Cheapest return flights from San Francisco to Lisbon in August from $805

Best time to book flights for San Francisco (SFO) to Lisbon (LIS) flights at AirHint

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

Return flights

06 Aug - 13 Aug British Airways
05 Aug - 12 Aug British Airways
22 Aug - 01 Sep Scandinavian Airlines
07 Aug - 14 Aug British Airways
08 Aug - 15 Aug Air Canada
04 Aug - 11 Aug British Airways
03 Aug - 10 Aug Delta
02 Aug - 09 Aug Delta
06 Aug - 13 Aug TAP direct
04 Aug - 11 Aug TAP direct
07 Aug - 14 Aug TAP direct

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

Skyscanner

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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