Distance From St Louis Regional Airport to Kualanamu International Airport, ALN - KNO Distance

The distance from St Louis Regional Airport (ALN) to Kualanamu International Airport (KNO) is 9444 miles or 15198 kilometers or 8201 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 Medan ( Indonesia )?

A one-way nonstop (direct) flight between Alton/St Louis and Medan takes around 21 hours 42 minutes.

Estimated flight time from St Louis Regional Airport, Alton/St Louis, United States to Kualanamu International Airport, Medan, Indonesia is 21 hours 42 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 - KNO

Kilometers		15198 km
Statute Miles		9444 miles
Nautical Miles		8201 nm
Avg. Time of Flight		21 hours 42 minutes

St Louis Regional Airport to Kualanamu International Airport Flight Route Map - ALN to KNO Flight Path

Location of St Louis Regional Airport & Kualanamu International Airport is given below.
Click the map to view Alton/St Louis to Medan nonstop flight path and travel direction.

Click to see flight route on Google Map between Alton/St Louis, United States and Medan, Indonesia. .

Nonstop flight route between Alton/St Louis, United States and Medan, Indonesia.

Time Difference Between the Airports • ALN - KNO

Time difference between Alton/St Louis (United States) and Medan (Indonesia) is 12 Hours.
Medan time is 12 Hours ahead of Alton/St Louis.

Location	Local Time
Alton/St Louis (United States)	2025-12-13, 08:52:29 EST
Medan (Indonesia)	2025-12-13, 20:52:29 WIB

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

Kualanamu International Airport (KNO / WIMM) Medan, Indonesia