AirHint found the following cheapest return flights from Frankfurt (FRA) to Hanoi (HAN) in September 2025 (see full year).

Return flights

03 Sep - 23 Sep	Air China
02 Sep - 23 Sep	Air China
02 Sep - 11 Sep	Ryanair
01 Sep - 08 Sep	Air China
01 Sep - 07 Sep	Air China
23 Sep - 17 Oct	Air China
21 Sep - 13 Oct	Air China
18 Sep - 13 Oct	Air China
12 Sep - 12 Oct	Air China
24 Sep - 28 Oct	Air China
15 Sep - 19 Oct	Air China
13 Sep - 15 Oct	Air China
20 Sep - 18 Oct	Air China
24 Sep - 17 Oct	Air China
06 Sep - 16 Sep	Ryanair
09 Sep - 09 Oct	Ryanair
13 Sep - 18 Sep	Ryanair
04 Sep - 24 Sep	Turkish Airlines
09 Sep - 23 Sep	Ryanair
02 Sep - 18 Sep	Ryanair

Also check the deals for one-way flights from Frankfurt to Hanoi in September.

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 Frankfurt to Hanoi in September from 609€

Return flights