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

Return flights

19 Sep - 22 Sep	Pegasus Airlines
19 Sep - 06 Oct	Pegasus Airlines
16 Sep - 15 Oct	AJet
15 Sep - 19 Oct	Ryanair
15 Sep - 21 Sep	Ryanair
15 Sep - 13 Oct	Air China
22 Sep - 13 Oct	Air China
10 Sep - 14 Oct	Air China
14 Sep - 19 Oct	Air China
10 Sep - 08 Oct	Air France
09 Sep - 21 Sep	Ryanair
15 Sep - 22 Sep	Ryanair
16 Sep - 27 Oct	Air China
15 Sep - 06 Oct	Ryanair
02 Sep - 16 Sep	Ryanair
18 Sep - 25 Sep	Wizz Air Malta
08 Sep - 22 Sep	Wizz Air Malta
09 Sep - 23 Sep	Ryanair
03 Sep - 22 Sep	Air China
20 Sep - 30 Sep	AJet

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 588€

Return flights