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

Return flights

07 Dec - 10 Dec	airBaltic	direct
21 Dec - 24 Dec	airBaltic	direct
25 Dec - 07 Jan	Norwegian Air Sweden AOC
26 Dec - 02 Jan	LOT
20 Dec - 24 Dec	Turkish Airlines	direct
22 Dec - 25 Dec	Turkish Airlines	direct
20 Dec - 03 Jan	Turkish Airlines	direct

Also check the deals for one-way flights from Riga to Istanbul 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 Riga to Istanbul in December from 154€

Return flights