AirHint found the following cheapest return flights from Lisbon (LIS) to Istanbul (IST) in April 2026 (see full year).

Return flights

26 Apr - 13 May	SKY express
24 Apr - 13 May	SKY express
12 Apr - 22 Apr	SKY express
05 Apr - 22 Apr	SKY express
05 Apr - 12 Apr	SKY express
05 Apr - 09 Apr	SKY express
02 Apr - 07 Apr	Aegean Airlines
20 Apr - 29 Apr	Air Europa
12 Apr - 23 Apr	SKY express
05 Apr - 23 Apr	SKY express
12 Apr - 20 Apr	SKY express
05 Apr - 20 Apr	SKY express
26 Apr - 15 May	SKY express
23 Apr - 13 May	Vueling Airlines
24 Apr - 15 May	SKY express
28 Apr - 13 May	Vueling Airlines
27 Apr - 13 May	Vueling Airlines
28 Apr - 15 May	Vueling Airlines
27 Apr - 15 May	Vueling Airlines

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

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 April from $244

Return flights