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

Return flights

31 Dec - 17 Jan	Lufthansa
31 Dec - 09 Jan	Scandinavian Airlines
31 Dec - 01 Jan	Scandinavian Airlines
31 Dec - 11 Jan	LOT
31 Dec - 12 Jan	LOT
30 Dec - 27 Jan	LOT
30 Dec - 08 Jan	LOT
30 Dec - 09 Jan	LOT
30 Dec - 11 Jan	LOT
31 Dec - 07 Jan	LOT
27 Dec - 31 Dec	LOT
30 Dec - 31 Dec	Scandinavian Airlines
28 Dec - 31 Dec	LOT
27 Dec - 28 Dec	LOT
27 Dec - 29 Dec	LOT
31 Dec - 31 Dec	Scandinavian Airlines
27 Dec - 30 Dec	LOT
28 Dec - 30 Dec	LOT
29 Dec - 30 Dec	LOT
28 Dec - 28 Dec	British Airways

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 192€

Return flights