AirHint found the following cheapest one-way flights from London (LHR) to Dublin (DUB) in December 2026 (see full year).
One-Way flights
| 06 Dec | British Airways | direct | |
| 13 Dec | British Airways | direct | |
| 23 Dec | Iberia | ||
| 27 Dec | Iberia | ||
| 21 Dec | KLM | ||
| 24 Dec | Air France | ||
| 25 Dec | KLM | ||
| 29 Dec | KLM | ||
| 23 Dec | Aer Lingus | direct | |
| 21 Dec | Aer Lingus | direct |
Also check the deals for return flights from London 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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