AirHint found the following cheapest return flights from New York (NYC) to London (STN) in May 2026 (see full year).

Return flights

02 May - 07 May	Icelandair
05 May - 11 May	Air Canada
07 May - 13 May	Air Canada
06 May - 09 May	Air Canada
06 May - 13 May	Lufthansa
05 May - 07 May	Aer Lingus
01 May - 13 May	Icelandair
01 May - 08 May	Icelandair
04 May - 10 May	Air Canada
02 May - 13 May	Lufthansa
22 May - 02 Jun	Air Canada
29 May - 05 Jun	Lufthansa
20 May - 03 Jun	Air Canada
31 May - 07 Jun	Air Canada
29 May - 14 Jun	Air Canada
24 May - 01 Jun	Lufthansa
24 May - 02 Jun	Lufthansa
31 May - 14 Jun	Air Canada
26 May - 06 Jun	Lufthansa
29 May - 07 Jun	Air Canada

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

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 May from $390

Return flights