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Cheap flights from Ireland to Chicago from £316

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
16 Jul — 23 Jul1
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 11 July 2025.

Round-trip from

£389

One-way from

£316

Popular in

July

Cheapest in

November

Average price

£542

Good round-trip deal

£472 or less

Good one-way deal

£581 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 29/8-31/8
  • 4 total stops
  • 56h 40m total
  • Ireland to Chicago
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 7/9
  • 1 total stop
  • 16h 40m total
  • Ireland to Chicago
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£52 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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).
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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 11 July 2025.

Fri 29/812:20DUB - ORD
2 stops33h 50mScandinavian Airlines
Sun 31/807:00ORD - DUB
2 stops22h 50mScandinavian Airlines
Deal found 9/7£389
Thu 18/913:45DUB - ORD
Nonstop8h 00mFinnair
Sat 27/913:20ORD - DUB
1 stop14h 25mFinnair
Deal found 9/7£389
Thu 18/1205:55DUB - ORD
2 stops20h 41mDelta
Mon 5/117:45ORD - DUB
2 stops15h 55mDelta
Deal found 9/7£392
Wed 29/1005:55DUB - MDW
2 stops17h 41mDelta
Mon 3/1106:00MDW - DUB
1 stop19h 45mDelta
Deal found 11/7£395
Mon 25/821:35DUB - ORD
1 stop21h 55mIberia
Mon 1/922:25ORD - DUB
Nonstop7h 15mIberia
Deal found 11/7£400
Mon 1/912:00DUB - MDW
1 stop11h 37mKLM
Sun 7/918:17MDW - DUB
1 stop9h 43mKLM
Deal found 9/7£414
Thu 4/1209:20DUB - ORD
1 stop16h 45mMultiple Airlines
Thu 11/1218:35ORD - DUB
Nonstop7h 35mMultiple Airlines
Deal found 9/7£420
Fri 29/811:35DUB - ORD
Nonstop8h 25mAer Lingus
Sun 31/821:15ORD - DUB
Nonstop7h 25mAer Lingus
Deal found 9/7£428
Wed 3/1209:45DUB - MDW
1 stop12h 38mAir France
Wed 10/1210:35MDW - DUB
1 stop15h 10mAir France
Deal found 9/7£429
Mon 1/1209:00DUB - ORD
1 stop14h 28mUnited Airlines
Mon 8/1218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Deal found 9/7£430
Tue 26/814:15DUB - ORD
1 stop13h 00mIcelandair
Sun 31/819:25ORD - DUB
1 stop11h 50mIcelandair
Deal found 9/7£436
Fri 18/709:30DUB - ORD
1 stop14h 25mAmerican Airlines
Fri 3/1020:40ORD - DUB
1 stop12h 25mAmerican Airlines
Deal found 10/7£437

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 11 July 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

Fri 29/8

12:20-16:10

2 stops33h 50m

Chicago O'Hare Intl

Sun 31/8

07:00-11:50

2 stops22h 50m

£389

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 18/9

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Thu 2/10

13:19-09:45

1 stop14h 26m

£389

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 18/12

05:55-20:36

2 stops20h 41m

Chicago O'Hare Intl

Mon 5/1

17:45-15:40

2 stops15h 55m

£392

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 29/10

05:55-18:36

2 stops17h 41m

Chicago Midway

Mon 3/11

06:00-07:45

1 stop19h 45m

£395

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 25/8

21:35-13:30

1 stop21h 55m

Chicago O'Hare Intl

Mon 1/9

22:25-11:40

Nonstop7h 15m

£400

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 1/9

12:00-17:37

1 stop11h 37m

Chicago Midway

Sun 7/9

18:17-10:00

1 stop9h 43m

£414

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 4/12

09:20-20:05

1 stop16h 45m

Chicago O'Hare Intl

Thu 11/12

18:35-08:10

Nonstop7h 35m

£420

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 29/8

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Sun 31/8

21:15-10:40

Nonstop7h 25m

£428

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 3/12

09:45-16:23

1 stop12h 38m

Chicago Midway

Wed 10/12

10:35-07:45

1 stop15h 10m

£429

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 1/12

09:00-17:28

1 stop14h 28m

Chicago O'Hare Intl

Mon 8/12

18:35-08:10

Nonstop7h 35m

£430

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 32 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 11 July 2025.

A simple way to save on the total cost of your ticket is to fly from Ireland to Chicago in the afternoon. 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 11 July 2025.

The most flights from IE0 to CHI are scheduled on a Monday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).

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 11 July 2025.
Check out reviews from past customers who have flown with Delta, KLM, andFinnair from Ireland to Chicago 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.
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,312 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,467 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,846 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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?

    £316 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on WestJet and Icelandair, with prices starting from £331 and £366, respectively.

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

    The top 3 most reliable airlines when flying from Ireland to Chicago are Air Canada (64%), Austrian Airlines (64%) and Brussels Airlines (64%).

  • What are the cheapest flights from Ireland to Chicago?

    The cheapest flight price from Ireland to Chicago is £350. On average you can expect to pay £972. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for £286.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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
Heathrow to Midway flights
Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Stansted to O'Hare Intl flights
Luton to O'Hare Intl flights
Manchester to O'Hare Intl flights
Manchester to Midway flights
Edinburgh to O'Hare Intl flights
Gatwick to Midway flights
Heathrow to St. Louis flights
Gatwick to St. Louis flights
London City to Midway flights
Birmingham to O'Hare Intl flights
Leeds to O'Hare Intl flights
Newcastle upon Tyne to O'Hare Intl flights
London City to St. Louis flights
Edinburgh to Midway flights
Frederic Chopin to O'Hare Intl flights
Birmingham to Midway flights
Glasgow Intl to O'Hare Intl flights
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Newcastle upon Tyne to Midway flights
Istanbul to O'Hare Intl flights
Edinburgh to St. Louis flights
Leeds to Midway flights
Amsterdam to O'Hare Intl flights
Heathrow to Evansville flights
Glasgow Intl to Midway flights
Manchester to St. Louis flights
Heathrow to Moline flights
Glasgow Intl to St. Louis flights
Dublin to Midway flights
Bristol to O'Hare Intl flights
Heathrow to Dubuque flights
Bristol to Midway flights
Stansted to St. Louis flights
Newquay to O'Hare Intl flights
Luton to St. Louis flights
London City to Moline flights
Cardiff to O'Hare Intl flights
Exeter to O'Hare Intl flights
Inverness to O'Hare Intl flights
Heathrow to Springfield flights
Madrid to O'Hare Intl flights
Vienna to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights

Top 7 airlines flying from Ireland to Chicago

Discover the top 7 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£255Average£355FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£285Average£501FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£288Average£530FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£304Average£441FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£363Average£541FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£372Average£547FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£483Average£582FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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