Porto (OPO) to Luxembourg (LUX): 923 miles (1,485 km) great-circle, about 2h 20m nonstop by our estimate. Cheapest fare observed: $202 round-trip on Ryanair, with 1 stop, departing May 4, 2026.
$202 round-trip, Ryanair FR7802, departing 2026-05-04 at 20:50, returning 2026-05-07. The recorded itinerary left on a Monday, returning on a Thursday 3 nights later; the fare was observed 9 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $202, it ranked 15th of the 30 round-trip fares we recorded from OPO (median $202). That is 21.9 cents per great-circle mile (round-trip price over one-way distance), above the OPO median of 19.7 cents across 30 round-trip routes.
Routes from OPO of similar length: Milan (922 mi) at $143 and Brussels (916 mi) at $137.
Ryanair had the cheapest fare on 17 of 30 OPO routes. It is the 18th longest of the 30 routes we track from OPO.
The reverse, Luxembourg (LUX) to Porto (OPO), was $114 round-trip on Ryanair, nonstop, departing May 30, 2026. Luxembourg to Porto flights.
That depends on your passport and trip, so check the official source for Luxembourg: European Commission: Schengen visa policy. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Lisbon, Europe/Luxembourg; flight time is our estimate.