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

Return flights

04 Mar - 10 Mar	Icelandair
01 Mar - 11 Mar	TAP
01 Mar - 10 Mar	TAP
04 Mar - 11 Mar	TAP
01 Mar - 08 Mar	TAP
04 Mar - 08 Mar	TAP
01 Mar - 13 Mar	TAP
17 Mar - 25 Mar	Lufthansa
08 Mar - 18 Mar	Lufthansa
08 Mar - 17 Mar	Lufthansa
24 Mar - 01 Apr	Lufthansa
29 Mar - 14 Apr	British Airways
25 Mar - 02 Apr	British Airways
25 Mar - 10 Apr	Delta
28 Mar - 07 Apr	Air Canada
29 Mar - 18 Apr	Icelandair
28 Mar - 06 Apr	Air Canada
28 Mar - 13 Apr	Scandinavian Airlines
29 Mar - 14 Apr	Iberia	direct
26 Mar - 07 Apr	American Airlines

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

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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Cheapest return flights from Chicago to Barcelona in March from $366

Return flights