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

Return flights

10 Dec - 22 Dec	airBaltic
08 Dec - 15 Dec	airBaltic
12 Dec - 19 Dec	airBaltic
15 Dec - 22 Dec	airBaltic
17 Dec - 24 Dec	airBaltic
08 Dec - 14 Dec	airBaltic
02 Dec - 09 Dec	airBaltic
14 Dec - 21 Dec	airBaltic
04 Dec - 08 Dec	airBaltic
16 Dec - 30 Dec	Pegasus Airlines
22 Dec - 11 Jan	airBaltic
27 Dec - 03 Jan	Pegasus Airlines
18 Dec - 03 Jan	LOT
26 Dec - 02 Jan	LOT
22 Dec - 05 Jan	airBaltic
25 Dec - 04 Jan	airBaltic
19 Dec - 04 Jan	LOT
22 Dec - 11 Jan	Turkish Airlines	direct
21 Dec - 06 Jan	SunExpress
24 Dec - 01 Jan	airBaltic

Also check the deals for one-way flights from Tallinn 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 Tallinn to Istanbul in December from $165

Return flights