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

Return flights

01 May - 05 May	Air Canada
06 May - 11 May	Aer Lingus
01 May - 09 May	Air Canada
06 May - 13 May	Aer Lingus
01 May - 07 May	Air Canada
01 May - 06 May	Air Canada
04 May - 11 May	Air Canada
01 May - 08 May	Air Canada
07 May - 18 May	Air Canada
11 May - 18 May	Air Canada
19 May - 03 Jun	Iberia
01 May - 01 Jun	Iberia
27 May - 01 Jun	Iberia
22 May - 05 Jun	Iberia
28 May - 02 Jun	Iberia
25 May - 01 Jun	Iberia
31 May - 09 Jun	Iberia
05 May - 01 Jun	Turkish Airlines
28 May - 11 Jun	Spirit Airlines
27 May - 10 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 $398

Return flights