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PRM to USM: distance & flight time
Portimao (Portimão Airport) → Ko Samui (Samui Airport)
6,819 mi
10,974 km · 5,926 nm
13h 50m
estimated nonstop flight time
+6h
time difference · heading east
See live PRM→USM fares Phone-only fares on this route — call free
Flight time details
6,819 miles nonstop takes roughly 13h 50m gate to gate, flying east. 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
- USM — Samui Airport · Ko Samui, 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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Frequently asked questions
How far is PRM from USM?
The flight distance from Portimao (PRM) to Ko Samui (USM) is 6,819 miles (10,974 km, 5,926 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PRM to USM?
A nonstop flight takes about 13h 50m 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 Ko Samui?
Ko Samui is 6 hours ahead of Portimao.
What is the cheapest way to fly from PRM to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PRM–USM that never appear on search engines, with no booking fees.