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HEK to CNX: distance & flight time
Heihe (Heihe Airport) → Chiang Mai (Chiang Mai International Airport)
2,672 mi
4,300 km · 2,322 nm
5h 42m
estimated nonstop flight time
-1h
time difference · heading southwest
See live HEK→CNX fares Phone-only fares on this route — call free
Flight time details
2,672 miles nonstop takes roughly 5h 42m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- HEK — Heihe Airport · Heihe, China
- CNX — Chiang Mai International Airport · Chiang Mai, Thailand
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near HEK
- BQS · Ignatyevo Airport18 mi away
- DTU · Wudalianchi Dedu Airport131 mi away
- JGD · Jiagedaqi Airport142 mi away
Near CNX
- LPT · Lampang Airport49 mi away
- PYY · Mae Hong Son Airport54 mi away
- HGN · Mae Hong Son Airport74 mi away
- PRH · Phrae Airport90 mi away
Frequently asked questions
How far is HEK from CNX?
The flight distance from Heihe (HEK) to Chiang Mai (CNX) is 2,672 miles (4,300 km, 2,322 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEK to CNX?
A nonstop flight takes about 5h 42m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Heihe and Chiang Mai?
Chiang Mai is 1 hour behind Heihe.
What is the cheapest way to fly from HEK to CNX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEK–CNX that never appear on search engines, with no booking fees.