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

Return flights

09 Dec - 12 Dec	SWISS
09 Dec - 16 Dec	SWISS
04 Dec - 09 Dec	British Airways
02 Dec - 10 Dec	SWISS
09 Dec - 13 Dec	SWISS
08 Dec - 15 Dec	SWISS
11 Dec - 16 Dec	Lufthansa
10 Dec - 13 Dec	British Airways
04 Dec - 11 Dec	British Airways
01 Dec - 11 Dec	Etihad Airways
09 Dec - 07 Jan	SWISS
10 Dec - 04 Jan	British Airways
15 Dec - 08 Jan	Eurowings
14 Dec - 01 Jan	British Airways
24 Dec - 14 Jan	Turkish Airlines
07 Dec - 03 Jan	British Airways
11 Dec - 06 Jan	British Airways
23 Dec - 02 Jan	Aegean Airlines
22 Dec - 16 Jan	British Airways
27 Dec - 11 Jan	Eurowings

Also check the deals for one-way flights from London to Muscat in December.

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 December from $440

Return flights