AirHint found the following cheapest return flights from Southampton (SOU) to Dublin (DUB) in July 2026 (see full year).

Return flights

23 Jul - 30 Jul	KLM
06 Jul - 09 Jul	KLM
23 Jul - 30 Jul	Aer Lingus	direct
11 Jul - 14 Jul	Aer Lingus	direct
25 Jul - 01 Aug	Aer Lingus	direct
08 Jul - 12 Jul	Loganair
18 Jul - 20 Jul	KLM
27 Jul - 30 Jul	Loganair
18 Jul - 20 Jul	Aer Lingus	direct
03 Jul - 04 Jul	Aer Lingus	direct
05 Jul - 08 Jul	Aer Lingus	direct

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

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

Cheapest return flights from Southampton to Dublin in July from $211

Return flights