Nonstop flight route between Chicago, Illinois, United States and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from ORD to DIO:
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- About this route
- ORD Airport Information
- DIO Airport Information
- Facts about ORD
- Facts about DIO
- Map of Nearest Airports to ORD
- List of Nearest Airports to ORD
- Map of Furthest Airports from ORD
- List of Furthest Airports from ORD
- 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 Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 3,379 miles (or 5,437 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 Chicago O'Hare 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 Chicago O'Hare 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:
IATA / ICAO Codes: | ORD / KORD |
Airport Name: | Chicago O'Hare International Airport |
Location: | Chicago, Illinois, United States |
GPS Coordinates: | 41°58'42"N by 87°54'16"W |
Area Served: | Chicago, Illinois, United States |
Operator/Owner: | City of Chicago |
Airport Type: | Public |
Elevation: | 668 feet (204 meters) |
# of Runways: | 8 |
View all routes: | Routes from ORD |
More Information: | ORD 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 Chicago O'Hare International Airport (ORD):
- Until 2005, O'Hare was the world's busiest airport in number of takeoffs and landings.
- Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare 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 Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
- Commercial passenger flights started in 1955 and by the following year O'Hare was served by American, BOAC, Braniff, Capital, Delta, Eastern, North Central, Pan Am, TWA and United, along with freight airlines Riddle and Slick.
- All international arrivals at O'Hare arrive at Terminal 5, as the other terminals do not have Customs facilities.
- The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
- Total annual passenger volume at O'Hare reached 30 million in 1968, 40 million in 1976, 60 million in 1990 and 70 million in 1997.
- Chicago O'Hare International Airport (ORD) has 8 runways.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- 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 United States purchased Alaska from Russia in 1867 which included the Little Diomede.
- The median income for a household in the city was $23,750, and the median income for a family was $24,583.
- Funds for improving the water system have been requested both by the city and the school.
- According to the United States Census Bureau, the village has a total area of 2.84 square miles, all of it land.
- 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.
- 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.