Nonstop flight route between Haiphong, Vietnam and Casper, Wyoming, United States:

About this route:

A direct, nonstop flight between Cat Bi International Airport (HPH), Haiphong, Vietnam and Casper–Natrona County International AirportCasper Army Airfield (CPR), Casper, Wyoming, United States would travel a Great Circle distance of 7,554 miles (or 12,157 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 Casper–Natrona County International AirportCasper Army Airfield, 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 Casper–Natrona County International AirportCasper Army Airfield. 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 closest airport to Cat Bi International Airport (HPH) is Nội Bài International Airport (HAN), which is located 65 miles (105 kilometers) WNW of HPH.
• 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 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.
• Cat Bi International Airport (HPH) currently has only 1 runway.

Facts about Casper–Natrona County International AirportCasper Army Airfield (CPR):

• The 331st was converted to a Very Heavy group in July 1944 and began training for deployment to Twentieth Air Force in the Pacific.
• In July 2004 the airport was renovated.TSA baggage screening was moved from in front of the ticket counters to the area behind them.
• The furthest airport from Casper–Natrona County International AirportCasper Army Airfield (CPR) is Sir Gaëtan Duval Airport (RRG), which is located 10,731 miles (17,270 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Casper–Natrona County International AirportCasper Army Airfield (CPR) is Converse County Airport (DGW), which is located 55 miles (89 kilometers) E of CPR.
• Casper–Natrona County International AirportCasper Army Airfield (CPR) has 2 runways.
• Because of Casper–Natrona County International AirportCasper Army Airfield's high elevation of 5,350 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CPR. Combined with a high temperature, this could make CPR a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.