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

Return flights

29 Dec - 08 Jan	Lufthansa
03 Dec - 09 Dec	Lufthansa
10 Dec - 08 Jan	Lufthansa
29 Dec - 05 Jan	Lufthansa
15 Dec - 08 Jan	Lufthansa
07 Dec - 09 Dec	LOT
12 Dec - 15 Dec	Lufthansa
04 Dec - 08 Dec	KLM
08 Dec - 15 Dec	Lufthansa
11 Dec - 15 Dec	KLM
04 Dec - 09 Dec	KLM
22 Dec - 29 Dec	Lufthansa
07 Dec - 14 Dec	LOT
11 Dec - 14 Dec	KLM
29 Dec - 14 Jan	KLM
18 Dec - 09 Jan	KLM
17 Dec - 05 Jan	KLM
26 Dec - 11 Jan	LOT
29 Dec - 07 Jan	KLM
29 Dec - 11 Jan	Lufthansa

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 224€

Return flights