Distance between Hat Yai (HDY) and Roi Et (ROI)

Flight distance from Hat Yai to Roi Et (Hat Yai International Airport – Roi Et Airport) is 671 miles / 1081 kilometers / 583 nautical miles. Estimated flight time is 1 hour 46 minutes.

Driving distance from Hat Yai (HDY) to Roi Et (ROI) is 912 miles / 1468 kilometers and travel time by car is about 16 hours 33 minutes.

Map of flight path and driving directions from Hat Yai to Roi Et.

Shortest flight path between Hat Yai International Airport (HDY) and Roi Et Airport (ROI).

How far is Roi Et from Hat Yai?

There are several ways to calculate distances between Hat Yai and Roi Et. Here are two common methods:

Vincenty's formula (applied above)
• 671.470 miles
• 1080.627 kilometers
• 583.492 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 674.455 miles
• 1085.429 kilometers
• 586.085 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).

Airport information

A Hat Yai International Airport
City: Hat Yai
Country: Thailand
IATA Code: HDY
ICAO Code: VTSS
Coordinates: 6°55′59″N, 100°23′34″E

B Roi Et Airport
City: Roi Et
Country: Thailand
IATA Code: ROI
ICAO Code: VTUV
Coordinates: 16°7′0″N, 103°46′26″E

Time difference and current local times

There is no time difference between Hat Yai and Roi Et.

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Carbon dioxide emissions

Estimated CO2 emissions per passenger is 121 kg (268 pounds).

Frequent Flyer Miles Calculator

Hat Yai (HDY) → Roi Et (ROI).

Distance:
671
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
671

Round trip?