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

Return flights

24 Apr - 01 May	Scandinavian Airlines
05 Apr - 12 Apr	Icelandair
04 Apr - 11 Apr	TAP
03 Apr - 11 Apr	TAP
26 Apr - 10 May	Icelandair
06 Apr - 13 Apr	Air Canada
07 Apr - 16 Apr	United
13 Apr - 20 Apr	Aer Lingus	direct
23 Apr - 30 Apr	Aer Lingus	direct
03 Apr - 10 Apr	United
23 Apr - 07 May	United
26 Apr - 10 May	Aer Lingus	direct
24 Apr - 01 May	Aer Lingus	direct
23 Apr - 07 May	Aer Lingus	direct
04 Apr - 11 Apr	Aer Lingus	direct
03 Apr - 11 Apr	Aer Lingus	direct

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

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 April from 331€

Return flights