Cheapest return flights from Southampton to Dublin in September from 163€

Best time to book flights for Southampton (SOU) to Dublin (DUB) flights at AirHint

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

Return flights

04 Sep - 11 Sep Aer Lingus direct
18 Sep - 21 Sep Aer Lingus direct
06 Sep - 13 Sep Aer Lingus direct
03 Sep - 10 Sep KLM
19 Sep - 21 Sep KLM
19 Sep - 21 Sep Aer Lingus direct
05 Sep - 12 Sep KLM
05 Sep - 12 Sep Aer Lingus direct
03 Sep - 10 Sep Aer Lingus direct

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

Skyscanner

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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