Nonstop flight route between Diomede, Alaska, United States and Sanya, Hainan, China:
Departure Airport:

Arrival Airport:

Distance from DIO to SYX:
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- About this route
- DIO Airport Information
- SYX Airport Information
- Facts about DIO
- Facts about SYX
- 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 SYX
- List of Nearest Airports to SYX
- Map of Furthest Airports from SYX
- List of Furthest Airports from SYX
About this route:
A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Sanya Phoenix International Airport (SYX), Sanya, Hainan, China would travel a Great Circle distance of 4,832 miles (or 7,777 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 Sanya Phoenix International Airport, 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 Sanya Phoenix International Airport. 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: | SYX / ZJSY |
Airport Names: |
|
Location: | Sanya, Hainan, China |
GPS Coordinates: | 18°18'10"N by 109°24'44"E |
Area Served: | Sanya |
Operator/Owner: | Civil Aviation Administration of China |
Airport Type: | Public |
# of Runways: | 1 |
View all routes: | Routes from SYX |
More Information: | SYX Maps & Info |
Facts about Diomede Heliport (FAA: DM2) (DIO):
- The location of the city is believed to have been used for at least 3,000 years as a hunting campsite.
- The current location of the city, which is believed to be at least 3,000 years old by some archaeologists, was originally a spring hunting campsite and the early explorers from the west found the Iñupiat at Diomede had an advanced culture including their elaborate whale hunting ceremonies.
- 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.
- During the Nome gold rush at the turn of the 19th century, Diomede villagers traveled to Nome along with the gold seekers, even though Nome was not a native village.
- 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.
- Frozen ground and lack of soil on the rocky island also prevents digging graves, but rocks are piled on top of the burial sites instead.
- 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 closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
Facts about Sanya Phoenix International Airport (SYX):
- In addition to being known as "Sanya Phoenix International Airport", other names for SYX include "三亚凤凰国际机场" and "Sānyà Fènghuáng Guójì Jīcháng".
- Sanya Phoenix International Airport (SYX) currently has only 1 runway.
- With the construction of the rest of the Hainan Western Ring High-Speed Railway, from Sanya Phoenix Airport to Haikou, rail service from Sanya Station will become available to stations on the island's west coast as well.
- The furthest airport from Sanya Phoenix International Airport (SYX) is Chacalluta International Airport (ARI), which is nearly antipodal to Sanya Phoenix International Airport (meaning Sanya Phoenix International Airport is almost on the exact opposite side of the Earth from Chacalluta International Airport), and is located 12,420 miles (19,988 kilometers) away in Arica, Chile.
- Sanya Phoenix International Airport is an airport serving the city of Sanya in Hainan, the southernmost province of China.
- The closest airport to Sanya Phoenix International Airport (SYX) is Haikou Meilan International Airport (HAK), which is located 132 miles (212 kilometers) NNE of SYX.