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SEA to PRM: distance & flight time
Seattle (Seattle Tacoma International Airport) → Portimao (Portimão Airport)
5,308 mi
8,542 km · 4,612 nm
10h 52m
estimated nonstop flight time
+8h
time difference · heading northeast
See live SEA→PRM fares Phone-only fares on this route — call free
Flight time details
5,308 miles nonstop takes roughly 10h 52m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 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 SEA from PRM?
The flight distance from Seattle (SEA) to Portimao (PRM) is 5,308 miles (8,542 km, 4,612 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to PRM?
A nonstop flight takes about 10h 52m 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 Seattle and Portimao?
Portimao is 8 hours ahead of Seattle.
What is the cheapest way to fly from SEA to PRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–PRM that never appear on search engines, with no booking fees.