan | |
| 12 | 139.90 miles (225.15 km) E | Kōchi Airport (KCZ) | Kōchi, Japan | |
| 13 | 142.18 miles (228.81 km) S | Miyazaki Airport (KMI) | Miyazaki, Miyazaki Prefecture, Japan | |
| 14 | 150.51 miles (242.22 km) SSW | Kagoshima Airport (KOJ) | Kagoshima, Japan | |
| 15 | 155.13 miles (249.65 km) NE | Miho-Yonago Airport (YGJ) | Yonago, Tottori, Japan | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,200.00 miles (19,633.95 km) ESE | Rio Grande Regional Airport (RIG) | Rio Grande, Brazil | |
| 2 | 12,177.36 miles (19,597.51 km) SE | Pelotas International Airport (PET) | Pelotas, Rio Grande do Sul, Brazil | |
| 3 | 12,129.29 miles (19,520.14 km) SSE | Salgado Filho International Airport (POA) | Porto Alegre, Rio Grande do Sul, Brazil | |
| 4 | 12,108.98 miles (19,487.47 km) E | Treinta y Tres Airport (TYT) | Treinta y Tres, Treinta y Tres, Uruguay | |
| 5 | 12,100.25 miles (19,473.42 km) ESE | Cerro Largo International Airport (MLZ) | Melo, Cerro Largo, Uruguay | |
| 6 | 12,077.69 miles (19,437.10 km) ESE | Comandante Gustavo Kraemer International Airport (BGX) | Bagé, Rio Grande do Sul, Brazil | |
| 7 | 12,074.77 miles (19,432.41 km) S | Diomício Freitas/Forquilhinha Airport (CCM) | Criciúma, Santa Catarina, Brazil | |
| 8 | 12,067.94 miles (19,421.43 km) ESE | Capitán de Corbeta Carlos A. Curbelo International Airport (PDP) | Maldonado/Punta del Este, Maldonado, Uruguay | |
| 9 | 12,064.18 miles (19,415.37 km) ESE | Cerro Largo International Airport (VCH) | Vichadero, Rivera, Uruguay | |
| 10 | 12,024.43 miles (19,351.39 km) SE | Santa Maria Airport (RIA) | Santa Maria, Rio Grande do Sul, Brazil | |
| 11 | 12,015.41 miles (19,336.88 km) E | Carrasco/General Cesáreo L. Berisso International Airport (MVD) | Montevideo, Montevideo, Uruguay | |
| 12 | 12,004.18 miles (19,318.80 km) S | Florianópolis-Hercílio Luz International Airport (FLN) | Florianópolis, Santa Catarina, Brazil | |
| 13 | 12,002.08 miles (19,315.43 km) SSE | Antônio Correia Pinto de Macedo Airport (LAJ) | Lages, Santa Catarina, Brazil | |
| 14 | 11,993.32 miles (19,301.33 km) ESE | Pres. Gral. Óscar D. Gestido International Airport (RVY) | Rivera, Rivera, Uruguay | |
| 15 | 11,992.38 miles (19,299.82 km) ESE | Tacuarembó Airport (TAW) | Tacuarembó, Tacuarembó, Uruguay | |