Cheapest one-way flights from Chicago to Barcelona in September from 263€

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

One-Way flights

20 Sep Aer Lingus
29 Sep Aer Lingus
20 Sep British Airways direct
29 Sep Iberia direct
01 Sep Aer Lingus
04 Sep British Airways
03 Sep Aer Lingus
01 Sep British Airways direct
03 Sep United direct
04 Sep Iberia direct

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

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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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