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

Return flights

02 Jul - 06 Jul	SWISS	direct
02 Jul - 13 Jul	SWISS	direct
03 Jul - 06 Jul	SWISS	direct
01 Jul - 22 Jul	SWISS
01 Jul - 05 Jul	SWISS	direct
02 Jul - 05 Jul	SWISS	direct
01 Jul - 09 Jul	Condor
01 Jul - 08 Jul	SWISS	direct
01 Jul - 07 Jul	SWISS	direct
02 Jul - 08 Jul	SWISS	direct
30 Jul - 04 Aug	Vueling Airlines
21 Jul - 04 Aug	easyJet
03 Jul - 05 Aug	SWISS
21 Jul - 11 Aug	easyJet
21 Jul - 05 Aug	easyJet
30 Jul - 06 Aug	Vueling Airlines
28 Jul - 06 Aug	easyJet
30 Jul - 13 Aug	Vueling Airlines
31 Jul - 04 Aug	Vueling Airlines
07 Jul - 04 Aug	easyJet

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 $161

Return flights