Nonstop flight route between Coatesville, Pennsylvania, United States and Diomede, Alaska, United States:

About this route:

A direct, nonstop flight between Chester County G. O. Carlson Airport (CTH), Coatesville, Pennsylvania, United States and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 3,823 miles (or 6,152 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 Chester County G. O. Carlson 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 Chester County G. O. Carlson 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 Chester County G. O. Carlson Airport (CTH):

• In addition to being known as "Chester County G. O. Carlson Airport", another name for CTH is "MQS".
• As part of the 12-year-plan for the airport, many projects are planned.
• Chester County G. O. Carlson Airport (CTH) currently has only 1 runway.
• The closest airport to Chester County G. O. Carlson Airport (CTH) is Brandywine Airport (OQN), which is located only 15 miles (24 kilometers) E of CTH.
• The furthest airport from Chester County G. O. Carlson Airport (CTH) is Margaret River Airport (MGV), which is located 11,702 miles (18,833 kilometers) away in Margaret River, Western Australia, Australia.
• The airport opened May 1, 1928 as Coatesville Airport and was owned and operated by the City of Coatesville.
• Because of Chester County G. O. Carlson Airport's relatively low elevation of 660 feet, planes can take off or land at Chester County G. O. Carlson 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 airport covers 250 acres.

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.
• Water for winter use is drawn from a mountain spring, then treated and stored in 434,000-U.S.-gallon storage tanks.
• The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
• Employment on the island is mostly limited to the city, post office and school.
• According to the United States Census Bureau, the village has a total area of 2.84 square miles, all of it land.
• 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 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 school year 1953–1954 in Little Diomede Island was adapted to better serve the local needs.