# 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.

### Time Difference

### Hat Yai

### Siem Reap

## Carbon dioxide emissions

Estimated CO_{2} emissions per passenger is 99 kg (218 pounds).

## Frequent Flyer Miles Calculator

Hat Yai (HDY) → Siem Reap (REP).

### In total

Round trip?