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

Return flights

15 Oct - 23 Oct	Air Canada
07 Oct - 16 Oct	Air Canada
20 Oct - 27 Oct	SWISS
08 Oct - 16 Oct	Aer Lingus
21 Oct - 04 Nov	United
27 Oct - 04 Nov	Air Canada
10 Oct - 15 Oct	Air Canada
22 Oct - 28 Oct	SWISS
15 Oct - 27 Oct	SWISS
15 Oct - 30 Oct	SWISS
27 Oct - 10 Nov	SWISS
05 Oct - 12 Oct	Air Canada
19 Oct - 26 Oct	Air Canada
25 Oct - 07 Nov	SWISS
30 Oct - 13 Nov	SWISS
24 Oct - 02 Nov	Scandinavian Airlines
31 Oct - 08 Nov	Scandinavian Airlines
31 Oct - 09 Nov	TAP

Also check the deals for one-way flights from Newark 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 Newark to Barcelona in October from 297€

Return flights