Cheapest one-way flights from Chicago to Dublin in September from $280

AirHint found the following cheapest one-way flights from Chicago (ORD) to Dublin (DUB) in September 2026 (see full year).

One-Way flights

13 Sep British Airways
01 Sep SWISS
15 Sep Air Canada
23 Sep Finnair
02 Sep Finnair
06 Sep Finnair
01 Sep Iberia direct
06 Sep Finnair direct
13 Sep Brussels Airlines direct
15 Sep Brussels Airlines direct

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

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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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