# Distance between Hat Yai (HDY) and Siem Reap (REP)

Flight distance from Hat Yai to Siem Reap (Hat Yai International Airport – Siem Reap International Airport) is 502 miles / 808 kilometers / 437 nautical miles. Estimated flight time is 1 hour 27 minutes.

Driving distance from Hat Yai (HDY) to Siem Reap (REP) is 833 miles / 1341 kilometers and travel time by car is about 15 hours 10 minutes.

## Map of flight path and driving directions from Hat Yai to Siem Reap.

Shortest flight path between Hat Yai International Airport (HDY) and Siem Reap International Airport (REP).

## How far is Siem Reap from Hat Yai?

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

Vincenty's formula (applied above)
• 502.360 miles
• 808.470 kilometers
• 436.539 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
• 504.317 miles
• 811.619 kilometers
• 438.239 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 Siem Reap International Airport
City: Siem Reap
Country: Cambodia
IATA Code: REP
ICAO Code: VDSR
Coordinates: 13°24′38″N, 103°48′46″E

## Time difference and current local times

There is no time difference between Hat Yai and Siem Reap.

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## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 99 kg (218 pounds).

## Frequent Flyer Miles Calculator

Hat Yai (HDY) → Siem Reap (REP).

Distance:
502
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
502

Round trip?