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

Return flights

25 Aug - 06 Sep	easyJet	direct
25 Aug - 05 Sep	easyJet	direct
26 Aug - 03 Sep	easyJet	direct
26 Aug - 02 Sep	easyJet	direct
28 Aug - 04 Sep	easyJet	direct
26 Aug - 01 Sep	easyJet
25 Aug - 01 Sep	easyJet
25 Aug - 08 Sep	easyJet
30 Aug - 12 Sep	easyJet	direct
24 Aug - 08 Sep	easyJet	direct
19 Aug - 28 Aug	TAP
20 Aug - 28 Aug	TAP
21 Aug - 28 Aug	TAP
23 Aug - 28 Aug	TAP
25 Aug - 27 Aug	easyJet
25 Aug - 28 Aug	TAP
25 Aug - 31 Aug	easyJet
14 Aug - 28 Aug	TAP
19 Aug - 31 Aug	easyJet
21 Aug - 27 Aug	easyJet

Also check the deals for one-way flights from Geneva to Lisbon 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 Geneva to Lisbon in August from 92€

Return flights