Cheapest return flights from New York to London in September from $522

Best time to book flights for New York (LGA) to London (LGW) flights at AirHint

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

Return flights

08 Sep - 11 Sep Spirit Airlines
17 Sep - 22 Sep Spirit Airlines
07 Sep - 12 Sep Spirit Airlines
13 Sep - 17 Sep Spirit Airlines
01 Sep - 07 Sep Frontier Airlines
16 Sep - 25 Sep Spirit Airlines
13 Sep - 20 Sep Spirit Airlines
07 Sep - 11 Sep Spirit Airlines
09 Sep - 15 Sep Spirit Airlines
08 Sep - 25 Sep Spirit Airlines
28 Sep - 03 Oct Spirit Airlines
27 Sep - 04 Oct Spirit Airlines
27 Sep - 06 Oct Air Transat
19 Sep - 03 Oct Air Transat
30 Sep - 16 Oct Air Transat
16 Sep - 15 Oct Spirit Airlines
21 Sep - 01 Oct Air Transat
24 Sep - 30 Oct Air Transat
29 Sep - 16 Oct Porter Airlines (Canada) Ltd

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.

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