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

Return flights

22 Apr - 12 May	SKY express
24 Apr - 12 May	SKY express
22 Apr - 13 May	SKY express
24 Apr - 13 May	SKY express
22 Apr - 05 May	SKY express
24 Apr - 05 May	SKY express
01 Apr - 08 Apr	SKY express
22 Apr - 27 Apr	SKY express
30 Apr - 05 May	Aegean Airlines
22 Apr - 03 May	SKY express
24 Apr - 03 May	SKY express
03 Apr - 09 Apr	SKY express
23 Apr - 30 Apr	Aegean Airlines
01 Apr - 09 Apr	SKY express
01 Apr - 06 Apr	Air France
24 Apr - 27 Apr	SKY express
23 Apr - 12 May	Vueling Airlines
22 Apr - 24 Apr	SKY express
02 Apr - 09 Apr	Aegean Airlines
03 Apr - 08 Apr	KLM

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 199€

Return flights