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

Return flights

08 Apr - 15 Apr	Iberia
03 Apr - 08 Apr	Icelandair
01 Apr - 08 Apr	Icelandair
24 Apr - 05 May	Scandinavian Airlines
14 Apr - 21 Apr	Aer Lingus	direct
29 Apr - 06 May	Aer Lingus	direct
29 Apr - 03 May	TAP
05 Apr - 25 Apr	Iberia
29 Apr - 03 May	Aer Lingus	direct
19 Apr - 26 Apr	Aer Lingus	direct
05 Apr - 25 Apr	United	direct
24 Apr - 01 May	Aer Lingus	direct
24 Apr - 05 May	Aer Lingus	direct
02 Apr - 10 Apr	Air Canada
04 Apr - 11 Apr	Air Canada
02 Apr - 11 Apr	Iberia

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 $439

Return flights