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

Return flights

03 Dec - 25 Dec	SWISS
04 Dec - 24 Dec	SWISS
31 Dec - 23 Jan	SWISS
07 Dec - 27 Jan	SWISS
28 Dec - 14 Jan	SWISS
31 Dec - 30 Jan	SWISS
28 Dec - 22 Jan	SWISS
30 Dec - 14 Jan	SWISS
28 Dec - 24 Jan	SWISS
01 Dec - 27 Dec	SWISS
05 Dec - 15 Jan	SWISS
08 Dec - 15 Jan	SWISS
05 Dec - 25 Dec	SWISS
28 Dec - 17 Jan	SWISS
07 Dec - 30 Dec	SWISS
08 Dec - 31 Dec	Lufthansa
10 Dec - 17 Dec	Lufthansa
03 Dec - 31 Dec	SWISS
05 Dec - 31 Dec	SWISS
10 Dec - 30 Dec	Lufthansa

Also check the deals for one-way flights from Boston to Mumbai 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 Mumbai in December from 615€

Return flights