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

Return flights

29 Jul - 01 Aug	Ryanair
29 Jul - 02 Aug	Ryanair
29 Jul - 06 Aug	Ryanair
28 Jul - 31 Jul	Ryanair
29 Jul - 09 Aug	Ryanair
29 Jul - 12 Aug	Ryanair
28 Jul - 29 Jul	TAP
28 Jul - 02 Aug	TAP
28 Jul - 01 Aug	TAP
28 Jul - 06 Aug	TAP
29 Jul - 07 Aug	Vueling Airlines
27 Jul - 31 Jul	Ryanair
28 Jul - 05 Aug	TAP
24 Jul - 30 Jul	Ryanair
23 Jul - 26 Jul	Aer Lingus
22 Jul - 30 Jul	Vueling Airlines
31 Jul - 31 Jul	Ryanair
24 Jul - 27 Jul	Ryanair
25 Jul - 31 Jul	Ryanair
29 Jul - 29 Jul	Ryanair

Also check the deals for one-way flights from Dublin to Lisbon 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 Lisbon

Cheap car rent in Lisbon

Cheapest return flights from Dublin to Lisbon in July from 226€

Return flights