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

Return flights

10 Sep - 22 Sep	LOT
15 Sep - 22 Sep	SWISS
01 Sep - 16 Sep	LOT
10 Sep - 21 Sep	LOT
17 Sep - 23 Sep	LOT
02 Sep - 13 Sep	LOT
02 Sep - 14 Sep	LOT
17 Sep - 26 Sep	LOT
09 Sep - 14 Sep	Delta
14 Sep - 16 Sep	SWISS
28 Sep - 19 Oct	British Airways
27 Sep - 02 Oct	Scandinavian Airlines

Also check the deals for one-way flights from Newark to Budapest 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 Budapest in September from 376€

Return flights