Cheapest one-way flights from New York to London in September from $218

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

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

One-Way flights

16 Sep Spirit Airlines
13 Sep Spirit Airlines
17 Sep Spirit Airlines
03 Sep Frontier Airlines
06 Sep Frontier Airlines
08 Sep Spirit Airlines
12 Sep Frontier Airlines
07 Sep Spirit Airlines
10 Sep Frontier Airlines
11 Sep Spirit Airlines

Also check the deals for return 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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