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How far is Kathmandu from Chiang Mai?

The distance between Chiang Mai (Chiang Mai International Airport) and Kathmandu (Tribhuvan International Airport) is 1060 miles / 1706 kilometers / 921 nautical miles.

The driving distance from Chiang Mai (CNX) to Kathmandu (KTM) is 1959 miles / 3152 kilometers, and travel time by car is about 38 hours 30 minutes.

Chiang Mai International Airport – Tribhuvan International Airport

Distance arrow
1060
Miles
Distance arrow
1706
Kilometers
Distance arrow
921
Nautical miles
Flight time duration
2 h 30 min
Time Difference
1 h 15 min
CO2 emission
154 kg

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Distance from Chiang Mai to Kathmandu

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

Vincenty's formula (applied above)
  • 1059.790 miles
  • 1705.567 kilometers
  • 920.932 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
  • 1060.076 miles
  • 1706.026 kilometers
  • 921.180 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 Kathmandu?

The estimated flight time from Chiang Mai International Airport to Tribhuvan International Airport is 2 hours and 30 minutes.

Flight carbon footprint between Chiang Mai International Airport (CNX) and Tribhuvan International Airport (KTM)

On average, flying from Chiang Mai to Kathmandu generates about 154 kg of CO2 per passenger, and 154 kilograms equals 341 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 Kathmandu

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

Airport information

Origin 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
Destination Tribhuvan International Airport
City: Kathmandu
Country: Nepal Flag of Nepal
IATA Code: KTM
ICAO Code: VNKT
Coordinates: 27°41′47″N, 85°21′32″E