Cheapest return flights from Chicago to Barcelona in September from 522€

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

AirHint found the following cheapest return flights from Chicago (ORD) to Barcelona (BCN) in September 2025 (see full year).

Return flights

26 Sep - 08 Oct TAP
08 Sep - 15 Sep Turkish Airlines
22 Sep - 29 Sep Turkish Airlines
10 Sep - 17 Sep Turkish Airlines
17 Sep - 09 Oct Turkish Airlines
13 Sep - 21 Sep Turkish Airlines
11 Sep - 21 Sep Turkish Airlines
14 Sep - 21 Sep TAP
07 Sep - 11 Sep TAP
01 Sep - 11 Sep TAP
10 Sep - 17 Sep United direct
01 Sep - 11 Sep United direct
26 Sep - 08 Oct United direct
17 Sep - 09 Oct Finnair direct

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

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.

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