Cheapest return flights from London to Dublin in September from $191

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

Return flights

11 Sep - 14 Sep British Airways direct
07 Sep - 10 Sep British Airways direct
04 Sep - 07 Sep British Airways direct
04 Sep - 08 Sep British Airways direct
04 Sep - 18 Sep British Airways direct
11 Sep - 28 Sep British Airways direct
11 Sep - 18 Sep British Airways direct
03 Sep - 07 Sep British Airways direct
02 Sep - 09 Sep British Airways direct
10 Sep - 22 Oct British Airways direct
07 Sep - 14 Sep British Airways direct
21 Sep - 16 Oct British Airways direct
20 Sep - 04 Oct British Airways direct
01 Sep - 01 Oct Aer Lingus 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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