# How far is Rayong from Hat Yai?

The distance between Hat Yai (Hat Yai International Airport) and Rayong (U-Tapao International Airport) is 397 miles / 639 kilometers / 345 nautical miles.

The driving distance from Hat Yai (HDY) to Rayong (UTP) is 685 miles / 1102 kilometers, and travel time by car is about 13 hours 24 minutes.

397
Miles
639
Kilometers
345
Nautical miles
1 h 15 min

## Distance from Hat Yai to Rayong

There are several ways to calculate the distance from Hat Yai to Rayong. Here are two standard methods:

Vincenty's formula (applied above)
• 397.155 miles
• 639.159 kilometers
• 345.118 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
• 399.237 miles
• 642.509 kilometers
• 346.927 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 Hat Yai to Rayong?

The estimated flight time from Hat Yai International Airport to U-Tapao International Airport is 1 hour and 15 minutes.

## What is the time difference between Hat Yai and Rayong?

There is no time difference between Hat Yai and Rayong.

## Flight carbon footprint between Hat Yai International Airport (HDY) and U-Tapao International Airport (UTP)

On average, flying from Hat Yai to Rayong generates about 83 kg of CO2 per passenger, and 83 kilograms equals 184 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Hat Yai International Airport (HDY) and U-Tapao International Airport (UTP).

## Airport information

Origin Hat Yai International Airport
City: Hat Yai
Country: Thailand
IATA Code: HDY
ICAO Code: VTSS
Coordinates: 6°55′59″N, 100°23′34″E
Destination U-Tapao International Airport
City: Rayong
Country: Thailand
IATA Code: UTP
ICAO Code: VTBU
Coordinates: 12°40′47″N, 101°0′17″E