Cheap flights from Chicago to Ireland from €180
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Ireland departing on 14/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Chicago to Ireland
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Ireland?
The month of January is another great option to travel to Ireland, with average flight prices from Chicago averaging around €468.
What is the cheapest day to depart on your flight to Ireland?
The cheapest day to depart on your flight to Ireland is on a Wednesday when prices can be found for as low as €620. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €728. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.
What is the cheapest time of day to depart on your flight to Ireland?
In the evening is the cheapest time of day to fly from Chicago to Ireland when you can find flight prices for as low as €620. Flying to Ireland in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is at midday when prices are around €773.
What is the cheapest Chicago to Ireland flight route?
Fly from Chicago O'Hare Intl to Dublin for the best Chicago - Ireland flight prices
How far in advance should I book a flight to Ireland?
You are more likely to see cheaper flights to Ireland from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €588 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Chicago for as low as €538 on momondo.
What cabin class options are available on Chicago to Ireland flights?
There are 1 cabin classes available to choose from on Chicago to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Chicago to Ireland on average per day?
The number of flights available between Chicago and Ireland is 18 per day as of July 2025. The most frequent departure time is 22:00, with 83% of daily flights leaving in the evening.
How many flights depart from Chicago to Ireland on average per week?
126 flights are operational weekly from Chicago to Ireland as of July 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
Cheap Chicago to Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Ireland
When did momondo last update prices for flights from Chicago to Ireland?
Prices for flights from Chicago to Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from Chicago to Ireland?
The number of operators available for flights from Chicago to Ireland is 1 as of July 2025.
How old do you have to be to fly from Chicago to Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Chicago to Ireland?
momondo data reveals that the most frequently booked plane model on the route from Chicago to Ireland is Boeing 787-8 Dreamliner, representing 46.29% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 16.04%, Airbus A330 at 10.80%, and Boeing 787-9 Dreamliner at 5.95%.
Best airlines flying from Chicago to Ireland
Compare and see reviews for airlines that fly from Chicago to Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €450 | Free Cancellation | Rating 7.1 1,148 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Ireland?
It is quick and easy to find Chicago to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.
Can I find flights from Chicago to Ireland with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Chicago to Ireland flights to just show those with flexible booking policies.
How can momondo help me find flights from Chicago to Ireland?
Once you have performed a search for Chicago to Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Chicago to Ireland right now. Can momondo alert me if prices change?
Price alerts on flights to Ireland from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.