Nonstop flight route between Diomede, Alaska, United States and Sioux City, Iowa, United States:

About this route:

A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Sioux Gateway Airport (SUX), Sioux City, Iowa, United States would travel a Great Circle distance of 3,117 miles (or 5,016 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 Sioux Gateway 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 Diomede Heliport (FAA: DM2) and Sioux Gateway 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 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.
• The United States purchased Alaska from Russia in 1867 which included the Little Diomede.
• After the Cold War ended in the early 1990s, an interest of reuniting with families across the Bering Strait revived.
• 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.
• 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.
• 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.
• There are no roads, highways, railroads, or internal waterways on the island.

Facts about Sioux Gateway Airport (SUX):

• In addition to being known as "Sioux Gateway Airport", another name for SUX is "Colonel Bud Day Field".
• The furthest airport from Sioux Gateway Airport (SUX) is Margaret River Airport (MGV), which is located 10,641 miles (17,125 kilometers) away in Margaret River, Western Australia, Australia.
• Sioux Gateway Airport (SUX) has 2 runways.
• The closest airport to Sioux Gateway Airport (SUX) is Le Mars Municipal Airport (LRJ), which is located 28 miles (45 kilometers) NNE of SUX.
• The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport since it has over 10,000 passenger boardings per year.
• Sioux Gateway Airport covers 2,460 acres at an elevation of 1,098 feet above mean sea level.
• The airport designator "SUX" has been contentious.
• In June 2011 work was completed on a $6.2 million remodeling of the 58-year-old terminal building.