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

Return flights

11 Apr - 24 Apr	AirAsia
02 Apr - 12 Apr	AirAsia
23 Apr - 13 May	AirAsia
23 Apr - 03 May	AirAsia
25 Apr - 13 May	AirAsia
25 Apr - 03 May	AirAsia
21 Apr - 24 Apr	AirAsia
21 Apr - 03 May	AirAsia
30 Apr - 20 May	AirAsia
30 Apr - 13 May	AirAsia
30 Apr - 03 May	AirAsia
14 Apr - 24 Apr	AirAsia
14 Apr - 03 May	AirAsia
22 Apr - 07 May	Qatar Airways
17 Apr - 24 Apr	Qatar Airways
17 Apr - 24 Apr	Turkish Airlines	direct
02 Apr - 12 Apr	Turkish Airlines	direct

Also check the deals for one-way flights from Hanoi 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 Hanoi to Istanbul in April from $649

Return flights