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

Return flights

07 Oct - 14 Oct	Turkish Airlines
08 Oct - 15 Oct	Turkish Airlines
22 Oct - 29 Oct	Turkish Airlines
23 Oct - 30 Oct	Turkish Airlines
29 Oct - 05 Nov	Turkish Airlines
30 Oct - 06 Nov	Turkish Airlines
08 Oct - 05 Nov	Turkish Airlines
06 Oct - 13 Oct	Turkish Airlines
20 Oct - 27 Oct	Turkish Airlines
27 Oct - 03 Nov	Turkish Airlines
01 Oct - 16 Oct	Delta
01 Oct - 14 Oct	Delta
01 Oct - 08 Oct	Delta
02 Oct - 09 Oct	Delta
24 Oct - 10 Nov	KLM
29 Oct - 12 Nov	KLM
28 Oct - 04 Nov	Air France
31 Oct - 07 Nov	Delta
13 Oct - 05 Nov	Delta
18 Oct - 18 Nov	KLM

Also check the deals for one-way flights from Seattle to Mumbai in October.

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 Seattle to Mumbai in October from $674

Return flights