AirHint found the following cheapest return flights from London (LCY) to Riga (RIX) in December 2025 (see full year).

Return flights

31 Dec - 09 Jan	KLM
31 Dec - 25 Jan	KLM
27 Dec - 08 Jan	ITA Airways
30 Dec - 07 Jan	LOT
31 Dec - 01 Jan	KLM
31 Dec - 07 Jan	KLM
27 Dec - 05 Jan	ITA Airways
08 Dec - 11 Dec	Lufthansa
30 Dec - 15 Jan	LOT
26 Dec - 05 Jan	ITA Airways
28 Dec - 07 Jan	ITA Airways
08 Dec - 10 Dec	Lufthansa
27 Dec - 31 Dec	KLM
07 Dec - 11 Dec	SWISS
09 Dec - 16 Dec	Lufthansa
26 Dec - 29 Dec	KLM
10 Dec - 17 Dec	SWISS
16 Dec - 19 Dec	LOT
07 Dec - 10 Dec	SWISS
07 Dec - 09 Dec	SWISS

Also check the deals for one-way flights from London to Riga 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 Riga in December from 278€

Return flights