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HEM to CEI: distance & flight time
Helsinki (Helsinki Malmi Airport) → Chiang Rai (Chiang Rai International Airport)
4,510 mi
7,258 km · 3,919 nm
9h 19m
estimated nonstop flight time
+4h
time difference · heading east
See live HEM→CEI fares Phone-only fares on this route — call free
Flight time details
4,510 miles nonstop takes roughly 9h 19m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time gain when reading arrival times on your ticket.
The two airports
- HEM — Helsinki Malmi Airport · Helsinki, Finland
- 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 HEM
- HEL · Helsinki Vantaa Airport5 mi away
- HYV · Hyvinkää Airfield28 mi away
- TLL · Lennart Meri Tallinn Airport59 mi away
- QLF · Lahti Vesivehmaa Airport65 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 HEM from CEI?
The flight distance from Helsinki (HEM) to Chiang Rai (CEI) is 4,510 miles (7,258 km, 3,919 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEM to CEI?
A nonstop flight takes about 9h 19m 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 Helsinki and Chiang Rai?
Chiang Rai is 4 hours ahead of Helsinki.
What is the cheapest way to fly from HEM to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEM–CEI that never appear on search engines, with no booking fees.