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

Return flights

27 Aug - 18 Sep	Ryanair	direct
28 Aug - 18 Sep	Ryanair	direct
29 Aug - 18 Sep	Ryanair	direct
30 Aug - 18 Sep	Ryanair	direct
28 Aug - 17 Sep	Ryanair	direct
29 Aug - 17 Sep	Ryanair	direct
27 Aug - 17 Sep	Ryanair	direct
31 Aug - 18 Sep	Ryanair	direct
30 Aug - 17 Sep	Ryanair	direct
28 Aug - 11 Sep	Ryanair	direct
27 Aug - 30 Aug	Ryanair
25 Aug - 30 Aug	easyJet
28 Aug - 31 Aug	Ryanair
24 Aug - 31 Aug	Ryanair
26 Aug - 31 Aug	Ryanair
24 Aug - 26 Aug	Ryanair
22 Aug - 30 Aug	TAP
30 Aug - 30 Aug	Ryanair
27 Aug - 31 Aug	Ryanair
05 Aug - 07 Aug	KLM

Also check the deals for one-way flights from Luxemburg to Porto 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 Porto in August from 72€

Return flights