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

Return flights

12 Dec - 13 Dec	Ryanair	direct
08 Dec - 13 Dec	Ryanair	direct
11 Dec - 13 Dec	Ryanair	direct
04 Dec - 13 Dec	Ryanair	direct
04 Dec - 12 Dec	Ryanair	direct
12 Dec - 01 Jan	Ryanair	direct
08 Dec - 14 Dec	Ryanair	direct
12 Dec - 14 Dec	Ryanair	direct
14 Dec - 01 Jan	Ryanair	direct
11 Dec - 14 Dec	Ryanair	direct
04 Dec - 14 Dec	Ryanair	direct
20 Dec - 01 Jan	Ryanair	direct
14 Dec - 18 Dec	Ryanair	direct
22 Dec - 01 Jan	Ryanair	direct

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

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 December from $76

Return flights