AirHint found the following cheapest return flights from Chicago (ORD) to Dublin (DUB) in February 2026 (see full year).

Return flights

07 Feb - 14 Feb	Icelandair
05 Feb - 12 Feb	Icelandair
10 Feb - 17 Feb	Icelandair
05 Feb - 19 Feb	Icelandair
08 Feb - 15 Feb	Icelandair
19 Feb - 05 Mar	Icelandair
16 Feb - 02 Mar	Icelandair
14 Feb - 21 Feb	Icelandair
09 Feb - 17 Feb	Icelandair
10 Feb - 17 Feb	Aer Lingus	direct
09 Feb - 17 Feb	Aer Lingus	direct
26 Feb - 21 Mar	Scandinavian Airlines
02 Feb - 16 Feb	Air France
19 Feb - 05 Mar	Aer Lingus	direct
16 Feb - 02 Mar	Aer Lingus	direct
25 Feb - 01 Mar	Aer Lingus	direct
26 Feb - 21 Mar	Brussels Airlines	direct

Also check the deals for one-way flights from Chicago to Dublin in February.

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 Dublin in February from 348€

Return flights