Cheapest return flights from New York to London in September from $459

Best time to book flights for New York (JFK) to London (LHR) flights at AirHint

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

Return flights

26 Sep - 28 Sep SWISS
19 Sep - 06 Oct Icelandair
23 Sep - 22 Oct Icelandair
27 Sep - 10 Oct Icelandair
12 Sep - 14 Sep Scandinavian Airlines
23 Sep - 30 Sep Icelandair
10 Sep - 24 Sep Scandinavian Airlines
01 Sep - 08 Sep Scandinavian Airlines
28 Sep - 04 Oct Icelandair
01 Sep - 10 Sep Scandinavian Airlines
09 Sep - 18 Sep Scandinavian Airlines
21 Sep - 28 Sep Scandinavian Airlines
20 Sep - 24 Sep Icelandair
19 Sep - 22 Sep Icelandair
29 Sep - 03 Oct Icelandair
18 Sep - 16 Oct Icelandair
22 Sep - 01 Oct Icelandair
14 Sep - 09 Oct Icelandair
30 Sep - 06 Oct Icelandair
14 Sep - 05 Oct Icelandair

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

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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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