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

Return flights

04 Mar - 12 Mar	Air Canada
11 Mar - 18 Mar	SWISS
02 Mar - 16 Mar	Air Canada
05 Mar - 19 Mar	TAP
18 Mar - 22 Apr	United
06 Mar - 10 Mar	TAP
09 Mar - 22 Mar	Air Canada
04 Mar - 20 Mar	United
31 Mar - 20 Apr	Icelandair
27 Mar - 02 Apr	Air Canada
31 Mar - 20 Apr	United	direct
31 Mar - 12 Apr	United
30 Mar - 05 Apr	TAP
27 Mar - 03 Apr	United
12 Mar - 21 Mar	SWISS
28 Mar - 05 Apr	Air Canada
27 Mar - 05 Apr	TAP
27 Mar - 05 Apr	United	direct

Also check the deals for one-way flights from Newark to Barcelona 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 Barcelona in March from $334

Return flights