Nonstop flight route between Houston, Texas, United States and Haiphong, Vietnam:

About this route:

A direct, nonstop flight between William P. Hobby Airport (HOU), Houston, Texas, United States and Cat Bi International Airport (HPH), Haiphong, Vietnam would travel a Great Circle distance of 8,655 miles (or 13,929 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 William P. Hobby 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 William P. Hobby 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:

Arrival Airport Information:

Facts about William P. Hobby Airport (HOU):

• In 1950 Pan Am started a DC-4 nonstop to Mexico City.
• Because of William P. Hobby Airport's relatively low elevation of 46 feet, planes can take off or land at William P. Hobby 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 "William P. Hobby Airport", another name for HOU is "Houston Hobby".
• Developments at Hobby in the 2000s include a new concourse to serve Southwest Airlines, designed by Leo A Daly and the upgrade of Runway 4/22.
• The closest airport to William P. Hobby Airport (HOU) is Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), which is located only 8 miles (12 kilometers) ESE of HOU.
• William P. Hobby Airport handled 9,054,001 passengers last year.
• The furthest airport from William P. Hobby Airport (HOU) is Cocos (Keeling) Island Airport (CCK), which is located 11,002 miles (17,706 kilometers) away in Cocos Islands, Australia.
• Taxis are available at Curb Zone 3.
• United Airlines, Houston's other major carrier, which would subsequently be forced to compete with Southwest on proposed international routes, has objected to the expansion plans, citing a study which concludes that the change would cost the Houston area jobs and result in a net reduction in GRP.
• William P. Hobby Airport (HOU) has 4 runways.

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.