Nonstop flight route between Lansdowne House, Ontario, Canada and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from YLH to DIO:
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- About this route
- YLH Airport Information
- DIO Airport Information
- Facts about YLH
- Facts about DIO
- Map of Nearest Airports to YLH
- List of Nearest Airports to YLH
- Map of Furthest Airports from YLH
- List of Furthest Airports from YLH
- 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 Lansdowne House Airport (YLH), Lansdowne House, Ontario, Canada and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 2,802 miles (or 4,510 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 Lansdowne House 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 Lansdowne House 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: | YLH / CYLH |
Airport Name: | Lansdowne House Airport |
Location: | Lansdowne House, Ontario, Canada |
GPS Coordinates: | 52°11'44"N by 87°56'3"W |
Operator/Owner: | Government of Ontario |
Airport Type: | Public |
Elevation: | 834 feet (254 meters) |
# of Runways: | 1 |
View all routes: | Routes from YLH |
More Information: | YLH 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 Lansdowne House Airport (YLH):
- Lansdowne House Airport (YLH) currently has only 1 runway.
- The closest airport to Lansdowne House Airport (YLH) is Fort Hope Airport (YFH), which is located 44 miles (70 kilometers) S of YLH.
- The furthest airport from Lansdowne House Airport (YLH) is Margaret River Airport (MGV), which is located 10,735 miles (17,277 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Lansdowne House Airport's relatively low elevation of 834 feet, planes can take off or land at Lansdowne House 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.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- During the centuries, the village on Little Diomede was gradually inhabited as a permanent settlement and the entire island was incorporated into the city of Diomede in 1970.
- 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 location of the city is believed to have been used for at least 3,000 years as a hunting campsite.
- 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.
- According to traveler John Muir, on his visit to Diomede Islands in 1880s they found the natives eager to trade away everything they had.
- The city levies a 3% sales tax, but there are no property taxes on the island.
- Water for winter use is drawn from a mountain spring, then treated and stored in 434,000-U.S.-gallon storage tanks.