# Distance between Hat Yai (HDY) and Sainyabuli (ZBY)

Flight distance from Hat Yai to Sainyabuli (Hat Yai International Airport – Sayaboury Airport) is 851 miles / 1369 kilometers / 739 nautical miles. Estimated flight time is 2 hours 6 minutes.

Driving distance from Hat Yai (HDY) to Sainyabuli (ZBY) is 1052 miles / 1693 kilometers and travel time by car is about 20 hours 16 minutes.

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

Shortest flight path between Hat Yai International Airport (HDY) and Sayaboury Airport (ZBY).

## How far is Sainyabuli from Hat Yai?

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

Vincenty's formula (applied above)
• 850.898 miles
• 1369.388 kilometers
• 739.410 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
• 855.147 miles
• 1376.226 kilometers
• 743.102 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 Sayaboury Airport
City: Sainyabuli
Country: Laos
IATA Code: ZBY
ICAO Code: VLSB
Coordinates: 19°14′36″N, 101°42′33″E

## Time difference and current local times

There is no time difference between Hat Yai and Sainyabuli.

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## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 139 kg (307 pounds).

## Frequent Flyer Miles Calculator

Hat Yai (HDY) → Sainyabuli (ZBY).

Distance:
851
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
851

Round trip?