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

Return flights

28 Aug - 18 Sep	Ryanair	direct
28 Aug - 16 Sep	Ryanair	direct
30 Aug - 18 Sep	Ryanair	direct
26 Aug - 22 Sep	Ryanair
26 Aug - 16 Sep	Ryanair	direct
30 Aug - 16 Sep	Ryanair
21 Aug - 11 Sep	Ryanair
30 Aug - 16 Sep	Ryanair	direct
30 Aug - 20 Sep	Ryanair	direct
23 Aug - 13 Sep	Ryanair
22 Aug - 26 Aug	KLM
18 Aug - 26 Aug	KLM
20 Aug - 26 Aug	KLM
21 Aug - 25 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
20 Aug - 27 Aug	KLM
21 Aug - 27 Aug	Ryanair
26 Aug - 27 Aug	Ryanair
26 Aug - 27 Aug	easyJet	direct
26 Aug - 29 Aug	Ryanair

Also check the deals for one-way flights from Luxemburg to Lisbon 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 Luxemburg to Lisbon in August from 96€

Return flights