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

Return flights

11 Dec - 14 Dec	Ryanair
18 Dec - 29 Dec	airBaltic
18 Dec - 28 Dec	airBaltic
18 Dec - 01 Jan	airBaltic
20 Dec - 23 Dec	LOT
19 Dec - 30 Dec	LOT
21 Dec - 24 Dec	Lufthansa
21 Dec - 06 Jan	Lufthansa
21 Dec - 30 Dec	Finnair
21 Dec - 05 Jan	Finnair
19 Dec - 02 Jan	LOT
18 Dec - 29 Dec	Brussels Airlines	direct
21 Dec - 30 Dec	Brussels Airlines	direct
21 Dec - 24 Dec	Brussels Airlines	direct
18 Dec - 01 Jan	Brussels Airlines	direct
21 Dec - 06 Jan	Brussels Airlines	direct
21 Dec - 05 Jan	Brussels Airlines	direct

Also check the deals for one-way flights from Brussels to Tallinn 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 Brussels to Tallinn in December from $225

Return flights