Porto (OPO) to Madrid (MAD): 272 miles (438 km) great-circle, about 1h 05m nonstop by our estimate. Cheapest fare observed: $63 round-trip on Ryanair, nonstop, departing May 5, 2026.
$63 round-trip, Ryanair FR5483, departing 2026-05-05 at 21:30, returning 2026-05-08. The recorded itinerary left on a Tuesday, returning on a Friday 3 nights later; the fare was observed 10 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $63, it ranked 2nd of the 30 round-trip fares we recorded from OPO (median $202). That is 23.2 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: Faro (295 mi) at $110 and Bilbao (327 mi) at $149.
Ryanair had the cheapest fare on 17 of 30 OPO routes. It is the 30th longest of the 30 routes we track from OPO.
Of 35 departure airports with a fare to Madrid, Porto (OPO) ranked 2nd at $63. Lowest: $46 from Lisbon (LIS); highest: $1698 from Sydney (SYD); 13 nonstop. Cheapest-fare airlines (routes): United Airlines (4), Wizz Air (4), Air China (2), American Airlines (2), Ryanair (2) and TAP Portugal (2), plus 17 more.
The reverse, Madrid (MAD) to Porto (OPO), was $70 round-trip on Air Europa, nonstop, departing April 30, 2026. Madrid to Porto flights.
That depends on your passport and trip, so check the official source for Spain: 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/Madrid; flight time is our estimate.