AirHint found the following cheapest return flights from New York (NYC) to Barcelona (BCN) in September 2025 (see full year).

Return flights

29 Sep - 08 Oct	Iberia	direct
30 Sep - 07 Oct	Air Canada
22 Sep - 30 Sep	Air Canada
27 Sep - 06 Oct	Air Canada
28 Sep - 10 Oct	Air Canada
24 Sep - 01 Oct	Air Canada
30 Sep - 14 Oct	Air Canada
22 Sep - 03 Oct	Air Canada
28 Sep - 09 Oct	British Airways	direct
28 Sep - 03 Oct	Air Canada
21 Sep - 30 Sep	SWISS
29 Sep - 06 Oct	SWISS
23 Sep - 25 Sep	Iberia	direct
21 Sep - 26 Sep	Icelandair
24 Sep - 26 Sep	American Airlines
23 Sep - 26 Sep	Iberia For Level	direct
22 Sep - 29 Sep	SWISS
22 Sep - 25 Sep	Iberia For Level	direct
14 Sep - 26 Sep	Icelandair
26 Sep - 30 Sep	Brussels Airlines

Also check the deals for one-way flights from New York to Barcelona 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 New York to Barcelona in September from $326

Return flights