Cheapest one-way flights from Chicago to Dublin in September from $306

Best time to book flights for Chicago (ORD) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest one-way flights from Chicago (ORD) to Dublin (DUB) in September 2025 (see full year).

One-Way flights

23 Sep Icelandair
24 Sep Icelandair
18 Sep jetBlue
08 Sep Icelandair
15 Sep Icelandair
16 Sep Icelandair
24 Sep Aer Lingus direct
15 Sep Aer Lingus direct
23 Sep Aer Lingus direct
08 Sep Iberia direct

Also check the deals for return flights from Chicago to Dublin in September.

Skyscanner

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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