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$213+ Cheap flights from Chicago (CHI) to Ireland

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DUB
ago. 18 — ago. 251
lun. 8/18
lun. 8/25
1 adult, Economy
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Cheap flight deals from Chicago to Ireland

Keep the following information in mind while searching for Chicago to Ireland flight deals. Data was last updated agosto 13, 2025.

Round-trip from

$479
(oojo)

One-way from

$213
(oojo)

Popular in

June

Cheapest in

February

Average price

$767

Good round-trip deal

$601 or less

Good one-way deal

$446 or less
From Chicago (CHI) to Ireland
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One-way flight from Chicago (CHI) to Ireland
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Highest demand for flights based on searches. 16% potential increase in price ($132 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Ireland.
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Price to beat on a one-way flight from Chicago (CHI) to Ireland.
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Find flight deals from Chicago to Ireland

Cheapest flights from Chicago to Ireland
Explore the most affordable flight options available from Chicago to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 13, 2025.

This oojo deal was found by Cheapflights users on 8/12. 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.
mar. 11/116:30 pmORD - DUB
1 stop9h 45mIcelandair
mié. 11/1911:30 amDUB - ORD
1 stop11h 50mIcelandair
Deal found 8/12$479
This oojo deal was found by Cheapflights users on 8/12. 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.
vie. 10/1710:15 pmORD - DUB
1 stop30h 50mIcelandair
sáb. 11/111:30 amDUB - ORD
1 stop11h 50mIcelandair
Deal found 8/12$480
This Flightnetwork deal was found by Cheapflights users on 8/13. 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.
lun. 9/83:45 pmORD - DUB
Nonstop7h 25mAer Lingus
mié. 9/1711:35 amDUB - ORD
Nonstop8h 25mAer Lingus
Deal found 8/13$481
This Scandinavian Airlines deal was found by Cheapflights users on 8/12. 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.
vie. 11/287:20 pmORD - DUB
1 stop32h 05mScandinavian Airlines
mar. 12/212:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
Deal found 8/12$484
This Mytrip deal was found by Cheapflights users on 8/12. 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.
lun. 9/19:15 pmORD - DUB
Nonstop7h 25mAer Lingus
mié. 9/1011:35 amDUB - ORD
Nonstop8h 25mAer Lingus
Deal found 8/12$486
This Booking.com deal was found by Cheapflights users on 8/10. 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.
mié. 9/109:15 pmORD - DUB
Nonstop7h 25mAer Lingus
mié. 9/174:40 pmDUB - ORD
Nonstop8h 20mAer Lingus
Deal found 8/10$487
This Booking.com deal was found by Cheapflights users on 8/13. 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.
lun. 9/19:15 pmORD - DUB
Nonstop7h 25mAer Lingus
jue. 9/1111:35 amDUB - ORD
Nonstop8h 25mAer Lingus
Deal found 8/13$488
This Booking.com deal was found by Cheapflights users on 8/13. 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.
lun. 9/83:45 pmORD - DUB
Nonstop7h 25mAer Lingus
jue. 9/114:40 pmDUB - ORD
Nonstop8h 20mAer Lingus
Deal found 8/13$489
This oojo deal was found by Cheapflights users on 8/10. 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.
mar. 11/256:30 pmORD - DUB
1 stop9h 45mIcelandair
mar. 12/211:30 amDUB - ORD
1 stop11h 50mIcelandair
Deal found 8/10$490
This Mytrip deal was found by Cheapflights users on 8/11. 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.
mié. 9/105:05 amORD - DUB
3 stops20h 40mMultiple Airlines
sáb. 9/209:20 amDUB - ORD
2 stops18h 51mMultiple Airlines
Deal found 8/11$492
This Scandinavian Airlines deal was found by Cheapflights users on 8/11. 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.
mar. 11/117:00 amORD - DUB
2 stops22h 45mScandinavian Airlines
mié. 11/1911:30 amDUB - ORD
2 stops35h 15mScandinavian Airlines
Deal found 8/11$493
This American Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 11/55:10 pmORD - SNN
1 stop17h 35mAmerican Airlines
mié. 11/127:50 amSNN - ORD
1 stop13h 35mAmerican Airlines
Deal found 8/13$534

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Ireland 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 agosto 13, 2025.
Use the filters below to find and compare flights from Chicago to Ireland that are best for you.

Fly from

Chicago

Fly to

Ireland

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

lun. 12/1

7:20 pm-11:45 am

1 stop34h 25m

Dublin

vie. 12/5

7:05 pm-4:45 pm

1 stop27h 40m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

jue. 11/27

7:20 pm-6:20 pm

1 stop17h 00m

Dublin

dom. 11/30

7:05 pm-4:45 pm

1 stop27h 40m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 11/30

7:20 pm-11:45 am

1 stop34h 25m

Dublin

jue. 12/11

12:30 pm-4:45 pm

1 stop34h 15m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

sáb. 11/29

7:20 pm-6:20 pm

1 stop17h 00m

Dublin

dom. 12/7

7:05 pm-4:45 pm

1 stop27h 40m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

jue. 12/4

7:20 pm-9:25 am

1 stop32h 05m

Dublin

jue. 12/11

12:30 pm-4:45 pm

1 stop34h 15m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 11/30

7:20 pm-11:45 am

1 stop34h 25m

Dublin

vie. 12/5

7:05 pm-4:45 pm

1 stop27h 40m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

vie. 12/5

7:20 pm-9:25 am

1 stop32h 05m

Dublin

jue. 12/11

7:05 pm-4:45 pm

1 stop27h 40m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

vie. 11/28

7:20 pm-9:25 am

1 stop32h 05m

Dublin

dom. 11/30

7:05 pm-4:45 pm

1 stop27h 40m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

vie. 11/28

7:20 pm-9:25 am

1 stop32h 05m

Dublin

mar. 12/2

12:30 pm-4:45 pm

1 stop34h 15m

$484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

lun. 12/1

7:20 pm-11:45 am

1 stop34h 25m

Dublin

jue. 12/11

7:05 pm-4:45 pm

1 stop27h 40m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Chicago 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 Chicago to Ireland

What is the cheapest month to book a flight from Chicago to Ireland?

Currently, November is the cheapest month in which you can book a flight from Chicago to Ireland (average of $509). Flying from Chicago to Ireland in June is currently the most expensive (average of $925). 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 CHI to IE?

Find hourly flight availability from Chicago to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 13, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 2% on flights from Chicago to Ireland by exploring options for tickets at noon.

What is the cheapest day to fly from Chicago to Ireland?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Ireland. Price data was last updated on September 22, 2024.

Travelers seeking maximum savings on their Chicago to Ireland flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Ireland

Explore weekly flight availability from Chicago to Ireland. 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 agosto 13, 2025.

The most flights from CHI to IE0 are scheduled on a Monday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (20 on average).

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated agosto 13, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Aer Lingus from Chicago to Ireland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,920 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,920 reviews
United Airlines
7.4
Good
8,920 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,920 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.1
Good
1,212 reviews
United Airlines
7.4
Good
8,920 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Icelandair
7.0
Good
526 reviews
United Airlines
7.4
Good
8,920 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,878 reviews
United Airlines
7.4
Good
8,920 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Chicago to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    When deciding which route to take from Chicago to Ireland consider Chicago O'Hare Intl - Dublin, Chicago Midway - Dublin or Chicago O'Hare Intl - Shannon as they are the most popular.

  • What are the most reliable airlines from Chicago to Ireland?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Ireland on time: Air France (86%), American Airlines (63%), Aer Lingus (63%).

  • What are the cheapest flights from Chicago to Ireland?

    While on average a flight from Chicago to Ireland is generally $3,298, our data shows the cheapest flight currently is $378. When looking at the most popular route, (Chicago O'Hare Intl - Dublin), you can expect to pay $403 for that flight.

  • Can I find deals for flights from Chicago to Ireland that include hotel bookings?

    Yes. In addition to deals on Chicago to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Ireland.

  • Can I find deals for business class flights from Chicago to Ireland?

    Yes. Cheapflights offers flight deals from Chicago to Ireland 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 Chicago to Ireland?

    Currently, November is the cheapest month in which you can book a flight from Chicago to Ireland (average of $509). Flying from Chicago to Ireland in June is currently the most expensive (average of $925). 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

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Alternative routes for Chicago to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Chicago to Ireland

Discover the top 10 airlines that operate flights from Chicago to Ireland. 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 agosto 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$275FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$355Average$543FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$394Average$491FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$482FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$456Average$712FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$511Average$762FlexibilityNo cancel feeOn-time71%
IberiaCheapest$512Average$746FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$524Average$673FlexibilityNo cancel feeOn-time70%
FinnairCheapest$526Average$839FlexibilityNo cancel feeOn-time76%

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