AirHint found the following cheapest return flights from Madrid (MAD) to Luxemburg (LUX) in August 2025 (see full year).

Return flights

29 Aug - 18 Sep	Ryanair	direct
29 Aug - 15 Sep	Ryanair	direct
29 Aug - 16 Sep	Ryanair	direct
29 Aug - 04 Sep	Ryanair	direct
29 Aug - 09 Sep	Ryanair	direct
28 Aug - 15 Sep	Ryanair	direct
28 Aug - 16 Sep	Ryanair	direct
28 Aug - 04 Sep	Ryanair	direct
29 Aug - 01 Sep	Ryanair	direct
29 Aug - 05 Sep	Ryanair	direct
21 Aug - 24 Aug	KLM
21 Aug - 26 Aug	KLM
21 Aug - 25 Aug	KLM
19 Aug - 21 Aug	Iberia
19 Aug - 26 Aug	Iberia
20 Aug - 24 Aug	Lufthansa
20 Aug - 23 Aug	Lufthansa
18 Aug - 25 Aug	TAP
19 Aug - 22 Aug	Iberia
23 Aug - 25 Aug	Lufthansa

Also check the deals for one-way flights from Madrid to Luxemburg in August.

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 Madrid to Luxemburg in August from 147€

Return flights