Cheapest return flights from Chicago to Barcelona in September from $580

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

Return flights

29 Sep - 06 Oct Delta
26 Sep - 04 Oct Delta
30 Sep - 25 Oct Frontier Airlines
29 Sep - 25 Oct Virgin Atlantic
26 Sep - 28 Sep Delta
28 Sep - 05 Oct Porter Airlines (Canada) Ltd
23 Sep - 30 Sep Air France
24 Sep - 02 Oct Air France
24 Sep - 01 Oct Delta
23 Sep - 18 Oct Air France
24 Sep - 30 Sep Air France
29 Sep - 03 Oct Delta
20 Sep - 24 Sep Porter Airlines (Canada) Ltd
25 Sep - 02 Oct Porter Airlines (Canada) Ltd

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Feel free to contact us with any feedback or request another flight research.