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

Return flights

02 Oct - 23 Oct	TAP
02 Oct - 08 Oct	TAP
07 Oct - 15 Oct	TAP
08 Oct - 15 Oct	TAP
13 Oct - 23 Oct	TAP
15 Oct - 22 Oct	TAP
08 Oct - 13 Oct	TAP
05 Oct - 14 Oct	TAP
04 Oct - 13 Oct	TAP
20 Oct - 27 Oct	Scandinavian Airlines
29 Oct - 06 Nov	Air Canada
24 Oct - 03 Nov	Scandinavian Airlines
26 Oct - 12 Nov	Icelandair
27 Oct - 04 Nov	Icelandair
31 Oct - 05 Nov	Air Canada
22 Oct - 15 Nov	Scandinavian Airlines
16 Oct - 03 Nov	Scandinavian Airlines
29 Oct - 05 Nov	Virgin Atlantic
28 Oct - 04 Nov	Delta
29 Oct - 06 Nov	Air France	direct

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

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 London in October from $359

Return flights