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

Return flights

17 Apr - 24 Apr	Scandinavian Airlines
01 Apr - 14 Apr	TAP
22 Apr - 29 Apr	Aer Lingus	direct
14 Apr - 21 Apr	Aer Lingus	direct
01 Apr - 08 Apr	United
26 Apr - 06 May	Finnair
10 Apr - 17 Apr	Icelandair
22 Apr - 06 May	Delta
26 Apr - 03 May	Icelandair
06 Apr - 13 Apr	KLM
15 Apr - 25 Apr	Aer Lingus	direct
14 Apr - 25 Apr	Aer Lingus	direct
17 Apr - 24 Apr	Aer Lingus	direct
30 Apr - 07 May	British Airways
26 Apr - 03 May	Aer Lingus	direct
26 Apr - 06 May	Aer Lingus	direct
30 Apr - 07 May	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 385€

Return flights