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

Return flights

24 Dec - 23 Jan	KLM
24 Dec - 12 Jan	KLM
05 Dec - 16 Jan	KLM
10 Dec - 14 Jan	KLM
25 Dec - 12 Jan	KLM
16 Dec - 12 Jan	Air France
22 Dec - 22 Jan	KLM
22 Dec - 21 Jan	KLM
23 Dec - 22 Jan	KLM
25 Dec - 24 Jan	KLM
13 Dec - 29 Dec	Air India
22 Dec - 29 Dec	Air India
24 Dec - 31 Dec	Air India
23 Dec - 30 Dec	Air India
14 Dec - 30 Dec	Air India
21 Dec - 28 Dec	Air India
20 Dec - 28 Dec	Air India
24 Dec - 30 Dec	KLM
25 Dec - 30 Dec	KLM
17 Dec - 30 Dec	KLM

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 606€

Return flights