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

Return flights

13 Mar - 15 Mar	Scandinavian Airlines
09 Mar - 19 Mar	TAP
02 Mar - 18 Mar	TAP
03 Mar - 10 Mar	TAP
09 Mar - 23 Mar	TAP
09 Mar - 16 Mar	TAP
23 Mar - 29 Mar	TAP
08 Mar - 22 Mar	Aer Lingus
01 Mar - 08 Mar	Aer Lingus
07 Mar - 15 Mar	Air Canada
31 Mar - 25 Apr	Air Canada
27 Mar - 18 Apr	Air Canada
27 Mar - 14 Apr	Air Canada
25 Mar - 06 Apr	Icelandair
18 Mar - 18 Apr	Aer Lingus
19 Mar - 30 Apr	Aer Lingus
25 Mar - 18 Apr	Aer Lingus
25 Mar - 18 Apr	British Airways	direct
15 Mar - 04 Apr	British Airways	direct
18 Mar - 11 Apr	British Airways	direct

Also check the deals for one-way flights from Newark 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 Newark to London in March from $412

Return flights