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

Return flights

31 Dec - 27 Jan	Lufthansa
30 Dec - 27 Jan	Lufthansa
30 Dec - 26 Jan	Lufthansa
30 Dec - 28 Jan	Lufthansa
31 Dec - 26 Jan	Lufthansa
30 Dec - 29 Jan	Lufthansa
30 Dec - 30 Jan	Lufthansa
29 Dec - 20 Jan	Lufthansa
28 Dec - 24 Jan	Lufthansa
28 Dec - 30 Jan	Lufthansa
07 Dec - 25 Dec	Lufthansa
07 Dec - 24 Dec	Lufthansa
08 Dec - 25 Dec	SWISS
08 Dec - 24 Dec	SWISS
09 Dec - 25 Dec	Lufthansa
09 Dec - 16 Dec	Lufthansa
11 Dec - 26 Dec	Lufthansa
14 Dec - 23 Dec	Aer Lingus
13 Dec - 23 Dec	Aer Lingus
13 Dec - 22 Dec	Air India

Also check the deals for one-way flights from Boston to Bangalore 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 Boston to Bangalore in December from $727

Return flights