Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ireland to Chicago from £329

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Ireland to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Ireland (IE0) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

£329
United Airlines
  • United Airlines
  • 3/4-21/4
  • 1 total stop
  • 23h 10m total
  • Ireland to Chicago
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 17 January 2025.

Thu 3/409:50DUB - ORD
1 stop15h 40mUnited Airlines
Mon 21/420:15ORD - DUB
Nonstop7h 30mUnited Airlines
Deal found 17/1£329
Sat 30/813:55DUB - ORD
Nonstop8h 00mMultiple Airlines
Wed 3/917:45ORD - DUB
1 stop12h 10mMultiple Airlines
Deal found 16/1£334
Mon 17/218:40DUB - ORD
1 stop27h 35mSWISS
Thu 27/216:10ORD - DUB
1 stop13h 45mSWISS
Deal found 16/1£336
Mon 24/210:45DUB - ORD
1 stop13h 40mLufthansa
Mon 10/322:25ORD - DUB
1 stop13h 50mLufthansa
Deal found 17/1£337
Thu 30/108:40DUB - ORD
1 stop12h 05mBritish Airways
Thu 6/217:00ORD - DUB
1 stop10h 50mBritish Airways
Deal found 16/1£340
Sun 2/205:55DUB - ORD
1 stop14h 35mKLM
Sat 8/213:25ORD - DUB
1 stop13h 20mKLM
Deal found 16/1£345
Fri 19/911:00DUB - ORD
2 stops17h 00mAmerican Airlines
Mon 29/917:45ORD - DUB
1 stop12h 05mAmerican Airlines
Deal found 16/1£346
Mon 3/308:50DUB - MDW
2 stops15h 21mDelta
Mon 10/318:42MDW - DUB
2 stops15h 58mDelta
Deal found 17/1£346
Tue 22/406:00DUB - ORD
1 stop15h 00mDelta
Sun 27/416:56ORD - DUB
2 stops16h 04mDelta
Deal found 17/1£349
Wed 26/211:30DUB - ORD
1 stop11h 50mIcelandair
Wed 12/319:30ORD - DUB
1 stop9h 45mIcelandair
Deal found 17/1£357
Tue 22/411:00DUB - MDW
1 stop13h 00mKLM
Sun 27/413:16MDW - DUB
1 stop12h 29mKLM
Deal found 17/1£360
Thu 16/104:25DUB - ORD
1 stop17h 05mTAP AIR PORTUGAL
Sun 26/120:25ORD - DUB
1 stop13h 45mTAP AIR PORTUGAL
Deal found 16/1£379

Find flights from Ireland to Chicago within your budget

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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 3/4

09:50-19:30

1 stop15h 40m

Chicago O'Hare Intl

Mon 21/4

20:15-09:45

Nonstop7h 30m

£329

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 17/2

18:40-16:15

1 stop27h 35m

Chicago O'Hare Intl

Tue 4/3

19:05-17:50

1 stop16h 45m

£336

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 24/2

10:45-18:25

1 stop13h 40m

Chicago O'Hare Intl

Mon 10/3

22:25-17:15

1 stop13h 50m

£337

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 23/5

08:55-19:55

1 stop17h 00m

Chicago O'Hare Intl

Mon 26/5

20:15-09:45

Nonstop7h 30m

£338

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 30/1

08:40-14:45

1 stop12h 05m

Chicago O'Hare Intl

Thu 6/2

17:00-09:50

1 stop10h 50m

£340

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 2/2

05:55-14:30

1 stop14h 35m

Chicago O'Hare Intl

Sat 8/2

13:25-08:45

1 stop13h 20m

£345

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 1/2

08:55-15:05

1 stop12h 10m

Chicago O'Hare Intl

Fri 7/2

10:05-08:05

2 stops16h 00m

£346

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 3/3

08:50-18:11

2 stops15h 21m

Chicago Midway

Mon 10/3

18:42-15:40

2 stops15h 58m

£346

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 26/2

11:30-17:20

1 stop11h 50m

Chicago O'Hare Intl

Wed 12/3

19:30-10:15

1 stop9h 45m

£357

DublinChicago

DUB - MDW

DUBMDW

Dublin

Tue 22/4

11:00-18:00

1 stop13h 00m

Chicago Midway

Sun 27/4

13:16-07:45

1 stop12h 29m

£360

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Showing 1-10 of 29 results
1
2
3

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.

Travel insights for flights from Ireland to Chicago

Get recent, data-driven insights about flights from Ireland to Chicago including ideal travel times, pricing trends, and more.

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 17 January 2025.

When flying from Ireland to Chicago, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 17 January 2025.

The most flights from IE0 to CHI are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 17 January 2025.
To help decide which airline to fly from Ireland to Chicago, see what other customers have to say about KLM, TAP AIR PORTUGAL and British Airways. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,513 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,513 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,598 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,969 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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?

    £358 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 Icelandair and Aer Lingus, with prices starting from £359 and £415, respectively.

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

    The top 3 most reliable airlines when flying from Ireland to Chicago are American Airlines (65%), Aer Lingus (65%) and British Airways (65%).

  • What are the cheapest flights from Ireland to Chicago?

    The cheapest flight price from Ireland to Chicago is £360. On average you can expect to pay £1,128. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for £322.

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
London City to O'Hare Intl flights
Gatwick to O'Hare Intl flights
Heathrow to Midway flights
Luton to O'Hare Intl flights
Stansted to O'Hare Intl flights
Edinburgh to O'Hare Intl flights
Manchester to O'Hare Intl flights
Southampton to O'Hare Intl flights
Heathrow to St. Louis flights
Birmingham to O'Hare Intl flights
Newcastle upon Tyne to O'Hare Intl flights
Manchester to Midway flights
Glasgow Intl to O'Hare Intl flights
Edinburgh to Midway flights
Gatwick to St. Louis flights
Glasgow Intl to Midway flights
Birmingham to Midway flights
London City to St. Louis flights
Manchester to St. Louis flights
London City to Midway flights
Belfast Intl to O'Hare Intl flights
Belfast City to O'Hare Intl flights
Newcastle upon Tyne to Midway flights
Amsterdam to O'Hare Intl flights
Leeds to O'Hare Intl flights
Dublin to O'Hare Intl flights
Gatwick to Midway flights
Luton to St. Louis flights
Leeds to Midway flights
Heathrow to Moline flights
Dublin to Midway flights
Grimsby to O'Hare Intl flights
Edinburgh to St. Louis flights
Inverness to O'Hare Intl flights
Liverpool to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Heathrow to Peoria flights
Bristol to O'Hare Intl flights
Stansted to St. Louis flights
Southend to O'Hare Intl flights
Bristol to Midway flights
Heathrow to Evansville flights
Southampton to Midway flights
Athens to O'Hare Intl flights
Cardiff to O'Hare Intl flights
Norwich to O'Hare Intl flights
Darlington to Midway 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£283Average£470FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£317Average£442FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£320Average£615FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£323Average£494FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£331Average£455FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapest£414Average£620FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£464Average£614FlexibilityNo cancel feeOn-time76%
Search Finnair 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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.