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

Return flights

19 May - 26 May	jetBlue
09 May - 15 May	Icelandair
02 May - 06 Jun	jetBlue
02 May - 09 May	jetBlue
15 May - 22 May	jetBlue
02 May - 05 Jun	jetBlue
01 May - 09 May	jetBlue
26 May - 01 Jun	Icelandair
14 May - 20 May	Icelandair
07 May - 17 May	Icelandair
01 May - 04 May	Icelandair
14 May - 24 May	Condor
21 May - 28 May	Condor
23 May - 01 Jun	Icelandair
10 May - 07 Jun	Air Canada
22 May - 01 Jun	Icelandair
22 May - 06 Jun	Icelandair
28 May - 08 Jun	British Airways

Also check the deals for one-way flights from Washington 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 Washington to Barcelona in May from 608€

Return flights