Nonstop flight route between Chesterfield, Missouri, United States and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from SUS to DIO:
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- About this route
- SUS Airport Information
- DIO Airport Information
- Facts about SUS
- Facts about DIO
- Map of Nearest Airports to SUS
- List of Nearest Airports to SUS
- Map of Furthest Airports from SUS
- List of Furthest Airports from SUS
- Map of Nearest Airports to DIO
- List of Nearest Airports to DIO
- Map of Furthest Airports from DIO
- List of Furthest Airports from DIO
About this route:
A direct, nonstop flight between Spirit of St. Louis Airport (SUS), Chesterfield, Missouri, United States and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 3,497 miles (or 5,627 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 Spirit of St. Louis 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 Spirit of St. Louis 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:
IATA / ICAO Codes: | SUS / KSUS |
Airport Name: | Spirit of St. Louis Airport |
Location: | Chesterfield, Missouri, United States |
GPS Coordinates: | 38°39'43"N by 90°39'6"W |
Operator/Owner: | St. Louis County |
Airport Type: | Public |
Elevation: | 463 feet (141 meters) |
# of Runways: | 2 |
View all routes: | Routes from SUS |
More Information: | SUS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | DIO / |
Airport Name: | Diomede Heliport (FAA: DM2) |
Location: | Diomede, Alaska, United States |
GPS Coordinates: | 65°45'29"N by 168°57'6"W |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from DIO |
More Information: | DIO Maps & Info |
Facts about Spirit of St. Louis Airport (SUS):
- In 2007, the airport finished a multi-million dollar expansion project to add a parallel taxiway to the north of 26R/8L.
- Because of Spirit of St. Louis Airport's relatively low elevation of 463 feet, planes can take off or land at Spirit of St. Louis 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 closest airport to Spirit of St. Louis Airport (SUS) is Lambert–St. Louis International Airport (STL), which is located only 17 miles (27 kilometers) ENE of SUS.
- Spirit of St. Louis Airport (SUS) has 2 runways.
- The furthest airport from Spirit of St. Louis Airport (SUS) is Margaret River Airport (MGV), which is located 10,971 miles (17,656 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- While other emergency services are provided by volunteers and a health aide, the fire and rescue service is provided by Diomede Volunteer Fire Department and First Responders.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- The school year 1953–1954 in Little Diomede Island was adapted to better serve the local needs.
- In the city the population was spread out with 43.8% under the age of 18, 7.5% from 18 to 24, 25.3% from 25 to 44, 17.1% from 45 to 64, and 6.2% who were 65 years of age or older.
- Diomede is a city in the Nome Census Area of the Unorganized Borough of the U.S.
- 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.
- 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.
- At the beginning of the Cold War in the late 1940s Big Diomede became a Russian military base and all its native residents were removed to mainland Russia.
- 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.