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

Return flights

21 Oct - 12 Nov	Etihad Airways
02 Oct - 28 Oct	Vueling Airlines
09 Oct - 04 Nov	Etihad Airways
28 Oct - 04 Nov	Air France
29 Oct - 04 Nov	Air France
29 Oct - 05 Nov	Air France
27 Oct - 09 Nov	Air France
27 Oct - 10 Nov	Air France
14 Oct - 29 Oct	Vueling Airlines
14 Oct - 21 Oct	Vueling Airlines
14 Oct - 30 Oct	Saudia
22 Oct - 29 Oct	Etihad Airways
28 Oct - 03 Nov	Etihad Airways
02 Oct - 21 Oct	Etihad Airways
28 Oct - 20 Nov	Etihad Airways
23 Oct - 05 Nov	Etihad Airways
23 Oct - 29 Oct	Air China
09 Oct - 16 Oct	Saudia
07 Oct - 27 Oct	Vueling Airlines
01 Oct - 30 Oct	Wizz Air

Also check the deals for one-way flights from Barcelona to Singapore 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 Barcelona to Singapore in October from 515€

Return flights