Nonstop flight route between Port Alsworth, Alaska, United States and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from PTA to DIO:
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- About this route
- PTA Airport Information
- DIO Airport Information
- Facts about PTA
- Facts about DIO
- Map of Nearest Airports to PTA
- List of Nearest Airports to PTA
- Map of Furthest Airports from PTA
- List of Furthest Airports from PTA
- 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 Port Alsworth Airport (PTA), Port Alsworth, Alaska, United States and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 596 miles (or 959 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 relatively short distance between Port Alsworth Airport and Diomede Heliport (FAA: DM2), the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | PTA / PALJ |
Airport Names: |
|
Location: | Port Alsworth, Alaska, United States |
GPS Coordinates: | 60°12'15"N by 154°19'8"W |
Area Served: | Port Alsworth, Alaska |
Operator/Owner: | Glen Alsworth, Sr. |
Airport Type: | Private |
Elevation: | 280 feet (85 meters) |
# of Runways: | 1 |
View all routes: | Routes from PTA |
More Information: | PTA 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 Port Alsworth Airport (PTA):
- Because of Port Alsworth Airport's relatively low elevation of 280 feet, planes can take off or land at Port Alsworth 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 Port Alsworth Airport (PTA) is Nondalton Airport (NNL), which is located 24 miles (38 kilometers) SW of PTA.
- The furthest airport from Port Alsworth Airport (PTA) is Port Elizabeth International Airport (PLZ), which is located 10,625 miles (17,100 kilometers) away in Port Elizabeth, South Africa.
- Port Alsworth Airport (PTA) currently has only 1 runway.
- In addition to being known as "Port Alsworth Airport", other names for PTA include "TPO" and "Port Alsworth".
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.
- 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.
- An electric system was built on the island in the 1970s and electricity is provided by city-operated Diomede Joint Utilities.
- After the Cold War ended in the early 1990s, an interest of reuniting with families across the Bering Strait revived.
- 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 location of the city is believed to have been used for at least 3,000 years as a hunting campsite.
- According to traveler John Muir, on his visit to Diomede Islands in 1880s they found the natives eager to trade away everything they had.
- 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.
- 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.