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IKA to CEI: distance & flight time
Tehran (Imam Khomeini International Airport) → Chiang Rai (Chiang Rai International Airport)
3,132 mi
5,040 km · 2,722 nm
6h 36m
estimated nonstop flight time
+3.5h
time difference · heading east
See live IKA→CEI fares Phone-only fares on this route — call free
Flight time details
3,132 miles nonstop takes roughly 6h 36m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time gain when reading arrival times on your ticket.
The two airports
- IKA — Imam Khomeini International Airport · Tehran, Iran
- 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 IKA
- THR · Mehrabad International Airport21 mi away
- PYK · Payam International Airport31 mi away
- GZW · Qazvin Airport84 mi away
- NSH · Noshahr Airport88 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 IKA from CEI?
The flight distance from Tehran (IKA) to Chiang Rai (CEI) is 3,132 miles (5,040 km, 2,722 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IKA to CEI?
A nonstop flight takes about 6h 36m 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 Tehran and Chiang Rai?
Chiang Rai is 3.5 hours ahead of Tehran.
What is the cheapest way to fly from IKA to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IKA–CEI that never appear on search engines, with no booking fees.