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

Return flights

22 Sep - 29 Sep	Etihad Airways
29 Sep - 06 Oct	Pegasus Airlines
22 Sep - 09 Oct	Etihad Airways
29 Sep - 04 Oct	Pegasus Airlines
23 Sep - 28 Sep	Etihad Airways
25 Sep - 29 Sep	Etihad Airways
28 Sep - 04 Oct	Air Arabia
24 Sep - 04 Oct	Pegasus Airlines
20 Sep - 27 Sep	Etihad Airways
19 Sep - 22 Sep	Etihad Airways

Also check the deals for one-way flights from Muscat 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 Muscat to Barcelona in September from $389

Return flights