Nonstop flight route between Diomede, Alaska, United States and Portland, Maine, United States:
Departure Airport:
Arrival Airport:
Distance from DIO to PWM:
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- About this route
- DIO Airport Information
- PWM Airport Information
- Facts about DIO
- Facts about PWM
- Map of Nearest Airports to DIO
- List of Nearest Airports to DIO
- Map of Furthest Airports from DIO
- List of Furthest Airports from DIO
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
About this route:
A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Portland International Jetport (PWM), Portland, Maine, United States would travel a Great Circle distance of 3,746 miles (or 6,029 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 Portland International Jetport, 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 Portland International Jetport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | PWM / KPWM |
| Airport Name: | Portland International Jetport |
| Location: | Portland, Maine, United States |
| GPS Coordinates: | 43°38'45"N by 70°18'33"W |
| Area Served: | Portland, Maine |
| Airport Type: | Public |
| Elevation: | 76 feet (23 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from PWM |
| More Information: | PWM Maps & Info |
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.
- In the early 1940s, one of the Little Diomede villagers wrote "No airplane comes to Diomede except for some very special reason, during the winter.
- Water for winter use is drawn from a mountain spring, then treated and stored in 434,000-U.S.-gallon storage tanks.
- Despite being separated by the new border after the Alaska purchase in 1867, Big Diomede had been home to families now living on Little Diomede and the people living on the American side of the border were very close relatives to those living on the Russian side.
- 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 United States purchased Alaska from Russia in 1867 which included the Little Diomede.
- 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 closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
Facts about Portland International Jetport (PWM):
- 1986 also brought US Airways, who began flights to Philadelphia and Pittsburgh.
- The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
- Jet flights began in 1968, and for the first time Portland got a nonstop beyond Boston when Northeast DC-9s flew to La Guardia.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- In 2008 Delta Air Lines resumed mainline service to Portland, a daily flight to Atlanta on a McDonnell Douglas MD-88.
- In 1995 a terminal building improvement project was undertaken to add two-second-level boarding gates, as well as additional space for ticketing, operations, departure lounge, concessions, and an international customs facility.
- In 1972 Northeast Airlines was bought by Delta Air Lines which retained its routes to Bangor, Boston, and New York.
- Boston-Maine Airways had a monopoly on passenger air travel at Portland, which continued after the airline was renamed Northeast Airlines.
- Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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.
- Portland International Jetport (PWM) has 2 runways.
