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

Return flights

22 Jul - 24 Jul	Air Canada
23 Jul - 25 Jul	Air Canada
19 Jul - 21 Jul	Air Canada
09 Jul - 11 Jul	Air Canada
07 Jul - 09 Jul	Air Canada
06 Jul - 08 Jul	Air Canada
16 Jul - 18 Jul	Air Canada
14 Jul - 16 Jul	Air Canada
26 Jul - 28 Jul	SWISS
24 Jul - 29 Aug	TAP
13 Jul - 14 Jul	Air Canada
16 Jul - 29 Aug	TAP
25 Jul - 27 Aug	Aer Lingus
30 Jul - 23 Aug	Aer Lingus
30 Jul - 13 Aug	Aer Lingus
30 Jul - 14 Aug	Aer Lingus
27 Jul - 26 Aug	United
23 Jul - 11 Aug	TAP
15 Jul - 07 Aug	TAP
24 Jul - 07 Aug	TAP

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

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 July from $388

Return flights