Air Miles Calculator

Distance between Hat Yai (HDY) and Chiang Mai (CNX)

Flight distance from Hat Yai to Chiang Mai (Hat Yai International Airport – Chiang Mai International Airport) is 819 miles / 1318 kilometers / 712 nautical miles. Estimated flight time is 2 hours 3 minutes.

Driving distance from Hat Yai (HDY) to Chiang Mai (CNX) is 1008 miles / 1622 kilometers and travel time by car is about 18 hours 32 minutes.

Map of flight path and driving directions from Hat Yai to Chiang Mai.

Shortest flight path between Hat Yai International Airport (HDY) and Chiang Mai International Airport (CNX).

How far is Chiang Mai from Hat Yai?

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

Vincenty's formula (applied above)
  • 819.167 miles
  • 1318.321 kilometers
  • 711.836 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
  • 823.258 miles
  • 1324.906 kilometers
  • 715.392 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 Flag of Thailand
IATA Code: HDY
ICAO Code: VTSS
Coordinates: 6°55′59″N, 100°23′34″E

B Chiang Mai International Airport
City: Chiang Mai
Country: Thailand Flag of Thailand
IATA Code: CNX
ICAO Code: VTCC
Coordinates: 18°46′0″N, 98°57′45″E

Time difference and current local times

There is no time difference between Hat Yai and Chiang Mai.

Time Difference

Hat Yai

 +07

Chiang Mai

 +07

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 137 kg (301 pounds).

Frequent Flyer Miles Calculator

Hat Yai (HDY) → Chiang Mai (CNX).

Distance:
819
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
819

Round trip?