Distance From Dongmun-ri Helipad to Chiang Mai International Airport

The distance from Dongmun-ri Helipad () to Chiang Mai International Airport (CNX) is 2136 miles or 3438 kilometers or 1855 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 Dongmun-ri ( South Korea ) to Chiang Mai ( Thailand )?

A one-way nonstop (direct) flight between Dongmun-ri and Chiang Mai takes around 4 hours 54 minutes.

Estimated flight time from Dongmun-ri Helipad, Dongmun-ri, South Korea to Chiang Mai International Airport, Chiang Mai, Thailand is 4 hours 54 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		3438 km
Statute Miles		2136 miles
Nautical Miles		1855 nm
Avg. Time of Flight		4 hours 54 minutes

Dongmun-ri Helipad to Chiang Mai International Airport Flight Route Map - to CNX Flight Path

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

Click to see flight route on Google Map between Dongmun-ri, South Korea and Chiang Mai, Thailand. .

Nonstop flight route between Dongmun-ri, South Korea and Chiang Mai, Thailand.

Time Difference Between the Airports • - CNX

Time difference between Dongmun-ri (South Korea) and Chiang Mai (Thailand) is 2 Hours.
Chiang Mai time is 2 Hours behind Dongmun-ri.

Location	Local Time
Dongmun-ri (South Korea)	2026-10-27, 21:08:03 KST
Chiang Mai (Thailand)	2026-10-27, 19:08:03 +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

Dongmun-ri Helipad ( / ) Dongmun-ri, South Korea

Destination

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