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Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSR–CEI that never appear on search engines, with no booking fees.