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

Return flights

13 Aug - 20 Aug	Air Canada
29 Aug - 01 Sep	Lufthansa
27 Aug - 15 Sep	Air Canada
19 Aug - 04 Sep	Air Canada
18 Aug - 29 Aug	Lufthansa
12 Aug - 13 Aug	Lufthansa
29 Aug - 12 Sep	Air Canada
05 Aug - 12 Aug	Air Canada
18 Aug - 25 Aug	Air Canada
13 Aug - 05 Sep	Spirit Airlines
10 Aug - 29 Aug	Air Canada
11 Aug - 25 Aug	Air Canada
11 Aug - 18 Aug	Air Canada
16 Aug - 30 Aug	Spirit Airlines
19 Aug - 09 Sep	Spirit Airlines
10 Aug - 25 Aug	Air Canada
19 Aug - 01 Sep	Spirit Airlines
19 Aug - 02 Sep	Spirit Airlines
23 Aug - 02 Sep	Spirit Airlines
23 Aug - 07 Sep	Spirit Airlines

Also check the deals for one-way flights from New York to London in August.

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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Cheapest return flights from New York to London in August from 347€

Return flights