Cheapest return flights from New York to London in September from $437

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

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

Return flights

27 Sep - 28 Sep United
30 Sep - 08 Oct Icelandair
01 Sep - 08 Sep Air Canada
21 Sep - 29 Sep Air Canada
26 Sep - 10 Oct Icelandair
23 Sep - 04 Oct Icelandair
23 Sep - 08 Oct Air Canada
23 Sep - 07 Oct Iberia
08 Sep - 16 Sep Iberia
03 Sep - 17 Sep Iberia
30 Sep - 07 Oct Icelandair
24 Sep - 01 Oct Air Canada
30 Sep - 09 Oct Icelandair
07 Sep - 24 Sep Air Canada
10 Sep - 19 Sep Icelandair
30 Sep - 20 Oct Icelandair
14 Sep - 25 Sep Air Canada
03 Sep - 08 Sep Air Canada
02 Sep - 13 Sep Icelandair
20 Sep - 04 Oct Icelandair

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

Skyscanner

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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