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PRM to CEI: distance & flight time
Portimao (Portimão Airport) → Chiang Rai (Chiang Rai International Airport)
6,342 mi
10,207 km · 5,511 nm
12h 54m
estimated nonstop flight time
+6h
time difference · heading northeast
See live PRM→CEI fares Phone-only fares on this route — call free
Flight time details
6,342 miles nonstop takes roughly 12h 54m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- PRM — Portimão Airport · Portimao, Portugal
- 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 PRM
- FAO · Faro Airport35 mi away
- BYJ · Beja Airport / Airbase73 mi away
- CAT · Cascais Airport117 mi away
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)117 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 PRM from CEI?
The flight distance from Portimao (PRM) to Chiang Rai (CEI) is 6,342 miles (10,207 km, 5,511 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PRM to CEI?
A nonstop flight takes about 12h 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 Portimao and Chiang Rai?
Chiang Rai is 6 hours ahead of Portimao.
What is the cheapest way to fly from PRM to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PRM–CEI that never appear on search engines, with no booking fees.