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$295+ 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
Apr 27 — May 41
Mon 4/27
Mon 5/4
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 March 28, 2026.

This deal was found by Cheapflights users on 3/25. 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.
Wed 4/1512:15 pm
DUB
-
ORD
1 stop12h 00m
Icelandair
Sat 4/187:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Deal found 3/25$489
This Trip.com deal was found by Cheapflights users on 3/24. 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.
Thu 5/147:05 pm
DUB
-
ORD
1 stop27h 05m
Scandinavian Airlines
Thu 5/287:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Deal found 3/24$502
This deal was found by Cheapflights users on 3/25. 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.
Thu 5/212:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Tue 6/27:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Deal found 3/25$503
This oojo deal was found by Cheapflights users on 3/23. 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.
Thu 10/17:05 pm
DUB
-
ORD
1 stop27h 05m
Scandinavian Airlines
Mon 10/57:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Deal found 3/23$510
This Gotogate deal was found by Cheapflights users on 3/26. 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.
Thu 10/2911:30 am
DUB
-
ORD
1 stop11h 50m
Icelandair
Mon 11/26:30 pm
ORD
-
DUB
1 stop9h 45m
Icelandair
Deal found 3/26$514
This Icelandair deal was found by Cheapflights users on 3/27. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:30 am
DUB
-
ORD
1 stop11h 50m
Icelandair
Mon 11/166:30 pm
ORD
-
DUB
1 stop9h 45m
Icelandair
Deal found 3/27$515
This Icelandair deal was found by Cheapflights users on 3/24. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:30 am
DUB
-
ORD
1 stop11h 50m
Icelandair
Tue 11/176:30 pm
ORD
-
DUB
1 stop9h 45m
Icelandair
Deal found 3/24$518
This Icelandair deal was found by Cheapflights users on 3/24. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:30 am
DUB
-
ORD
1 stop11h 50m
Icelandair
Mon 11/96:30 pm
ORD
-
DUB
1 stop9h 45m
Icelandair
Deal found 3/24$519
This SmartFares deal was found by Cheapflights users on 3/26. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:05 pm
DUB
-
ORD
1 stop27h 05m
Scandinavian Airlines
Sun 10/258:20 pm
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Deal found 3/26$525
This oojo deal was found by Cheapflights users on 3/23. 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.
Sun 11/2210:55 am
DUB
-
ORD
2 stops35h 50m
Scandinavian Airlines
Sun 11/297:20 pm
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Deal found 3/23$529
This Ticket deal was found by Cheapflights users on 3/25. 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.
Fri 5/812:00 pm
DUB
-
MDW
1 stop11h 56m
Multiple Airlines
Sun 5/176:36 pm
MDW
-
DUB
1 stop9h 24m
Multiple Airlines
Deal found 3/25$650
This Delta deal was found by Cheapflights users on 3/27. 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.
Sat 4/46:15 am
ORK
-
ORD
1 stop14h 00m
Delta
Wed 4/85:40 pm
ORD
-
ORK
2 stops15h 00m
Delta
Deal found 3/27$655

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 March 28, 2026.

Round-trip from

$489

One-way from

$295
(SmartFares)

Popular in

August

Cheapest in

September

Average price

$631

Good round-trip deal

$646 or less

Good one-way deal

$586 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. 5% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 28, 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

Fri 5/15

9:40 am-5:50 pm

1 stop14h 10m

Chicago O'Hare Intl

Mon 5/25

10:20 pm-11:50 am

Nonstop7h 30m

$637

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 5/16

8:15 pm-2:55 pm

1 stop24h 40m

Chicago O'Hare Intl

Mon 5/25

10:20 pm-11:50 am

Nonstop7h 30m

$649

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 4/9

6:15 am-2:15 pm

1 stop14h 00m

Chicago O'Hare Intl

Tue 4/14

5:10 pm-2:40 pm

1 stop15h 30m

$656

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 4/18

8:55 am-2:15 pm

1 stop11h 20m

Chicago O'Hare Intl

Wed 4/22

1:36 pm-10:25 am

2 stops14h 49m

$661

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/8

5:55 am-2:15 pm

1 stop14h 20m

Chicago O'Hare Intl

Tue 5/12

7:00 pm-4:40 pm

2 stops15h 40m

$661

CorkChicago

ORK - MDW

ORKMDW

Cork

Thu 4/9

6:15 am-5:54 pm

2 stops17h 39m

Chicago Midway

Tue 4/14

1:24 pm-2:40 pm

2 stops19h 16m

$661

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

$662

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/20

5:55 am-2:30 pm

1 stop14h 35m

Chicago O'Hare Intl

Fri 5/29

9:25 am-9:15 am

1 stop17h 50m

$663

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 5/19

10:40 am-8:53 pm

1 stop16h 13m

Chicago O'Hare Intl

Sat 5/23

10:45 am-9:00 am

1 stop16h 15m

$665

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 4/16

5:55 am-4:18 pm

2 stops16h 23m

Chicago O'Hare Intl

Mon 4/20

5:04 pm-3:25 pm

2 stops16h 21m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 60 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Ireland to Chicago (average of $414). Flying from Ireland to Chicago in July is currently the most expensive (average of $638). 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 28, 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.

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 137 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 March 28, 2026.
Read through reviews of airlines operating flights from Ireland to Chicago, such as United Airlines and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,501 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,501 reviews
United Airlines
7.4
Good
9,501 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Aer Lingus
7.2
Good
1,491 reviews
United Airlines
7.4
Good
9,501 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 $656, Finnair can have you in Chicago from Ireland in 14h. The distance between Ireland and Chicago is about 3617 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 $438 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 (88%), Austrian Airlines (88%), Brussels Airlines( 88%).

  • What are the cheapest flights from Ireland to Chicago?

    While on average a flight from Ireland to Chicago is generally $1,101, our data shows the cheapest flight currently is $488. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $553 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, March is the cheapest month in which you can book a flight from Ireland to Chicago (average of $414). Flying from Ireland to Chicago in July is currently the most expensive (average of $638). 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
Lansing
Merrillville
Hammond
Porter
Benton Harbor

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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 March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$463Average$643FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$479Average$680FlexibilityNo cancel feeOn-time69%

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