AirHint found the following cheapest return flights from London (LHR) to New York (JFK) in September 2026 (see full year).

Return flights

14 Sep - 28 Sep	TAP
16 Sep - 30 Sep	TAP
15 Sep - 29 Sep	TAP
22 Sep - 30 Sep	TAP
24 Sep - 30 Sep	TAP
22 Sep - 29 Sep	TAP
23 Sep - 30 Sep	TAP
21 Sep - 30 Sep	TAP
24 Sep - 29 Sep	TAP
24 Sep - 28 Sep	TAP
25 Sep - 04 Oct	TAP
30 Sep - 11 Oct	TAP
26 Sep - 11 Oct	TAP
28 Sep - 05 Oct	TAP
30 Sep - 06 Oct	TAP
30 Sep - 07 Oct	TAP
30 Sep - 04 Oct	TAP
30 Sep - 12 Oct	TAP
19 Sep - 19 Oct	Scandinavian Airlines
05 Sep - 03 Oct	TAP

Also check the deals for one-way flights from London 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 London to New York in September from 406€

Return flights