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

Return flights

16 Dec - 28 Dec	Delta
16 Dec - 26 Dec	Delta
15 Dec - 29 Dec	Delta
18 Dec - 25 Dec	Delta
17 Dec - 31 Dec	Delta
17 Dec - 27 Dec	Virgin Atlantic
12 Dec - 20 Dec	Delta
11 Dec - 20 Dec	Delta
21 Dec - 05 Jan	Hawaiian Airlines
19 Dec - 27 Dec	Alaska Airlines
18 Dec - 27 Dec	Delta
19 Dec - 05 Jan	Hawaiian Airlines
20 Dec - 05 Jan	Hawaiian Airlines
19 Dec - 04 Jan	Virgin Atlantic
15 Dec - 03 Jan	Alaska Airlines
22 Dec - 01 Jan	Alaska Airlines

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

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 Oakland to London in December from 969€

Return flights