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

Return flights

24 Sep - 05 Oct	TAP
24 Sep - 29 Sep	TAP
28 Sep - 05 Oct	Wizz Air Malta
19 Sep - 30 Sep	Pegasus Airlines
17 Sep - 24 Sep	Ryanair
18 Sep - 25 Sep	easyJet
12 Sep - 19 Sep	Wizz Air
08 Sep - 11 Sep	Ryanair
15 Sep - 06 Oct	Fly One
15 Sep - 04 Oct	Fly One
15 Sep - 01 Oct	Fly One
27 Sep - 06 Oct	Fly One
27 Sep - 08 Oct	Fly One
27 Sep - 04 Oct	Fly One
27 Sep - 01 Oct	Fly One
20 Sep - 06 Oct	Fly One
08 Sep - 15 Sep	Fly One
08 Sep - 13 Sep	Fly One

Also check the deals for one-way flights from Lisbon to Tbilisi in September.

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 September from 298€

Return flights