Cheapest return flights from Lisbon to Istanbul in September from $224

Best time to book flights for Lisbon (LIS) to Istanbul (IST) flights at AirHint

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

Return flights

16 Sep - 24 Sep easyJet
18 Sep - 24 Sep easyJet
19 Sep - 30 Sep easyJet
03 Sep - 14 Sep KLM
15 Sep - 24 Sep easyJet
25 Sep - 30 Sep Ryanair
06 Sep - 14 Sep Air France
08 Sep - 15 Sep easyJet
19 Sep - 29 Sep easyJet
12 Sep - 20 Sep easyJet
30 Sep - 09 Oct Air Serbia
27 Sep - 03 Oct easyJet
24 Sep - 02 Oct Vueling Airlines
24 Sep - 04 Oct Vueling Airlines
29 Sep - 02 Oct Vueling Airlines
16 Sep - 02 Oct Vueling Airlines
12 Sep - 02 Oct Vueling Airlines
24 Sep - 09 Oct Vueling Airlines
24 Sep - 08 Oct Vueling Airlines
24 Sep - 03 Oct Vueling Airlines

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

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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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