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

Return flights

19 Aug - 28 Aug	Air Canada
12 Aug - 20 Aug	Air Canada
05 Aug - 20 Aug	Air Canada
12 Aug - 21 Aug	Air Canada
03 Aug - 11 Aug	Air Canada
06 Aug - 11 Aug	Air Canada
04 Aug - 11 Aug	Air Canada
20 Aug - 28 Aug	Air Canada
11 Aug - 22 Aug	Air Canada
27 Aug - 01 Sep	Air Canada
05 Aug - 11 Aug	Air Canada
25 Aug - 02 Sep	Air Canada
27 Aug - 03 Sep	Air Canada
30 Aug - 06 Sep	Scandinavian Airlines
27 Aug - 09 Sep	Icelandair
26 Aug - 02 Sep	Icelandair
23 Aug - 01 Sep	Air Canada
15 Aug - 01 Sep	Air Canada
28 Aug - 01 Sep	Icelandair
29 Aug - 01 Sep	Air Canada

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 $427

Return flights