Cheapest return flights from Washington to Barcelona in August from $521

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

Return flights

26 Aug - 08 Sep TAP
23 Aug - 30 Aug Scandinavian Airlines
25 Aug - 01 Sep TAP
29 Aug - 08 Sep TAP
28 Aug - 04 Sep TAP
28 Aug - 01 Sep TAP
27 Aug - 03 Sep TAP
12 Aug - 23 Aug TAP
28 Aug - 12 Sep TAP
03 Aug - 14 Aug TAP
09 Aug - 16 Aug TAP
06 Aug - 16 Aug TAP
07 Aug - 16 Aug ITA Airways

Also check the deals for one-way flights from Washington to Barcelona in August.

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