Chicago

$388+ Cheap flights from Ireland to Chicago (CHI)

DUB — CHI
Nov 19 — Nov 261
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Cheap flight deals from Ireland to Chicago

Cheapest flights from Ireland to Chicago

Sat 11/217:05 pm -
2 stops32h 37m
Mon 11/237:10 pm -
1 stop17h 10m
Deal found 10/15$498
Thu 12/311:30 am -
1 stop11h 50m
Wed 12/96:30 pm -
1 stop9h 45m
Deal found 10/16$512
Tue 12/111:30 am -
1 stop11h 50m
Tue 12/86:30 pm -
1 stop9h 45m
Deal found 10/17$517
Wed 11/411:30 am -
1 stop11h 50m
Sun 11/86:30 pm -
1 stop9h 45m
Deal found 10/19$521
Thu 11/1911:30 am -
1 stop11h 50m
Thu 11/266:30 pm -
1 stop9h 45m
Deal found 10/19$524
Thu 11/1211:30 am -
Nonstop8h 40m
Thu 11/193:55 pm -
Nonstop7h 20m
Deal found 10/15$525
Wed 12/1611:30 am -
1 stop11h 50m
Mon 2/156:30 pm -
1 stop9h 45m
Deal found 10/16$529
Mon 12/2111:30 am -
1 stop11h 50m
Sat 1/166:30 pm -
1 stop9h 45m
Deal found 10/19$537
Thu 11/57:50 am -
1 stop13h 40m
Mon 11/96:35 pm -
1 stop10h 55m
Deal found 10/16$596
Mon 11/28:05 pm -
1 stop25h 25m
Sun 11/88:30 pm -
1 stop14h 15m
Deal found 10/20$635
Thu 12/37:50 am -
1 stop16h 55m
Mon 12/79:50 pm -
1 stop15h 35m
Deal found 10/16$655
Thu 12/37:50 am -
1 stop13h 45m
Mon 12/75:40 pm -
2 stops17h 05m
Deal found 10/16$656

Find flight deals from Ireland to Chicago

Round-trip from

$498
(Scandinavian Airlines)

One-way from

$388
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$728

Good round-trip deal

$562 or less

Good one-way deal

$533 or less
From Ireland to Chicago (CHI)
One-way flight from Ireland to Chicago (CHI)
Highest demand for flights based on searches. 12% potential increase in price ($92 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Average for round-trip flights in October 2026
Price to beat on a round-trip flight from Ireland to Chicago (CHI).
Price to beat on a one-way flight from Ireland to Chicago (CHI).

Cheapflights Fare Finder

 
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
Quickest round-trip

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Tue 12/1

11:30 am-2:10 pm

Nonstop8h 40m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$404

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 1/13

8:50 am-2:25 pm

1 stop11h 35m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$426

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Mon 3/22

5:45 am-4:37 pm

2 stops15h 52m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$430

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 12/16

8:50 am-9:36 pm

2 stops18h 46m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$430

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 4/8

8:55 am-8:37 pm

2 stops17h 42m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$434

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 4/15

6:00 am-6:40 pm

2 stops18h 40m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$435

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 4/14

6:00 am-7:34 pm

2 stops19h 34m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$435

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 4/1

6:00 am-6:40 pm

2 stops18h 40m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$435

ShannonChicago

SNN Shannon - ORD Chicago O'Hare Intl

SNNORD

Shannon

Sat 4/3

7:40 pm-6:15 pm

3 stops28h 35m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$437

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Mon 12/21

9:55 am-8:26 pm

2 stops16h 31m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 34 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

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, November is the cheapest month in which you can book a flight from Ireland to Chicago (average of $536). Flying from Ireland to Chicago in July is currently the most expensive (average of $836). 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?

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

The most flights from IE0 to CHI are scheduled on a Saturday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).

How often are flights from Ireland to Chicago delayed?

About 10% of weekly flights between Ireland and Chicago have experienced delays in the past year, with the average delay time being 165 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 Saturday 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.

How far ahead should I book a flight from Ireland to Chicago?

The best time to book flights from Ireland to Chicago is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Chicago

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.

Comfort

7.2

Crew

8.1

Food

6.7

Entertainment

7.0

Overall

7.3

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Comfort

7.2

Crew

8.1

Food

6.7

Entertainment

7.0

Overall

7.3

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Related info for your journey

  • How long is the flight from Ireland to Chicago?

    For as low as $560, Delta can have you in Chicago from Ireland in 11h 35m. 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 $290 on Icelandair. Other airlines that offer cheap prices include JetBlue from $317 and British Airways from $384 one-way.

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

  • 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: Finnair (75%), American Airlines (69%), Aer Lingus( 69%).

  • What are the cheapest flights from Ireland to Chicago?

    While on average a flight from Ireland to Chicago is generally $1,249, our data shows the cheapest flight currently is $444. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $513 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, November is the cheapest month in which you can book a flight from Ireland to Chicago (average of $536). Flying from Ireland to Chicago in July is currently the most expensive (average of $836). 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
Merrillville
Lansing
Valparaiso
Hammond
Saint Joseph
Porter

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Top 2 airlines flying from Ireland to Chicago

AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$468Average$673FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$479Average$752FlexibilityNo cancel feeOn-time69%

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