Nonstop flight route between Diomede, Alaska, United States and Portsmouth, New Hampshire, United States:

About this route:

A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 3,767 miles (or 6,063 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 Diomede Heliport (FAA: DM2) and Portsmouth International Airport at Pease, 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 Diomede Heliport (FAA: DM2) and Portsmouth International Airport at Pease. 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 Diomede Heliport (FAA: DM2) (DIO):

• 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.
• 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.
• 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.
• The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
• Despite being separated by the new border after the Alaska purchase in 1867, Big Diomede had been home to families now living on Little Diomede and the people living on the American side of the border were very close relatives to those living on the Russian side.
• 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.
• 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.

Facts about Portsmouth International Airport at Pease (PSM):

• The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
• 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.
• 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.
• 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.
• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.