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

Return flights

08 Dec - 14 Dec	Scandinavian Airlines
03 Dec - 08 Dec	British Airways
04 Dec - 11 Dec	British Airways
07 Dec - 11 Dec	British Airways
04 Dec - 10 Dec	Turkish Airlines
02 Dec - 12 Dec	Turkish Airlines
09 Dec - 15 Dec	Turkish Airlines
08 Dec - 19 Dec	Turkish Airlines
01 Dec - 10 Dec	Etihad Airways
01 Dec - 07 Dec	British Airways
29 Dec - 25 Jan	Etihad Airways
26 Dec - 01 Jan	British Airways
23 Dec - 04 Jan	LOT
23 Dec - 05 Jan	LOT
24 Dec - 09 Jan	Saudia
29 Dec - 10 Jan	Saudia
12 Dec - 02 Jan	Saudia
29 Dec - 02 Jan	Saudia
24 Dec - 10 Jan	Saudia
25 Dec - 01 Jan	Saudia

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 369€

Return flights