AirHint found the following cheapest return flights from New York (LGA) to Barcelona (BCN) in September 2026 (see full year).

Return flights

21 Sep - 01 Oct	United
21 Sep - 30 Sep	Air Canada
23 Sep - 30 Sep	Air Canada
27 Sep - 07 Oct	Lufthansa
07 Sep - 18 Sep	Lufthansa
05 Sep - 14 Sep	Air Canada
19 Sep - 06 Oct	Air Canada
22 Sep - 06 Oct	Lufthansa
20 Sep - 06 Oct	Lufthansa
17 Sep - 07 Oct	Air Canada
25 Sep - 02 Oct	Lufthansa
13 Sep - 26 Sep	Air Canada
19 Sep - 03 Oct	United
17 Sep - 06 Oct	Air Canada
03 Sep - 17 Sep	Lufthansa
25 Sep - 09 Oct	Lufthansa
18 Sep - 22 Sep	Lufthansa
18 Sep - 27 Sep	United

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 304€

Return flights