AirHint found the following cheapest return flights from London (LHR) to New York (JFK) in March 2026 (see full year).

Return flights

17 Mar - 14 Apr	Icelandair
01 Mar - 31 Mar	Icelandair
03 Mar - 25 Mar	Icelandair
10 Mar - 24 Mar	Icelandair
13 Mar - 25 Mar	Icelandair
11 Mar - 23 Mar	Icelandair
03 Mar - 15 Mar	Icelandair
10 Mar - 23 Mar	Icelandair
05 Mar - 20 Mar	Icelandair
07 Mar - 15 Mar	Icelandair
18 Mar - 24 Mar	Icelandair
20 Mar - 16 Apr	Icelandair
21 Mar - 15 Apr	Icelandair
24 Mar - 13 Apr	Icelandair
23 Mar - 02 Apr	Icelandair
20 Mar - 02 Apr	Icelandair
21 Mar - 02 Apr	Icelandair
20 Mar - 10 Apr	Icelandair
24 Mar - 10 Apr	Icelandair
20 Mar - 03 Apr	Icelandair

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

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 London to New York in March from 323€

Return flights