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$320+ Cheap flights from Ireland to Chicago (CHI)

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
May 21 — May 281
Thu 5/21
Thu 5/28
1 adult, Economy
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Cheap flight deals from Ireland to Chicago

Cheapest flights from Ireland to Chicago
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 April 21, 2026.

This Booking.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:30 am
DUB
-
ORD
Nonstop8h 30m
Aer Lingus
Mon 11/307:40 pm
ORD
-
DUB
Nonstop7h 20m
Aer Lingus
Deal found 4/16$581
This Mytrip deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:50 pm
DUB
-
ORD
3 stops33h 25m
Multiple Airlines
Sun 5/177:33 pm
ORD
-
DUB
3 stops32h 37m
Multiple Airlines
Deal found 4/19$585
This deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1910:30 am
DUB
-
ORD
1 stop13h 45m
British Airways
Mon 8/105:00 pm
ORD
-
DUB
1 stop13h 00m
British Airways
Deal found 4/18$587
This deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1910:30 am
DUB
-
ORD
1 stop13h 45m
British Airways
Sun 8/99:15 pm
ORD
-
DUB
1 stop13h 05m
British Airways
Deal found 4/18$588
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:05 pm
DUB
-
ORD
3 stops34h 19m
Multiple Airlines
Mon 5/412:59 pm
ORD
-
DUB
2 stops15h 11m
Multiple Airlines
Deal found 4/16$592
This Gotogate deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:15 pm
DUB
-
ORD
1 stop15h 10m
Icelandair
Sun 9/207:25 pm
ORD
-
DUB
1 stop11h 50m
Icelandair
Deal found 4/18$593
This Gotogate deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:15 pm
DUB
-
ORD
1 stop15h 10m
Icelandair
Mon 9/217:25 pm
ORD
-
DUB
1 stop11h 50m
Icelandair
Deal found 4/18$595
This TravelUp deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:30 am
DUB
-
ORD
Nonstop8h 00m
British Airways
Wed 5/279:15 pm
ORD
-
DUB
1 stop11h 20m
British Airways
Deal found 4/19$597
This lol.travel deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:30 am
DUB
-
ORD
Nonstop8h 00m
Finnair
Thu 5/1410:25 pm
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 4/20$601
This TravelUp deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:30 am
DUB
-
ORD
Nonstop8h 00m
British Airways
Mon 5/257:05 pm
ORD
-
DUB
1 stop10h 55m
British Airways
Deal found 4/19$602
This Ticket deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:00 pm
DUB
-
MDW
1 stop11h 56m
Air France
Tue 6/91:49 pm
MDW
-
DUB
1 stop12h 06m
Air France
Deal found 4/18$641
This KLM deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:10 pm
ORK
-
ORD
1 stop27h 05m
KLM
Mon 5/115:10 pm
ORD
-
ORK
1 stop15h 30m
KLM
Deal found 4/21$661

Find flight deals from Ireland to Chicago

Keep the following information in mind while searching for Ireland to Chicago flight deals. Data was last updated April 21, 2026.

Round-trip from

$585
(Mytrip)

One-way from

$320
(Trip.com)

Popular in

August

Cheapest in

September

Average price

$631

Good round-trip deal

$679 or less

Good one-way deal

$632 or less
From Ireland to Chicago (CHI)
Search Deals
One-way flight from Ireland to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Ireland to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Ireland to Chicago (CHI).
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated April 21, 2026.
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

Cheapest round-trip

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/13

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Tue 5/26

9:15 pm-5:00 pm

1 stop13h 45m

$636

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 6/23

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Mon 6/29

10:20 pm-11:50 am

Nonstop7h 30m

$644

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 5/7

5:10 pm-2:15 pm

1 stop27h 05m

Chicago O'Hare Intl

Mon 5/11

2:00 pm-10:20 am

2 stops14h 20m

$666

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/15

8:55 am-2:15 pm

1 stop11h 20m

Chicago O'Hare Intl

Mon 5/25

5:19 pm-9:15 am

1 stop9h 56m

$667

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/29

5:55 am-6:05 pm

2 stops18h 10m

Chicago O'Hare Intl

Thu 6/4

2:59 pm-8:45 am

1 stop11h 46m

$671

CorkChicago

ORK - MDW

ORKMDW

Cork

Thu 5/7

10:50 am-6:33 pm

2 stops13h 43m

Chicago Midway

Mon 5/11

1:22 pm-10:20 am

2 stops14h 58m

$671

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 5/20

8:55 am-5:56 pm

2 stops15h 01m

Chicago Midway

Wed 6/10

12:45 pm-10:00 am

2 stops15h 15m

$671

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 6/1

5:55 am-2:57 pm

2 stops15h 02m

Chicago O'Hare Intl

Mon 6/8

8:36 am-7:55 am

1 stop17h 19m

$672

DublinChicago

DUB - MDW

DUBMDW

Dublin

Thu 6/11

5:55 am-6:18 pm

2 stops18h 23m

Chicago Midway

Sat 6/20

6:35 pm-10:00 am

1 stop9h 25m

$672

DublinChicago

DUB - MDW

DUBMDW

Dublin

Fri 5/8

5:55 am-5:56 pm

2 stops18h 01m

Chicago Midway

Mon 5/18

9:22 am-9:15 am

1 stop17h 53m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 resultsSorted by cheapest first
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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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, September is the cheapest month in which you can book a flight from Ireland to Chicago (average of $272). Flying from Ireland to Chicago in July is currently the most expensive (average of $524). 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 April 21, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to Chicago as you normally would.

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 April 21, 2026.

The most flights from IE0 to CHI are scheduled on a Monday (13 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (11 on average).

How often are flights from Ireland to Chicago delayed?

About 13% of weekly flights between Ireland and Chicago have experienced delays in the past year, with the average delay time being 138 minutes.

What is the most punctual flight time for Ireland to Chicago flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Chicago flights?

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 8% of flights being delayed.

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 April 21, 2026.
Read through reviews of airlines operating flights from Ireland to Chicago, such as Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,520 reviews

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.6

Boarding

7.4

Comfort

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.3
Good
1,520 reviews
Aer Lingus
7.3
Good
1,520 reviews

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.6

Boarding

7.4

Comfort

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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.

  • How long is the flight from Ireland to Chicago?

    For as low as $644, Finnair can have you in Chicago from Ireland in 8h. The distance between Ireland and Chicago is about 3661 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Ireland to Chicago one-way?

    One-way options have recently been found by users for as low as $316 on Icelandair. Other airlines that offer cheap prices include Finnair from $419 and Aer Lingus from $439 one-way.

  • What are the most popular routes from Ireland to Chicago?

    When deciding which route to take from Ireland to Chicago consider Dublin - Chicago O'Hare Intl, Dublin - Chicago Midway or Shannon - Chicago O'Hare Intl as they are the most popular.

  • What are the most reliable airlines from Ireland to Chicago?

    Before booking your flight to Chicago from Ireland, check out the most reliable airlines to get you to your destination on time: Air Canada (82%), Austrian Airlines (82%), Brussels Airlines( 82%).

  • What are the cheapest flights from Ireland to Chicago?

    While on average a flight from Ireland to Chicago is generally $1,196, our data shows the cheapest flight currently is $550. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $582 for that flight.

  • Can I find deals for flights from Ireland to Chicago that include hotel bookings?

    Yes. In addition to deals on Ireland to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Chicago.

  • Can I find deals for business class flights from Ireland to Chicago?

    Yes. Cheapflights offers flight deals from Ireland to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ireland to Chicago?

    Currently, September is the cheapest month in which you can book a flight from Ireland to Chicago (average of $272). Flying from Ireland to Chicago in July is currently the most expensive (average of $524). 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.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Benton Harbor
Lansing
Merrillville
Hammond
Porter

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Top 2 airlines flying from Ireland to Chicago

Discover the top 2 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 2,558,603 searches. Data last updated April 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$463Average$654FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$479Average$680FlexibilityNo cancel feeOn-time69%

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