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

Return flights

14 Sep - 24 Sep	Pegasus Airlines
18 Sep - 26 Sep	Pegasus Airlines
18 Sep - 03 Oct	Pegasus Airlines
24 Sep - 04 Oct	Pegasus Airlines
26 Sep - 02 Oct	Jazeera Airways
09 Sep - 16 Sep	Pegasus Airlines
12 Sep - 20 Sep	Pegasus Airlines
10 Sep - 14 Sep	Pegasus Airlines
04 Sep - 09 Sep	Jazeera Airways
04 Sep - 06 Sep	Jazeera Airways

Also check the deals for one-way flights from Kuwait to Lisbon 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 Kuwait to Lisbon in September from 310€

Return flights