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

Return flights

03 Oct - 13 Oct	easyJet
03 Oct - 14 Oct	Vueling Airlines
03 Oct - 15 Oct	Vueling Airlines
27 Oct - 16 Nov	Air China
28 Oct - 12 Nov	Air China
29 Oct - 05 Nov	Air China
28 Oct - 09 Nov	Air China
29 Oct - 12 Nov	Air China
04 Oct - 11 Oct	easyJet
04 Oct - 21 Oct	easyJet
03 Oct - 17 Oct	Vueling Airlines
03 Oct - 16 Oct	Vueling Airlines
01 Oct - 21 Oct	Shenzhen Airlines
21 Oct - 03 Nov	Air China
14 Oct - 26 Oct	Air China
04 Oct - 23 Oct	Air China
21 Oct - 18 Nov	Air China
30 Oct - 17 Nov	Air China
25 Oct - 06 Nov	Air China
23 Oct - 16 Nov	Air China

Also check the deals for one-way flights from Barcelona to Hanoi 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 Hanoi in October from $605

Return flights