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

Return flights

03 Mar - 16 Mar	Air Canada
25 Mar - 31 Mar	Air Canada
25 Mar - 29 Mar	Air Canada
02 Mar - 08 Mar	Air Canada
01 Mar - 06 Mar	Air Canada
28 Mar - 05 Apr	Lufthansa
28 Mar - 12 Apr	Air Canada
28 Mar - 03 Apr	Air Canada
31 Mar - 12 Apr	Air Canada
08 Mar - 19 Mar	Air Canada
02 Mar - 15 Mar	Virgin Atlantic
26 Mar - 31 Mar	Lufthansa
06 Mar - 14 Mar	Air Canada
10 Mar - 23 Mar	United
30 Mar - 17 Apr	Air Canada
31 Mar - 30 Apr	United
31 Mar - 06 Apr	Air Canada
17 Mar - 11 Apr	United
30 Mar - 07 Apr	Air Canada
18 Mar - 11 Apr	United

Also check the deals for one-way flights from New York to London 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 New York to London in March from 419€

Return flights