Cheapest return flights from Chicago to Barcelona in October from 365€

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

Return flights

27 Oct - 11 Nov KLM
23 Oct - 15 Nov TAP
24 Oct - 15 Nov TAP
27 Oct - 25 Nov Lufthansa
19 Oct - 29 Oct Air Canada
29 Oct - 05 Nov Air Canada
27 Oct - 11 Nov United direct
28 Oct - 04 Nov Spirit Airlines
30 Oct - 06 Nov American Airlines
28 Oct - 22 Nov KLM
29 Oct - 16 Nov Aer Lingus
18 Oct - 22 Oct Aer Lingus
20 Oct - 28 Oct Lufthansa
19 Oct - 29 Oct United direct
17 Oct - 24 Oct United
21 Oct - 28 Oct SWISS
16 Oct - 29 Oct United direct
24 Oct - 28 Oct United
23 Oct - 28 Oct United
18 Oct - 26 Oct Aer Lingus

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

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