Distance From Dewitt Field - Old Town Municipal Airport to Chiang Mai International Airport, OLD - CNX Distance

The distance from Dewitt Field - Old Town Municipal Airport (OLD) to Chiang Mai International Airport (CNX) is 7966 miles or 12820 kilometers or 6918 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 Old Town ( United States ) to Chiang Mai ( Thailand )?

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

Estimated flight time from Dewitt Field - Old Town Municipal Airport, Old Town, United States to Chiang Mai International Airport, Chiang Mai, Thailand is 18 hours 18 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 • OLD - CNX

Kilometers		12820 km
Statute Miles		7966 miles
Nautical Miles		6918 nm
Avg. Time of Flight		18 hours 18 minutes

Dewitt Field - Old Town Municipal Airport to Chiang Mai International Airport Flight Route Map - OLD to CNX Flight Path

Location of Dewitt Field - Old Town Municipal Airport & Chiang Mai International Airport is given below.
Click the map to view Old Town to Chiang Mai nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • OLD - CNX

Time difference between Old Town (United States) and Chiang Mai (Thailand) is 12 Hours.
Chiang Mai time is 12 Hours ahead of Old Town.

Location	Local Time
Old Town (United States)	2025-12-05, 02:36:22 EST
Chiang Mai (Thailand)	2025-12-05, 14:36:22 +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

Dewitt Field - Old Town Municipal Airport (OLD / KOLD) Old Town, United States

Destination

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