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

Return flights

01 Oct - 06 Oct	easyJet
02 Oct - 07 Oct	easyJet
01 Oct - 07 Oct	easyJet
10 Oct - 19 Oct	Volotea
08 Oct - 15 Oct	Ryanair
01 Oct - 16 Oct	Ryanair
08 Oct - 13 Oct	Ryanair
01 Oct - 08 Oct	Ryanair
02 Oct - 12 Oct	Ryanair
10 Oct - 14 Oct	easyJet
13 Oct - 03 Nov	easyJet
30 Oct - 04 Nov	easyJet
30 Oct - 10 Nov	easyJet
29 Oct - 03 Nov	easyJet
29 Oct - 15 Nov	Vueling Airlines
26 Oct - 02 Nov	Aegean Airlines
12 Oct - 03 Nov	easyJet
29 Oct - 19 Nov	Vueling Airlines
25 Oct - 02 Nov	Wizz Air Malta
24 Oct - 01 Nov	Vueling Airlines

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

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 Istanbul in October from 176€

Return flights