Distance From C 621 Heliport to Chiang Mai International Airport

The distance from C 621 Heliport () to Chiang Mai International Airport (CNX) is 2093 miles or 3368 kilometers or 1818 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 Myeongjae-ro ( South Korea ) to Chiang Mai ( Thailand )?

A one-way nonstop (direct) flight between Myeongjae-ro and Chiang Mai takes around 4 hours 48 minutes.

Estimated flight time from C 621 Heliport, Myeongjae-ro, South Korea to Chiang Mai International Airport, Chiang Mai, Thailand is 4 hours 48 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		3368 km
Statute Miles		2093 miles
Nautical Miles		1818 nm
Avg. Time of Flight		4 hours 48 minutes

C 621 Heliport to Chiang Mai International Airport Flight Route Map - to CNX Flight Path

Location of C 621 Heliport & Chiang Mai International Airport is given below.
Click the map to view Myeongjae-ro to Chiang Mai nonstop flight path and travel direction.

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

Nonstop flight route between Myeongjae-ro, South Korea and Chiang Mai, Thailand.

Time Difference Between the Airports • - CNX

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

Location	Local Time
Myeongjae-ro (South Korea)	2026-04-03, 07:57:28 KST
Chiang Mai (Thailand)	2026-04-03, 05:57:28 +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

C 621 Heliport ( / ) Myeongjae-ro, South Korea

Destination

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