Cheapest return flights from London to Dublin in December from $104

AirHint found the following cheapest return flights from London (LHR) to Dublin (DUB) in December 2026 (see full year).

Return flights

05 Dec - 05 Dec British Airways direct
12 Dec - 12 Dec British Airways direct
04 Dec - 07 Dec British Airways direct
01 Dec - 08 Dec British Airways direct
06 Dec - 09 Dec British Airways direct
11 Dec - 14 Dec British Airways direct
01 Dec - 04 Dec British Airways direct
04 Dec - 06 Dec British Airways direct
11 Dec - 13 Dec British Airways direct
05 Dec - 13 Dec Aer Lingus direct
19 Dec - 03 Jan KLM
19 Dec - 02 Jan KLM
27 Dec - 03 Jan KLM
27 Dec - 10 Jan KLM
29 Dec - 01 Jan KLM
22 Dec - 10 Jan KLM
26 Dec - 01 Jan KLM
27 Dec - 03 Jan British Airways direct
19 Dec - 02 Jan British Airways direct
19 Dec - 03 Jan British Airways direct

Also check the deals for one-way 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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