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

Return flights

01 Sep - 10 Sep	SWISS
11 Sep - 19 Sep	KLM
16 Sep - 01 Oct	SWISS
08 Sep - 12 Sep	KLM
18 Sep - 24 Sep	Lufthansa
24 Sep - 30 Sep	British Airways
22 Sep - 29 Sep	SWISS
10 Sep - 17 Sep	British Airways
01 Sep - 08 Sep	SWISS
17 Sep - 21 Sep	ITA Airways
25 Sep - 29 Sep	Lufthansa
26 Sep - 05 Oct	SWISS
29 Sep - 08 Oct	SWISS
29 Sep - 06 Oct	SWISS
24 Sep - 07 Oct	Lufthansa
24 Sep - 01 Oct	KLM
19 Sep - 05 Oct	Lufthansa
30 Sep - 05 Oct	Lufthansa
27 Sep - 03 Oct	British Airways
25 Sep - 22 Oct	Lufthansa

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 502€

Return flights