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

Return flights

16 Sep - 20 Oct	Ryanair
28 Sep - 30 Oct	Etihad Airways
16 Sep - 08 Oct	Condor
16 Sep - 30 Sep	Ryanair
13 Sep - 04 Oct	Smart Wings
12 Sep - 17 Sep	Smart Wings
12 Sep - 19 Sep	Smart Wings
20 Sep - 05 Oct	Pegasus Airlines
16 Sep - 07 Oct	Ryanair
27 Sep - 18 Oct	Smart Wings
12 Sep - 27 Sep	Condor
12 Sep - 21 Sep	Condor
12 Sep - 28 Sep	Condor
18 Sep - 08 Oct	Condor
22 Sep - 07 Oct	Condor
22 Sep - 15 Oct	Etihad Airways
12 Sep - 22 Sep	Smart Wings
11 Sep - 21 Sep	Condor
17 Sep - 22 Sep	easyJet
13 Sep - 28 Sep	Smart Wings

Also check the deals for one-way flights from Prague 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 Prague to Hanoi in September from 583€

Return flights