Cheapest return ORD–BCN flights, May

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

Return flights

05 May - 13 May Spirit Airlines
05 May - 12 May Air Canada
06 May - 13 May Air Canada
04 May - 14 May Frontier Airlines
05 May - 14 May United
02 May - 27 May Air Canada
04 May - 22 May Aer Lingus
12 May - 19 May Air Canada
04 May - 11 May Iberia
13 May - 20 May Air Canada
25 May - 01 Jun Air Canada
27 May - 03 Jun Air Canada
29 May - 05 Jun Frontier Airlines
17 May - 02 Jun Spirit Airlines
28 May - 04 Jun Air Canada
21 May - 05 Jun Icelandair
26 May - 02 Jun Icelandair
30 May - 06 Jun Air Canada
21 May - 04 Jun Sun Country Airlines
21 May - 07 Jun Icelandair

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

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