London (LHR) to Belgrade (BEG): 1,057 miles (1,701 km) great-circle, about 2h 35m nonstop by our estimate. Cheapest fare observed: $271 round-trip on LOT Polish, with 1 stop, departing June 15, 2026.
$271 round-trip, LOT Polish LO280, departing 2026-06-15 at 18:10, returning 2026-06-18. The recorded itinerary left on a Monday, returning on a Thursday 3 nights later; the fare was observed 51 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $271, it ranked 7th of the 30 round-trip fares we recorded from LHR (median $624). That is 25.6 cents per great-circle mile (round-trip price over one-way distance), above the LHR median of 22.9 cents across 30 round-trip routes.
Routes from LHR of similar length: St. Petersburg (1,313 mi) at $677 and Chisinau (1,354 mi) at $297.
LHR to BEG is the only one of 30 LHR routes where LOT Polish priced cheapest. It is the 24th longest of the 30 routes we track from LHR.
Of 36 departure airports with a fare to Belgrade, London (LHR) ranked 25th at $271. 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/London, Europe/Belgrade; flight time is our estimate.