AirHint found the following cheapest return flights from Newark (EWR) to Madrid (MAD) in May 2026 (see full year).

Return flights

10 May - 19 May	Aer Lingus
07 May - 14 May	TAP
17 May - 25 May	Aer Lingus
07 May - 16 May	TAP
02 May - 17 May	TAP
06 May - 19 May	British Airways
11 May - 25 May	TAP
05 May - 26 May	British Airways
14 May - 25 May	TAP
14 May - 24 May	TAP
19 May - 03 Jun	TAP
16 May - 02 Jun	Air Canada
20 May - 13 Jun	British Airways
31 May - 07 Jun	TAP
21 May - 01 Jun	TAP
28 May - 07 Jun	TAP
26 May - 02 Jun	TAP
21 May - 13 Jun	TAP
29 May - 07 Jun	Aer Lingus
31 May - 22 Jun	TAP

Also check the deals for one-way flights from Newark to Madrid in May.

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 Madrid in May from $429

Return flights