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

Return flights

08 Oct - 12 Oct	transavia	direct
01 Oct - 04 Oct	transavia	direct
09 Oct - 12 Oct	transavia	direct
06 Oct - 22 Oct	transavia
02 Oct - 09 Oct	transavia	direct
02 Oct - 05 Oct	transavia	direct
30 Oct - 03 Nov	transavia	direct
13 Oct - 20 Oct	transavia	direct
01 Oct - 05 Oct	transavia	direct
04 Oct - 08 Oct	transavia	direct
12 Oct - 14 Oct	transavia	direct
27 Oct - 07 Nov	transavia	direct
30 Oct - 02 Nov	transavia	direct
29 Oct - 02 Nov	transavia	direct

Also check the deals for one-way flights from Rotterdam 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 Rotterdam to Barcelona in October from 125€

Return flights