Cheapest return flights from Southampton to Dublin in September from 98€

AirHint found the following cheapest return flights from Southampton (SOU) to Dublin (DUB) in September 2025 (see full year).

Return flights

25 Sep - 30 Sep Aer Lingus direct
30 Sep - 07 Oct Aer Lingus direct
30 Sep - 02 Oct Aer Lingus direct
30 Sep - 01 Oct Aer Lingus direct
26 Sep - 30 Sep Aer Lingus direct
26 Sep - 07 Oct Aer Lingus direct
23 Sep - 05 Oct Aer Lingus direct
24 Sep - 30 Sep Aer Lingus direct
27 Sep - 01 Oct Aer Lingus direct
25 Sep - 28 Sep Aer Lingus direct
29 Sep - 01 Oct easyJet
24 Sep - 03 Oct Aer Lingus direct
19 Sep - 24 Sep Aer Lingus direct
19 Sep - 23 Sep Aer Lingus direct
11 Sep - 15 Oct Aer Lingus direct
24 Sep - 28 Sep Aer Lingus direct
24 Sep - 28 Sep easyJet
20 Sep - 23 Sep Aer Lingus direct
15 Sep - 14 Oct Aer Lingus direct
28 Sep - 30 Sep Aer Lingus

Also check the deals for one-way flights from Southampton 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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