Cheapest return flights from London to Dublin in September from $105

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

Return flights

13 Sep - 21 Sep British Airways direct
14 Sep - 16 Sep British Airways direct
01 Sep - 08 Sep British Airways direct
14 Sep - 21 Sep British Airways direct
24 Sep - 28 Sep British Airways direct
19 Sep - 23 Sep British Airways direct
23 Sep - 28 Sep British Airways direct
08 Sep - 11 Sep British Airways direct
09 Sep - 16 Sep British Airways direct
11 Sep - 14 Sep British Airways direct
25 Sep - 02 Oct British Airways direct
25 Sep - 04 Oct British Airways direct

Also check the deals for one-way flights from London to Dublin in September.

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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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