Cheap flights from Ireland to Chicago from £390
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ireland to Chicago
Keep the following information in mind while searching for Ireland to Chicago flight deals. Data was last updated 13 June 2025.
Find flight deals from Ireland to Chicago
Cheapest flights from Ireland to ChicagoExplore the most affordable flight options available from Ireland to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Explore the most affordable flight options available from Ireland to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Ireland to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from Ireland to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
DublinChicago
DUB - ORD
DUBORD
Dublin
Sat 30/8
05:55-15:04
2 stops15h 09m
Chicago O'Hare Intl
Wed 3/9
18:20-15:00
2 stops14h 40m
DublinChicago
DUB - MDW
DUBMDW
Dublin
Wed 27/8
05:55-18:37
2 stops18h 42m
Chicago Midway
Sun 31/8
18:17-10:00
1 stop9h 43m
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 12/8
09:20-14:55
1 stop11h 35m
Chicago O'Hare Intl
Sat 27/9
20:20-09:45
Nonstop7h 25m
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 22/7
09:30-17:50
2 stops14h 20m
Chicago O'Hare Intl
Tue 19/8
21:15-17:05
1 stop13h 50m
DublinChicago
DUB - ORD
DUBORD
Dublin
Mon 11/8
08:55-14:10
1 stop11h 15m
Chicago O'Hare Intl
Tue 30/9
16:20-10:25
1 stop12h 05m
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 15/7
09:30-16:53
1 stop13h 23m
Chicago O'Hare Intl
Wed 13/8
10:26-05:30
1 stop13h 04m
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 12/8
11:35-14:00
Nonstop8h 25m
Chicago O'Hare Intl
Mon 29/9
15:45-05:10
Nonstop7h 25m
DublinChicago
DUB - MDW
DUBMDW
Dublin
Tue 12/8
11:00-17:47
1 stop12h 47m
Chicago Midway
Tue 30/9
13:05-08:45
1 stop13h 40m
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 27/8
20:15-16:10
2 stops25h 55m
Chicago O'Hare Intl
Sun 31/8
19:15-20:20
2 stops19h 05m
DublinChicago
DUB - MDW
DUBMDW
Dublin
Sat 26/7
10:00-18:40
1 stop14h 40m
Chicago Midway
Sat 2/8
13:09-08:15
2 stops13h 06m
Best time to book a flight from Ireland to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Ireland with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ireland to Chicago
What is the cheapest month to book a flight from Ireland to Chicago?
Currently, January is the cheapest month in which you can book a flight from Ireland to Chicago (average of £595). Flying from Ireland to Chicago in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IE to CHI?
Find hourly flight availability from Ireland to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.
A simple way to save on the total cost of your ticket is to fly from Ireland to Chicago in the morning. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight at midday.
Weekly flight availability from Ireland to Chicago
Explore weekly flight availability from Ireland to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 June 2025.
The most flights from IE0 to CHI are scheduled on a Thursday (18 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).
Rainfall in Chicago by month
Plan your trip to Chicago by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.
Temperature in Chicago by month
Plan your trip to Chicago by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated 13 June 2025.
To help decide which airline to fly from Ireland to Chicago, see what other customers have to say about Delta, KLM and Austrian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Overall
Boarding
Food
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Boarding
Food
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Boarding
Food
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Boarding
Food
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Boarding
Food
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Boarding
Food
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Ireland to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Ireland to Chicago
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Ireland to Chicago
Discover the top 6 airlines that operate flights from Ireland to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Ireland to Chicago?
Cheapflights helps you search for flights from Ireland to Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Ireland to Chicago?
Cheapflights simply makes it quick and affordable to book flights from Ireland to Chicago by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Ireland to Chicago with no change fees?
Yes, we can. To see specific flights from Ireland to Chicago with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Ireland to Chicago become cheaper?
Not ready to book yet? You can track prices for flights from Ireland to Chicago on Cheapflights with our Price Alert feature and get notified when better prices are available.