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$361+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Ireland to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Ireland (IE0) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Round-trip from

$405
(Trip.com)

Popular in

July

Cheapest in

November

Average price

$552

Good round-trip deal

$559 or less

Good one-way deal

$435 or less
From Ireland to Chicago (CHI)
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Highest demand for flights based on searches. 18% potential increase in price ($126 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 January 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 January 30, 2025.

This Trip.com deal was found by Cheapflights users on 1/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/110:20 amDUB - ORD
1 stop13h 30mScandinavian Airlines
Sun 3/98:55 pmORD - DUB
1 stop16h 25mScandinavian Airlines
Deal found 1/29$405
This Finnair deal was found by Cheapflights users on 1/29. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/51:45 pmDUB - ORD
Nonstop8h 00mMultiple Airlines
Mon 9/158:40 pmORD - DUB
1 stop12h 00mMultiple Airlines
Deal found 1/29$413
This Booking.com deal was found by Cheapflights users on 1/28. 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.
Mon 2/108:40 amDUB - ORD
1 stop12h 05mBritish Airways
Mon 2/175:00 pmORD - DUB
1 stop10h 50mBritish Airways
Deal found 1/28$425
This Mytrip deal was found by Cheapflights users on 1/29. 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.
Thu 3/611:30 amDUB - ORD
1 stop11h 50mIcelandair
Mon 3/107:30 pmORD - DUB
1 stop9h 45mIcelandair
Deal found 1/29$426
This Finnair deal was found by Cheapflights users on 1/29. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:45 pmDUB - ORD
Nonstop8h 00mFinnair
Mon 9/1510:20 pmORD - DUB
Nonstop7h 20mFinnair
Deal found 1/29$428
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 3/282:05 pmDUB - ORD
1 stop13h 42mAmerican Airlines
Sat 4/54:55 pmORD - DUB
1 stop10h 40mAmerican Airlines
Deal found 1/29$429
This TravelUp deal was found by Cheapflights users on 1/29. 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.
Fri 2/285:55 amDUB - ORD
1 stop14h 35mKLM
Sun 3/95:25 pmORD - DUB
1 stop18h 15mKLM
Deal found 1/29$457
This Travelocity deal was found by Cheapflights users on 1/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1810:55 amDUB - ORD
1 stop33h 35mIberia
Tue 2/255:18 pmORD - DUB
1 stop9h 22mIberia
Deal found 1/28$458
This oojo deal was found by Cheapflights users on 1/29. 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 2/14:55 pmDUB - ORD
1 stop28h 35mTAP AIR PORTUGAL
Wed 2/197:15 pmORD - DUB
1 stop22h 05mTAP AIR PORTUGAL
Deal found 1/29$470
This Delta deal was found by Cheapflights users on 1/29. 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.
Wed 3/55:55 amDUB - ORD
1 stop14h 35mDelta
Tue 3/116:20 pmORD - DUB
1 stop16h 20mDelta
Deal found 1/29$478
This Delta deal was found by Cheapflights users on 1/30. 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.
Thu 3/65:55 amDUB - MDW
2 stops18h 16mDelta
Mon 3/106:42 pmMDW - DUB
2 stops15h 58mDelta
Deal found 1/30$484
This KLM deal was found by Cheapflights users on 1/30. 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 2/176:00 amORK - ORD
1 stop14h 30mKLM
Mon 2/244:25 pmORD - ORK
1 stop14h 30mKLM
Deal found 1/30$487

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 3/1

10:20 am-5:50 pm

1 stop13h 30m

Chicago O'Hare Intl

Sun 3/9

8:55 pm-6:20 pm

1 stop16h 25m

$405

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 2/10

8:40 am-2:45 pm

1 stop12h 05m

Chicago O'Hare Intl

Mon 2/17

5:00 pm-9:50 am

1 stop10h 50m

$425

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 3/6

11:30 am-5:20 pm

1 stop11h 50m

Chicago O'Hare Intl

Mon 3/10

7:30 pm-10:15 am

1 stop9h 45m

$426

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 3/28

2:05 pm-10:47 pm

1 stop13h 42m

Chicago O'Hare Intl

Sat 4/5

4:55 pm-9:35 am

1 stop10h 40m

$429

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 2/11

10:55 am-6:45 pm

1 stop13h 50m

Chicago O'Hare Intl

Tue 2/18

2:55 pm-8:40 am

1 stop11h 45m

$434

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 2/28

5:55 am-2:30 pm

1 stop14h 35m

Chicago O'Hare Intl

Sun 3/9

5:25 pm-4:40 pm

1 stop18h 15m

$457

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 2/18

10:55 am-2:30 pm

1 stop33h 35m

Chicago O'Hare Intl

Tue 2/25

5:18 pm-8:40 am

1 stop9h 22m

$458

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 3/5

5:55 am-2:30 pm

1 stop14h 35m

Chicago O'Hare Intl

Tue 3/11

5:00 pm-3:40 pm

2 stops17h 40m

$478

DublinChicago

DUB - MDW

DUBMDW

Dublin

Thu 3/6

5:55 am-6:11 pm

2 stops18h 16m

Chicago Midway

Mon 3/10

6:42 pm-3:40 pm

2 stops15h 58m

$484

CorkChicago

ORK - ORD

ORKORD

Cork

Mon 2/17

6:00 am-2:30 pm

1 stop14h 30m

Chicago O'Hare Intl

Mon 2/24

4:25 pm-12:55 pm

1 stop14h 30m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 55 results
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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 $325). 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 January 30, 2025.

It’s optimal to fly from Ireland to Chicago at noon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the morning.

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 January 30, 2025.

The most flights from IE0 to CHI are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 January 30, 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
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

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
8,450 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

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
1,335 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

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
1,285 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

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
1,584 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

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
1,475 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

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 $420 on Aer Lingus. Other airlines that offer cheap prices include Icelandair from $421 and TAP AIR PORTUGAL from $423 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 (65%), Aer Lingus (65%), British Airways( 65%).

  • What are the cheapest flights from Ireland to Chicago?

    While on average a flight from Ireland to Chicago is generally $1,237, our data shows the cheapest flight currently is $359. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $381 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 $325). 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
Charles de Gaulle to O'Hare Intl flights
Frankfurt to O'Hare Intl flights
Madrid to O'Hare Intl flights
Orly to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Krakow to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Zurich to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Vienna to O'Hare Intl flights
Heathrow to Midway flights
Athens to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Frederic Chopin to Midway flights
Munich to O'Hare Intl flights
Malpensa to O'Hare Intl flights
Charles de Gaulle to Midway flights
Barcelona-El Prat to Midway flights
Dublin to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Frankfurt-Hahn to O'Hare Intl flights
Duesseldorf Intl to O'Hare Intl flights
Sofia to O'Hare Intl flights
Frankfurt to St. Louis flights
Copenhagen to O'Hare Intl flights
Berlin to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to Midway flights
Madrid to Midway flights
Bruxelles-National to Midway flights
Bergamo to O'Hare Intl flights
Prague to O'Hare Intl flights
Amsterdam to Midway flights
Belgrade to O'Hare Intl flights
Vicenza to O'Hare Intl flights
Linate to O'Hare Intl flights
Duesseldorf Intl to Midway flights
Stansted to O'Hare Intl flights

Top 4 airlines flying from Ireland to Chicago

Discover the top 4 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$399Average$558FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$412Average$525FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$549Average$750FlexibilityNo cancel feeOn-time69%
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