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

Return flights

27 Aug - 05 Sep	British Airways
31 Aug - 11 Sep	Air India Express
31 Aug - 13 Sep	Air India Express
31 Aug - 04 Sep	Air India Express
31 Aug - 12 Sep	Air India Express
31 Aug - 07 Sep	IndiGo
28 Aug - 10 Sep	Air Arabia
28 Aug - 12 Sep	Air Arabia
27 Aug - 14 Sep	Turkish Airlines
30 Aug - 20 Sep	IndiGo
26 Aug - 30 Aug	Air India

Also check the deals for one-way flights from Delhi 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 Delhi to Barcelona in August from $712

Return flights