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

£329 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 £348 and £353, respectively.

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

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

What are the cheapest flights from Ireland to Chicago?

The cheapest flight price from Ireland to Chicago is £341. On average you can expect to pay £1,094. The most popular route, (Dublin - Chicago Midway), can usually be booked for £397.

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 (57%), Aer Lingus (57%) and British Airways (57%).

What are the most popular airlines that fly from Ireland to Chicago?

The most popular airlines flying from Ireland to Chicago are American Airlines, Finnair and British Airways. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Ireland to Chicago?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 14% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Ireland to Chicago?

Users have found that booking a flight from Ireland to Chicago at least 52 days early can save you up to 73% on average compared to booking a flight this week. If booking 52 days before your flight isn’t an option for you, users have found flights from Ireland to Chicago for as little as £410 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £467 for flights departing within the next 3 days.

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

Flights from Ireland to Chicago lean towards being more expensive in July. Prices are generally better when you fly from Ireland to Chicago in November, with the cheapest ticket starting at £273.

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.

£467+ Flights from Ireland to Chicago

Cheap flight deals from Ireland to Chicago

Round-trip from	£335
One-way from	£329
Popular in	July
Cheapest in	November
Average price	£414
Good round-trip deal	£453 or less
Good one-way deal	£407 or less

Scandinavian Airlines
23/4-27/4
3 total stops
51h 25m total
Ireland to Chicago

Search Deals

WestJet
21/5
1 total stop
33h 54m total
Ireland to Chicago

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£80 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 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 20 February 2025.

Wed 23/411:45DUB - ORD

2 stops34h 25mScandinavian Airlines

Sun 27/419:15ORD - DUB

1 stop17h 00mScandinavian Airlines

Deal found 19/2£335

Tue 28/1011:30DUB - ORD

1 stop11h 50mIcelandair

Thu 6/1118:30ORD - DUB

1 stop9h 45mIcelandair

Deal found 19/2£391

Mon 3/313:00DUB - ORD

1 stop11h 45mBritish Airways

Mon 10/318:00ORD - DUB

1 stop10h 50mBritish Airways

Deal found 19/2£396

Thu 27/217:25DUB - ORD

1 stop27h 05mKLM

Wed 5/314:00ORD - DUB

1 stop12h 45mKLM

Deal found 19/2£403

Wed 19/305:55DUB - ORD

1 stop14h 35mDelta

Wed 26/314:40ORD - DUB

2 stops17h 00mDelta

Deal found 19/2£404

Sat 1/305:55DUB - MDW

2 stops17h 48mDelta

Mon 10/318:42MDW - DUB

2 stops15h 58mDelta

Deal found 19/2£405

Thu 27/212:00DUB - MDW

1 stop16h 20mKLM

Wed 5/312:44MDW - DUB

1 stop15h 01mKLM

Deal found 19/2£415

Fri 7/1114:05DUB - ORD

1 stop12h 00mMultiple Airlines

Wed 12/1118:25ORD - DUB

1 stop11h 45mMultiple Airlines

Deal found 19/2£417

Mon 14/409:30DUB - ORD

1 stop14h 06mAmerican Airlines

Sun 20/410:28ORD - DUB

1 stop13h 02mAmerican Airlines

Deal found 19/2£424

Sat 1/1108:30DUB - ORD

1 stop17h 35mLufthansa

Sun 2/1121:25ORD - DUB

1 stop13h 50mLufthansa

Deal found 19/2£433

Sat 1/1109:00DUB - ORD

1 stop11h 52mUnited Airlines

Tue 4/1111:45ORD - DUB

2 stops13h 25mUnited Airlines

Deal found 19/2£442

Thu 30/1018:40DUB - ORD

1 stop24h 15mSWISS

Sat 8/1116:10ORD - DUB

1 stop19h 40mSWISS

Deal found 19/2£472

Best flights from Ireland to Chicago
Discover carefully curated flight deals from Ireland to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 February 2025.

Wed 23/411:45DUB - ORD

2 stops34h 25mScandinavian Airlines

Sun 27/419:15ORD - DUB

1 stop17h 00mScandinavian Airlines

Deal found 19/2£335

Mon 3/313:00DUB - ORD

1 stop11h 45mBritish Airways

Mon 10/318:00ORD - DUB

1 stop10h 50mBritish Airways

Deal found 19/2£396

Mon 3/308:50DUB - ORD

1 stop11h 40mDelta

Tue 11/317:00ORD - DUB

2 stops17h 40mDelta

Deal found 19/2£401

Wed 5/305:55DUB - ORD

1 stop14h 35mKLM

Wed 12/317:25ORD - DUB

1 stop18h 15mKLM

Deal found 19/2£410

Mon 14/409:30DUB - ORD

1 stop14h 06mAmerican Airlines

Sun 20/410:28ORD - DUB

1 stop13h 02mAmerican Airlines

Deal found 19/2£424

Mon 14/411:35DUB - ORD

Nonstop8h 25mAer Lingus

Sun 20/415:45ORD - DUB

Nonstop7h 25mAer Lingus

Deal found 19/2£426

Sat 3/512:15DUB - ORD

1 stop12h 05mIcelandair

Tue 13/519:25ORD - DUB

1 stop9h 40mIcelandair

Deal found 19/2£428

Wed 12/308:00DUB - ORD

1 stop15h 39mUnited Airlines

Wed 19/315:00ORD - DUB

1 stop14h 05mUnited Airlines

Deal found 19/2£461

Tue 4/315:20DUB - ORD

Nonstop8h 35mMultiple Airlines

Tue 11/312:48ORD - DUB

1 stop11h 17mMultiple Airlines

Deal found 18/2£478

Mon 3/305:00DUB - ORD

2 stops19h 35mLufthansa

Sun 16/322:25ORD - DUB

1 stop30h 35mLufthansa

Deal found 19/2£498

Sun 2/314:40DUB - ORD

1 stop25h 30mTurkish Airlines

Fri 7/320:30ORD - DUB

1 stop31h 25mTurkish Airlines

Deal found 19/2£501

Fri 7/318:40DUB - ORD

2 stops23h 35mSWISS

Tue 11/316:45ORD - DUB

2 stops20h 05mSWISS

Deal found 19/2£508

Direct flights from Ireland to Chicago
Explore direct flight options from Ireland to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 February 2025.

Mon 14/411:35DUB - ORD

Nonstop8h 25mAer Lingus

Sun 20/415:45ORD - DUB

Nonstop7h 25mAer Lingus

Deal found 19/2£426

Sat 5/411:35DUB - ORD

Nonstop8h 00mUnited Airlines

Fri 18/420:15ORD - DUB

Nonstop7h 30mUnited Airlines

Deal found 19/2£518

Fri 18/411:35DUB - ORD

Nonstop8h 00mMultiple Airlines

Mon 28/420:15ORD - DUB

Nonstop7h 30mMultiple Airlines

Deal found 19/2£520

Thu 5/611:35DUB - ORD

Nonstop8h 00mBrussels Airlines

Tue 10/620:15ORD - DUB

Nonstop7h 30mBrussels Airlines

Deal found 18/2£590

Sat 9/811:35DUB - ORD

Nonstop8h 25mAmerican Airlines

Sat 16/820:50ORD - DUB

Nonstop7h 25mAmerican Airlines

Deal found 19/2£715

Fri 21/311:30DUB - ORD

Nonstop8h 30mBritish Airways

Fri 28/316:55ORD - DUB

Nonstop7h 20mBritish Airways

Deal found 19/2£722

Tue 15/713:45DUB - ORD

Nonstop8h 00mFinnair

Fri 1/822:25ORD - DUB

Nonstop7h 15mFinnair

Deal found 19/2£736

Last-minute flights from Ireland to Chicago
Discover last-minute flight deals from Ireland to Chicago. Data last updated 20 February 2025 and is based on user searches.

Wed 26/213:10DUB - ORD

1 stop14h 53mMultiple Airlines

Wed 5/319:40ORD - DUB

Nonstop7h 20mMultiple Airlines

Deal found 19/2£509

Thu 27/213:25DUB - ORD

1 stop31h 05mKLM

Wed 5/314:00ORD - DUB

1 stop12h 45mKLM

Deal found 20/2£402

Thu 27/212:00DUB - MDW

1 stop16h 20mKLM

Wed 5/312:44MDW - DUB

1 stop15h 01mKLM

Deal found 19/2£415

Thu 27/208:40DUB - ORD

1 stop12h 05mBritish Airways

Wed 5/314:50ORD - DUB

2 stops15h 20mBritish Airways

Deal found 20/2£421

Thu 27/209:00DUB - ORD

1 stop11h 40mUnited Airlines

Wed 5/308:50ORD - DUB

1 stop16h 10mUnited Airlines

Deal found 20/2£436

Fri 28/216:40DUB - ORD

Nonstop8h 35mAer Lingus

Sun 16/320:40ORD - DUB

Nonstop7h 20mAer Lingus

Deal found 19/2£450

Sat 1/310:20DUB - ORD

1 stop13h 30mScandinavian Airlines

Sun 16/320:40ORD - DUB

2 stops32h 45mScandinavian Airlines

Deal found 19/2£401

Sat 1/305:55DUB - ORD

2 stops22h 03mDelta

Mon 10/318:15ORD - DUB

2 stops16h 25mDelta

Deal found 19/2£405

Sat 1/305:55DUB - MDW

2 stops17h 48mDelta

Mon 10/318:42MDW - DUB

2 stops15h 58mDelta

Deal found 19/2£405

Sat 1/318:40DUB - ORD

2 stops23h 35mSWISS

Mon 10/317:55ORD - DUB

2 stops18h 55mSWISS

Deal found 19/2£470

Sat 1/304:15DUB - ORD

1 stop17h 15mTAP AIR PORTUGAL

Fri 7/320:20ORD - DUB

1 stop13h 50mTAP AIR PORTUGAL

Deal found 19/2£505

Sun 2/314:40DUB - ORD

1 stop25h 30mTurkish Airlines

Fri 7/320:30ORD - DUB

1 stop31h 25mTurkish Airlines

Deal found 19/2£501

One-way flights from Ireland to Chicago
Search for one-way flight options from Ireland to Chicago. Find affordable one-way fares based on user searches. Data last updated 20 February 2025.

Wed 21/512:50DUB - ORD

1 stop33h 54mWestJet

Deal found 18/2£329

Tue 18/316:55DUB - ORD

1 stop28h 35mTAP AIR PORTUGAL

Deal found 19/2£348

Thu 13/311:30DUB - ORD

1 stop11h 50mIcelandair

Deal found 19/2£353

Mon 5/511:30DUB - MDW

2 stops16h 56mWestJet

Deal found 19/2£362

Wed 23/406:40DUB - MDW

3 stops39h 06mMultiple Airlines

Deal found 19/2£386

Wed 23/416:40DUB - ORD

Nonstop8h 20mAer Lingus

Deal found 19/2£411

Mon 17/310:55DUB - ORD

1 stop37h 40mTurkish Airlines

Deal found 18/2£434

Sat 22/316:05DUB - ORD

2 stops23h 46mBritish Airways

Deal found 18/2£475

Wed 23/406:00DUB - MDW

2 stops18h 20mDelta

Deal found 19/2£481

Thu 17/709:15DUB - ORD

1 stop15h 00mMultiple Airlines

Deal found 20/2£502

Sat 16/813:45DUB - ORD

Nonstop8h 00mFinnair

Deal found 18/2£510

Tue 8/712:00DUB - MDW

1 stop12h 03mKLM

Deal found 19/2£606

Find flights from Ireland to Chicago within your budget

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 23/4

11:45-16:10

2 stops34h 25m

Chicago O'Hare Intl

Sun 27/4

19:15-18:15

1 stop17h 00m

£335

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/3

13:00-18:45

1 stop11h 45m

Chicago O'Hare Intl

Mon 10/3

18:00-09:50

1 stop10h 50m

£396

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/3

08:50-14:30

1 stop11h 40m

Chicago O'Hare Intl

Tue 11/3

17:00-15:40

2 stops17h 40m

£401

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 3/3

05:55-18:11

2 stops18h 16m

Chicago Midway

Tue 11/3

18:42-15:40

2 stops15h 58m

£405

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/3

05:55-14:30

1 stop14h 35m

Chicago O'Hare Intl

Wed 12/3

17:25-16:40

1 stop18h 15m

£410

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 14/4

09:30-17:36

1 stop14h 06m

Chicago O'Hare Intl

Sun 20/4

10:28-05:30

1 stop13h 02m

£424

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 14/4

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Sun 20/4

15:45-05:10

Nonstop7h 25m

£426

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 3/5

12:15-18:20

1 stop12h 05m

Chicago O'Hare Intl

Tue 13/5

19:25-11:05

1 stop9h 40m

£428

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 12/3

08:00-18:39

1 stop15h 39m

Chicago O'Hare Intl

Wed 19/3

15:00-10:05

1 stop14h 05m

£461

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 4/3

15:20-17:55

Nonstop8h 35m

Chicago O'Hare Intl

Tue 11/3

12:48-05:05

1 stop11h 17m

£478

Flights are sorted by cheapest return flights first.

Deals found on 18/2

Showing 1-10 of 35 results

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?

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 6% on your trip compared to booking a flight at midday.

Weekly flight availability from Ireland to Chicago

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

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

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

To help decide which airline to fly from Ireland to Chicago, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,220 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Delta

8.0

Very Good

8,220 reviews

Delta

8.0

Very Good

8,220 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very Good

8,220 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Finnair

7.6

Good

1,274 reviews

Delta

8.0

Very Good

8,220 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

SWISS

7.5

Good

1,568 reviews

Delta

8.0

Very Good

8,220 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Air France

7.4

Good

1,449 reviews

Delta

8.0

Very Good

8,220 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Related info for your journey

What are the cheapest airlines to fly from Ireland to Chicago one-way?
£329 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 £348 and £353, 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 (57%), Aer Lingus (57%) and British Airways (57%).
What are the cheapest flights from Ireland to Chicago?
The cheapest flight price from Ireland to Chicago is £341. On average you can expect to pay £1,094. The most popular route, (Dublin - Chicago Midway), can usually be booked for £397.
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

Alternative routes for Ireland to Chicago

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

Luton to O'Hare Intl flights

Manchester to O'Hare Intl flights

Manchester to Midway flights

Gatwick to Midway flights

Edinburgh to O'Hare Intl flights

Birmingham to O'Hare Intl flights

Heathrow to St. Louis flights

London City to Midway flights

Glasgow Intl to O'Hare Intl flights

Amsterdam to O'Hare Intl flights

Gatwick to St. Louis flights

Birmingham to Midway flights

Edinburgh to Midway flights

London City to St. Louis flights

Manchester to St. Louis flights

Glasgow Intl to Midway flights

Leeds to O'Hare Intl flights

Istanbul to O'Hare Intl flights

Edinburgh to St. Louis flights

Bristol to O'Hare Intl flights

Bristol to Midway flights

Newcastle upon Tyne to O'Hare Intl flights

Leeds to Midway flights

Belfast Intl to O'Hare Intl flights

Southampton to O'Hare Intl flights

Inverness to O'Hare Intl flights

Stansted to St. Louis flights

Belfast City to O'Hare Intl flights

Newcastle upon Tyne to St. Louis flights

Newcastle upon Tyne to Midway flights

Birmingham to St. Louis flights

Luton to St. Louis flights

Heathrow to Evansville flights

Liverpool to O'Hare Intl flights

Grimsby to O'Hare Intl flights

Dublin to O'Hare Intl flights

Norwich to O'Hare Intl flights

Glasgow Intl to St. Louis flights

Frederic Chopin to O'Hare Intl flights

Newquay to O'Hare Intl flights

Leeds to St. Louis flights

Southampton to Midway flights

Manchester to Peoria flights

Southend to O'Hare Intl flights

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Top 8 airlines flying from Ireland to Chicago

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£275	Average£456	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£308	Average£447	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£310	Average£580	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£314	Average£479	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Aer Lingus	Cheapest£324	Average£445	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
American Airlines	Cheapest£391	Average£524	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Finnair	Cheapest£392	Average£584	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Iberia	Cheapest£401	Average£590	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Fly with Cheapflights

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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Cheap flights from Ireland to Chicago from £329

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.

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 20 February 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Ireland to Chicago

Cheapest flights from Ireland to ChicagoExplore 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 20 February 2025.

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 20 February 2025.

Find flights from Ireland to Chicago within your budget

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.

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?

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 20 February 2025.

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 20 February 2025.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

Reviews of airlines servicing Chicago

To help decide which airline to fly from Ireland to Chicago, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the most reliable airlines from Ireland to Chicago?

What are the cheapest flights from Ireland to Chicago?

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

How can I find direct flights from Ireland to Chicago?

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

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

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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.

Top 8 airlines flying from Ireland to Chicago

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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 20 February 2025.