HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$435+ Cheap flights from Ireland to Chicago (CHI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ireland to Chicago with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 abril 17, 2025.

Round-trip from

$513
(Icelandair)

One-way from

$441
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$550

Good round-trip deal

$704 or less

Good one-way deal

$543 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. 15% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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

Find 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 abril 17, 2025.

This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/1312:15 pmDUB - ORD
1 stop12h 00mIcelandair
mié. 5/287:25 pmORD - DUB
1 stop11h 50mIcelandair
Deal found 4/16$435
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2912:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
lun. 11/37:20 pmORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 4/16$451
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/239:20 amDUB - ORD
1 stop35h 23mUnited Airlines
dom. 5/2511:23 amORD - DUB
1 stop13h 47mUnited Airlines
Deal found 4/16$514
This Bravofly 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/2311:35 amDUB - ORD
Nonstop8h 25mAer Lingus
mié. 4/309:15 pmORD - DUB
Nonstop7h 25mAer Lingus
Deal found 4/16$515
This TravelUp deal was found by Cheapflights users on 4/17. 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.
jue. 5/1511:00 amDUB - MDW
1 stop12h 43mKLM
lun. 5/261:55 pmMDW - DUB
1 stop12h 00mKLM
Deal found 4/17$516
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/235:55 amDUB - ORD
1 stop14h 15mDelta
lun. 5/261:45 pmORD - DUB
2 stops14h 40mDelta
Deal found 4/16$527
This Mytrip deal was found by Cheapflights users on 4/17. 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.
mar. 5/1312:15 pmDUB - ORD
2 stops25h 12mMultiple Airlines
mié. 5/289:08 pmORD - DUB
2 stops31h 57mMultiple Airlines
Deal found 4/17$528
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/245:55 amDUB - MDW
2 stops18h 25mDelta
jue. 5/15:59 pmMDW - DUB
2 stops15h 01mDelta
Deal found 4/16$528
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/139:50 amDUB - ORD
2 stops16h 21mAir Canada
vie. 9/263:35 pmORD - DUB
1 stop10h 10mAir Canada
Deal found 4/17$535
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/71:45 pmDUB - ORD
Nonstop8h 00mAmerican Airlines
sáb. 9/132:30 pmORD - DUB
1 stop10h 00mAmerican Airlines
Deal found 4/16$539
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/119:30 amSNN - ORD
Nonstop8h 15mUnited Airlines
vie. 9/193:00 pmORD - SNN
1 stop13h 15mUnited Airlines
Deal found 4/17$540
This CheapTickets.ch 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/1312:00 pmDUB - MDW
1 stop11h 45mAir France
mié. 5/281:55 pmMDW - DUB
1 stop12h 00mAir France
Deal found 4/16$541

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 abril 17, 2025.
Use the filters below to find and compare flights from Ireland to Chicago that are best for you.

Fly from

Ireland

Fly to

Chicago

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

dom. 9/14

12:15 pm-9:15 pm

1 stop15h 00m

Chicago O'Hare Intl

dom. 9/28

7:25 pm-1:15 pm

1 stop11h 50m

$513

DublinChicago

DUB - ORD

DUBORD

Dublin

vie. 5/23

12:20 pm-4:10 pm

2 stops33h 50m

Chicago O'Hare Intl

jue. 5/29

7:15 pm-6:15 pm

1 stop17h 00m

$515

DublinChicago

DUB - ORD

DUBORD

Dublin

vie. 5/23

9:20 am-2:43 pm

1 stop35h 23m

Chicago O'Hare Intl

jue. 5/29

8:15 pm-9:45 am

Nonstop7h 30m

$516

DublinChicago

DUB - MDW

DUBMDW

Dublin

jue. 5/15

11:00 am-5:43 pm

1 stop12h 43m

Chicago Midway

lun. 5/26

1:55 pm-7:55 am

1 stop12h 00m

$516

DublinChicago

DUB - ORD

DUBORD

Dublin

sáb. 5/3

8:35 am-3:55 pm

1 stop13h 20m

Chicago O'Hare Intl

sáb. 5/24

9:15 pm-2:25 pm

1 stop11h 10m

$522

DublinChicago

DUB - ORD

DUBORD

Dublin

sáb. 5/10

8:55 am-2:10 pm

1 stop11h 15m

Chicago O'Hare Intl

sáb. 5/17

10:05 am-10:45 am

1 stop18h 40m

$527

DublinChicago

DUB - ORD

DUBORD

Dublin

mar. 9/16

9:20 am-8:00 am

2 stops28h 40m

Chicago O'Hare Intl

mar. 9/30

8:51 am-7:45 am

1 stop16h 54m

$528

DublinChicago

DUB - MDW

DUBMDW

Dublin

mar. 5/13

5:55 am-5:45 pm

2 stops17h 50m

Chicago Midway

mié. 5/28

1:55 pm-7:55 am

1 stop12h 00m

$530

DublinChicago

DUB - ORD

DUBORD

Dublin

mar. 5/13

6:40 pm-12:45 pm

1 stop24h 05m

Chicago O'Hare Intl

mié. 5/28

8:15 pm-9:45 am

Nonstop7h 30m

$531

DublinChicago

DUB - ORD

DUBORD

Dublin

lun. 4/28

11:35 am-2:00 pm

Nonstop8h 25m

Chicago O'Hare Intl

dom. 5/4

3:45 pm-5:10 am

Nonstop7h 25m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 59 results
1
2
3
...
6

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, August is the cheapest month in which you can book a flight from Ireland to Chicago (average of $245). Flying from Ireland to Chicago in March is currently the most expensive (average of $321). 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 abril 17, 2025.

It’s optimal to fly from Ireland to Chicago in the morning. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight at noon.

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 abril 17, 2025.

The most flights from IE0 to CHI 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 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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 abril 17, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Ireland to Chicago by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 $446 on WestJet. Other airlines that offer cheap prices include Aer Lingus from $451 and Icelandair from $461 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: Aer Lingus (88%), American Airlines (82%), British Airways( 82%).

  • What are the cheapest flights from Ireland to Chicago?

    While on average a flight from Ireland to Chicago is generally $1,658, our data shows the cheapest flight currently is $442. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $397 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, August is the cheapest month in which you can book a flight from Ireland to Chicago (average of $245). Flying from Ireland to Chicago in March is currently the most expensive (average of $321). 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 Ireland?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to O'Hare Intl flights
Frankfurt to O'Hare Intl flights
Charles de Gaulle to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Frederic Chopin to Midway flights
Athens to O'Hare Intl flights
Gatwick to O'Hare Intl flights
Orly to O'Hare Intl flights
Heathrow to Midway flights
Madrid to O'Hare Intl flights
Malpensa to O'Hare Intl flights
London City to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Charles de Gaulle to Midway flights
Istanbul to O'Hare Intl flights
Dublin to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Krakow to O'Hare Intl flights
Munich to O'Hare Intl flights
Vienna to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Zurich to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Linate to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Bergamo to O'Hare Intl flights
Frankfurt-Hahn to O'Hare Intl flights
Madrid to Midway flights
Frankfurt to St. Louis flights
Berlin to O'Hare Intl flights
Copenhagen to O'Hare Intl flights
Bruxelles-National to Midway flights
Edinburgh to O'Hare Intl flights
Stansted to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to Midway flights
Istanbul to Midway flights
Oslo Gardermoen to O'Hare Intl flights
Lyon to O'Hare Intl flights
Vicenza to O'Hare Intl flights
Manchester to O'Hare Intl flights
Munich to Midway flights

Top 3 airlines flying from Ireland to Chicago

Discover the top 3 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 abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$401Average$571FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$648Average$745FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.