AirHint found the following cheapest return flights from Belfast (BFS) to Dublin (DUB) in December 2025 (see full year).
Return flights
| 19 Dec - 02 Jan | easyJet | ||
| 06 Dec - 08 Dec | easyJet | ||
| 12 Dec - 19 Dec | Ryanair | ||
| 12 Dec - 14 Dec | easyJet | ||
| 24 Dec - 26 Dec | Ryanair | ||
| 04 Dec - 07 Dec | easyJet | ||
| 07 Dec - 07 Dec | easyJet |
Also check the deals for one-way flights from Belfast to Dublin in December.
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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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