Düsseldorf (DUS) to Barcelona (BCN): 725 miles (1,167 km) great-circle, about 1h 55m nonstop by our estimate. Cheapest fare observed: $100 round-trip on airline 4X, nonstop, departing June 9, 2026.
$100 round-trip, airline 4X 4X9444, departing 2026-06-09 at 16:55, returning 2026-06-16. The recorded itinerary left on a Tuesday, returning on a Tuesday 7 nights later; the fare was observed 45 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $100, it ranked 2nd of the 30 round-trip fares we recorded from DUS (median $346). That is 13.8 cents per great-circle mile (round-trip price over one-way distance), below the DUS median of 22.2 cents across 30 round-trip routes.
Routes from DUS of similar length: Warsaw (610 mi) at $164 and Tallinn (900 mi) at $201.
DUS to BCN is the only one of 30 DUS routes where airline 4X priced cheapest. It is the 26th longest of the 30 routes we track from DUS.
Of 57 departure airports with a fare to Barcelona, Düsseldorf (DUS) ranked 17th at $100. Lowest: $44 from Milan (MXP); highest: $1401 from Brisbane (BNE); 28 nonstop. Cheapest-fare airlines (routes): Vueling (11), Wizz Air (10), Ryanair (8), Air Canada (4), Air Europa (3) and Wizz Air Malta (3), plus 18 more.
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/Berlin, Europe/Madrid; flight time is our estimate.