AirHint found the following cheapest return flights from Istanbul (IST) to Vilnius (VNO) in September 2025 (see full year).

Return flights

24 Sep - 27 Sep	Pegasus Airlines
26 Sep - 28 Sep	Pegasus Airlines
25 Sep - 29 Sep	Pegasus Airlines
09 Sep - 16 Sep	Pegasus Airlines
03 Sep - 05 Oct	Pegasus Airlines
04 Sep - 08 Sep	airBaltic
12 Sep - 14 Sep	airBaltic
05 Sep - 07 Sep	LOT
01 Sep - 04 Sep	airBaltic
04 Sep - 08 Sep	Turkish Airlines	direct
24 Sep - 27 Sep	Turkish Airlines	direct
03 Sep - 05 Oct	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Vilnius 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 Istanbul to Vilnius in September from 154€

Return flights