Distance From Grindstone Lake Seaplane Base to Chiang Mai International Airport

The distance from Grindstone Lake Seaplane Base () to Chiang Mai International Airport (CNX) is 7891 miles or 12698 kilometers or 6852 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 Sandstone ( United States ) to Chiang Mai ( Thailand )?

A one-way nonstop (direct) flight between Sandstone and Chiang Mai takes around 18 hours 8 minutes.

Estimated flight time from Grindstone Lake Seaplane Base, Sandstone, United States to Chiang Mai International Airport, Chiang Mai, Thailand is 18 hours 8 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		12698 km
Statute Miles		7891 miles
Nautical Miles		6852 nm
Avg. Time of Flight		18 hours 8 minutes

Grindstone Lake Seaplane Base to Chiang Mai International Airport Flight Route Map - to CNX Flight Path

Location of Grindstone Lake Seaplane Base & Chiang Mai International Airport is given below.
Click the map to view Sandstone to Chiang Mai nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • - CNX

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

Location	Local Time
Sandstone (United States)	2026-08-08, 04:22:50 CDT
Chiang Mai (Thailand)	2026-08-08, 16:22:50 +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

Grindstone Lake Seaplane Base ( / 0MN2) Sandstone, United States

Destination

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