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

Return flights

08 Sep - 15 Sep	Aer Lingus
09 Sep - 16 Sep	Aer Lingus
04 Sep - 14 Sep	Aer Lingus
06 Sep - 10 Sep	Scandinavian Airlines
01 Sep - 07 Sep	Scandinavian Airlines
05 Sep - 12 Sep	Scandinavian Airlines
13 Sep - 26 Sep	Aer Lingus
03 Sep - 08 Sep	Scandinavian Airlines
05 Sep - 12 Sep	United	direct
08 Sep - 15 Sep	United	direct
18 Sep - 02 Oct	SWISS
19 Sep - 05 Oct	SWISS
18 Sep - 02 Oct	Brussels Airlines	direct
19 Sep - 05 Oct	Brussels Airlines	direct

Also check the deals for one-way flights from Newark to Brussels 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 Brussels in September from 370€

Return flights