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

Return flights

21 Aug - 21 Aug	SWISS	direct
01 Aug - 01 Aug	SWISS	direct
16 Aug - 16 Aug	Lufthansa
10 Aug - 10 Aug	Lufthansa
20 Aug - 27 Aug	easyJet	direct
28 Aug - 07 Sep	easyJet	direct
27 Aug - 31 Aug	easyJet	direct
28 Aug - 01 Sep	TAP	direct
29 Aug - 05 Sep	easyJet	direct
29 Aug - 02 Sep	TAP
21 Aug - 26 Aug	easyJet	direct
11 Aug - 14 Aug	Vueling Airlines
27 Aug - 30 Aug	easyJet
27 Aug - 29 Aug	easyJet	direct
26 Aug - 15 Sep	Vueling Airlines
26 Aug - 16 Sep	Vueling Airlines
29 Aug - 15 Sep	TAP
29 Aug - 09 Sep	TAP
27 Aug - 15 Sep	Vueling Airlines
29 Aug - 15 Sep	easyJet	direct

Also check the deals for one-way flights from Lisbon to Zurich 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 Lisbon to Zurich in August from $156

Return flights