AirHint found the following cheapest return flights from Washington (DCA) to Barcelona (BCN) in July 2025 (see full year).

Return flights

20 Jul - 24 Aug	British Airways
08 Jul - 23 Aug	Air Canada
15 Jul - 22 Jul	jetBlue
16 Jul - 23 Jul	jetBlue
14 Jul - 21 Jul	jetBlue
26 Jul - 24 Aug	British Airways
01 Jul - 09 Jul	jetBlue
08 Jul - 15 Jul	jetBlue
09 Jul - 18 Jul	jetBlue
09 Jul - 16 Jul	jetBlue
29 Jul - 05 Aug	jetBlue
30 Jul - 06 Aug	jetBlue
02 Jul - 09 Jul	jetBlue
08 Jul - 23 Jul	jetBlue
18 Jul - 25 Jul	jetBlue
28 Jul - 04 Aug	jetBlue
21 Jul - 12 Aug	Air Canada
30 Jul - 05 Aug	Delta
31 Jul - 05 Aug	Air France
28 Jul - 03 Aug	Air Canada

Also check the deals for one-way flights from Washington 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 Washington to Barcelona in July from $563

Return flights