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CSM to PRM: distance & flight time
Clinton (Clinton Sherman Airport) → Portimao (Portimão Airport)
4,835 mi
7,782 km · 4,202 nm
9h 57m
estimated nonstop flight time
+6h
time difference · heading northeast
See live CSM→PRM fares Phone-only fares on this route — call free
Flight time details
4,835 miles nonstop takes roughly 9h 57m 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
- CSM — Clinton Sherman Airport · Clinton, United States
- PRM — Portimão Airport · Portimao, Portugal
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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 mi away
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
Frequently asked questions
How far is CSM from PRM?
The flight distance from Clinton (CSM) to Portimao (PRM) is 4,835 miles (7,782 km, 4,202 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CSM to PRM?
A nonstop flight takes about 9h 57m 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 Clinton and Portimao?
Portimao is 6 hours ahead of Clinton.
What is the cheapest way to fly from CSM to PRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CSM–PRM that never appear on search engines, with no booking fees.