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

Return flights

10 May - 20 May	Air Canada
10 May - 19 May	Air Canada
05 May - 15 May	United
08 May - 15 May	Scandinavian Airlines
12 May - 19 May	Air Canada
04 May - 18 May	Aer Lingus
19 May - 02 Jun	Aer Lingus
20 May - 26 May	Aer Lingus
18 May - 01 Jun	Aer Lingus
20 May - 02 Jun	Aer Lingus
10 May - 09 Jun	SWISS
10 May - 21 May	SWISS
06 May - 27 May	Iberia
16 May - 23 May	Air Canada
25 May - 01 Jun	Aer Lingus
26 May - 02 Jun	Aer Lingus
19 May - 09 Jun	SWISS
12 May - 09 Jun	SWISS
27 May - 03 Jun	TAP
28 May - 04 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 329€

Return flights