Distance From St Louis Regional Airport to Sanya Phoenix International Airport, ALN - SYX Distance

The distance from St Louis Regional Airport (ALN) to Sanya Phoenix International Airport (SYX) is 8289 miles or 13340 kilometers or 7199 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Alton/St Louis ( United States ) to Sanya (Tianya) ( China )?

A one-way nonstop (direct) flight between Alton/St Louis and Sanya (Tianya) takes around 19 hours 3 minutes.

Estimated flight time from St Louis Regional Airport, Alton/St Louis, United States to Sanya Phoenix International Airport, Sanya (Tianya), China is 19 hours 3 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • ALN - SYX

Kilometers		13340 km
Statute Miles		8289 miles
Nautical Miles		7199 nm
Avg. Time of Flight		19 hours 3 minutes

St Louis Regional Airport to Sanya Phoenix International Airport Flight Route Map - ALN to SYX Flight Path

Location of St Louis Regional Airport & Sanya Phoenix International Airport is given below.
Click the map to view Alton/St Louis to Sanya (Tianya) nonstop flight path and travel direction.

Click to see flight route on Google Map between Alton/St Louis, United States and Sanya (Tianya), China. .

Nonstop flight route between Alton/St Louis, United States and Sanya (Tianya), China.

Time Difference Between the Airports • ALN - SYX

Time difference between Alton/St Louis (United States) and Sanya (Tianya) (China) is 13 Hours.
Sanya (Tianya) time is 13 Hours ahead of Alton/St Louis.

Location	Local Time
Alton/St Louis (United States)	2025-12-14, 01:49:23 EST
Sanya (Tianya) (China)	2025-12-14, 14:49:23 CST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

St Louis Regional Airport (ALN / KALN) Alton/St Louis, United States

Destination

Sanya Phoenix International Airport (SYX / ZJSY) Sanya (Tianya), China