Cheapest return flights from Chicago to Barcelona in September from 406€

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

Return flights

20 Sep - 30 Sep Lufthansa direct
23 Sep - 30 Sep United
16 Sep - 25 Sep British Airways
02 Sep - 09 Sep British Airways
16 Sep - 25 Sep Finnair direct
01 Sep - 07 Sep SWISS
28 Sep - 12 Oct Lufthansa
04 Sep - 10 Sep British Airways
28 Sep - 12 Oct Finnair direct
02 Sep - 09 Sep Iberia direct
01 Sep - 07 Sep Iberia direct

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

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