CNX to HKT: Distance and Flight Time

How far is it from Chiang Mai to Phuket?

The great-circle distance between Chiang Mai International Airport (CNX) and Phuket International Airport (HKT) is 1,187 km (737 mi, 641 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.

How long is the flight from CNX to HKT?

A nonstop flight typically takes about 2h. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. HKT is roughly south of CNX.

How is the CNX to HKT route written in code?

The pair is written CNX-HKT in IATA codes and VTCC-VTSP in ICAO codes, the form used on a flight plan. Chiang Mai International Airport is CNX (VTCC), Phuket International Airport is HKT (VTSP).

Both ICAO codes start with V, the prefix ICAO assigns to South and Southeast Asia, so this is a route inside one ICAO region. How ICAO prefixes are laid out.

HKT sits 954 ft (291 m) lower than CNX, which is a real difference in air density on takeoff.

Airlines flying CNX to HKT

2 airlines appear on this route in the open route dataset, 2 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:

Route and carrier data comes from the OpenFlights open dataset, regenerated here on 3 July 2026. It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.

Frequently asked questions

CNX airport code · HKT airport code · Busiest airports worldwide