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

Return flights

27 Jul - 15 Aug	Ryanair
29 Jul - 17 Aug	Ryanair	direct
29 Jul - 10 Aug	Ryanair	direct
27 Jul - 10 Aug	Ryanair	direct
25 Jul - 10 Aug	Ryanair	direct
29 Jul - 15 Aug	Ryanair	direct
27 Jul - 15 Aug	Ryanair	direct
25 Jul - 27 Jul	Ryanair	direct
25 Jul - 01 Aug	Ryanair
29 Jul - 31 Jul	Ryanair
29 Jul - 01 Aug	Ryanair
29 Jul - 12 Aug	Ryanair	direct
27 Jul - 30 Jul	Ryanair
25 Jul - 30 Jul	Ryanair
25 Jul - 25 Jul	Ryanair
22 Jul - 27 Jul	Ryanair
24 Jul - 31 Jul	SWISS
25 Jul - 29 Jul	Lufthansa
23 Jul - 29 Jul	Lufthansa
29 Jul - 29 Jul	Ryanair

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

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Cheapest return flights from Dublin to Luxemburg in July from 125€

Return flights