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

Return flights

01 Dec - 04 Dec	Ryanair
01 Dec - 04 Dec	airBaltic	direct
05 Dec - 07 Dec	airBaltic	direct
15 Dec - 04 Jan	Lufthansa	direct
21 Dec - 28 Dec	airBaltic	direct
21 Dec - 26 Dec	airBaltic	direct
28 Dec - 02 Jan	airBaltic	direct
24 Dec - 28 Dec	airBaltic	direct
26 Dec - 07 Jan	airBaltic	direct
31 Dec - 04 Jan	airBaltic	direct
26 Dec - 30 Dec	Lufthansa	direct
31 Dec - 03 Jan	Lufthansa	direct
27 Dec - 07 Jan	LOT
30 Dec - 02 Jan	LOT

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Riga in December from 164€

Return flights