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

Return flights

11 Sep - 19 Sep	Eurowings
13 Sep - 22 Sep	Eurowings
25 Sep - 29 Sep	SWISS
20 Sep - 26 Sep	Eurowings
22 Sep - 07 Oct	Eurowings
23 Sep - 01 Oct	SWISS
16 Sep - 26 Sep	Eurowings
15 Sep - 22 Sep	Eurowings
16 Sep - 22 Sep	Eurowings
17 Sep - 27 Sep	Eurowings
17 Sep - 23 Sep	Eurowings
28 Sep - 08 Oct	British Airways
22 Sep - 28 Sep	Eurowings
25 Sep - 08 Oct	Eurowings
25 Sep - 14 Oct	Eurowings
19 Sep - 05 Oct	Scandinavian Airlines
26 Sep - 02 Oct	British Airways
26 Sep - 03 Oct	British Airways
26 Sep - 04 Oct	British Airways
01 Sep - 02 Oct	Aegean Airlines

Also check the deals for one-way flights from London to Muscat 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 London to Muscat in September from $445

Return flights