AirHint found the following cheapest return flights from Oakland (OAK) to Barcelona (BCN) in July 2026 (see full year).

Return flights

27 Jul - 22 Aug	Alaska Airlines
31 Jul - 22 Aug	Alaska Airlines
21 Jul - 15 Aug	Alaska Airlines
18 Jul - 08 Aug	Alaska Airlines
08 Jul - 01 Aug	Alaska Airlines
03 Jul - 14 Jul	Alaska Airlines
01 Jul - 11 Jul	Alaska Airlines
13 Jul - 08 Aug	Alaska Airlines
28 Jul - 02 Aug	Alaska Airlines
13 Jul - 19 Jul	Alaska Airlines
05 Jul - 25 Jul	Alaska Airlines
25 Jul - 09 Aug	Alaska Airlines

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

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 Oakland to Barcelona in July from $1106

Return flights