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How far is Udon Thani from Siem Reap?

The distance between Siem Reap (Siem Reap–Angkor International Airport) and Udon Thani (Udon Thani International Airport) is 292 miles / 470 kilometers / 254 nautical miles.

The driving distance from Siem Reap (SAI) to Udon Thani (UTH) is 469 miles / 755 kilometers, and travel time by car is about 9 hours 24 minutes.

Siem Reap–Angkor International Airport – Udon Thani International Airport

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292
Miles
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470
Kilometers
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254
Nautical miles

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Distance from Siem Reap to Udon Thani

There are several ways to calculate the distance from Siem Reap to Udon Thani. Here are two standard methods:

Vincenty's formula (applied above)
  • 292.323 miles
  • 470.447 kilometers
  • 254.021 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
  • 293.560 miles
  • 472.438 kilometers
  • 255.096 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 Siem Reap to Udon Thani?

The estimated flight time from Siem Reap–Angkor International Airport to Udon Thani International Airport is 1 hour and 3 minutes.

What is the time difference between Siem Reap and Udon Thani?

There is no time difference between Siem Reap and Udon Thani.

Flight carbon footprint between Siem Reap–Angkor International Airport (SAI) and Udon Thani International Airport (UTH)

On average, flying from Siem Reap to Udon Thani generates about 68 kg of CO2 per passenger, and 68 kilograms equals 150 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Siem Reap to Udon Thani

See the map of the shortest flight path between Siem Reap–Angkor International Airport (SAI) and Udon Thani International Airport (UTH).

Airport information

Origin Siem Reap–Angkor International Airport
City: Siem Reap
Country: Cambodia Flag of Cambodia
IATA Code: SAI
ICAO Code: VDSA
Coordinates: 13°22′9″N, 104°13′23″E
Destination Udon Thani International Airport
City: Udon Thani
Country: Thailand Flag of Thailand
IATA Code: UTH
ICAO Code: VTUD
Coordinates: 17°23′11″N, 102°47′16″E