Air Miles Calculator logo

How far is Chiang Mai from Siem Reap?

The distance between Siem Reap (Siem Reap–Angkor International Airport) and Chiang Mai (Chiang Mai International Airport) is 510 miles / 821 kilometers / 443 nautical miles.

The driving distance from Siem Reap (SAI) to Chiang Mai (CNX) is 664 miles / 1068 kilometers, and travel time by car is about 13 hours 28 minutes.

Siem Reap–Angkor International Airport – Chiang Mai International Airport

Distance arrow
510
Miles
Distance arrow
821
Kilometers
Distance arrow
443
Nautical miles

Search flights

Distance from Siem Reap to Chiang Mai

There are several ways to calculate the distance from Siem Reap to Chiang Mai. Here are two standard methods:

Vincenty's formula (applied above)
  • 509.855 miles
  • 820.531 kilometers
  • 443.051 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 510.833 miles
  • 822.107 kilometers
  • 443.902 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Siem Reap to Chiang Mai?

The estimated flight time from Siem Reap–Angkor International Airport to Chiang Mai International Airport is 1 hour and 27 minutes.

What is the time difference between Siem Reap and Chiang Mai?

There is no time difference between Siem Reap and Chiang Mai.

Flight carbon footprint between Siem Reap–Angkor International Airport (SAI) and Chiang Mai International Airport (CNX)

On average, flying from Siem Reap to Chiang Mai generates about 100 kg of CO2 per passenger, and 100 kilograms equals 221 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Siem Reap to Chiang Mai

See the map of the shortest flight path between Siem Reap–Angkor International Airport (SAI) and Chiang Mai International Airport (CNX).

Airport information

Origin Siem Reap–Angkor International Airport
City: Siem Reap
Country: Cambodia Flag of Cambodia
IATA Code: SAI
ICAO Code: VDSA
Coordinates: 13°22′9″N, 104°13′23″E
Destination Chiang Mai International Airport
City: Chiang Mai
Country: Thailand Flag of Thailand
IATA Code: CNX
ICAO Code: VTCC
Coordinates: 18°46′0″N, 98°57′45″E