Cheapest return flights from Washington to Barcelona in May from $532

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

Return flights

22 May - 03 Jun Icelandair
31 May - 13 Jun Icelandair
07 May - 12 May Turkish Airlines
06 May - 13 May Turkish Airlines
02 May - 12 May Scandinavian Airlines
02 May - 16 May TAP
17 May - 23 May TAP
30 May - 15 Jun TAP
06 May - 13 May Lufthansa direct
02 May - 12 May Lufthansa direct
07 May - 12 May Lufthansa direct
17 May - 23 May Lufthansa direct

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

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