AirHint found the following cheapest return flights from Newark (EWR) to London (LGW) in June 2025 (see full year).

Return flights

17 Jun - 23 Jun	Air Canada
16 Jun - 24 Jun	Air Canada
11 Jun - 17 Jun	Air Canada
10 Jun - 17 Jun	Air Canada
11 Jun - 25 Jun	Air Canada
17 Jun - 26 Jun	Air Canada
11 Jun - 14 Jun	Air Canada
17 Jun - 01 Jul	Air Canada
24 Jun - 02 Jul	Air Canada
13 Jun - 16 Jun	Air Canada
10 Jun - 14 Jun	Air Canada
11 Jun - 23 Jun	Air Canada
17 Jun - 03 Jul	Air Canada
25 Jun - 02 Jul	Air Canada
25 Jun - 01 Jul	Air Canada
25 Jun - 07 Jul	Air Canada
24 Jun - 01 Jul	SWISS
26 Jun - 10 Jul	Spirit Airlines
26 Jun - 03 Jul	Spirit Airlines
26 Jun - 01 Jul	Spirit Airlines

Also check the deals for one-way flights from Newark to London in June.

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 June from $497

Return flights