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

Return flights

15 Apr - 24 Apr	TAP
15 Apr - 09 May	TAP
28 Apr - 05 May	Air Canada
21 Apr - 28 Apr	Air Canada
15 Apr - 24 Apr	Aer Lingus	direct
21 Apr - 28 Apr	Aer Lingus	direct
01 Apr - 30 Apr	Lufthansa
08 Apr - 18 Apr	TAP
13 Apr - 20 Apr	Aer Lingus	direct
23 Apr - 30 Apr	Aer Lingus	direct
17 Apr - 29 Apr	Aer Lingus	direct
14 Apr - 09 May	Air Canada
16 Apr - 26 Apr	Aer Lingus	direct
28 Apr - 05 May	Brussels Airlines	direct
14 Apr - 09 May	Aer Lingus	direct
15 Apr - 09 May	Brussels Airlines	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 370€

Return flights