AirHint found the following cheapest return flights from Zurich (ZRH) to Porto (OPO) in July 2025 (see full year).

Return flights

31 Jul - 31 Jul	SWISS	direct
30 Jul - 05 Aug	TAP
30 Jul - 31 Jul	TAP
29 Jul - 06 Aug	KLM
29 Jul - 01 Aug	KLM
30 Jul - 19 Aug	TAP
31 Jul - 27 Aug	Eurowings
29 Jul - 08 Aug	Condor
30 Jul - 18 Aug	TAP
30 Jul - 03 Aug	Lufthansa
29 Jul - 05 Aug	Condor
29 Jul - 30 Jul	TAP
29 Jul - 18 Aug	Condor
28 Jul - 30 Jul	KLM
28 Jul - 31 Jul	KLM
28 Jul - 28 Jul	SWISS	direct
29 Jul - 29 Jul	Condor
27 Jul - 29 Jul	Lufthansa
27 Jul - 28 Jul	Lufthansa
28 Jul - 29 Jul	Lufthansa

Also check the deals for one-way flights from Zurich to Porto in July.

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 Zurich to Porto in July from 132€

Return flights