Nonstop flight route between Haiphong, Vietnam and Willow Grove, Pennsylvania, United States:

About this route:

A direct, nonstop flight between Cat Bi International Airport (HPH), Haiphong, Vietnam and NAS JRB Willow Grove (NXX), Willow Grove, Pennsylvania, United States would travel a Great Circle distance of 8,219 miles (or 13,227 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 Cat Bi International Airport and NAS JRB Willow Grove, 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 Cat Bi International Airport and NAS JRB Willow Grove. 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 Cat Bi International Airport (HPH):

• 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.
• In addition to being known as "Cat Bi International Airport", another name for HPH is "Sân bay Quốc tế Cát Bi".
• 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.
• Cat Bi International Airport (HPH) currently has only 1 runway.
• 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.

Facts about NAS JRB Willow Grove (NXX):

• The closest airport to NAS JRB Willow Grove (NXX) is Wings Field (BBX), which is located only 8 miles (12 kilometers) SW of NXX.
• Flight activity began here in 1926 when Harold Frederick Pitcairn constructed a hangar and a grass airstrip in Horsham, Pennsylvania.
• The airfield shut down on March 31, 2011.
• NAS JRB Willow Grove (NXX) currently has only 1 runway.
• On September 30, 2007, pursuant to direction of BRAC 2005, the Air Force Reserve Command disestablished the 913th Airlift Wing at the collocated Willow Grove ARS, redistributing its C-130 Hercules aircraft to other active duty Air Force and Air Force Reserve units.
• Because of NAS JRB Willow Grove's relatively low elevation of 335 feet, planes can take off or land at NAS JRB Willow Grove 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 NAS JRB Willow Grove (NXX) is Margaret River Airport (MGV), which is located 11,726 miles (18,871 kilometers) away in Margaret River, Western Australia, Australia.