Cheapest return flights from Lisbon to Dublin in September from $110

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

Return flights

26 Sep - 30 Sep Ryanair direct
26 Sep - 04 Oct Ryanair direct
26 Sep - 29 Sep Ryanair direct
26 Sep - 27 Sep Ryanair direct
26 Sep - 28 Sep Ryanair direct
27 Sep - 27 Sep Ryanair direct
27 Sep - 30 Sep Ryanair direct
30 Sep - 07 Oct Aer Lingus direct
30 Sep - 04 Oct Aer Lingus direct
17 Sep - 29 Sep Aer Lingus direct
27 Sep - 29 Sep Ryanair direct
19 Sep - 28 Sep Aer Lingus direct
27 Sep - 28 Sep Ryanair direct
26 Sep - 01 Oct Ryanair direct
30 Sep - 02 Oct Aer Lingus direct
30 Sep - 01 Oct Aer Lingus direct
17 Sep - 01 Oct Aer Lingus direct
30 Sep - 08 Oct Aer Lingus
30 Sep - 08 Oct Aer Lingus direct
26 Sep - 03 Oct Ryanair direct

Also check the deals for one-way flights from Lisbon 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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