Cheapest return flights from London to Dublin in September from $167

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

Return flights

25 Sep - 28 Sep British Airways direct
03 Sep - 07 Sep British Airways direct
28 Sep - 30 Sep British Airways direct
14 Sep - 21 Sep British Airways direct
25 Sep - 02 Oct British Airways direct
18 Sep - 21 Sep British Airways direct
04 Sep - 11 Sep British Airways direct
24 Sep - 27 Sep British Airways direct
03 Sep - 27 Sep British Airways direct
09 Sep - 20 Sep British Airways direct
10 Sep - 13 Sep British Airways direct

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

Powered by

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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Feel free to contact us with any feedback or request another flight research.