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

Return flights

01 Apr - 08 Apr	Air France
11 Apr - 19 Apr	Turkish Airlines	direct
21 Apr - 30 Apr	Turkish Airlines	direct
01 Apr - 08 Apr	Turkish Airlines	direct
06 Apr - 12 Apr	Turkish Airlines	direct
02 Apr - 05 Apr	Aegean Airlines
18 Apr - 24 Apr	Lufthansa
29 Apr - 06 May	Lufthansa
15 Apr - 22 Apr	Lufthansa
15 Apr - 30 Apr	Lufthansa
29 Apr - 06 May	Turkish Airlines	direct
18 Apr - 24 Apr	Turkish Airlines	direct
30 Apr - 10 May	Turkish Airlines	direct

Also check the deals for one-way flights from Tunis 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 Tunis to Istanbul in April from 244€

Return flights