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

Return flights

14 Apr - 20 Apr	Ryanair
08 Apr - 15 Apr	Ryanair
14 Apr - 19 Apr	Ryanair
22 Apr - 26 Apr	Ryanair
21 Apr - 26 Apr	Ryanair
15 Apr - 18 Apr	Ryanair
22 Apr - 30 Apr	Ryanair
07 Apr - 14 Apr	KLM
03 Apr - 11 Apr	KLM
08 Apr - 13 Apr	KLM
09 Apr - 09 May	KLM
21 Apr - 03 May	Ryanair
21 Apr - 04 May	Ryanair
27 Apr - 08 May	Ryanair
26 Apr - 04 May	Ryanair
26 Apr - 03 May	Ryanair
26 Apr - 01 May	Ryanair
25 Apr - 03 May	Ryanair
25 Apr - 01 May	Ryanair
29 Apr - 17 May	Ryanair

Also check the deals for one-way flights from Toulouse 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 Toulouse to Istanbul in April from $208

Return flights