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

Return flights

08 Dec - 16 Dec	Lufthansa
10 Dec - 16 Dec	Lufthansa
10 Dec - 17 Dec	Lufthansa
01 Dec - 10 Dec	Lufthansa
01 Dec - 11 Dec	Lufthansa
31 Dec - 08 Jan	Lufthansa
04 Dec - 08 Dec	KLM
05 Dec - 08 Dec	KLM
31 Dec - 11 Jan	KLM
31 Dec - 09 Jan	KLM
01 Dec - 04 Dec	KLM
11 Dec - 15 Dec	KLM
31 Dec - 07 Jan	KLM
05 Dec - 11 Dec	KLM
11 Dec - 11 Jan	KLM
17 Dec - 09 Jan	KLM
17 Dec - 07 Jan	KLM
10 Dec - 11 Jan	KLM
16 Dec - 08 Jan	Lufthansa
30 Dec - 08 Jan	LOT

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 221€

Return flights