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

Return flights

15 Mar - 25 Mar	SWISS
11 Mar - 14 Mar	SWISS
25 Mar - 15 Apr	SWISS
12 Mar - 26 Mar	Air Canada
12 Mar - 16 Mar	Air Canada
13 Mar - 15 Mar	Air Canada
11 Mar - 16 Mar	Air Canada
11 Mar - 18 Mar	Air Canada
03 Mar - 08 Mar	Air Canada
05 Mar - 10 Mar	Air Canada
18 Mar - 24 Mar	Air Canada
24 Mar - 01 Apr	Aer Lingus
23 Mar - 02 Apr	Aer Lingus
25 Mar - 01 Apr	Aer Lingus
22 Mar - 01 Apr	Aer Lingus
31 Mar - 07 Apr	TAP
31 Mar - 06 Apr	TAP
20 Mar - 19 Apr	United
20 Mar - 02 Apr	Aer Lingus
20 Mar - 01 Apr	United

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 $446

Return flights