Distance From Willis Airport to Chiang Mai International Airport

The distance from Willis Airport () to Chiang Mai International Airport (CNX) is 8384 miles or 13493 kilometers or 7281 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 Greenfield ( United States ) to Chiang Mai ( Thailand )?

A one-way nonstop (direct) flight between Greenfield and Chiang Mai takes around 19 hours 16 minutes.

Estimated flight time from Willis Airport, Greenfield, United States to Chiang Mai International Airport, Chiang Mai, Thailand is 19 hours 16 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		13493 km
Statute Miles		8384 miles
Nautical Miles		7281 nm
Avg. Time of Flight		19 hours 16 minutes

Willis Airport to Chiang Mai International Airport Flight Route Map - to CNX Flight Path

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

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

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

Time Difference Between the Airports • - CNX

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

Location	Local Time
Greenfield (United States)	2025-12-14, 03:12:50 EST
Chiang Mai (Thailand)	2025-12-14, 15:12:50 +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

Willis Airport ( / 4II8) Greenfield, United States

Destination

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