Cheapest return flights from London to Newark in September from $509

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

Return flights

17 Sep - 21 Sep SWISS
24 Sep - 29 Sep SWISS
18 Sep - 22 Sep SWISS
03 Sep - 07 Sep SWISS
21 Sep - 29 Sep SWISS
04 Sep - 09 Sep SWISS
19 Sep - 23 Sep SWISS
23 Sep - 03 Oct SWISS
05 Sep - 19 Sep SWISS
05 Sep - 12 Sep SWISS
12 Sep - 19 Sep SWISS
26 Sep - 09 Oct Delta
24 Sep - 08 Oct SWISS

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

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