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

Return flights

16 Sep - 27 Sep	Pegasus Airlines
16 Sep - 28 Sep	Pegasus Airlines
17 Sep - 27 Sep	Pegasus Airlines
17 Sep - 28 Sep	Pegasus Airlines
15 Sep - 16 Oct	Ryanair
16 Sep - 29 Sep	Pegasus Airlines
16 Sep - 23 Sep	Pegasus Airlines
17 Sep - 30 Sep	Pegasus Airlines
17 Sep - 23 Sep	Pegasus Airlines
16 Sep - 26 Sep	Pegasus Airlines
17 Sep - 29 Sep	Pegasus Airlines
28 Sep - 05 Oct	Wizz Air Malta
23 Sep - 03 Oct	easyJet
13 Sep - 01 Oct	easyJet
15 Sep - 06 Oct	Fly One
15 Sep - 04 Oct	Fly One
22 Sep - 06 Oct	Fly One
15 Sep - 01 Oct	Fly One
22 Sep - 04 Oct	Fly One
22 Sep - 01 Oct	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.

Book a cheap hotel in Tbilisi

Cheap car rent in Tbilisi

Cheapest return flights from Lisbon to Tbilisi in September from $391

Return flights