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

Return flights

27 Aug - 31 Aug	KLM
29 Aug - 15 Sep	Ryanair
27 Aug - 01 Sep	KLM
29 Aug - 02 Sep	Ryanair
29 Aug - 03 Sep	Ryanair
29 Aug - 05 Sep	Ryanair
29 Aug - 01 Sep	Ryanair
29 Aug - 31 Aug	Ryanair
26 Aug - 28 Aug	Ryanair
26 Aug - 07 Sep	Ryanair
30 Aug - 31 Aug	Ryanair
25 Aug - 28 Aug	Ryanair
28 Aug - 01 Sep	Ryanair
26 Aug - 29 Aug	Ryanair
27 Aug - 06 Sep	KLM
19 Aug - 14 Sep	TAP
20 Aug - 27 Aug	TAP
25 Aug - 26 Aug	Ryanair
27 Aug - 31 Aug	easyJet	direct
19 Aug - 26 Aug	TAP

Also check the deals for one-way flights from Porto 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 Porto to Luxemburg in August from 179€

Return flights