How far is Udon Thani from Colombo?
The distance between Colombo (Ratmalana Airport) and Udon Thani (Udon Thani International Airport) is 1708 miles / 2749 kilometers / 1484 nautical miles.
The driving distance from Colombo (RML) to Udon Thani (UTH) is 3365 miles / 5416 kilometers, and travel time by car is about 71 hours 55 minutes.
Ratmalana Airport – Udon Thani International Airport
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Distance from Colombo to Udon Thani
There are several ways to calculate the distance from Colombo to Udon Thani. Here are two standard methods:
Vincenty's formula (applied above)- 1708.229 miles
- 2749.129 kilometers
- 1484.411 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- 1708.042 miles
- 2748.827 kilometers
- 1484.248 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 Colombo to Udon Thani?
The estimated flight time from Ratmalana Airport to Udon Thani International Airport is 3 hours and 44 minutes.
What is the time difference between Colombo and Udon Thani?
Flight carbon footprint between Ratmalana Airport (RML) and Udon Thani International Airport (UTH)
On average, flying from Colombo to Udon Thani generates about 193 kg of CO2 per passenger, and 193 kilograms equals 426 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Colombo to Udon Thani
See the map of the shortest flight path between Ratmalana Airport (RML) and Udon Thani International Airport (UTH).
Airport information
| Origin | Ratmalana Airport |
|---|---|
| City: | Colombo |
| Country: | Sri Lanka  |
| IATA Code: | RML |
| ICAO Code: | VCCC |
| Coordinates: | 6°49′19″N, 79°53′10″E |
| Destination | Udon Thani International Airport |
|---|---|
| City: | Udon Thani |
| Country: | Thailand  |
| IATA Code: | UTH |
| ICAO Code: | VTUD |
| Coordinates: | 17°23′11″N, 102°47′16″E |