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

Return flights

17 Sep - 22 Sep	TAP
17 Sep - 23 Sep	TAP
09 Sep - 23 Sep	TAP
16 Sep - 23 Sep	TAP
25 Sep - 29 Sep	TAP
25 Sep - 13 Oct	TAP
15 Sep - 30 Sep	Iberia
15 Sep - 22 Sep	Iberia
10 Sep - 16 Sep	Iberia
09 Sep - 16 Sep	Iberia
23 Sep - 29 Sep	Iberia
29 Sep - 06 Oct	Iberia
24 Sep - 04 Oct	Iberia
16 Sep - 04 Oct	Iberia
29 Sep - 05 Oct	Iberia
22 Sep - 04 Oct	Iberia
25 Sep - 04 Oct	Iberia
21 Sep - 04 Oct	Iberia
26 Sep - 05 Oct	Iberia
20 Sep - 04 Oct	Iberia

Also check the deals for one-way flights from Bilbao 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 Bilbao to New York in September from 350€

Return flights