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

Return flights

30 Jun - 15 Jul	SWISS
30 Jun - 07 Jul	Air Canada
30 Jun - 08 Jul	SWISS
29 Jun - 09 Jul	Delta
29 Jun - 10 Jul	Delta
19 Jun - 26 Jun	Air Canada
29 Jun - 07 Jul	Air Canada
23 Jun - 30 Jun	SWISS
21 Jun - 25 Jun	FrenchBee
29 Jun - 11 Jul	Delta
28 Jun - 01 Jul	FrenchBee
19 Jun - 23 Jun	FrenchBee
24 Jun - 07 Jul	FrenchBee
19 Jun - 22 Jun	FrenchBee
16 Jun - 23 Jun	Flair Airlines
18 Jun - 25 Jun	Air Transat
24 Jun - 22 Jul	FrenchBee
26 Jun - 29 Jun	FrenchBee
19 Jun - 21 Jun	FrenchBee
16 Jun - 27 Jun	Flair Airlines

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

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 San Francisco to Lisbon in June from $806

Return flights