AirHint found the following cheapest return flights from Bangalore (BLR) to San Francisco (SFO) in December 2025 (see full year).

Return flights

17 Dec - 18 Jan	KLM
24 Dec - 13 Jan	KLM
24 Dec - 10 Jan	KLM
25 Dec - 12 Jan	KLM
18 Dec - 07 Jan	Air France
18 Dec - 08 Jan	Air France
13 Dec - 10 Jan	Air France
16 Dec - 07 Jan	Air France
23 Dec - 07 Jan	KLM
24 Dec - 30 Dec	KLM
12 Dec - 06 Jan	KLM
16 Dec - 30 Dec	Air France
18 Dec - 30 Dec	Air France
15 Dec - 30 Dec	Air France
18 Dec - 31 Dec	Delta
23 Dec - 30 Dec	Delta
17 Dec - 30 Dec	Delta
17 Dec - 31 Dec	Delta
24 Dec - 31 Dec	KLM
22 Dec - 29 Dec	Air India

Also check the deals for one-way flights from Bangalore to San Francisco 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 Bangalore to San Francisco in December from $767

Return flights