Cheapest return flights from Washington to Barcelona in August from $464

Best time to book flights for Washington (IAD) to Barcelona (BCN) flights at AirHint

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

Return flights

18 Aug - 25 Aug Icelandair
20 Aug - 27 Aug United direct
17 Aug - 24 Aug ITA Airways
08 Aug - 25 Aug ITA Airways
14 Aug - 18 Aug ITA Airways
18 Aug - 25 Aug United direct
16 Aug - 30 Aug Air Canada
25 Aug - 31 Aug ITA Airways
08 Aug - 17 Aug Icelandair
08 Aug - 30 Aug ITA Airways

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

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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