Need help booking?
Unpublished phone-only deals available
CNX to HEK: distance & flight time
Chiang Mai (Chiang Mai International Airport) → Heihe (Heihe Airport)
2,672 mi
4,300 km · 2,322 nm
5h 42m
estimated nonstop flight time
+1h
time difference · heading northeast
See live CNX→HEK fares Phone-only fares on this route — call free
Flight time details
2,672 miles nonstop takes roughly 5h 42m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- CNX — Chiang Mai International Airport · Chiang Mai, Thailand
- HEK — Heihe Airport · Heihe, China
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 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
Near HEK
- BQS · Ignatyevo Airport18 mi away
- DTU · Wudalianchi Dedu Airport131 mi away
- JGD · Jiagedaqi Airport142 mi away
Frequently asked questions
How far is CNX from HEK?
The flight distance from Chiang Mai (CNX) to Heihe (HEK) 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 CNX to HEK?
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 Chiang Mai and Heihe?
Heihe is 1 hour ahead of Chiang Mai.
What is the cheapest way to fly from CNX to HEK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CNX–HEK that never appear on search engines, with no booking fees.