Distance From Phnom Penh International Airport to St Louis Lambert International Airport, PNH - STL Distance

The distance from Phnom Penh International Airport (PNH) to St Louis Lambert International Airport (STL) is 8826 miles or 14204 kilometers or 7664 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 Phnom Penh (Pou Senchey) ( Cambodia ) to St Louis ( United States )?

A one-way nonstop (direct) flight between Phnom Penh (Pou Senchey) and St Louis takes around 20 hours 17 minutes.

Estimated flight time from Phnom Penh International Airport, Phnom Penh (Pou Senchey), Cambodia to St Louis Lambert International Airport, St Louis, United States is 20 hours 17 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 • PNH - STL

Kilometers		14204 km
Statute Miles		8826 miles
Nautical Miles		7664 nm
Avg. Time of Flight		20 hours 17 minutes

Phnom Penh International Airport to St Louis Lambert International Airport Flight Route Map - PNH to STL Flight Path

Location of Phnom Penh International Airport & St Louis Lambert International Airport is given below.
Click the map to view Phnom Penh (Pou Senchey) to St Louis nonstop flight path and travel direction.

Click to see flight route on Google Map between Phnom Penh (Pou Senchey), Cambodia and St Louis, United States. .

Nonstop flight route between Phnom Penh (Pou Senchey), Cambodia and St Louis, United States.

Time Difference Between the Airports • PNH - STL

Time difference between Phnom Penh (Pou Senchey) (Cambodia) and St Louis (United States) is 12 Hours.
St Louis time is 12 Hours behind Phnom Penh (Pou Senchey).

Location	Local Time
Phnom Penh (Pou Senchey) (Cambodia)	2025-12-16, 06:44:37 +07
St Louis (United States)	2025-12-15, 18:44:37 EST

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

Phnom Penh International Airport (PNH / VDPP) Phnom Penh (Pou Senchey), Cambodia

Destination

St Louis Lambert International Airport (STL / KSTL) St Louis, United States