Cheapest return flights from London to Newark in September from $504

Best time to book flights for London (LCY) to Newark (EWR) flights at AirHint

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

Return flights

24 Sep - 29 Sep SWISS
24 Sep - 30 Sep SWISS
18 Sep - 22 Sep SWISS
17 Sep - 23 Sep SWISS
18 Sep - 23 Sep SWISS
25 Sep - 29 Sep SWISS
25 Sep - 30 Sep SWISS
11 Sep - 15 Sep SWISS
23 Sep - 30 Sep SWISS
10 Sep - 16 Sep SWISS
25 Sep - 03 Oct Delta
30 Sep - 07 Oct SWISS
19 Sep - 21 Oct SWISS
24 Sep - 01 Oct SWISS
24 Sep - 08 Oct SWISS
30 Sep - 13 Oct SWISS
24 Sep - 05 Oct SWISS
24 Sep - 04 Oct SWISS
09 Sep - 01 Oct SWISS
09 Sep - 08 Oct SWISS

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

Skyscanner

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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