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HEK to CEI: distance & flight time
Heihe (Heihe Airport) → Chiang Rai (Chiang Rai International Airport)
2,571 mi
4,137 km · 2,234 nm
5h 30m
estimated nonstop flight time
-1h
time difference · heading southwest
See live HEK→CEI fares Phone-only fares on this route — call free
Flight time details
2,571 miles nonstop takes roughly 5h 30m 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
- CEI — Chiang Rai International Airport · Chiang Rai, 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 CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
Frequently asked questions
How far is HEK from CEI?
The flight distance from Heihe (HEK) to Chiang Rai (CEI) is 2,571 miles (4,137 km, 2,234 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEK to CEI?
A nonstop flight takes about 5h 30m 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 Rai?
Chiang Rai is 1 hour behind Heihe.
What is the cheapest way to fly from HEK to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEK–CEI that never appear on search engines, with no booking fees.