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

Return flights

02 Oct - 08 Oct	Aer Lingus
06 Oct - 11 Oct	Aer Lingus
01 Oct - 31 Oct	Aer Lingus
01 Oct - 16 Oct	Aer Lingus
04 Oct - 07 Oct	Aer Lingus
01 Oct - 06 Oct	Aer Lingus
23 Oct - 31 Oct	Air Canada
16 Oct - 20 Oct	Aer Lingus
21 Oct - 31 Oct	Aer Lingus
15 Oct - 19 Oct	Aer Lingus
27 Oct - 05 Nov	Aer Lingus
16 Oct - 03 Nov	Aer Lingus
22 Oct - 02 Nov	Aer Lingus
18 Oct - 01 Nov	Aer Lingus
23 Oct - 03 Nov	SWISS
31 Oct - 03 Nov	Aer Lingus
30 Oct - 07 Nov	Aer Lingus
27 Oct - 02 Nov	Icelandair
31 Oct - 08 Nov	Aer Lingus
31 Oct - 05 Nov	TAP

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 327€

Return flights