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

Return flights

31 Aug - 04 Sep	Wizz Air
31 Aug - 05 Sep	Wizz Air
14 Aug - 18 Aug	Pegasus Airlines
20 Aug - 22 Aug	Vueling Airlines
14 Aug - 17 Aug	Pegasus Airlines
12 Aug - 25 Aug	Pegasus Airlines
15 Aug - 29 Aug	Ryanair
30 Aug - 17 Sep	Fly One
30 Aug - 15 Sep	Fly One
30 Aug - 13 Sep	Fly One
16 Aug - 01 Sep	Fly One
06 Aug - 11 Aug	Fly One
09 Aug - 13 Aug	Fly One
06 Aug - 13 Aug	Fly One
06 Aug - 09 Aug	Fly One
04 Aug - 13 Aug	Fly One

Also check the deals for one-way flights from Lisbon to Tbilisi 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 Lisbon to Tbilisi in August from $539

Return flights