Distance From St Gallen Altenrhein Airport to Chiang Mai International Airport, ACH - CNX Distance

The distance from St Gallen Altenrhein Airport (ACH) to Chiang Mai International Airport (CNX) is 5244 miles or 8438 kilometers or 4554 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 Altenrhein ( Switzerland ) to Chiang Mai ( Thailand )?

A one-way nonstop (direct) flight between Altenrhein and Chiang Mai takes around 12 hours 3 minutes.

Estimated flight time from St Gallen Altenrhein Airport, Altenrhein, Switzerland to Chiang Mai International Airport, Chiang Mai, Thailand is 12 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 • ACH - CNX

Kilometers		8438 km
Statute Miles		5244 miles
Nautical Miles		4554 nm
Avg. Time of Flight		12 hours 3 minutes

St Gallen Altenrhein Airport to Chiang Mai International Airport Flight Route Map - ACH to CNX Flight Path

Location of St Gallen Altenrhein Airport & Chiang Mai International Airport is given below.
Click the map to view Altenrhein to Chiang Mai nonstop flight path and travel direction.

Click to see flight route on Google Map between Altenrhein, Switzerland and Chiang Mai, Thailand. .

Nonstop flight route between Altenrhein, Switzerland and Chiang Mai, Thailand.

Time Difference Between the Airports • ACH - CNX

Time difference between Altenrhein (Switzerland) and Chiang Mai (Thailand) is 5 Hours.
Chiang Mai time is 5 Hours ahead of Altenrhein.

Location	Local Time
Altenrhein (Switzerland)	2025-04-03, 19:38:17 CEST
Chiang Mai (Thailand)	2025-04-04, 00:38:17 +07

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 Gallen Altenrhein Airport (ACH / LSZR) Altenrhein, Switzerland

Destination

Chiang Mai International Airport (CNX / VTCC) Chiang Mai, Thailand