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

Return flights

08 Dec - 15 Dec	British Airways
31 Dec - 21 Jan	Eurowings
06 Dec - 16 Dec	British Airways
09 Dec - 27 Dec	Aer Lingus
08 Dec - 16 Dec	Aegean Airlines
09 Dec - 15 Dec	Aer Lingus
07 Dec - 11 Dec	Gulf Air
07 Dec - 17 Dec	Gulf Air
06 Dec - 09 Dec	British Airways
06 Dec - 14 Dec	British Airways
12 Dec - 19 Jan	Aer Lingus
10 Dec - 15 Dec	SWISS
30 Dec - 23 Jan	Turkish Airlines
31 Dec - 11 Jan	Eurowings
31 Dec - 22 Jan	Gulf Air
07 Dec - 14 Jan	KM Malta Airlines
15 Dec - 19 Jan	TAP
12 Dec - 16 Jan	Aer Lingus
09 Dec - 20 Jan	Aer Lingus
14 Dec - 17 Jan	Vueling Airlines

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 427€

Return flights