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PRM to ALN: distance & flight time
Portimao (Portimão Airport) → Alton/St Louis (St Louis Regional Airport)
4,276 mi
6,881 km · 3,716 nm
8h 51m
estimated nonstop flight time
—
time difference · heading northwest
See live PRM→ALN fares Phone-only fares on this route — call free
Flight time details
4,276 miles nonstop takes roughly 8h 51m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- PRM — Portimão Airport · Portimao, Portugal
- ALN — St Louis Regional Airport · Alton/St Louis, United States
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 ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is PRM from ALN?
The flight distance from Portimao (PRM) to Alton/St Louis (ALN) is 4,276 miles (6,881 km, 3,716 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PRM to ALN?
A nonstop flight takes about 8h 51m 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 cheapest way to fly from PRM to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PRM–ALN that never appear on search engines, with no booking fees.