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$203+ 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
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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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 October 13, 2025.

This American Airlines deal was found by Cheapflights users on 10/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:10 pmORD - SNN
1 stop12h 20mAmerican Airlines
Tue 11/187:50 amSNN - ORD
1 stop13h 35mAmerican Airlines
Deal found 10/11$470
This KAYAK deal was found by Cheapflights users on 10/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/69:05 pmORD - DUB
2 stops31h 55mLufthansa
Thu 12/185:00 amDUB - ORD
1 stop21h 05mLufthansa
Deal found 10/12$492
This Scandinavian Airlines deal was found by Cheapflights users on 10/11. 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.
Fri 11/77:20 pmORD - DUB
2 stops34h 00mScandinavian Airlines
Fri 11/146:55 pmDUB - ORD
2 stops27h 50mScandinavian Airlines
Deal found 10/11$493
This Scandinavian Airlines deal was found by Cheapflights users on 10/11. 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.
Sun 11/167:20 pmORD - DUB
1 stop17h 00mScandinavian Airlines
Fri 11/2112:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
Deal found 10/11$494
This Scandinavian Airlines deal was found by Cheapflights users on 10/11. 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.
Sat 11/87:20 pmORD - DUB
2 stops33h 25mScandinavian Airlines
Fri 11/146:55 pmDUB - ORD
2 stops27h 50mScandinavian Airlines
Deal found 10/11$496
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:20 pmORD - DUB
1 stop32h 05mScandinavian Airlines
Thu 11/612:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
Deal found 10/12$497
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:50 pmORD - DUB
1 stop13h 20mLufthansa
Tue 12/25:55 pmDUB - ORD
2 stops25h 15mLufthansa
Deal found 10/12$498
This KAYAK deal was found by Cheapflights users on 10/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:50 pmORD - DUB
2 stops18h 55mLufthansa
Tue 12/165:00 amDUB - ORD
1 stop14h 10mLufthansa
Deal found 10/12$500
This Scandinavian Airlines deal was found by Cheapflights users on 10/12. 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.
Wed 10/227:00 amORD - DUB
2 stops22h 50mScandinavian Airlines
Sat 11/110:10 amDUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 10/12$501
This Delta deal was found by Cheapflights users on 10/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:50 pmMDW - DUB
1 stop11h 55mDelta
Sun 12/76:00 amDUB - MDW
2 stops18h 00mDelta
Deal found 10/11$502
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:29 pmORD - DUB
1 stop12h 16mDelta
Mon 11/246:00 amDUB - ORD
2 stops16h 24mDelta
Deal found 10/12$502
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:09 pmMDW - DUB
2 stops16h 36mDelta
Mon 11/109:45 amDUB - MDW
1 stop12h 54mDelta
Deal found 10/13$503

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 October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$470
(American Airlines)

One-way from

$203
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$643

Good round-trip deal

$584 or less

Good one-way deal

$427 or less
Provider with most accurate pricing for Chicago (CHI)-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Dublin flights.
Search Deals
From Chicago (CHI) to Ireland
Search Deals
One-way flight from Chicago (CHI) to Ireland
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Ireland.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Ireland.
Search Deals

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 October 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

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 11/9

5:10 pm-11:30 am

1 stop12h 20m

Shannon

Tue 11/18

7:50 am-3:25 pm

1 stop13h 35m

$470

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 11/7

7:20 pm-11:20 am

2 stops34h 00m

Dublin

Fri 11/14

6:55 pm-4:45 pm

2 stops27h 50m

$493

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 10/30

1:26 pm-7:10 am

1 stop12h 44m

Dublin

Thu 11/6

11:30 am-5:44 pm

1 stop12h 14m

$493

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 11/2

7:20 pm-6:20 pm

1 stop17h 00m

Dublin

Sat 11/15

10:10 am-4:45 pm

1 stop12h 35m

$494

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 3/1

7:20 pm-7:35 pm

2 stops18h 15m

Dublin

Thu 3/5

12:30 pm-4:55 pm

1 stop34h 25m

$501

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 11/10

7:20 pm-10:45 am

2 stops33h 25m

Dublin

Sat 11/15

10:10 am-4:45 pm

1 stop12h 35m

$501

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 11/19

1:29 pm-7:45 am

1 stop12h 16m

Dublin

Mon 11/24

6:00 am-4:24 pm

2 stops16h 24m

$502

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Wed 12/3

10:49 am-7:45 am

1 stop14h 56m

Dublin

Sun 12/7

6:00 am-6:00 pm

2 stops18h 00m

$502

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 2/10

10:40 am-7:50 am

2 stops15h 10m

Dublin

Sun 2/15

10:45 am-5:37 pm

1 stop12h 52m

$503

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Wed 11/5

5:09 pm-3:45 pm

2 stops16h 36m

Dublin

Mon 11/10

9:45 am-4:39 pm

1 stop12h 54m

$503

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 53 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, January is the cheapest month in which you can book a flight from Chicago to Ireland (average of $377). Flying from Chicago to Ireland in June is currently the most expensive (average of $679). 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 October 13, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 29% 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 December 16, 2024.

Travelers seeking maximum savings on their Chicago to Ireland flight should consider departing on Saturday mornings when fares are most often at their lowest. Thursday 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 October 13, 2025.

The most flights from CHI to IE0 are scheduled on a Monday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (14 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 October 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
8,974 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,974 reviews
United Airlines
7.4
Good
8,974 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,043 reviews
United Airlines
7.4
Good
8,974 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Aer Lingus
7.2
Good
1,334 reviews
United Airlines
7.4
Good
8,974 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Icelandair
7.0
Good
555 reviews
United Airlines
7.4
Good
8,974 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Iberia
7.0
Good
2,988 reviews
United Airlines
7.4
Good
8,974 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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.

  • How long is the flight from Chicago to Ireland?

    American Airlines, Scandinavian Airlines, and Delta can get you from Chicago to Ireland in just under 12h 20m. Your travel time can differ by up to 21h 40m. The distance from Chicago to Ireland is about 3578 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Chicago to Ireland one-way?

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $210. However, be on the lookout for offers from KLM and Delta, as they are both options that can get you from Chicago to Ireland for a low price.

  • 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 (88%), Iberia (77%), American Airlines (76%).

  • What are the cheapest flights from Chicago to Ireland?

    While on average a flight from Chicago to Ireland is generally $3,132, our data shows the cheapest flight currently is $388. When looking at the most popular route, (Chicago O'Hare Intl - Dublin), you can expect to pay $348 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, January is the cheapest month in which you can book a flight from Chicago to Ireland (average of $377). Flying from Chicago to Ireland in June is currently the most expensive (average of $679). 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.

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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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$568FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$374Average$565FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$502FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$477FlexibilityNo cancel feeOn-time77%
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$476Average$744FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$496Average$721FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$512Average$875FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$523Average$676FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$528Average$596FlexibilityNo cancel feeOn-time77%

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