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CEI to OSR: distance & flight time
Chiang Rai (Chiang Rai International Airport) → Ostrava (Ostrava Leos Janáček Airport)
4,814 mi
7,748 km · 4,184 nm
9h 54m
estimated nonstop flight time
-5h
time difference · heading northwest
See live CEI→OSR fares Phone-only fares on this route — call free
Flight time details
4,814 miles nonstop takes roughly 9h 54m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
- OSR — Ostrava Leos Janáček Airport · Ostrava, Czech Republic
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 OSR
- PRV · Přerov Air Base37 mi away
- ILZ · Žilina Airport39 mi away
- UHE · Kunovice Airport55 mi away
- KTW · Katowice International Airport69 mi away
Frequently asked questions
How far is CEI from OSR?
The flight distance from Chiang Rai (CEI) to Ostrava (OSR) is 4,814 miles (7,748 km, 4,184 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CEI to OSR?
A nonstop flight takes about 9h 54m 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 Ostrava?
Ostrava is 5 hours behind Chiang Rai.
What is the cheapest way to fly from CEI to OSR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEI–OSR that never appear on search engines, with no booking fees.