Cheap flights from Ireland to Chicago from $341
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Chicago departing on 10/11. 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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Finnair flights from Ireland to Chicago
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United Airlines flights from Ireland to Chicago
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How to get the cheapest flight ticket from Ireland to Chicago
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 Chicago?
The month of November is, on average, the cheapest month to fly to Chicago from Ireland, with most prices found around $509. If you’re not able to fly to Chicago in November, then September is your next best option. Flight prices from Ireland to Chicago during September average around $519.
What is the cheapest day to depart on your flight to Chicago?
The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $691. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to Chicago for around $828.
What is the cheapest time of day to depart on your flight to Chicago?
Our most recent data shows that the best time of day to fly to Chicago is in the morning. Flights from Ireland to Chicago during this time can be as low as $748. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $827.
What is the cheapest Ireland to Chicago flight route?
Fly from Dublin to Chicago O'Hare Intl for the best Ireland - Chicago flight prices
How far in advance should I book a flight to Chicago?
You are more likely to see cheaper flights to Chicago from Ireland when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $600 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Ireland for as low as $488 on momondo.
What cabin class options are available on Ireland to Chicago flights?
There are 3 cabin classes available to choose from on Ireland to Chicago 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 Ireland to Chicago on average per day?
As of June 2025, there are 18 flights per day flying from Ireland to Chicago. The most common time of day flights depart is 11:00AM, with 51% of flights taking off at noon.
How many flights depart from Ireland to Chicago on average per week?
130 flights are operational weekly from Ireland to Chicago as of June 2025. The most popular departure day for this route is Thu, with 15% of flights per week taking off on this day.
Cheap Ireland to Chicago flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Chicago
When did momondo last update prices for flights from Ireland to Chicago?
Prices for flights from Ireland to Chicago are updated daily.
How many operators does momondo search for flights from Ireland to Chicago?
As of June 2025, there are 2 operators available to choose from for flights from Ireland to Chicago.
How old do you have to be to fly from Ireland to Chicago?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Chicago.
What documentation or ID do you need to fly to Chicago?
The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ireland to Chicago?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Chicago is Boeing 787-8 Dreamliner, representing 34.88% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 23.16%, Airbus A330-300 at 19.99%, and Airbus A330 at 8.63%.
Best airlines flying from Ireland to Chicago
Compare and see reviews for airlines that fly from Ireland to Chicago with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $408 | Free Cancellation | Rating 7.1 1,118 reviews | |||
| PriceFrom $667 | Free Cancellation | Rating 7.4 8,801 reviews |
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ireland to Chicago?
Finding the right flight to Chicago from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.
Can I find flights from Ireland to Chicago with flexible booking policies on momondo?
momondo does allow users to show only those flights to Chicago from Ireland which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Ireland to Chicago?
Once all potential Ireland to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Ireland to Chicago right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Chicago from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.