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

Return flights

08 Oct - 21 Oct	Kuwait Airways
13 Oct - 20 Nov	Etihad Airways
28 Oct - 06 Nov	Kuwait Airways
07 Oct - 15 Oct	Kuwait Airways
28 Oct - 04 Nov	Kuwait Airways
04 Oct - 19 Oct	Flynas
12 Oct - 19 Oct	KLM
17 Oct - 19 Oct	Air Arabia
22 Oct - 26 Oct	KLM
23 Oct - 30 Oct	Air France
19 Oct - 25 Oct	KLM
10 Oct - 22 Oct	KLM
18 Oct - 30 Oct	KLM
17 Oct - 01 Nov	KLM
23 Oct - 01 Nov	Air France
28 Oct - 08 Nov	Kuwait Airways
29 Oct - 07 Nov	Etihad Airways
28 Oct - 05 Nov	Etihad Airways
28 Oct - 07 Nov	Etihad Airways
29 Oct - 03 Nov	KLM

Also check the deals for one-way flights from Mumbai to Barcelona 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 Mumbai to Barcelona in October from 371€

Return flights