Cheapest one-way flights from Chicago to Dublin in May from $251

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

One-Way flights

12 May Icelandair
03 May Icelandair
13 May Icelandair
08 May Icelandair
31 May Icelandair
14 May Icelandair
11 May Frontier Airlines
20 May Frontier Airlines
19 May Frontier Airlines
18 May Frontier Airlines

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

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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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