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

Return flights

15 Mar - 22 Mar	Icelandair
18 Mar - 24 Mar	Icelandair
17 Mar - 22 Mar	Icelandair
07 Mar - 15 Mar	Icelandair
04 Mar - 11 Mar	Icelandair
09 Mar - 23 Mar	Icelandair
18 Mar - 31 Mar	Icelandair
18 Mar - 30 Mar	Icelandair
07 Mar - 10 Mar	Icelandair
07 Mar - 17 Mar	Icelandair
16 Mar - 16 Apr	TAP
23 Mar - 13 Apr	TAP
19 Mar - 28 Apr	Delta
19 Mar - 28 Apr	British Airways	direct
01 Mar - 03 Apr	United
25 Mar - 21 Apr	Icelandair
21 Mar - 19 Apr	United
25 Mar - 14 Apr	TAP
13 Mar - 14 Apr	United
01 Mar - 07 Apr	Aer Lingus

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 $406

Return flights