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

Return flights

04 May - 11 May	Aer Lingus
05 May - 12 May	Aer Lingus
08 May - 11 May	Aer Lingus
12 May - 19 May	Aer Lingus
10 May - 14 May	Aer Lingus
05 May - 30 May	Aer Lingus
01 May - 08 May	Aer Lingus
06 May - 06 Jun	Aer Lingus
13 May - 20 May	Norse Atlantic Airways
23 May - 30 May	Aer Lingus
27 May - 31 May	Aer Lingus
13 May - 06 Jun	Aer Lingus
15 May - 02 Jun	Aer Lingus
14 May - 04 Jun	Aer Lingus
14 May - 06 Jun	Aer Lingus
27 May - 20 Jun	Aer Lingus
29 May - 01 Jun	Aer Lingus
31 May - 20 Jun	Aer Lingus
04 May - 14 Jun	Norse Atlantic Airways
30 May - 20 Jun	Aer Lingus

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 418€

Return flights