Cheapest return flights from New York to London in September from $506

AirHint found the following cheapest return flights from New York (LGA) to London (LGW) in September 2025 (see full year).

Return flights

18 Sep - 22 Sep Air Canada
22 Sep - 29 Sep Air Canada
19 Sep - 23 Sep Air Canada
24 Sep - 08 Oct Lufthansa
10 Sep - 17 Sep Spirit Airlines
29 Sep - 06 Oct Spirit Airlines
09 Sep - 15 Sep Spirit Airlines
10 Sep - 15 Sep Spirit Airlines
09 Sep - 14 Sep Spirit Airlines
13 Sep - 19 Sep Spirit Airlines
13 Sep - 17 Sep Spirit Airlines
02 Sep - 08 Sep Lufthansa
28 Sep - 02 Oct Spirit Airlines
26 Sep - 06 Oct Spirit Airlines
29 Sep - 13 Oct Spirit Airlines
13 Sep - 11 Oct Spirit Airlines
12 Sep - 11 Oct Spirit Airlines
19 Sep - 06 Oct Air Transat
19 Sep - 03 Oct Air Transat
29 Sep - 07 Oct Air Transat

Also check the deals for one-way flights from New York 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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.