Cheapest return flights from Chicago (ORD) to Dublin (DUB), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
01 Sep 11 Sep Porter Airlines (Canada) Ltd
16 Sep 23 Sep Air Canada
01 Sep 08 Sep Porter Airlines (Canada) Ltd
19 Sep 26 Sep Air Canada
12 Sep 23 Sep Porter Airlines (Canada) Ltd
14 Sep 21 Sep Porter Airlines (Canada) Ltd
14 Sep 22 Sep Porter Airlines (Canada) Ltd
07 Sep 18 Sep Finnair
07 Sep 18 Sep Aer Lingus
Direct Flight
09 Sep 16 Sep Aer Lingus
Direct Flight
23 Sep 07 Oct Icelandair
24 Sep 07 Oct Icelandair
23 Sep 06 Oct Aer Lingus
Direct Flight
24 Sep 07 Oct Aer Lingus
Direct Flight
24 Sep 01 Oct Aer Lingus
Direct Flight
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deals for one-way flights from Chicago to Dublin in September.

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Updated Jun 7, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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