Cheapest one-way flights from Chicago to Barcelona in May from $321

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

One-Way flights

19 May Spirit Airlines
18 May Spirit Airlines
21 May Scandinavian Airlines
15 May Spirit Airlines
31 May Spirit Airlines
20 May Spirit Airlines
24 May Spirit Airlines
25 May WestJet
30 May WestJet
27 May TAP

Also check the deals for return flights from Chicago to Barcelona in May.

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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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