Cheapest one-way flights from Chicago to Barcelona in May from 365€

Best time to book flights for Chicago (MDW) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest one-way flights from Chicago (MDW) to Barcelona (BCN) in May 2025 (see full year).

One-Way flights

18 May Frontier Airlines
29 May Porter Airlines (Canada) Ltd
21 May Porter Airlines (Canada) Ltd
28 May Porter Airlines (Canada) Ltd
22 May Porter Airlines (Canada) Ltd
23 May Frontier Airlines

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

Skyscanner

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona