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

Return flights

11 Aug - 27 Aug	United
13 Aug - 20 Aug	United
15 Aug - 22 Aug	United
18 Aug - 25 Aug	United
24 Aug - 31 Aug	United
21 Aug - 28 Aug	United
07 Aug - 11 Aug	Spirit Airlines
05 Aug - 12 Aug	United
07 Aug - 14 Aug	United
11 Aug - 18 Aug	United
27 Aug - 03 Sep	United
30 Aug - 06 Sep	United

Also check the deals for one-way flights from Indianapolis 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 Indianapolis to Barcelona in August from $625

Return flights