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

Return flights

30 Aug - 06 Sep	Air France
25 Aug - 31 Aug	Ryanair
23 Aug - 01 Sep	Ryanair
26 Aug - 29 Aug	SWISS
31 Aug - 06 Sep	Ryanair
25 Aug - 29 Aug	Ryanair
18 Aug - 26 Aug	Air France
24 Aug - 01 Sep	Ryanair
25 Aug - 30 Aug	Ryanair
24 Aug - 29 Aug	SWISS
26 Aug - 31 Aug	Ryanair
23 Aug - 06 Sep	Finnair
18 Aug - 30 Aug	Air France
24 Aug - 31 Aug	Ryanair
17 Aug - 22 Aug	airBaltic

Also check the deals for one-way flights from Tallinn to Lisbon in August.

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 Tallinn to Lisbon in August from $254

Return flights