€224 Find Cheap Flights from Chicago to Ireland

The cheapest ticket to Ireland from Chicago found in the last 72 hours was to Shannon, at €936 return. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Shannon (SNN), and the cheapest round-trip airline ticket found on this route in the last 5 days was €936.

The cheapest time of day to fly to Ireland is generally in the evening, when retur flights cost €652 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally at night, which is peak travel time and where the average cost of a ticket is €712.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €841 on average.

The cheapest month for flights from Chicago to Ireland is February, when tickets cost €294 (return) on average. On the other hand, the most expensive months are November and June, when the average cost of return tickets is €1,760 and €799 respectively.

When flying from Chicago to Ireland, you should consider leaving on a Thursday and avoid Wednesdays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

To get a below-average price on a flight from Chicago to Ireland, you should book around 4 weeks before departure, which saves you about 35% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

There is just one airline that flies from Chicago to Ireland direct and that is Aer Lingus. The best return deal found from Aer Lingus for the route is to Dublin (DUB) and costs €305.

American Airlines connects Chicago to Ireland with 21 flights per week. British Airways also offers 21 flights per week, while Aer Lingus follows with 21 flights per week.

The duration of a flight to Ireland depends on your arrival airport. The shortest routes to Ireland from Chicago are to Dublin, which takes 8h 19m, Donegal, which takes 11h 00m, and Shannon, which takes 11h 34m.

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Chicago to Ireland departs at 15:45, landing in Dublin at 05:10.

If you prefer to fly at night, the last flight from Chicago to Ireland sets off at 22:20 and lands in Dublin at 11:50.