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

Return flights

27 Apr - 05 May	Aegean Airlines
24 Apr - 29 Apr	British Airways
12 Apr - 16 Apr	Aegean Airlines
17 Apr - 21 Apr	Aegean Airlines
10 Apr - 17 Apr	Aegean Airlines
07 Apr - 14 Apr	Aegean Airlines
09 Apr - 12 Apr	Aegean Airlines
30 Apr - 03 May	Ryanair
27 Apr - 05 May	Turkish Airlines	direct
09 Apr - 12 Apr	Turkish Airlines	direct
30 Apr - 03 May	Turkish Airlines	direct
07 Apr - 14 Apr	Turkish Airlines	direct
10 Apr - 17 Apr	Turkish Airlines	direct

Also check the deals for one-way flights from Brussels 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 Brussels to Istanbul in April from 213€

Return flights