AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Barcelona (BCN) in August 2025 (see full year).

Return flights

04 Aug - 20 Aug	Air Canada
12 Aug - 19 Aug	United
22 Aug - 04 Sep	Air Canada
21 Aug - 28 Aug	United
15 Aug - 22 Aug	United
31 Aug - 07 Sep	Air Canada
18 Aug - 25 Aug	United
24 Aug - 31 Aug	United
27 Aug - 07 Sep	Frontier Airlines
28 Aug - 07 Sep	Spirit Airlines
30 Aug - 07 Sep	Spirit Airlines
27 Aug - 03 Sep	United
27 Aug - 01 Sep	Icelandair
06 Aug - 13 Aug	United
04 Aug - 11 Aug	United
30 Aug - 06 Sep	United
02 Aug - 09 Aug	United
09 Aug - 16 Aug	United

Also check the deals for one-way flights from Raleigh-durham 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 Raleigh-durham to Barcelona in August from $546

Return flights