AirHint found the following cheapest return flights from Belfast (BHD) to New York (JFK) in September 2025 (see full year).

Return flights

24 Sep - 29 Sep	easyJet
30 Sep - 07 Oct	easyJet
29 Sep - 03 Oct	easyJet
29 Sep - 13 Oct	easyJet
04 Sep - 30 Sep	easyJet
24 Sep - 28 Sep	easyJet
18 Sep - 21 Sep	easyJet
19 Sep - 21 Sep	easyJet
20 Sep - 21 Sep	British Airways
05 Sep - 11 Sep	KLM
27 Sep - 30 Sep	KLM
15 Sep - 25 Sep	easyJet
11 Sep - 14 Sep	Aer Lingus

Also check the deals for one-way flights from Belfast to New York 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 Belfast to New York in September from $548

Return flights