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

Return flights

02 Dec - 04 Dec	Ryanair
11 Dec - 15 Dec	Ryanair
01 Dec - 04 Dec	Ryanair
03 Dec - 05 Dec	Ryanair
08 Dec - 11 Dec	Scandinavian Airlines
09 Dec - 10 Dec	Ryanair
09 Dec - 11 Dec	Ryanair
11 Dec - 14 Dec	Ryanair
13 Dec - 08 Jan	Iberia
09 Dec - 13 Dec	Ryanair
10 Dec - 11 Dec	Ryanair
30 Dec - 10 Jan	KLM
09 Dec - 06 Jan	Ryanair
13 Dec - 06 Jan	Lufthansa
14 Dec - 06 Jan	easyJet
12 Dec - 05 Jan	easyJet
11 Dec - 04 Jan	Ryanair
14 Dec - 04 Jan	KLM
29 Dec - 04 Jan	KLM
13 Dec - 03 Jan	Lufthansa

Also check the deals for one-way flights from Porto 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 Porto to Tallinn in December from 163€

Return flights