Cheapest one-way flights from San Francisco to Lisbon in December from $309

AirHint found the following cheapest one-way flights from San Francisco (SFO) to Lisbon (LIS) in December 2025 (see full year).

One-Way flights

09 Dec Flair Airlines
04 Dec WestJet
13 Dec Frontier Airlines
02 Dec WestJet
10 Dec Hawaiian Airlines
03 Dec Frontier Airlines
05 Dec WestJet
01 Dec Iberia
14 Dec Aer Lingus
25 Dec Scandinavian Airlines

Also check the deals for return flights from San Francisco to Lisbon in December.

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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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