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

Return flights

23 Aug - 25 Aug	Scandinavian Airlines
26 Aug - 09 Sep	Brussels Airlines	direct
22 Aug - 02 Sep	Aer Lingus
22 Aug - 09 Sep	Aer Lingus
22 Aug - 08 Sep	Aer Lingus
15 Aug - 10 Sep	Air Canada
27 Aug - 02 Sep	Air Canada
22 Aug - 06 Sep	Aer Lingus
22 Aug - 07 Sep	Aer Lingus
22 Aug - 05 Sep	Aer Lingus
07 Aug - 26 Aug	Air Canada
25 Aug - 05 Sep	Air Canada
16 Aug - 22 Aug	SWISS
09 Aug - 30 Aug	United
11 Aug - 28 Aug	United
19 Aug - 30 Aug	United
07 Aug - 25 Aug	United
13 Aug - 25 Aug	United
13 Aug - 27 Aug	United
08 Aug - 21 Aug	United

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

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 August from $452

Return flights