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

Return flights

17 Sep - 30 Sep	Etihad Airways
01 Sep - 30 Sep	Etihad Airways
10 Sep - 24 Sep	KLM
03 Sep - 24 Sep	KLM
08 Sep - 28 Sep	KLM
19 Sep - 25 Sep	KLM
02 Sep - 17 Sep	KLM
05 Sep - 28 Sep	KLM
01 Sep - 28 Sep	KLM
08 Sep - 16 Sep	KLM
06 Sep - 07 Oct	KLM
12 Sep - 05 Oct	KLM
18 Sep - 28 Oct	KLM
09 Sep - 09 Oct	KLM
09 Sep - 07 Oct	KLM
08 Sep - 09 Oct	KLM
16 Sep - 07 Oct	KLM
09 Sep - 03 Oct	KLM
30 Sep - 19 Oct	KLM
16 Sep - 28 Oct	KLM

Also check the deals for one-way flights from Dublin 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 Dublin to Mumbai in September from $504

Return flights