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

Return flights

07 Dec - 11 Dec	Vueling Airlines
04 Dec - 09 Dec	Ryanair
12 Dec - 09 Jan	easyJet
09 Dec - 09 Jan	Ryanair
01 Dec - 04 Dec	Ryanair
12 Dec - 14 Dec	easyJet
04 Dec - 13 Dec	Ryanair
12 Dec - 29 Dec	Iberia
06 Dec - 09 Dec	Ryanair
30 Dec - 06 Jan	KLM
09 Dec - 06 Jan	KLM
09 Dec - 27 Dec	Ryanair
17 Dec - 21 Dec	Vueling Airlines
04 Dec - 07 Dec	Ryanair
20 Dec - 03 Jan	KLM

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 $201

Return flights