How far is Siem Reap from Kathmandu?
The distance between Kathmandu (Tribhuvan International Airport) and Siem Reap (Siem Reap–Angkor International Airport) is 1566 miles / 2521 kilometers / 1361 nautical miles.
The driving distance from Kathmandu (KTM) to Siem Reap (SAI) is 2254 miles / 3628 kilometers, and travel time by car is about 43 hours 55 minutes.
Tribhuvan International Airport – Siem Reap–Angkor International Airport
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Distance from Kathmandu to Siem Reap
There are several ways to calculate the distance from Kathmandu to Siem Reap. Here are two standard methods:
Vincenty's formula (applied above)- 1566.246 miles
- 2520.629 kilometers
- 1361.031 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- 1567.485 miles
- 2522.623 kilometers
- 1362.108 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 Kathmandu to Siem Reap?
The estimated flight time from Tribhuvan International Airport to Siem Reap–Angkor International Airport is 3 hours and 27 minutes.
What is the time difference between Kathmandu and Siem Reap?
Flight carbon footprint between Tribhuvan International Airport (KTM) and Siem Reap–Angkor International Airport (SAI)
On average, flying from Kathmandu to Siem Reap generates about 184 kg of CO2 per passenger, and 184 kilograms equals 405 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Kathmandu to Siem Reap
See the map of the shortest flight path between Tribhuvan International Airport (KTM) and Siem Reap–Angkor International Airport (SAI).
Airport information
| Origin | Tribhuvan International Airport |
|---|---|
| City: | Kathmandu |
| Country: | Nepal  |
| IATA Code: | KTM |
| ICAO Code: | VNKT |
| Coordinates: | 27°41′47″N, 85°21′32″E |
| Destination | Siem Reap–Angkor International Airport |
|---|---|
| City: | Siem Reap |
| Country: | Cambodia  |
| IATA Code: | SAI |
| ICAO Code: | VDSA |
| Coordinates: | 13°22′9″N, 104°13′23″E |