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

Return flights

17 Sep - 22 Sep	Pegasus Airlines
19 Sep - 24 Sep	Pegasus Airlines
19 Sep - 25 Sep	Pegasus Airlines
19 Sep - 02 Oct	Pegasus Airlines
18 Sep - 25 Sep	Oman Air
24 Sep - 27 Sep	Pegasus Airlines
29 Sep - 12 Oct	Pegasus Airlines
15 Sep - 23 Sep	Pegasus Airlines
05 Sep - 10 Sep	Pegasus Airlines
05 Sep - 15 Sep	Pegasus Airlines
05 Sep - 13 Sep	Pegasus Airlines
17 Sep - 27 Sep	SalamAir

Also check the deals for one-way flights from Muscat to London 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 London in September from $316

Return flights