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

Return flights

23 Sep - 21 Oct	Condor
22 Sep - 28 Sep	VietJet Air
22 Sep - 29 Sep	VietJet Air
23 Sep - 30 Sep	Condor
25 Sep - 15 Oct	VietJet Air
24 Sep - 13 Oct	VietJet Air
22 Sep - 28 Sep	Vietnam Airlines	direct
22 Sep - 29 Sep	Vietnam Airlines	direct
23 Sep - 30 Sep	Vietnam Airlines	direct
23 Sep - 21 Oct	Vietnam Airlines	direct

Also check the deals for one-way flights from Hanoi to Frankfurt 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 Hanoi to Frankfurt in September from $695

Return flights