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

Return flights

28 May - 04 Jun	Condor
03 May - 17 May	Delta
25 May - 06 Jun	Condor
30 May - 06 Jun	Condor
25 May - 01 Jun	Condor
27 May - 03 Jun	British Airways
26 May - 02 Jun	Alaska Airlines
24 May - 31 May	Icelandair
29 May - 05 Jun	British Airways
31 May - 07 Jun	Icelandair

Also check the deals for one-way flights from Portland 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 Portland to Barcelona in May from 450€

Return flights