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CEI to OTP: distance & flight time
Chiang Rai (Chiang Rai International Airport) → Bucharest (Henri Coandă International Airport)
4,475 mi
7,202 km · 3,889 nm
9h 14m
estimated nonstop flight time
-4h
time difference · heading northwest
See live CEI→OTP fares Phone-only fares on this route — call free
Flight time details
4,475 miles nonstop takes roughly 9h 14m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.
The two airports
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
- OTP — Henri Coandă International Airport · Bucharest, Romania
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 CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
Near OTP
- BBU · Băneasa International Airport5 mi away
- GOZ · Gorna Oryahovitsa Airport100 mi away
- CRA · Craiova Airport110 mi away
- CND · Mihail Kogălniceanu International Airport119 mi away
Frequently asked questions
How far is CEI from OTP?
The flight distance from Chiang Rai (CEI) to Bucharest (OTP) is 4,475 miles (7,202 km, 3,889 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CEI to OTP?
A nonstop flight takes about 9h 14m 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 Rai and Bucharest?
Bucharest is 4 hours behind Chiang Rai.
What is the cheapest way to fly from CEI to OTP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEI–OTP that never appear on search engines, with no booking fees.