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

Return flights

06 Dec - 10 Jan	British Airways	direct
02 Dec - 13 Dec	Finnair
25 Dec - 07 Jan	LOT
13 Dec - 19 Dec	British Airways	direct
29 Dec - 09 Jan	LOT
09 Dec - 13 Dec	Finnair
30 Dec - 08 Jan	LOT
26 Dec - 06 Jan	LOT
12 Dec - 17 Dec	LOT
01 Dec - 15 Dec	LOT
04 Dec - 09 Dec	LOT
12 Dec - 23 Dec	LOT
30 Dec - 10 Jan	LOT
11 Dec - 13 Dec	LOT
12 Dec - 13 Dec	LOT
11 Dec - 16 Dec	LOT
25 Dec - 06 Jan	LOT
29 Dec - 14 Jan	LOT
29 Dec - 11 Jan	LOT
31 Dec - 05 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 150€

Return flights