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

Return flights

08 May - 11 May	Icelandair
05 May - 12 May	TAP
07 May - 13 May	Icelandair
01 May - 08 May	Icelandair
20 May - 26 May	Air Canada
09 May - 26 May	Air Canada
19 May - 25 May	Aer Lingus
20 May - 24 May	Air Canada
19 May - 24 May	Air Canada
16 May - 30 May	TAP
27 May - 03 Jun	TAP
23 May - 01 Jun	TAP
22 May - 01 Jun	TAP
28 May - 13 Jun	TAP

Also check the deals for one-way flights from Newark to Barcelona 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 Barcelona in May from $365

Return flights