Porto (OPO) to Brussels (BRU): 916 miles (1,473 km) great-circle, about 2h 20m nonstop by our estimate. Cheapest fare observed: $137 round-trip on Ryanair, with 1 stop, departing May 25, 2026.
$137 round-trip, Ryanair FR7802, departing 2026-05-25 at 20:50, returning 2026-06-01. The recorded itinerary left on a Monday, returning on a Monday 7 nights later; the fare was observed 30 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $137, it ranked 10th of the 30 round-trip fares we recorded from OPO (median $202). That is 15.0 cents per great-circle mile (round-trip price over one-way distance), below the OPO median of 19.7 cents across 30 round-trip routes.
Routes from OPO of similar length: Milan (922 mi) at $143 and Luxembourg (923 mi) at $202.
Ryanair had the cheapest fare on 17 of 30 OPO routes. It is the 20th longest of the 30 routes we track from OPO.
Of 10 departure airports with a fare to Brussels, Porto (OPO) ranked 3rd at $137. Lowest: $40 from Warsaw (WAW); highest: $1178 from Santo Domingo (SDQ); 3 nonstop. Cheapest-fare airlines (routes): Wizz Air (3), Air Canada (2), Ryanair (2), Air Europa (1), Egyptair (1) and SAS (1).
The reverse, Brussels (BRU) to Porto (OPO), was $163 round-trip on Ryanair, 1 stop, departing May 27, 2026. Brussels to Porto flights.
That depends on your passport and trip, so check the official source for Belgium: 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/Brussels; flight time is our estimate.