Cheap flights from Ireland to Chicago O'Hare Intl Airport from £330
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ireland to O'Hare Intl
Keep the following information in mind while searching for Ireland to O'Hare Intl flight deals. Data was last updated 26 April 2025.
Find flight deals from Ireland to O'Hare Intl
Cheapest flights from Ireland to O'Hare IntlExplore the most affordable flight options available from Ireland to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 April 2025.
Explore the most affordable flight options available from Ireland to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 April 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Ireland to O'Hare Intl 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 26 April 2025.
Use the filters below to find and compare flights from Ireland to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
DublinChicago
DUB - ORD
DUBORD
Dublin
Fri 9/5
09:20-12:32
1 stop33h 12m
Chicago O'Hare Intl
Mon 12/5
20:15-09:45
Nonstop7h 30m
DublinChicago
DUB - ORD
DUBORD
Dublin
Thu 12/6
09:20-14:47
1 stop11h 27m
Chicago O'Hare Intl
Mon 30/6
15:35-07:45
1 stop34h 10m
DublinChicago
DUB - ORD
DUBORD
Dublin
Fri 23/5
12:15-21:15
1 stop15h 00m
Chicago O'Hare Intl
Mon 26/5
19:25-13:15
1 stop11h 50m
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 16/9
08:35-14:50
1 stop12h 15m
Chicago O'Hare Intl
Mon 29/9
16:55-09:40
1 stop10h 45m
DublinChicago
DUB - ORD
DUBORD
Dublin
Fri 9/5
16:40-19:00
Nonstop8h 20m
Chicago O'Hare Intl
Mon 12/5
15:45-05:10
Nonstop7h 25m
DublinChicago
DUB - ORD
DUBORD
Dublin
Thu 22/5
08:55-14:10
1 stop11h 15m
Chicago O'Hare Intl
Thu 29/5
06:24-07:55
1 stop19h 31m
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 10/9
08:30-14:50
1 stop12h 20m
Chicago O'Hare Intl
Wed 1/10
22:20-11:40
Nonstop7h 20m
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 16/9
13:45-15:45
Nonstop8h 00m
Chicago O'Hare Intl
Mon 29/9
22:20-11:40
Nonstop7h 20m
DublinChicago
DUB - ORD
DUBORD
Dublin
Fri 9/5
09:50-18:28
2 stops14h 38m
Chicago O'Hare Intl
Mon 12/5
10:40-08:15
2 stops15h 35m
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
Best time to book a flight from Ireland to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ireland with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ireland to Chicago O'Hare Intl Airport
What is the cheapest month to book a flight from Ireland to Chicago O'Hare Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Ireland to Chicago O'Hare Intl Airport (average of £595). Flying from Ireland to Chicago O'Hare Intl Airport 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 ORD?
Find hourly flight availability from Ireland to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 April 2025.
Unlike at midday, when flights are generally more expensive, you can save up to 5% on flights from Ireland to Chicago O'Hare Intl Airport by exploring options for tickets in the morning.
Weekly flight availability from Ireland to Chicago O'Hare Intl Airport
Explore weekly flight availability from Ireland to O'Hare Intl. 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 26 April 2025.
The most flights from IE0 to ORD are scheduled on a Thursday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).
Rainfall in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 O'Hare Intl Airport when rainfall is around 43.0 mm.
Temperature in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 26 April 2025.
See what other customers who have flown with Delta, KLM and Finnair from Ireland to Chicago have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Crew
Entertainment
Boarding
Comfort
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Crew
Entertainment
Boarding
Comfort
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Crew
Entertainment
Boarding
Comfort
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Crew
Entertainment
Boarding
Comfort
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Crew
Entertainment
Boarding
Comfort
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Crew
Entertainment
Boarding
Comfort
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Ireland to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ireland to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Ireland to O'Hare Intl
Discover the top 8 airlines that operate flights from Ireland to O'Hare Intl. 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 26 April 2025.
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How does Cheapflights help users find flights from Ireland to O'Hare Intl?
When you search for this flight from Ireland to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Ireland to O'Hare Intl?
Cheapflights simply makes it quick and affordable to book flights from Ireland to O'Hare Intl 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 O'Hare Intl with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Ireland to O'Hare Intl, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Ireland to O'Hare Intl become cheaper?
Yes! Start tracking prices for Ireland to O'Hare Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.