Flights from Chicago
Cheap flights from Chicago to Dublin
| From | Chicago (ORD) |
|---|---|
| To | Dublin (DUB) |
| Best season in Ireland | May–Sep |
| Cheapest return fare found | $585 in December 2026 |
Cheapest months to fly Chicago to Dublin
Lowest return fares travellers found in recent searches, updated . Prices change quickly, so check the live fare before you book.
| Month | From | Airline | Check fare |
|---|---|---|---|
| Nov 2026November 2026e.g. 1 Nov–13 Nov | $642 | Icelandair1 stop | Check fare → |
| Dec 2026December 2026Cheapeste.g. 1 Dec–8 Dec | $585 | Frontier Airlines2 stops | Check fare → |
| Jan 2027January 2027e.g. 12 Jan–19 Jan | $606 | Icelandair1 stop | Check fare → |
| Feb 2027February 2027e.g. 20 Feb–24 Feb | $718 | Air Canada1 stop | Check fare → |
| Apr 2027April 2027e.g. 2 Apr–6 Apr | $661 | Icelandair1 stop | Check fare → |
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Frequently asked questions
What is the cheapest month to fly from Chicago to Dublin?
In recent searches, the lowest return fare was in December 2026, from $585. Fares change daily, so check live prices for your dates.
When is the best time to fly from Chicago to Dublin?
Ireland is at its best in May–Sep. For the lowest fares, look at December 2026.
Which airlines fly from Chicago to Dublin?
Recent cheapest fares on this route were with Icelandair, Frontier Airlines, Air Canada.
Which airports serve Chicago to Dublin?
Flights leave from Chicago (ORD) and arrive at Dublin (DUB).
Planning the trip? Read our Ireland guide.