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GRF to OPO: distance & flight time
Fort Lewis (Gray Army Air Field) → Porto (Francisco de Sá Carneiro Airport)
5,114 mi
8,230 km · 4,444 nm
10h 30m
estimated nonstop flight time
+8h
time difference · heading northeast
See live GRF→OPO fares Phone-only fares on this route — call free
Flight time details
5,114 miles nonstop takes roughly 10h 30m 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
- GRF — Gray Army Air Field · Fort Lewis, United States
- OPO — Francisco de Sá Carneiro Airport · Porto, 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 GRF
- SEA · Seattle Tacoma International Airport29 mi away
- TCM · McChord Air Force Base6 mi away
- TIW · Tacoma Narrows Airport13 mi away
- OLM · Olympia Regional Airport17 mi away
Near OPO
- BGZ · Braga Municipal Aerodrome26 mi away
- VRL · Vila Real Airport50 mi away
- VSE · Aerodromo Goncalves Lobato (Viseu Airport)55 mi away
- VGO · Vigo Airport68 mi away
Frequently asked questions
How far is GRF from OPO?
The flight distance from Fort Lewis (GRF) to Porto (OPO) is 5,114 miles (8,230 km, 4,444 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to OPO?
A nonstop flight takes about 10h 30m 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 Fort Lewis and Porto?
Porto is 8 hours ahead of Fort Lewis.
What is the cheapest way to fly from GRF to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–OPO that never appear on search engines, with no booking fees.