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

Return flights

11 May - 21 May	AirAsia X
11 May - 17 May	AirAsia X
05 May - 16 May	Oman Air
06 May - 16 May	AirAsia X
04 May - 12 May	AirAsia X
08 May - 17 May	Air Arabia
04 May - 10 May	AirAsia X
14 May - 23 May	Air China
05 May - 17 May	Air Arabia
17 May - 23 May	Gulf Air
23 May - 02 Jun	IndiGo
25 May - 07 Jun	AirAsia X
24 May - 01 Jun	IndiGo
29 May - 06 Jun	IndiGo
25 May - 07 Jun	Vietnam Airlines	direct
23 May - 02 Jun	Vietnam Airlines	direct
24 May - 01 Jun	Vietnam Airlines	direct
29 May - 06 Jun	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Hanoi in May.

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 Istanbul to Hanoi in May from $583

Return flights