Zagreb (ZAG) to Barcelona (BCN): 764 miles (1,229 km) great-circle, about 2h 00m nonstop by our estimate. Cheapest fare observed: $336 round-trip on Croatia Airlines, nonstop, departing May 7, 2026.
$336 round-trip, Croatia Airlines OU374, departing 2026-05-07 at 15:20, returning 2026-05-09. The recorded itinerary left on a Thursday, returning on a Saturday 2 nights later; the fare was observed 12 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $336, it ranked 14th of the 30 round-trip fares we recorded from ZAG (median $377). That is 44.0 cents per great-circle mile (round-trip price over one-way distance), above the ZAG median of 27.0 cents across 30 round-trip routes.
Routes from ZAG of similar length: Istanbul (705 mi) at $179 and Malta (689 mi) at $84.
Croatia Airlines had the cheapest fare on 4 of 30 ZAG routes. It is the 20th longest of the 30 routes we track from ZAG.
Of 57 departure airports with a fare to Barcelona, Zagreb (ZAG) ranked 39th at $336. 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/Zagreb, Europe/Madrid; flight time is our estimate.