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

Return flights

23 Sep - 28 Sep	SalamAir
22 Sep - 30 Sep	Oman Air
25 Sep - 02 Oct	Oman Air
26 Sep - 30 Sep	IndiGo
26 Sep - 03 Oct	IndiGo
30 Sep - 06 Oct	SalamAir
23 Sep - 30 Sep	Oman Air
16 Sep - 25 Sep	Etihad Airways
29 Sep - 03 Oct	Flynas
19 Sep - 02 Oct	British Airways
26 Sep - 11 Oct	IndiGo
20 Sep - 27 Sep	British Airways
24 Sep - 30 Sep	Etihad Airways
22 Sep - 29 Sep	Oman Air
15 Sep - 18 Sep	IndiGo
21 Sep - 30 Sep	Etihad Airways
24 Sep - 01 Oct	Air India
26 Sep - 12 Oct	IndiGo
20 Sep - 01 Oct	Etihad Airways
27 Sep - 08 Oct	Etihad Airways

Also check the deals for one-way flights from Delhi to Barcelona in September.

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 September from 459€

Return flights