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

Return flights

19 Aug - 26 Aug	jetBlue
11 Aug - 18 Aug	Condor
18 Aug - 25 Aug	Condor
21 Aug - 31 Aug	jetBlue
30 Aug - 21 Sep	Condor
24 Aug - 31 Aug	Condor
30 Aug - 06 Sep	Condor
31 Aug - 07 Sep	Condor
06 Aug - 13 Aug	Condor
20 Aug - 27 Aug	Condor
17 Aug - 24 Aug	Iberia
29 Aug - 12 Sep	Condor
05 Aug - 12 Aug	Condor
23 Aug - 30 Aug	Scandinavian Airlines
26 Aug - 08 Sep	TAP
21 Aug - 01 Sep	British Airways

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

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 August from $703

Return flights