AirHint found the following cheapest return flights from Treviso (TSF) to Helsinki (HEL) in December 2025 (see full year).

Return flights

11 Dec - 15 Dec	Ryanair
13 Dec - 15 Dec	Ryanair
11 Dec - 14 Dec	Ryanair
12 Dec - 15 Dec	Ryanair
06 Dec - 10 Dec	Ryanair
16 Dec - 10 Jan	Wizz Air Malta
12 Dec - 14 Dec	Ryanair
12 Dec - 19 Dec	Wizz Air Malta
29 Dec - 11 Jan	Ryanair
05 Dec - 09 Dec	Ryanair
31 Dec - 04 Jan	Ryanair
21 Dec - 26 Dec	Ryanair
02 Dec - 08 Dec	Ryanair
29 Dec - 06 Jan	Ryanair
30 Dec - 07 Jan	Ryanair
27 Dec - 04 Jan	Ryanair
31 Dec - 05 Jan	Ryanair
28 Dec - 01 Jan	Ryanair
29 Dec - 03 Jan	Ryanair

Also check the deals for one-way flights from Treviso 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 return flights from Treviso to Helsinki in December from $167

Return flights