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

Return flights

22 Jul - 30 Jul	TAP
29 Jul - 17 Aug	TAP
27 Jul - 12 Aug	TAP
29 Jul - 12 Aug	TAP
22 Jul - 02 Aug	TAP
22 Jul - 09 Aug	TAP
31 Jul - 11 Aug	TAP
30 Jul - 11 Aug	TAP
13 Jul - 24 Jul	TAP
06 Jul - 27 Jul	TAP
09 Jul - 19 Jul	TAP
21 Jul - 10 Aug	TAP
03 Jul - 10 Jul	TAP
01 Jul - 13 Jul	TAP
04 Jul - 15 Jul	TAP
31 Jul - 08 Aug	TAP
05 Jul - 11 Jul	TAP
01 Jul - 05 Jul	TAP
21 Jul - 02 Aug	TAP
03 Jul - 05 Jul	TAP

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 $586

Return flights