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

Return flights

07 Dec - 09 Dec	British Airways
04 Dec - 07 Dec	Scandinavian Airlines
02 Dec - 05 Dec	Scandinavian Airlines
04 Dec - 08 Dec	Scandinavian Airlines
12 Dec - 15 Dec	British Airways
14 Dec - 21 Dec	British Airways
11 Dec - 14 Dec	Scandinavian Airlines
23 Dec - 09 Jan	Finnair
02 Dec - 09 Dec	Scandinavian Airlines
03 Dec - 09 Dec	British Airways
05 Dec - 07 Dec	Scandinavian Airlines
29 Dec - 11 Jan	Lufthansa
29 Dec - 06 Jan	Lufthansa
31 Dec - 07 Jan	British Airways
30 Dec - 01 Jan	Scandinavian Airlines
22 Dec - 06 Jan	Finnair
11 Dec - 05 Jan	Scandinavian Airlines
22 Dec - 05 Jan	Finnair
31 Dec - 02 Jan	Scandinavian Airlines
30 Dec - 02 Jan	Scandinavian Airlines

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 232CAD

Return flights