How far is Kathmandu from Chiang Rai?
The distance between Chiang Rai (Chiang Rai International Airport) and Kathmandu (Tribhuvan International Airport) is 1062 miles / 1708 kilometers / 922 nautical miles.
The driving distance from Chiang Rai (CEI) to Kathmandu (KTM) is 1808 miles / 2909 kilometers, and travel time by car is about 35 hours 48 minutes.
Chiang Rai International Airport – Tribhuvan International Airport
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Distance from Chiang Rai to Kathmandu
There are several ways to calculate the distance from Chiang Rai to Kathmandu. Here are two standard methods:
Vincenty's formula (applied above)- 1061.502 miles
- 1708.322 kilometers
- 922.420 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- 1061.242 miles
- 1707.904 kilometers
- 922.194 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 Rai to Kathmandu?
The estimated flight time from Chiang Rai International Airport to Tribhuvan International Airport is 2 hours and 30 minutes.
What is the time difference between Chiang Rai and Kathmandu?
Flight carbon footprint between Chiang Rai International Airport (CEI) and Tribhuvan International Airport (KTM)
On average, flying from Chiang Rai to Kathmandu generates about 155 kg of CO2 per passenger, and 155 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 Rai to Kathmandu
See the map of the shortest flight path between Chiang Rai International Airport (CEI) and Tribhuvan International Airport (KTM).
Airport information
| Origin | Chiang Rai International Airport |
|---|---|
| City: | Chiang Rai |
| Country: | Thailand  |
| IATA Code: | CEI |
| ICAO Code: | VTCT |
| Coordinates: | 19°57′8″N, 99°52′58″E |
| Destination | Tribhuvan International Airport |
|---|---|
| City: | Kathmandu |
| Country: | Nepal  |
| IATA Code: | KTM |
| ICAO Code: | VNKT |
| Coordinates: | 27°41′47″N, 85°21′32″E |