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

Return flights

05 May - 12 May	Aer Lingus
07 May - 10 May	Aer Lingus
11 May - 01 Jun	Aer Lingus
01 May - 05 May	Aer Lingus
08 May - 30 May	Aer Lingus
25 May - 31 May	Aer Lingus
13 May - 20 May	Aer Lingus
17 May - 06 Jun	Aer Lingus
19 May - 26 May	Aer Lingus
24 May - 07 Jun	Aer Lingus
02 May - 19 May	Aer Lingus
15 May - 19 May	Aer Lingus
08 May - 15 May	Aer Lingus
19 May - 15 Jun	Aer Lingus
28 May - 02 Jun	Aer Lingus
21 May - 13 Jun	Iberia
27 May - 02 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 368€

Return flights