Cheapest one-way flights from London to Belfast in December from $35

Best time to book flights for London (LON) to Belfast (BFS) flights at AirHint

AirHint found the following cheapest one-way flights from London (LON) to Belfast (BFS) in December 2025 (see full year).

One-Way flights

19 Dec Ryanair direct
13 Dec Ryanair direct
27 Dec Ryanair direct
11 Dec Ryanair direct
05 Dec Ryanair direct
15 Dec Ryanair direct
16 Dec Ryanair direct
06 Dec Ryanair direct
30 Dec Ryanair direct
31 Dec Ryanair direct

Also check the deals for return flights from London to Belfast in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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