Nonstop flight route between Haiphong, Vietnam and Diomede, Alaska, United States:

About this route:

A direct, nonstop flight between Cat Bi International Airport (HPH), Haiphong, Vietnam and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 4,752 miles (or 7,647 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 Diomede Heliport (FAA: DM2), 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 Diomede Heliport (FAA: DM2). 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):

• In addition to being known as "Cat Bi International Airport", another name for HPH is "Sân bay Quốc tế Cát Bi".
• 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.
• 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 Diomede Heliport (FAA: DM2) (DIO):

• The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
• The island's only school, and likely the most isolated school in the United States, the Diomede School has grades from Pre-K through 12 and approximately 40 students and 5 teachers.
• The furthest airport from Diomede Heliport (FAA: DM2) (DIO) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,411 miles (16,755 kilometers) away in Villa Las Estrellas, Antarctica.
• According to Arthur Ahkinga, who lived on Little Diomede island at the turn of the 1940s, the Iñupiat on the island made their living by hunting and carving ivory which they traded or sold.
• There were 43 households out of which 37.2% had children under the age of 18 living with them, 20.9% were married couples living together, 32.6% had a female householder with no husband present, and 27.9% were non-families.
• The first square building in the island was a small Catholic church, which was planned by Father Bellarmine Lafortune in 1935 and built by Father Thomas Cunningham during his residency in the island between 1936 and 1947.
• Because of Diomede Heliport (FAA: DM2)'s relatively low elevation of 0 feet, planes can take off or land at Diomede Heliport (FAA: DM2) 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.