Cheapest return flights from Southampton to Dublin in September from $113

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

Return flights

02 Sep - 02 Sep Aer Lingus direct
02 Sep - 10 Sep Aer Lingus direct
05 Sep - 09 Sep Aer Lingus direct
03 Sep - 05 Sep Aer Lingus direct
01 Sep - 02 Sep Aer Lingus direct
05 Sep - 08 Sep Aer Lingus direct
01 Sep - 03 Sep Aer Lingus direct
02 Sep - 09 Sep Aer Lingus direct
08 Sep - 15 Sep Aer Lingus direct
10 Sep - 15 Sep Aer Lingus direct
29 Sep - 03 Oct 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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