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

Return flights

07 May - 10 May	Air Canada
06 May - 13 May	Aer Lingus
04 May - 12 May	Air Canada
13 May - 17 May	Air Canada
13 May - 20 May	Air Canada
05 May - 19 May	Air Canada
05 May - 10 May	Icelandair
10 May - 15 May	Icelandair
06 May - 12 May	Iberia
11 May - 19 May	Iberia
19 May - 03 Jun	Iberia
18 May - 01 Jun	Iberia
27 May - 01 Jun	Iberia
25 May - 02 Jun	Iberia
26 May - 04 Jun	Iberia
28 May - 14 Jun	Aer Lingus
31 May - 09 Jun	Iberia
26 May - 01 Jun	Iberia
25 May - 01 Jun	Iberia
28 May - 02 Jun	Iberia

Also check the deals for one-way flights from Newark 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 Newark to London in May from $414

Return flights