Distance From On the Rocks Airport to Chiang Mai International Airport

The distance from On the Rocks Airport () to Chiang Mai International Airport (CNX) is 8167 miles or 13143 kilometers or 7092 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 Alpine ( United States ) to Chiang Mai ( Thailand )?

A one-way nonstop (direct) flight between Alpine and Chiang Mai takes around 18 hours 46 minutes.

Estimated flight time from On the Rocks Airport, Alpine, United States to Chiang Mai International Airport, Chiang Mai, Thailand is 18 hours 46 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 • - CNX

Kilometers		13143 km
Statute Miles		8167 miles
Nautical Miles		7092 nm
Avg. Time of Flight		18 hours 46 minutes

On the Rocks Airport to Chiang Mai International Airport Flight Route Map - to CNX Flight Path

Location of On the Rocks Airport & Chiang Mai International Airport is given below.
Click the map to view Alpine to Chiang Mai nonstop flight path and travel direction.

Click to see flight route on Google Map between Alpine, United States and Chiang Mai, Thailand. .

Nonstop flight route between Alpine, United States and Chiang Mai, Thailand.

Time Difference Between the Airports • - CNX

Time difference between Alpine (United States) and Chiang Mai (Thailand) is 15 Hours.
Chiang Mai time is 15 Hours ahead of Alpine.

Location	Local Time
Alpine (United States)	2025-12-16, 03:44:45 PST
Chiang Mai (Thailand)	2025-12-16, 18:44:45 +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

On the Rocks Airport ( / 1CA6) Alpine, United States

Destination

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