Distance From Saint-Léonard Airport to Chiang Mai International Airport, YSL - CNX Distance

The distance from Saint-Léonard Airport (YSL) to Chiang Mai International Airport (CNX) is 7809 miles or 12566 kilometers or 6781 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 Saint-Léonard ( Canada ) to Chiang Mai ( Thailand )?

A one-way nonstop (direct) flight between Saint-Léonard and Chiang Mai takes around 17 hours 57 minutes.

Estimated flight time from Saint-Léonard Airport, Saint-Léonard, Canada to Chiang Mai International Airport, Chiang Mai, Thailand is 17 hours 57 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 • YSL - CNX

Kilometers		12566 km
Statute Miles		7809 miles
Nautical Miles		6781 nm
Avg. Time of Flight		17 hours 57 minutes

Saint-Léonard Airport to Chiang Mai International Airport Flight Route Map - YSL to CNX Flight Path

Location of Saint-Léonard Airport & Chiang Mai International Airport is given below.
Click the map to view Saint-Léonard to Chiang Mai nonstop flight path and travel direction.

Click to see flight route on Google Map between Saint-Léonard, Canada and Chiang Mai, Thailand. .

Nonstop flight route between Saint-Léonard, Canada and Chiang Mai, Thailand.

Time Difference Between the Airports • YSL - CNX

Time difference between Saint-Léonard (Canada) and Chiang Mai (Thailand) is 10 Hours.
Chiang Mai time is 10 Hours ahead of Saint-Léonard.

Location	Local Time
Saint-Léonard (Canada)	2026-05-01, 03:12:41 ADT
Chiang Mai (Thailand)	2026-05-01, 13:12:41 +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

Saint-Léonard Airport (YSL / CYSL) Saint-Léonard, Canada

Destination

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