AirHint found the following cheapest return flights from Newark (EWR) to Vienna (VIE) in September 2025 (see full year).

Return flights

29 Sep - 06 Oct	SWISS
29 Sep - 14 Oct	SWISS
21 Sep - 11 Oct	Scandinavian Airlines
30 Sep - 15 Oct	SWISS
22 Sep - 18 Oct	SWISS
22 Sep - 25 Sep	TAP
16 Sep - 11 Oct	Scandinavian Airlines
26 Sep - 18 Oct	Scandinavian Airlines
28 Sep - 18 Oct	TAP
30 Sep - 12 Oct	TAP
29 Sep - 13 Oct	TAP
21 Sep - 24 Sep	SWISS
09 Sep - 24 Sep	FrenchBee
17 Sep - 21 Sep	FrenchBee
12 Sep - 15 Sep	FrenchBee
23 Sep - 29 Sep	Icelandair
25 Sep - 27 Sep	FrenchBee
09 Sep - 14 Sep	FrenchBee
13 Sep - 20 Sep	FrenchBee
14 Sep - 25 Sep	FrenchBee

Also check the deals for one-way flights from Newark to Vienna 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 Newark to Vienna in September from 421€

Return flights