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

Return flights

24 Sep - 01 Oct	Wizz Air Malta
23 Sep - 02 Oct	easyJet
25 Sep - 03 Oct	easyJet
10 Sep - 05 Oct	Wizz Air
26 Sep - 28 Sep	easyJet
20 Sep - 26 Sep	Ryanair
06 Sep - 14 Sep	KLM
16 Sep - 22 Sep	TAP
28 Sep - 05 Oct	easyJet
11 Sep - 16 Sep	Wizz Air
08 Sep - 17 Sep	Wizz Air
01 Sep - 08 Sep	Ryanair
11 Sep - 15 Sep	Ryanair
27 Sep - 13 Oct	Fly One
27 Sep - 18 Oct	Fly One
27 Sep - 08 Oct	Fly One
27 Sep - 01 Oct	Fly One
20 Sep - 08 Oct	Fly One
20 Sep - 24 Sep	Fly One
13 Sep - 24 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 300€

Return flights