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

Return flights

01 Dec - 04 Dec	Ryanair
08 Dec - 10 Dec	easyJet
11 Dec - 15 Dec	Air France
10 Dec - 15 Dec	Air France
12 Dec - 15 Dec	Air France
13 Dec - 16 Dec	Ryanair
02 Dec - 08 Jan	LOT
06 Dec - 13 Dec	Ryanair
11 Dec - 16 Dec	Lufthansa
05 Dec - 08 Dec	Lufthansa
06 Dec - 09 Dec	Ryanair
28 Dec - 05 Jan	LOT
29 Dec - 01 Jan	LOT

Also check the deals for one-way flights from Lisbon 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 Lisbon to Tallinn in December from $217

Return flights