Cheapest return flights from Oakland to Barcelona in October from 426€

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

Return flights

06 Oct - 22 Oct Delta
24 Oct - 11 Nov Delta
08 Oct - 17 Oct Alaska Airlines
13 Oct - 08 Nov Alaska Airlines
06 Oct - 28 Oct Alaska Airlines
16 Oct - 08 Nov Hawaiian Airlines
06 Oct - 21 Oct Alaska Airlines
03 Oct - 21 Oct Alaska Airlines

Also check the deals for one-way flights from Oakland to Barcelona in October.

Skyscanner

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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