Cheapest return flights from San Francisco to Lisbon in August from 533€

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

Return flights

13 Aug - 20 Aug Air Canada
20 Aug - 15 Sep SWISS
14 Aug - 20 Sep Iberia For Level
20 Aug - 28 Aug Air Canada
20 Aug - 27 Aug United
20 Aug - 01 Sep SWISS
04 Aug - 25 Aug Lufthansa
11 Aug - 21 Aug SWISS
14 Aug - 27 Aug Air Canada
13 Aug - 21 Aug Air France
04 Aug - 18 Aug Air France
18 Aug - 30 Aug United
15 Aug - 29 Aug United
21 Aug - 01 Sep Iberia
25 Aug - 01 Sep Lufthansa
31 Aug - 13 Sep Air Canada
30 Aug - 04 Sep Frontier Airlines
28 Aug - 08 Sep Frontier Airlines
30 Aug - 06 Sep Hawaiian Airlines
26 Aug - 02 Sep United

Also check the deals for one-way flights from San Francisco to Lisbon in August.

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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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