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

Return flights

18 Mar - 29 Mar	Porter Airlines (Canada) Ltd
16 Mar - 27 Mar	Porter Airlines (Canada) Ltd
22 Mar - 24 Mar	Air Transat
03 Mar - 08 Mar	Air Transat
02 Mar - 07 Mar	Air Transat
06 Mar - 15 Mar	Air Transat
15 Mar - 19 Mar	Air Transat
07 Mar - 14 Mar	Air Transat
14 Mar - 29 Mar	Air Transat
28 Mar - 18 Apr	Air Transat
31 Mar - 12 Apr	Air Transat
31 Mar - 08 Apr	Air Transat
21 Mar - 11 Apr	Air Transat
27 Mar - 04 Apr	Air Transat
30 Mar - 04 Apr	Air Transat
31 Mar - 07 Apr	Air Transat
13 Mar - 27 Mar	Air Transat
28 Mar - 05 Apr	Air Transat
28 Mar - 10 Apr	Air Transat

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 $912

Return flights