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

Return flights

30 Sep - 09 Oct	Scandinavian Airlines
27 Sep - 05 Oct	Scandinavian Airlines
28 Sep - 05 Oct	Scandinavian Airlines
29 Sep - 06 Oct	Scandinavian Airlines
29 Sep - 08 Oct	Scandinavian Airlines
27 Sep - 02 Oct	Scandinavian Airlines
29 Sep - 04 Oct	FrenchBee
23 Sep - 30 Sep	Air Canada
22 Sep - 27 Sep	FrenchBee
21 Sep - 10 Oct	FrenchBee
21 Sep - 11 Oct	FrenchBee
24 Sep - 18 Oct	SWISS
22 Sep - 29 Sep	FrenchBee
20 Sep - 24 Sep	Icelandair
23 Sep - 27 Sep	TAP
20 Sep - 28 Sep	FrenchBee
19 Sep - 26 Sep	FrenchBee
19 Sep - 28 Sep	Scandinavian Airlines

Also check the deals for one-way flights from Newark to Prague 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 Prague in September from 388€

Return flights