The cheapest flight to Belfast you can get by boooking 24 days before departure.
The most popular airlines on the route London - Belfast: Ryanair (FR), easyJet (U2), Flybe (BE).
The cheapest flights you can book on the route Luton (LTN) - Belfast Intl Airport (BFS).
Direct flights last about 1h 15min.
Direct flights available 7 days a week.
Direct flights: easyJet (U2), Ryanair (FR), Flybe (BE).