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

Return flights

28 Aug - 16 Sep	Air China
29 Aug - 09 Sep	Air China
29 Aug - 14 Sep	Air China
26 Aug - 20 Sep	Air China
31 Aug - 14 Sep	Air China
24 Aug - 14 Sep	Air China
30 Aug - 14 Sep	Air China
30 Aug - 19 Sep	Air China
31 Aug - 17 Sep	Air China
26 Aug - 09 Sep	Air China
07 Aug - 12 Aug	Air China
24 Aug - 31 Aug	Air China
19 Aug - 24 Aug	Air China
25 Aug - 31 Aug	Sichuan Airlines
12 Aug - 23 Aug	Hainan Airlines
25 Aug - 28 Aug	Air China
05 Aug - 12 Aug	Air China
05 Aug - 09 Aug	Air China
07 Aug - 19 Aug	Air China
25 Aug - 30 Aug	Sichuan Airlines

Also check the deals for one-way flights from Madrid 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 Madrid to Hanoi in August from 578€

Return flights