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

Return flights

02 Mar - 09 Mar	TAP
09 Mar - 23 Mar	TAP
03 Mar - 11 Mar	TAP
01 Mar - 11 Mar	TAP
10 Mar - 17 Mar	TAP
04 Mar - 10 Mar	Aer Lingus
10 Mar - 22 Apr	TAP
04 Mar - 11 Mar	Aer Lingus
03 Mar - 07 Mar	Air Canada
01 Mar - 31 Mar	Aer Lingus
01 Mar - 08 Mar	Aer Lingus
31 Mar - 14 Apr	Aer Lingus
25 Mar - 22 Apr	Aer Lingus
30 Mar - 30 Apr	Iberia
31 Mar - 04 Apr	Aer Lingus
30 Mar - 05 Apr	Aer Lingus
25 Mar - 03 Apr	TAP
14 Mar - 12 Apr	TAP
29 Mar - 05 Apr	Aer Lingus
29 Mar - 12 Apr	Iberia

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 329€

Return flights