Madrid (MAD) to Porto (OPO): 272 miles (438 km) great-circle, about 1h 05m nonstop by our estimate. Cheapest fare observed: $70 round-trip on Air Europa, nonstop, departing April 30, 2026.
$70 round-trip, Air Europa UX1147, departing 2026-04-30 at 06:35, returning 2026-05-04. The recorded itinerary left on a Thursday, returning on a Monday 4 nights later; the fare was observed 5 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $70, it was the cheapest of the 30 round-trip fares we recorded from MAD (median $182). That is 25.7 cents per great-circle mile (round-trip price over one-way distance), above the MAD median of 17.6 cents across 30 round-trip routes.
Routes from MAD of similar length: Malaga (269 mi) at $90 and Barcelona (300 mi) at $116.
Air Europa had the cheapest fare on 4 of 30 MAD routes. It is the 29th longest of the 30 routes we track from MAD.
Of 7 departure airports with a fare to Porto, Madrid (MAD) ranked 2nd at $70. Lowest: $65 from Barcelona (BCN); highest: $227 from Geneva (GVA); 3 nonstop. Cheapest-fare airlines (routes): Ryanair (3), easyJet (2), Air Europa (1) and Wizz Air (1).
The reverse, Porto (OPO) to Madrid (MAD), was $63 round-trip on Ryanair, nonstop, departing May 5, 2026. Porto to Madrid flights.
That depends on your passport and trip, so check the official source for Portugal: 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/Madrid, Europe/Lisbon; flight time is our estimate.