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

Return flights

02 Dec - 08 Dec	Pegasus Airlines
29 Dec - 04 Jan	airBaltic	direct
24 Dec - 04 Jan	airBaltic	direct
03 Dec - 09 Dec	Pegasus Airlines
05 Dec - 08 Dec	Pegasus Airlines
29 Dec - 02 Jan	airBaltic	direct
31 Dec - 07 Jan	LOT
13 Dec - 16 Dec	LOT
10 Dec - 13 Dec	LOT
09 Dec - 11 Dec	AJet
01 Dec - 08 Dec	airBaltic	direct
05 Dec - 08 Dec	airBaltic	direct
31 Dec - 07 Jan	airBaltic	direct
05 Dec - 12 Dec	Pegasus Airlines
12 Dec - 18 Dec	LOT
30 Dec - 02 Jan	LOT
30 Dec - 04 Jan	LOT
28 Dec - 02 Jan	LOT
27 Dec - 03 Jan	LOT
31 Dec - 02 Jan	airBaltic	direct

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

Return flights