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Cheap flights from Ireland to Chicago from £269

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
7 Apr — 14 Apr1
1 adult

Cheap flight deals from Ireland to Chicago

Keep the following information in mind while searching for Ireland to Chicago flight deals. Data was last updated 2 April 2025.

Round-trip from

£396

One-way from

£269

Popular in

July

Cheapest in

November

Average price

£382

Good round-trip deal

£497 or less

Good one-way deal

£482 or less
Delta
  • Delta
  • 15/4-22/4
  • 2 total stops
  • 25h 10m total
  • Ireland to Chicago
Search Deals
15/5
  • 15/5
  • 1 total stop
  • 11h 54m total
  • Ireland to Chicago
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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

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 2 April 2025.

Thu 10/408:55DUB - ORD
1 stop11h 15mKLM
Fri 18/413:50ORD - DUB
1 stop13h 25mKLM
Deal found 2/4£396
Thu 10/408:55DUB - ORD
1 stop11h 15mDelta
Fri 18/418:15ORD - DUB
2 stops16h 25mDelta
Deal found 2/4£397
Thu 15/505:55DUB - MDW
2 stops18h 50mDelta
Thu 29/509:20MDW - DUB
1 stop16h 25mDelta
Deal found 1/4£400
Thu 30/1012:05DUB - ORD
2 stops34h 40mScandinavian Airlines
Tue 4/1107:30ORD - DUB
2 stops22h 20mScandinavian Airlines
Deal found 1/4£410
Sat 21/611:35DUB - ORD
Nonstop8h 25mAer Lingus
Wed 25/622:20ORD - DUB
Nonstop7h 20mAer Lingus
Deal found 1/4£415
Fri 5/910:00DUB - MDW
1 stop14h 03mKLM
Mon 15/915:40MDW - DUB
1 stop11h 05mKLM
Deal found 2/4£416
Fri 31/1015:55DUB - ORD
1 stop29h 30mBritish Airways
Mon 3/1118:45ORD - DUB
1 stop31h 10mBritish Airways
Deal found 2/4£422
Fri 31/1009:45DUB - MDW
1 stop13h 13mMultiple Airlines
Wed 5/1118:45MDW - DUB
1 stop31h 00mMultiple Airlines
Deal found 1/4£423
Sat 20/1214:05DUB - ORD
1 stop15h 04mMultiple Airlines
Sat 27/1213:15ORD - DUB
1 stop12h 00mMultiple Airlines
Deal found 1/4£423
Fri 31/1011:30DUB - MDW
2 stops15h 17mAir France
Wed 5/1110:35MDW - DUB
1 stop15h 10mAir France
Deal found 1/4£426
Wed 22/1012:15DUB - ORD
1 stop15h 00mIcelandair
Wed 31/1218:30ORD - DUB
1 stop9h 45mIcelandair
Deal found 1/4£440
Fri 29/813:45DUB - ORD
Nonstop8h 00mFinnair
Sat 13/922:20ORD - DUB
Nonstop7h 20mFinnair
Deal found 1/4£471

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 2 April 2025.
Use the filters below to find and compare flights from Ireland to Chicago that are best for you.

Fly from

Ireland

Fly to

Chicago

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 15/4

08:55-14:40

1 stop11h 45m

Chicago O'Hare Intl

Tue 22/4

13:50-09:15

1 stop13h 25m

£396

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 14/4

20:45-14:40

1 stop23h 55m

Chicago O'Hare Intl

Sun 20/4

12:15-07:45

1 stop13h 30m

£396

DublinChicago

DUB - MDW

DUBMDW

Dublin

Thu 15/5

05:55-18:45

2 stops18h 50m

Chicago Midway

Thu 29/5

09:20-07:45

1 stop16h 25m

£400

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 21/6

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Wed 25/6

22:20-11:40

Nonstop7h 20m

£415

DublinChicago

DUB - MDW

DUBMDW

Dublin

Fri 5/9

10:00-18:03

1 stop14h 03m

Chicago Midway

Mon 15/9

15:40-08:45

1 stop11h 05m

£416

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/9

12:20-16:10

2 stops33h 50m

Chicago O'Hare Intl

Mon 15/9

19:15-10:55

2 stops33h 40m

£427

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 20/9

09:15-14:15

1 stop35h 00m

Chicago O'Hare Intl

Sat 4/10

22:20-11:40

Nonstop7h 20m

£438

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 15/5

14:15-07:27

2 stops23h 12m

Chicago O'Hare Intl

Sun 25/5

21:08-13:15

2 stops34h 07m

£440

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 29/8

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Sat 13/9

22:20-11:40

Nonstop7h 20m

£471

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 31/5

15:50-15:55

1 stop30h 05m

Chicago O'Hare Intl

Fri 1/8

16:55-09:40

1 stop10h 45m

£492

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 34 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 return 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, January is the cheapest month in which you can book a flight from Ireland to Chicago (average of £595). Flying from Ireland to Chicago in July is currently the most expensive (average of £843). 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 2 April 2025.

A simple way to save on the total cost of your ticket is to fly from Ireland to Chicago in the morning. If you’re flexible enough to do this you can expect to save up to 5% on your trip compared to booking a flight at midday.

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 2 April 2025.

The most flights from IE0 to CHI are scheduled on a Monday (11 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 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 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 2 April 2025.
To help decide which airline to fly from Ireland to Chicago, see what other customers have to say about Singapore Airlines, Delta and KLM. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very Good
1,288 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Delta
8.0
Very Good
7,897 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
KLM
7.8
Good
1,323 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Finnair
7.6
Good
1,267 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
SWISS
7.5
Good
1,572 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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?

    £314 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on TAP AIR PORTUGAL and Icelandair, with prices starting from £354 and £367, respectively.

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

    The top 3 most reliable airlines when flying from Ireland to Chicago are Aer Lingus (94%), American Airlines (91%) and British Airways (91%).

  • What are the cheapest flights from Ireland to Chicago?

    The cheapest flight price from Ireland to Chicago is £376. On average you can expect to pay £1,147. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for £560.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Ireland to Chicago (average of £595). Flying from Ireland to Chicago in July is currently the most expensive (average of £843). 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 Ireland to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to O'Hare Intl flights
Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Heathrow to Midway flights
Stansted to O'Hare Intl flights
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Manchester to Midway flights
Heathrow to St. Louis flights
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London City to Midway flights
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London City to St. Louis flights
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Bristol to Midway flights
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Heathrow to Moline flights
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Istanbul to O'Hare Intl flights
Birmingham to St. Louis flights

Top 8 airlines flying from Ireland to Chicago

Discover the top 8 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 858,174 searches. Data last updated 2 April 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£268Average£445FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£300Average£450FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£303Average£565FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£313Average£467FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£319Average£437FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£381Average£510FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£382Average£570FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£391Average£586FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Chicago?

Cheapflights helps you search for flights from Ireland to Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Chicago?

Cheapflights simply makes it quick and affordable to book flights from Ireland to Chicago by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ireland to Chicago with no change fees?

Yes, we can. To see specific flights from Ireland to Chicago with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ireland to Chicago become cheaper?

Not ready to book yet? You can track prices for flights from Ireland to Chicago on Cheapflights with our Price Alert feature and get notified when better prices are available.

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