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$374+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
Mar 9 — Mar 161
Sun 3/9
Sun 3/16
1 adult, Economy
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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 March 4, 2025.

Round-trip from

$425
(Kiwi.com)

One-way from

$374
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$535

Good round-trip deal

$607 or less

Good one-way deal

$493 or less
From Ireland to Chicago (CHI)
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One-way flight from Ireland to Chicago (CHI)
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Highest demand for flights based on searches. 17% potential increase in price ($118 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Ireland to Chicago (CHI).
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Price to beat on a one-way flight from Ireland to Chicago (CHI).
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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 March 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/297:05 pmDUB - ORD
1 stop27h 05mScandinavian Airlines
Sun 6/17:15 pmORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 3/3$425
This Mytrip deal was found by Cheapflights users on 3/2. 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.
Mon 4/711:35 amDUB - ORD
3 stops32h 13mMultiple Airlines
Wed 4/97:47 pmORD - DUB
3 stops32h 48mMultiple Airlines
Deal found 3/2$443
This SWISS deal was found by Cheapflights users on 3/4. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/412:55 pmDUB - ORD
1 stop33h 20mSWISS
Tue 3/118:05 pmORD - DUB
1 stop35h 00mSWISS
Deal found 3/4$466
This TravelUp deal was found by Cheapflights users on 3/3. 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 4/212:45 pmDUB - ORD
1 stop11h 30mBritish Airways
Tue 4/84:55 pmORD - DUB
1 stop10h 55mBritish Airways
Deal found 3/3$474
This oojo deal was found by Cheapflights users on 3/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/302:15 pmDUB - ORD
1 stop13h 00mIcelandair
Wed 9/310:15 pmORD - DUB
1 stop30h 50mIcelandair
Deal found 3/3$485
This Delta deal was found by Cheapflights users on 3/3. 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.
Mon 3/105:55 amDUB - ORD
1 stop14h 35mDelta
Tue 3/186:15 pmORD - DUB
2 stops16h 25mDelta
Deal found 3/3$497
This KLM deal was found by Cheapflights users on 3/3. 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.
Mon 3/178:50 amDUB - ORD
1 stop11h 40mKLM
Mon 3/242:40 pmORD - DUB
1 stop12h 45mKLM
Deal found 3/3$501
This Delta deal was found by Cheapflights users on 3/3. 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.
Mon 3/105:55 amDUB - MDW
2 stops17h 07mDelta
Tue 3/186:42 pmMDW - DUB
2 stops17h 28mDelta
Deal found 3/3$503
This Air France deal was found by Cheapflights users on 3/3. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/36:00 amORK - ORD
1 stop14h 10mMultiple Airlines
Mon 4/75:10 pmORD - ORK
1 stop15h 30mMultiple Airlines
Deal found 3/3$507
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Mon 3/319:30 amDUB - ORD
1 stop13h 58mAmerican Airlines
Sun 4/610:28 amORD - DUB
1 stop13h 02mAmerican Airlines
Deal found 3/3$519
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Fri 11/79:00 amDUB - ORD
1 stop31h 58mUnited Airlines
Wed 11/1210:00 amORD - DUB
2 stops15h 00mUnited Airlines
Deal found 3/3$526
This oojo deal was found by Cheapflights users on 3/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/43:20 pmDUB - ORD
Nonstop8h 35mAer Lingus
Tue 3/114:55 pmORD - DUB
Nonstop7h 20mAer Lingus
Deal found 3/4$530

Find flights from Ireland to Chicago within your budget

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 March 4, 2025.

Fly from

Ireland

Fly to

Chicago

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/29

7:05 pm-4:10 pm

1 stop27h 05m

Chicago O'Hare Intl

Sun 6/1

7:15 pm-6:15 pm

1 stop17h 00m

$425

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 4/7

11:35 am-1:48 pm

3 stops32h 13m

Chicago O'Hare Intl

Wed 4/9

7:47 pm-10:35 am

3 stops32h 48m

$443

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 4/2

12:45 pm-6:15 pm

1 stop11h 30m

Chicago O'Hare Intl

Tue 4/8

4:55 pm-9:50 am

1 stop10h 55m

$474

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 8/30

2:15 pm-9:15 pm

1 stop13h 00m

Chicago O'Hare Intl

Wed 9/3

10:15 pm-11:05 am

1 stop30h 50m

$485

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/17

8:50 am-3:30 pm

1 stop11h 40m

Chicago O'Hare Intl

Mon 3/24

5:00 pm-3:40 pm

2 stops17h 40m

$497

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/17

8:50 am-3:30 pm

1 stop11h 40m

Chicago O'Hare Intl

Mon 3/24

2:40 pm-8:25 am

1 stop12h 45m

$501

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 3/26

5:55 am-6:02 pm

2 stops17h 07m

Chicago Midway

Mon 3/31

9:54 am-8:45 am

1 stop16h 51m

$506

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 4/3

6:00 am-2:10 pm

1 stop14h 10m

Chicago O'Hare Intl

Wed 4/9

5:10 pm-2:40 pm

1 stop15h 30m

$507

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/31

9:30 am-5:28 pm

1 stop13h 58m

Chicago O'Hare Intl

Sun 4/6

10:28 am-5:30 am

1 stop13h 02m

$519

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 4/11

4:40 pm-7:00 pm

Nonstop8h 20m

Chicago O'Hare Intl

Sun 4/27

3:45 pm-5:10 am

Nonstop7h 25m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 59 results
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2
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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.

Travel insights for flights from Ireland to Chicago

Get recent, data-driven insights about flights from Ireland to Chicago including ideal travel times, pricing trends, and more.

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 $326). 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 March 4, 2025.

It’s optimal to fly from Ireland to Chicago at noon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the morning.

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 March 4, 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
8,061 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
8,061 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
1,321 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
1,271 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
1,560 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
7.4
Good
1,434 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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 $413 on Scandinavian Airlines. Other airlines that offer cheap prices include Aer Lingus from $422 and TAP AIR PORTUGAL from $428 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: American Airlines (91%), Aer Lingus (91%), British Airways( 91%).

  • What are the cheapest flights from Ireland to Chicago?

    While on average a flight from Ireland to Chicago is generally $1,302, our data shows the cheapest flight currently is $421. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $361 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 $326). 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
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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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.
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
Madrid to O'Hare Intl flights
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Athens to O'Hare Intl flights
Krakow to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Gatwick to O'Hare Intl flights
Heathrow to Midway flights
Malpensa to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Vienna to O'Hare Intl flights
London City to O'Hare Intl flights
Munich to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Zurich to O'Hare Intl flights
Dublin to O'Hare Intl flights
Charles de Gaulle to Midway flights
Linate to O'Hare Intl flights
Madrid to Midway flights
Barcelona-El Prat to Midway flights
Frankfurt to St. Louis flights
Frankfurt-Hahn to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Modlin to O'Hare Intl flights
Bruxelles-National to Midway flights
Bergamo to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Copenhagen to O'Hare Intl flights
Duesseldorf Intl to O'Hare Intl flights
Otopeni Intl to O'Hare Intl flights
Berlin to O'Hare Intl flights
Stansted to O'Hare Intl flights
Budapest to O'Hare Intl flights
Belgrade to O'Hare Intl flights
Amsterdam to Midway flights
Leonardo da Vinci/Fiumicino to Midway flights
Munich to Midway flights
Duesseldorf Intl to Midway flights
Luton to O'Hare Intl 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 March 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$399Average$561FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$549Average$728FlexibilityNo cancel feeOn-time69%
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