Nonstop flight route between Portsmouth, New Hampshire, United States and Thanh Hoa, Vietnam:
Departure Airport:
(43°4'41"N by 70°49'23"W)
Arrival Airport:
(19°54'6"N by 105°28'4"E)
Distance from PSM to THD:
8,078.93 miles (13,001.75 km)
Share this route:
Jump to:
- About this route
- PSM Airport Information
- THD Airport Information
- Facts about PSM
- Facts about THD
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
- Map of Nearest Airports to THD
- List of Nearest Airports to THD
- Map of Furthest Airports from THD
- List of Furthest Airports from THD
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Tho Xuan Airport (THD), Thanh Hoa, Vietnam would travel a Great Circle distance of 8,079 miles (or 13,002 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 Portsmouth International Airport at Pease and Tho Xuan 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 Portsmouth International Airport at Pease and Tho Xuan Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | PSM / KPSM |
| Airport Name: | Portsmouth International Airport at Pease |
| Location: | Portsmouth, New Hampshire, United States |
| GPS Coordinates: | 43°4'41"N by 70°49'23"W |
| Area Served: | Portsmouth, New Hampshire |
| Operator/Owner: | Pease Development Authority |
| Airport Type: | Public / Military |
| Elevation: | 100 feet (30 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PSM |
| More Information: | PSM Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | THD / |
| Airport Names: |
|
| Location: | Thanh Hoa, Vietnam |
| GPS Coordinates: | 19°54'6"N by 105°28'4"E |
| Operator/Owner: | Vietnam People's Air Force |
| Airport Type: | Military, planned for civilian use in 2013 |
| View all routes: | Routes from THD |
| More Information: | THD Maps & Info |
Facts about Portsmouth International Airport at Pease (PSM):
- The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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 Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
- The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
- The airport is located within the Pease International Tradeport, a result of the ongoing redevelopment of the former Pease Air Force Base which was closed under Base Realignment and Closure Commission action in the late 1980s and early 1990s.
Facts about Tho Xuan Airport (THD):
- The closest airport to Tho Xuan Airport (THD) is Vinh Airport (VII), which is located 82 miles (131 kilometers) S of THD.
- The furthest airport from Tho Xuan Airport (THD) is Ilo Airport (ILQ), which is nearly antipodal to Tho Xuan Airport (meaning Tho Xuan Airport is almost on the exact opposite side of the Earth from Ilo Airport), and is located 12,178 miles (19,599 kilometers) away in Ilo, Moquegua Region, Peru.
- In addition to being known as "Tho Xuan Airport", other names for THD include "THD[1]" and "VV01[verification needed]".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 22.58 miles (36.34 km) NNE | Sanford Seacoast Regional Airport (SFM) | Sanford, Maine, United States |     |
| 2 | 29.19 miles (46.98 km) SSW | Lawrence Municipal Airport (LWM) | Lawrence, Massachusetts, United States | |
| 3 | 32.53 miles (52.35 km) WSW | Manchester–Boston Regional Airport (MHT) | Manchester, New Hampshire, United States | |
| 4 | 34.45 miles (55.44 km) S | Beverly Municipal Airport (BVY) | Beverly, Massachusetts, United States | |
| 5 | 35.29 miles (56.80 km) WNW | Concord Municipal Airport (CON) | Concord, New Hampshire, United States | |
| 6 | 40.53 miles (65.23 km) WSW | Nashua Airport (ASH) | Nashua, New Hampshire, United States | |
| 7 | 45.44 miles (73.12 km) NW | Laconia Municipal Airport (LCI) | Laconia, New Hampshire, United States | |
| 8 | 46.98 miles (75.61 km) NNE | Portland International Jetport (PWM) | Portland, Maine, United States | |
| 9 | 48.19 miles (77.56 km) SSW | Laurence G. Hanscom Field (BED) | Bedford, Massachusetts, United States | |
| 10 | 50.27 miles (80.90 km) S | Boston Logan International Airport (BOS) | Boston, Massachusetts, United States | |
| 11 | 52.79 miles (84.95 km) SW | Moore Army Airfield (AYE) | Leominster, Massachusetts, United States | |
| 12 | 62.58 miles (100.71 km) WSW | Jaffrey Airport - Silver Ranch Airpark (AFN) | Jaffrey, New Hampshire, United States | |
| 13 | 63.39 miles (102.02 km) N | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 14 | 63.85 miles (102.75 km) SSW | Norwood Memorial Airport (OWD) | Norwood, Massachusetts, United States | |
| 15 | 70.61 miles (113.64 km) WSW | Gardner Municipal Airport (GDM) | Gardner, Massachusetts, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,728.69 miles (18,875.45 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,721.96 miles (18,864.62 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,709.16 miles (18,844.03 km) SW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 4 | 11,706.15 miles (18,839.18 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,680.00 miles (18,797.09 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,643.56 miles (18,738.45 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,596.81 miles (18,663.21 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 11,594.69 miles (18,659.81 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,582.73 miles (18,640.55 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,496.62 miles (18,501.97 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,495.19 miles (18,499.67 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 12 | 11,405.66 miles (18,355.59 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,403.27 miles (18,351.74 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 11,373.84 miles (18,304.37 km) SW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,370.22 miles (18,298.56 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 81.57 miles (131.28 km) S | Vinh Airport (VII) | Vinh, Nghe An, Vietnam | |
| 2 | 93.77 miles (150.91 km) NNE | Nội Bài International Airport (HAN) | Hanoi, Vietnam | |
| 3 | 103.19 miles (166.06 km) NE | Cat Bi International Airport (HPH) | Haiphong, Vietnam | |
| 4 | 152.96 miles (246.16 km) WSW | Xieng Khouang Airport (XKH) | Xieng Khouang, Laos | |
| 5 | 182.15 miles (293.14 km) SSW | Nakhon Phanom Airport (KOP) | Nakhon Phanom, Thailand | |
| 6 | 189.66 miles (305.23 km) WNW | Dien Bien Phu Airport (DIN) | Dien Bien Phu, Vietnam | |
| 7 | 214.84 miles (345.75 km) W | Luang Prabang International Airport (LPQ) | Luang Prabang, Laos | |
| 8 | 231.30 miles (372.23 km) SW | Wattay International Airport (VTE) | Vientiane, Laos | |
| 9 | 231.54 miles (372.62 km) WNW | Oudomsay Airport (ODY) | Muang Xay, Laos | |
| 10 | 235.74 miles (379.39 km) SSW | Savannakhet Airport (ZVK) | Savannakhet, Laos | |
| 11 | 246.91 miles (397.37 km) SW | Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) | Udon Thani, Thailand | |
| 12 | 247.49 miles (398.29 km) W | Sayaboury Airport (ZBY) | Sayaboury, Laos | |
| 13 | 255.53 miles (411.23 km) NE | Nanning Wuxu International Airport (NNG) | Nanning, Guangxi, China | |
| 14 | 263.27 miles (423.70 km) NNW | Wenshan Puzhehei Airport (WNH) | Wenshan, Yunnan, China | |
| 15 | 271.91 miles (437.59 km) ENE | Beihai Fucheng Airport (BHY) | Beihai, Guangxi, China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,178.48 miles (19,599.32 km) SW | Ilo Airport (ILQ) | Ilo, Moquegua Region, Peru | |
| 2 | 12,151.34 miles (19,555.64 km) W | Diego Aracena International Airport (IQQ) | Iquique, Chile | |
| 3 | 12,142.77 miles (19,541.85 km) WSW | Chacalluta International Airport (ARI) | Arica, Chile | |
| 4 | 12,142.77 miles (19,541.85 km) WSW | Chacalluta International Airport (ACM) | Arica, Amazonas, Colombia | |
| 5 | 12,123.73 miles (19,511.21 km) SW | Rodríguez Ballón International Airport (AQP) | Arequipa, Peru | |
| 6 | 12,101.58 miles (19,475.56 km) SW | Carolina Airport (CLN) | Carolina, Maranhão, Brazil | |
| 7 | 12,086.91 miles (19,451.94 km) S | Maria Reiche Neuman Airport (NZC) | Nazca, Ica Region, Peru | |
| 8 | 12,077.97 miles (19,437.57 km) SW | Andrés Sabella Gálvez International Airport (former Cerro Moreno International Airport) (ANF) | Antofagasta, Chile | |
| 9 | 12,032.57 miles (19,364.49 km) WSW | El Loa Airport (CJC) | Calama, Antofagasta Region, Chile | |
| 10 | 12,016.39 miles (19,338.46 km) SW | Inca Manco Cápac International Airport (JUL) | Juliaca, Peru | |
| 11 | 12,002.14 miles (19,315.52 km) S | Andahuaylas Airport (ANS) | Andahuaylas, Peru | |
| 12 | 11,997.02 miles (19,307.29 km) SSE | Capitán FAP Renán Elías Olivera International Airport (PIO) | Pisco, Peru | |
| 13 | 11,970.12 miles (19,264.00 km) S | Coronel FAP Alfredo Mendívil Duarte Airport (AYP) | Ayacucho, Peru | |
| 14 | 11,970.12 miles (19,264.00 km) S | Coronel FAP Alfredo Mendívil Duarte Airport (AYC) | Ayacucho, Peru | |
| 15 | 11,964.81 miles (19,255.44 km) SSW | Alejandro Velasco Astete International Airport (CUZ) | Cusco, Cusco Region, Peru | |