Nonstop flight route between Portsmouth, New Hampshire, United States and Da Nang, Vietnam:

About this route:

A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Đà Nẵng International Airport (DAD), Da Nang, Vietnam would travel a Great Circle distance of 8,351 miles (or 13,440 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 Đà Nẵng 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 Portsmouth International Airport at Pease and Đà Nẵng International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Portsmouth International Airport at Pease (PSM):

• It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
• Portsmouth International Airport at Pease, formerly known as Pease International Airport, is a joint civil and military use airport located one nautical mile west of the central business district of Portsmouth, a city in Rockingham County, New Hampshire, United States.
• 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.
• Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
• 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.

Facts about Đà Nẵng International Airport (DAD):

• Because of Đà Nẵng International Airport's relatively low elevation of 33 feet, planes can take off or land at Đà Nẵng 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 "Đà Nẵng International Airport", another name for DAD is "Sân bay Quốc tế Đà Nẵng".
• Air Vietnam also used the facility from 1951 to 1975 for civilian domestic and international flights within Southeast Asia.
• The furthest airport from Đà Nẵng International Airport (DAD) is Rodríguez Ballón International Airport (AQP), which is nearly antipodal to Đà Nẵng International Airport (meaning Đà Nẵng International Airport is almost on the exact opposite side of the Earth from Rodríguez Ballón International Airport), and is located 12,412 miles (19,975 kilometers) away in Arequipa, Peru.
• In addition to its civil aviation, the runway is shared with the Vietnamese People's Air Force, although military activities are now extremely limited.
• Đà Nẵng International Airport (DAD) has 2 runways.
• Đà Nẵng International Airport is located in Đà Nẵng, the largest city in central Vietnam.
• The closest airport to Đà Nẵng International Airport (DAD) is Phu Bai International Airport (HUI), which is located 41 miles (66 kilometers) NW of DAD.
• Da Nang International Airport has two 10,000-foot paved, parallel runways capable of handling large, modern aircraft such as Boeing 747s, 767s and Airbus 320s.