Cheapest one-way flights from Chicago to Dublin in March from $218

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

One-Way flights

17 Mar Frontier Airlines
18 Mar Frontier Airlines
24 Mar Frontier Airlines
25 Mar Frontier Airlines
11 Mar Icelandair
20 Mar Spirit Airlines
28 Mar Spirit Airlines
22 Mar TAP
14 Mar Spirit Airlines
08 Mar TAP

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

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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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