Cheapest return flights from Oakland to Lisbon in December from $1000

AirHint found the following cheapest return flights from Oakland (OAK) to Lisbon (LIS) in December 2025 (see full year).

Return flights

24 Dec - 17 Jan Alaska Airlines
19 Dec - 08 Jan Alaska Airlines

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

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