Athens (ATH) to Belgrade (BEG): 511 miles (823 km) great-circle, about 1h 30m nonstop by our estimate. Cheapest fare observed: $204 round-trip on Aegean Airlines, nonstop, departing May 8, 2026.
$204 round-trip, Aegean Airlines A3976, departing 2026-05-08 at 13:30, returning 2026-05-12. The recorded itinerary left on a Friday, returning on a Tuesday 4 nights later; the fare was observed 13 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $204, it ranked 19th of the 30 round-trip fares we recorded from ATH (median $173). That is 39.9 cents per great-circle mile (round-trip price over one-way distance), above the ATH median of 28.4 cents across 30 round-trip routes.
Routes from ATH of similar length: Naples (554 mi) at $173 and Larnaca (578 mi) at $173.
Aegean Airlines had the cheapest fare on 2 of 30 ATH routes. It is the 25th longest of the 30 routes we track from ATH.
Of 36 departure airports with a fare to Belgrade, Athens (ATH) ranked 14th at $204. Lowest: $80 from Rome (FCO); highest: $1665 from Buenos Aires (EZE); 11 nonstop. Cheapest-fare airlines (routes): easyJet (6), Wizz Air (6), Vueling (4), Ryanair (3), Wizz Air Malta (3) and Air Serbia (2), plus 10 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Athens, Europe/Belgrade; flight time is our estimate.