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

Return flights

21 Apr - 28 Apr	Air Europa
15 Apr - 22 Apr	Air Europa
15 Apr - 20 Apr	Air Europa
14 Apr - 20 Apr	Air Europa
28 Apr - 05 May	Air Europa
20 Apr - 24 Apr	Air Europa
22 Apr - 27 Apr	Air Europa
08 Apr - 13 Apr	Vueling Airlines
25 Apr - 29 Apr	easyJet
22 Apr - 29 Apr	Ryanair
24 Apr - 29 Apr	SKY express
21 Apr - 02 May	Air Europa
24 Apr - 06 May	SKY express
24 Apr - 05 May	SKY express
14 Apr - 05 May	Vueling Airlines
21 Apr - 06 May	Vueling Airlines
14 Apr - 01 May	Vueling Airlines
18 Apr - 06 May	Vueling Airlines
21 Apr - 05 May	Vueling Airlines
28 Apr - 06 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 103€

Return flights