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

Return flights

24 Dec - 09 Jan	Air India
01 Dec - 23 Dec	Air India
07 Dec - 06 Jan	Air India
07 Dec - 05 Jan	Air India
11 Dec - 21 Jan	SWISS
11 Dec - 08 Jan	British Airways
14 Dec - 31 Dec	KLM
08 Dec - 05 Jan	KLM
15 Dec - 05 Jan	Turkish Airlines
13 Dec - 06 Jan	Turkish Airlines
17 Dec - 10 Jan	Virgin Atlantic
17 Dec - 02 Jan	Turkish Airlines
23 Dec - 28 Dec	Turkish Airlines
04 Dec - 25 Dec	British Airways
02 Dec - 08 Dec	Air France
30 Dec - 31 Dec	Turkish Airlines
01 Dec - 28 Dec	Virgin Atlantic
04 Dec - 24 Dec	Emirates
08 Dec - 13 Dec	Turkish Airlines
04 Dec - 18 Dec	Emirates

Also check the deals for one-way flights from Mumbai to Seattle 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 Mumbai to Seattle in December from $781

Return flights