Cheapest return flights from San Francisco to Lisbon in December from $559

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 December 2025 (see full year).

Return flights

03 Dec - 10 Dec TAP direct
08 Dec - 13 Dec TAP direct
28 Dec - 08 Jan SWISS
04 Dec - 11 Dec United
26 Dec - 07 Jan British Airways
14 Dec - 27 Dec Air Canada
26 Dec - 07 Jan TAP direct
14 Dec - 21 Dec United
26 Dec - 05 Jan British Airways
10 Dec - 03 Jan SWISS
10 Dec - 03 Jan TAP direct
22 Dec - 02 Jan Lufthansa
26 Dec - 05 Jan TAP direct
19 Dec - 27 Dec Air Canada
19 Dec - 27 Dec TAP direct
28 Dec - 04 Jan British Airways
19 Dec - 02 Jan TAP direct

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

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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