Nonstop flight route between Cheong ju, South Korea and Port Alexander, Alaska, United States:
Departure Airport:
(36°42'59"N by 127°29'57"E)
Arrival Airport:
(56°14'48"N by 134°38'53"W)
Distance from CJJ to PTD:
4,431.41 miles (7,131.64 km)
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Jump to:
- About this route
- CJJ Airport Information
- PTD Airport Information
- Facts about CJJ
- Facts about PTD
- Map of Nearest Airports to CJJ
- List of Nearest Airports to CJJ
- Map of Furthest Airports from CJJ
- List of Furthest Airports from CJJ
- Map of Nearest Airports to PTD
- List of Nearest Airports to PTD
- Map of Furthest Airports from PTD
- List of Furthest Airports from PTD
About this route:
A direct, nonstop flight between Cheongju International Airport (CJJ), Cheong ju, South Korea and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States would travel a Great Circle distance of 4,431 miles (or 7,132 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 Cheongju International Airport and Port Alexander Seaplane Base, 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 Cheongju International Airport and Port Alexander Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CJJ / RKTU |
| Airport Names: |
|
| Location: | Cheong ju, South Korea |
| GPS Coordinates: | 36°42'59"N by 127°29'57"E |
| Area Served: | Cheongju, Daejeon, & Sejong |
| Operator/Owner: | Korea Airports Corporation, Republic of Korea Airforce |
| Airport Type: | Public/Military |
| Elevation: | 191 feet (58 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from CJJ |
| More Information: | CJJ Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | PTD / PAAP |
| Airport Names: |
|
| Location: | Port Alexander, Alaska, United States |
| GPS Coordinates: | 56°14'48"N by 134°38'53"W |
| Area Served: | Port Alexander, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PTD |
| More Information: | PTD Maps & Info |
Facts about Cheongju International Airport (CJJ):
- Cheongju International Airport (CJJ) has 2 runways.
- The furthest airport from Cheongju International Airport (CJJ) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is nearly antipodal to Cheongju International Airport (meaning Cheongju International Airport is almost on the exact opposite side of the Earth from Capitán de Corbeta Carlos A. Curbelo International Airport), and is located 12,243 miles (19,703 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.
- Cheongju International Airport handled 1,032,484 passengers last year.
- The closest airport to Cheongju International Airport (CJJ) is Yecheon Air Base (YEC), which is located 48 miles (77 kilometers) E of CJJ.
- Because of Cheongju International Airport's relatively low elevation of 191 feet, planes can take off or land at Cheongju 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.
- In addition to being known as "Cheongju International Airport", other names for CJJ include "청주국제공항 淸州國際空港", "Cheongju Gukje Gonghang" and "Ch'ŏngju Kukche Konghang".
Facts about Port Alexander Seaplane Base (PTD):
- Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander Seaplane Base 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.
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
- The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.
- The closest airport to Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 47.78 miles (76.90 km) E | Yecheon Air Base (YEC) | Yecheon, South Korea |     |
| 2 | 54.69 miles (88.02 km) NNW | Seoul Air Base (SSN) | Seongnam, South Korea | |
| 3 | 55.97 miles (90.07 km) NNE | Wonju Airport (WJU) | Wonju, South Korea | |
| 4 | 70.04 miles (112.71 km) NNW | Gimpo International Airport (GMP) | Seoul, South Korea | |
| 5 | 70.04 miles (112.71 km) NNW | Gimpo International Airport (SEL) | Seoul, South Korea | |
| 6 | 74.63 miles (120.11 km) SW | Gunsan Airport (KUV) | Gunsan, South Korea | |
| 7 | 77.92 miles (125.40 km) NW | Incheon International Airport (ICN) | Incheon (near Seoul), South Korea | |
| 8 | 86.01 miles (138.41 km) SE | Daegu International Airport (TAE) | Daegu, South Korea | |
| 9 | 106.99 miles (172.18 km) NE | Gangneung Airbase (KAG) | Kangnung (Gangneung), South Korea | |
| 10 | 115.52 miles (185.92 km) NNE | Sokcho Airport (SHO) | Sokcho, South Korea | |
| 11 | 116.45 miles (187.41 km) SSW | Gwangju Airport (KWJ) | Gwangju (Kwangju), South Korea | |
| 12 | 116.93 miles (188.18 km) SSE | Sacheon Airport (HIN) | Sacheon, South Korea | |
| 13 | 118.16 miles (190.16 km) ESE | Pohang Airport (KPO) | Pohang, South Korea | |
| 14 | 133.25 miles (214.45 km) SE | Gimhae International Airport (PUS) | Busan, South Korea | |
| 15 | 149.10 miles (239.96 km) SSW | Mokpo Airport (MPK) | Mokpo, South Korea | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,242.73 miles (19,702.72 km) SE | Capitán de Corbeta Carlos A. Curbelo International Airport (PDP) | Maldonado/Punta del Este, Maldonado, Uruguay | |
| 2 | 12,200.20 miles (19,634.27 km) ESE | Carrasco/General Cesáreo L. Berisso International Airport (MVD) | Montevideo, Montevideo, Uruguay | |
| 3 | 12,184.31 miles (19,608.70 km) E | Villa Gesell Airport (VLG) | Villa Gesell, Buenos Aires, Argentina | |
| 4 | 12,172.00 miles (19,588.88 km) SSE | Treinta y Tres Airport (TYT) | Treinta y Tres, Treinta y Tres, Uruguay | |
| 5 | 12,145.72 miles (19,546.59 km) ESE | Astor Piazzolla International Airport (MDQ) | Mar del Plata, Buenos Aires Province, Argentina | |
| 6 | 12,124.46 miles (19,512.37 km) ESE | Miramar Airport (MJR) | Miramar, Buenos Aires, Argentina | |
| 7 | 12,119.13 miles (19,503.80 km) SSE | Cerro Largo International Airport (MLZ) | Melo, Cerro Largo, Uruguay | |
| 8 | 12,115.99 miles (19,498.75 km) S | Rio Grande Regional Airport (RIG) | Rio Grande, Brazil | |
| 9 | 12,112.85 miles (19,493.69 km) SE | Santa Bernardina International Airport (DZO) | Durazno, Durazno, Uruguay | |
| 10 | 12,111.61 miles (19,491.70 km) ESE | La Plata Airport (LPG) | La Plata, Buenos Aires, Argentina | |
| 11 | 12,102.12 miles (19,476.42 km) ESE | Laguna de los Patos International Airport (CYR) | Colonia del Sacramento, Colonia, Uruguay | |
| 12 | 12,091.18 miles (19,458.81 km) S | Pelotas International Airport (PET) | Pelotas, Rio Grande do Sul, Brazil | |
| 13 | 12,074.13 miles (19,431.38 km) ESE | Ministro Pistarini International Airport (EZE) | Ezeiza (near Buenos Aires), Argentina | |
| 14 | 12,072.86 miles (19,429.33 km) SSE | Cerro Largo International Airport (VCH) | Vichadero, Rivera, Uruguay | |
| 15 | 12,072.80 miles (19,429.23 km) ESE | Jorge Newbery Airfield (AEP) | Buenos Aires, Argentina | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 39.98 miles (64.34 km) E | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| 2 | 40.21 miles (64.71 km) E | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| 3 | 55.24 miles (88.91 km) ESE | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 4 | 56.78 miles (91.38 km) NNE | Kake Airport (KAE) | Kake, Alaska, United States | |
| 5 | 59.38 miles (95.57 km) E | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 6 | 61.29 miles (98.64 km) ESE | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 7 | 61.58 miles (99.10 km) NNW | Sitka Rocky Gutierrez Airport (SIT) | Sitka, Alaska, United States | |
| 8 | 71.67 miles (115.35 km) ESE | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 9 | 75.33 miles (121.23 km) ENE | Petersburg James A. Johnson Airport (PSG) | Petersburg, Alaska, United States | |
| 10 | 76.38 miles (122.92 km) SE | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 11 | 78.74 miles (126.71 km) SE | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 12 | 85.40 miles (137.44 km) SE | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 13 | 86.86 miles (139.79 km) N | Angoon Seaplane Base (AGN) | Angoon, Alaska, United States | |
| 14 | 88.33 miles (142.16 km) N | Chatham Seaplane Base (CYM) | Chatham, Alaska, United States | |
| 15 | 88.72 miles (142.78 km) ENE | Wrangell Airport (WRG) | Wrangell, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,639.80 miles (17,123.05 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,636.65 miles (17,117.99 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,628.00 miles (17,104.07 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,554.56 miles (16,985.87 km) SE | George Airport (GRJ) | George, South Africa | |
| 5 | 10,550.30 miles (16,979.02 km) SSE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,537.99 miles (16,959.21 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,469.73 miles (16,849.35 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,459.21 miles (16,832.43 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,444.62 miles (16,808.94 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 10 | 10,442.29 miles (16,805.19 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,427.82 miles (16,781.91 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,427.52 miles (16,781.43 km) SSE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,426.91 miles (16,780.44 km) SSE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 14 | 10,410.61 miles (16,754.20 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,407.54 miles (16,749.28 km) SSE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |