Cheapest return flights from Newark to London in September from $486

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

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

Return flights

24 Sep - 02 Oct Icelandair
14 Sep - 21 Sep Icelandair
30 Sep - 15 Oct Icelandair
02 Sep - 10 Sep Icelandair
30 Sep - 08 Oct Icelandair
20 Sep - 25 Sep Icelandair
07 Sep - 13 Sep Icelandair
17 Sep - 03 Oct Icelandair
12 Sep - 21 Sep Icelandair
15 Sep - 30 Sep TAP
21 Sep - 25 Sep Icelandair
05 Sep - 29 Sep Icelandair
12 Sep - 20 Sep Icelandair
06 Sep - 19 Sep Icelandair
16 Sep - 02 Oct Icelandair
25 Sep - 02 Oct Icelandair
25 Sep - 03 Oct Icelandair
28 Sep - 05 Oct Icelandair
21 Sep - 03 Oct Icelandair
25 Sep - 06 Oct Icelandair

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