AirHint found the following cheapest return flights from Zurich (ZRH) to Hanoi (HAN) in August 2025 (see full year).

Return flights

28 Aug - 15 Sep	Etihad Airways
28 Aug - 17 Sep	Etihad Airways
28 Aug - 11 Sep	Etihad Airways
28 Aug - 10 Sep	Etihad Airways
24 Aug - 05 Sep	Etihad Airways
25 Aug - 11 Sep	Etihad Airways
15 Aug - 04 Sep	Etihad Airways
22 Aug - 07 Sep	Saudia
23 Aug - 07 Sep	Etihad Airways
24 Aug - 07 Sep	Etihad Airways
12 Aug - 29 Aug	Etihad Airways
19 Aug - 26 Aug	Lufthansa
10 Aug - 17 Aug	Air India
02 Aug - 22 Aug	Air India
10 Aug - 22 Aug	Air India
12 Aug - 26 Aug	Etihad Airways
22 Aug - 24 Aug	Air India
23 Aug - 30 Aug	Air India
10 Aug - 26 Aug	Air India
11 Aug - 24 Aug	Air India

Also check the deals for one-way flights from Zurich to Hanoi in August.

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 Zurich to Hanoi in August from $803

Return flights