London (LHR) to Belfast (BFS): 325 miles (523 km) great-circle, about 1h 10m nonstop by our estimate. Cheapest fare observed: $196 round-trip on British Airways, nonstop, departing May 19, 2026.
$196 round-trip, British Airways BA1396, departing 2026-05-19 at 11:30, returning 2026-05-22. The recorded itinerary left on a Tuesday, returning on a Friday 3 nights later; the fare was observed 24 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $196, it ranked 4th of the 30 round-trip fares we recorded from LHR (median $624). That is 60.4 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: Edinburgh (332 mi) at $162 and Paris (216 mi) at $165.
British Airways had the cheapest fare on 6 of 30 LHR routes. It is the 29th longest of the 30 routes we track from LHR.
Of 3 departure airports with a fare to Belfast, London (LHR) ranked 3rd at $196. Lowest: $41 from Manchester (MAN); highest: $196 from London (LHR); 3 nonstop. Cheapest-fare airlines (routes): British Airways (1), easyJet (1) and Ryanair UK (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/London, Europe/London; flight time is our estimate.