AirHint found the following cheapest return flights from Lisbon (LIS) to Mumbai (BOM) in September 2025 (see full year).

Return flights

17 Sep - 01 Oct	Qatar Airways
24 Sep - 29 Oct	SWISS
26 Sep - 29 Oct	SWISS
26 Sep - 30 Oct	SWISS
25 Sep - 30 Oct	SWISS
24 Sep - 30 Oct	SWISS
30 Sep - 23 Oct	SWISS
30 Sep - 31 Oct	SWISS
01 Sep - 17 Sep	Qatar Airways
15 Sep - 19 Sep	Qatar Airways
05 Sep - 26 Sep	Qatar Airways
18 Sep - 27 Sep	Emirates
05 Sep - 20 Sep	Qatar Airways
01 Sep - 12 Sep	Qatar Airways

Also check the deals for one-way flights from Lisbon to Mumbai in September.

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 Lisbon to Mumbai in September from $602

Return flights