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

Return flights

04 Dec - 08 Dec	airBaltic	direct
02 Dec - 09 Dec	airBaltic	direct
09 Dec - 12 Dec	airBaltic	direct
04 Dec - 11 Dec	airBaltic	direct
15 Dec - 18 Dec	Lufthansa
10 Dec - 15 Dec	airBaltic	direct
09 Dec - 15 Dec	airBaltic	direct
05 Dec - 08 Dec	airBaltic	direct
03 Dec - 07 Dec	Lufthansa
06 Dec - 08 Dec	SWISS
31 Dec - 05 Jan	Lufthansa
28 Dec - 07 Jan	Lufthansa
17 Dec - 05 Jan	Lufthansa
28 Dec - 01 Jan	Lufthansa
28 Dec - 02 Jan	Lufthansa
29 Dec - 07 Jan	LOT
29 Dec - 01 Jan	LOT
29 Dec - 02 Jan	Lufthansa
31 Dec - 04 Jan	airBaltic
29 Dec - 07 Jan	airBaltic	direct

Also check the deals for one-way flights from Zurich 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 Zurich to Riga in December from 168€

Return flights