Nonstop flight route between Seward, Alaska, United States and Haiphong, Vietnam:
Departure Airport:
(60°7'36"N by 149°25'8"W)
Arrival Airport:
(20°49'9"N by 106°43'28"E)
Distance from SWD to HPH:
5,434.60 miles (8,746.13 km)
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Jump to:
- About this route
- SWD Airport Information
- HPH Airport Information
- Facts about SWD
- Facts about HPH
- Map of Nearest Airports to SWD
- List of Nearest Airports to SWD
- Map of Furthest Airports from SWD
- List of Furthest Airports from SWD
- Map of Nearest Airports to HPH
- List of Nearest Airports to HPH
- Map of Furthest Airports from HPH
- List of Furthest Airports from HPH
About this route:
A direct, nonstop flight between Seward Airport (SWD), Seward, Alaska, United States and Cat Bi International Airport (HPH), Haiphong, Vietnam would travel a Great Circle distance of 5,435 miles (or 8,746 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 Seward Airport and Cat Bi 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 Seward Airport and Cat Bi 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: | SWD / PAWD |
| Airport Name: | Seward Airport |
| Location: | Seward, Alaska, United States |
| GPS Coordinates: | 60°7'36"N by 149°25'8"W |
| Area Served: | Seward, Alaska |
| Operator/Owner: | Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 22 feet (7 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SWD |
| More Information: | SWD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | HPH / VVCI |
| Airport Names: |
|
| Location: | Haiphong, Vietnam |
| GPS Coordinates: | 20°49'9"N by 106°43'28"E |
| Operator/Owner: | Northern Airports Services Company |
| Airport Type: | Public |
| Elevation: | 13 feet (4 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HPH |
| More Information: | HPH Maps & Info |
Facts about Seward Airport (SWD):
- Seward Airport (SWD) has 2 runways.
- Because of Seward Airport's relatively low elevation of 22 feet, planes can take off or land at Seward 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.
- The furthest airport from Seward Airport (SWD) is Port Elizabeth International Airport (PLZ), which is located 10,617 miles (17,086 kilometers) away in Port Elizabeth, South Africa.
- The closest airport to Seward Airport (SWD) is Chenega Bay Airport (NCN), which is located 49 miles (79 kilometers) E of SWD.
Facts about Cat Bi International Airport (HPH):
- Cat Bi International Airport (HPH) currently has only 1 runway.
- The furthest airport from Cat Bi International Airport (HPH) is Diego Aracena International Airport (IQQ), which is nearly antipodal to Cat Bi International Airport (meaning Cat Bi International Airport is almost on the exact opposite side of the Earth from Diego Aracena International Airport), and is located 12,236 miles (19,692 kilometers) away in Iquique, Chile.
- Because of Cat Bi International Airport's relatively low elevation of 13 feet, planes can take off or land at Cat Bi 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 "Cat Bi International Airport", another name for HPH is "Sân bay Quốc tế Cát Bi".
- The closest airport to Cat Bi International Airport (HPH) is Nội Bài International Airport (HAN), which is located 65 miles (105 kilometers) WNW of HPH.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 49.26 miles (79.28 km) E | Chenega Bay Airport (NCN) | Chenega, Alaska, United States |     |
| 2 | 60.43 miles (97.25 km) WNW | Soldotna Airport (SXQ) | Soldotna, Alaska, United States | |
| 3 | 69.61 miles (112.03 km) WNW | Kenai Municipal Airport (ENA) | Kenai, Alaska, United States | |
| 4 | 74.97 miles (120.65 km) NNW | Ted Stevens Anchorage International Airport (ANC) | Anchorage, Alaska, United States | |
| 5 | 76.45 miles (123.03 km) N | Merrill Field (MRI) | Anchorage, Alaska, United States | |
| 6 | 78.70 miles (126.66 km) WSW | Homer Airport (HOM) | Homer, Alaska, United States | |
| 7 | 78.79 miles (126.80 km) N | Elmendorf Air Force Base (EDF) | Anchorage, Alaska, United States | |
| 8 | 78.86 miles (126.92 km) N | Bryant Army Airfield (FRN) | Fort Richardson, Anchorage, Alaska, United States | |
| 9 | 87.78 miles (141.26 km) NW | Tyonek Airport (TYE) | Tyonek, Alaska, United States | |
| 10 | 90.87 miles (146.24 km) NW | Beluga Airport (BVU) | Beluga, Alaska, United States | |
| 11 | 92.46 miles (148.80 km) WSW | Seldovia Airport (SOV) | Seldovia, Alaska, United States | |
| 12 | 98.27 miles (158.15 km) N | Big Lake Airport (BGQ) | Big Lake, Alaska, United States | |
| 13 | 99.75 miles (160.54 km) WSW | Port Graham Airport (PGM) | Port Graham, Alaska, United States | |
| 14 | 99.92 miles (160.81 km) N | Wasilla Airport (WWA) | Wasilla, Alaska, United States | |
| 15 | 102.04 miles (164.22 km) N | Palmer Municipal Airport (PAQ) | Palmer, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,616.64 miles (17,085.78 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,594.47 miles (17,050.10 km) SSE | George Airport (GRJ) | George, South Africa | |
| 3 | 10,593.15 miles (17,047.98 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 4 | 10,560.72 miles (16,995.79 km) S | East London Airport (ELS) | East London, South Africa | |
| 5 | 10,550.26 miles (16,978.95 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 6 | 10,460.13 miles (16,833.91 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,414.58 miles (16,760.60 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,345.77 miles (16,649.86 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,340.78 miles (16,641.83 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 10 | 10,335.79 miles (16,633.80 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 11 | 10,335.73 miles (16,633.70 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,330.80 miles (16,625.77 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,328.60 miles (16,622.23 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 14 | 10,313.37 miles (16,597.73 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 15 | 10,304.43 miles (16,583.34 km) S | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 65.37 miles (105.20 km) WNW | Nội Bài International Airport (HAN) | Hanoi, Vietnam | |
| 2 | 103.19 miles (166.06 km) SW | Tho Xuan Airport (THD) | Thanh Hoa, Vietnam | |
| 3 | 154.65 miles (248.88 km) NE | Nanning Wuxu International Airport (NNG) | Nanning, Guangxi, China | |
| 4 | 159.36 miles (256.47 km) SSW | Vinh Airport (VII) | Vinh, Nghe An, Vietnam | |
| 5 | 172.84 miles (278.16 km) ENE | Beihai Fucheng Airport (BHY) | Beihai, Guangxi, China | |
| 6 | 200.95 miles (323.40 km) N | Baise Bama Airport (AEB) | Baise, Guangxi, China | |
| 7 | 235.92 miles (379.68 km) E | Zhanjiang Airport (ZHA) | Zhanjiang, Guangdong, China | |
| 8 | 242.88 miles (390.88 km) W | Dien Bien Phu Airport (DIN) | Dien Bien Phu, Vietnam | |
| 9 | 243.62 miles (392.07 km) NW | Wenshan Puzhehei Airport (WNH) | Wenshan, Yunnan, China | |
| 10 | 246.65 miles (396.94 km) SE | Sanya Phoenix International Airport (SYX) | Sanya, Hainan, China | |
| 11 | 249.45 miles (401.45 km) ESE | Haikou Meilan International Airport (HAK) | Haikou, Hainan, China | |
| 12 | 249.60 miles (401.69 km) WSW | Xieng Khouang Airport (XKH) | Xieng Khouang, Laos | |
| 13 | 273.50 miles (440.15 km) SSW | Nakhon Phanom Airport (KOP) | Nakhon Phanom, Thailand | |
| 14 | 280.88 miles (452.04 km) NNE | Hechi Jinchengjiang Airport (HCJ) | Hechi, Guangxi, China | |
| 15 | 289.41 miles (465.76 km) NE | Liuzhou Bailian Airport (LZH) | Liuzhou, Guangxi, China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,235.84 miles (19,691.63 km) W | Diego Aracena International Airport (IQQ) | Iquique, Chile | |
| 2 | 12,204.67 miles (19,641.46 km) SW | Carolina Airport (CLN) | Carolina, Maranhão, Brazil | |
| 3 | 12,186.88 miles (19,612.83 km) SSW | Ilo Airport (ILQ) | Ilo, Moquegua Region, Peru | |
| 4 | 12,180.52 miles (19,602.59 km) SW | Chacalluta International Airport (ARI) | Arica, Chile | |
| 5 | 12,180.52 miles (19,602.59 km) SW | Chacalluta International Airport (ACM) | Arica, Amazonas, Colombia | |
| 6 | 12,180.47 miles (19,602.51 km) SW | Andrés Sabella Gálvez International Airport (former Cerro Moreno International Airport) (ANF) | Antofagasta, Chile | |
| 7 | 12,133.28 miles (19,526.58 km) WSW | El Loa Airport (CJC) | Calama, Antofagasta Region, Chile | |
| 8 | 12,108.16 miles (19,486.14 km) SSW | Rodríguez Ballón International Airport (AQP) | Arequipa, Peru | |
| 9 | 12,020.13 miles (19,344.48 km) SSW | Chañaral Airport (CNR) | Chañaral, Atacama Region, Chile | |
| 10 | 12,020.08 miles (19,344.39 km) W | Uyuni Joya Andina Airport (UYU) | Uyuni, Potosí, Bolivia | |
| 11 | 12,014.18 miles (19,334.91 km) SSW | Inca Manco Cápac International Airport (JUL) | Juliaca, Peru | |
| 12 | 12,010.02 miles (19,328.20 km) SSE | Maria Reiche Neuman Airport (NZC) | Nazca, Ica Region, Peru | |
| 13 | 11,997.09 miles (19,307.40 km) SSW | Ricardo García Posada Airport El Salvador Bajo Airport (ESR) | El Salvador, Chile | |
| 14 | 11,990.54 miles (19,296.86 km) SW | El Alto International Airport (LPB) | La Paz, Bolivia | |
| 15 | 11,954.26 miles (19,238.47 km) SSW | Chamonate Airfield (CPO) | Copiapó, Atacama Region, Chile | |