Miami (MIA) to Barcelona (BCN): 4,688 miles (7,545 km) great-circle, about 9h 55m nonstop by our estimate. Cheapest fare observed: $889 round-trip on Spirit, with 3 stops, departing May 19, 2026.
$889 round-trip, Spirit NK996, departing 2026-05-19 at 10:57, returning 2026-05-26. The recorded itinerary left on a Tuesday, returning on a Tuesday 7 nights later; the fare was observed 24 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $889, it ranked 22nd of the 30 round-trip fares we recorded from MIA (median $480). That is 19.0 cents per great-circle mile (round-trip price over one-way distance), close to the MIA median of 18.9 cents across 30 round-trip routes.
Routes from MIA of similar length: Paris (4,581 mi) at $1091 and Milan (4,921 mi) at $594.
Spirit had the cheapest fare on 5 of 30 MIA routes. It is the 8th longest of the 30 routes we track from MIA.
Of 57 departure airports with a fare to Barcelona, Miami (MIA) ranked 47th at $889. 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 America/New_York, Europe/Madrid; flight time is our estimate.