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

Return flights

06 Apr - 22 Apr	Icelandair
01 Apr - 09 Apr	Air Canada
03 Apr - 10 Apr	SWISS
04 Apr - 13 Apr	Air Canada
02 Apr - 10 Apr	Air Canada
16 Apr - 23 Apr	Aer Lingus	direct
24 Apr - 05 May	United
16 Apr - 26 Apr	Aer Lingus	direct
02 Apr - 11 Apr	United
06 Apr - 22 Apr	Aer Lingus	direct
26 Apr - 03 May	Aer Lingus
01 Apr - 09 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 $359

Return flights