AirHint found the following cheapest one-way flights from Tallinn (TLL) to Helsinki (HEL) in December 2025 (see full year).

One-Way flights

12 Dec	Ryanair
02 Dec	Scandinavian Airlines
16 Dec	Scandinavian Airlines
05 Dec	Ryanair
04 Dec	Ryanair
20 Dec	Finnair	direct
21 Dec	Finnair	direct
26 Dec	Finnair	direct
04 Dec	Finnair	direct
30 Dec	Finnair	direct

Also check the deals for return flights from Tallinn to Helsinki 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 one-way flights from Tallinn to Helsinki in December from 55€

One-Way flights