# How far is Surin from Chiang Mai?

The distance between Chiang Mai (Chiang Mai International Airport) and Surin (Surin Airport) is 403 miles / 648 kilometers / 350 nautical miles.

The driving distance from Chiang Mai (CNX) to Surin (PXR) is 594 miles / 956 kilometers, and travel time by car is about 12 hours 2 minutes.

403
Miles
648
Kilometers
350
Nautical miles
1 h 15 min

## Distance from Chiang Mai to Surin

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

Vincenty's formula (applied above)
• 402.555 miles
• 647.850 kilometers
• 349.811 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
• 403.095 miles
• 648.718 kilometers
• 350.280 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 Chiang Mai to Surin?

The estimated flight time from Chiang Mai International Airport to Surin Airport is 1 hour and 15 minutes.

## What is the time difference between Chiang Mai and Surin?

There is no time difference between Chiang Mai and Surin.

## Flight carbon footprint between Chiang Mai International Airport (CNX) and Surin Airport (PXR)

On average, flying from Chiang Mai to Surin generates about 84 kg of CO2 per passenger, and 84 kilograms equals 186 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

## Map of flight path and driving directions from Chiang Mai to Surin

See the map of the shortest flight path between Chiang Mai International Airport (CNX) and Surin Airport (PXR).

## Airport information

Origin Chiang Mai International Airport
City: Chiang Mai
Country: Thailand
IATA Code: CNX
ICAO Code: VTCC
Coordinates: 18°46′0″N, 98°57′45″E
Destination Surin Airport
City: Surin
Country: Thailand
IATA Code: PXR
ICAO Code: VTUJ
Coordinates: 14°52′5″N, 103°29′52″E