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Cheap flights from Ireland to Chicago O'Hare Intl Airport from £326

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Ireland to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ireland (IE0) to O'Hare Intl (ORD). 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 21 January 2025.

Round-trip from

£326

Good round-trip deal

£499 or less

Good one-way deal

£458 or less
United Airlines
  • United Airlines
  • 14/4-20/4
  • 2 total stops
  • 22h 43m total
  • Ireland to Chicago
Price to beat on a round-trip flight from Ireland to Chicago O'Hare Intl.
Price to beat on a one-way flight from Ireland to Chicago O'Hare Intl.

Find flight deals from Ireland to O'Hare Intl

Cheapest flights from Ireland to O'Hare Intl
Explore the most affordable flight options available from Ireland to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2025.

Mon 14/409:50DUB - ORD
1 stop11h 01mUnited Airlines
Sun 20/413:28ORD - DUB
1 stop11h 42mUnited Airlines
Deal found 20/1£326
Fri 2/508:55DUB - ORD
1 stop11h 15mMultiple Airlines
Sat 10/517:15ORD - DUB
1 stop15h 45mMultiple Airlines
Deal found 21/1£329
Wed 5/318:40DUB - ORD
1 stop24h 15mSWISS
Sun 9/320:05ORD - DUB
1 stop35h 00mSWISS
Deal found 20/1£330
Wed 4/609:40DUB - ORD
1 stop14h 10mFinnair
Sun 24/822:20ORD - DUB
Nonstop7h 20mFinnair
Deal found 20/1£337
Mon 17/208:50DUB - ORD
1 stop11h 40mDelta
Mon 24/216:58ORD - DUB
2 stops16h 42mDelta
Deal found 20/1£339
Wed 4/611:00DUB - ORD
1 stop12h 00mBritish Airways
Sun 24/821:15ORD - DUB
1 stop11h 00mBritish Airways
Deal found 20/1£341
Thu 23/1008:55DUB - ORD
1 stop11h 15mKLM
Tue 4/1112:17ORD - DUB
1 stop13h 28mKLM
Deal found 21/1£374
Wed 5/311:30DUB - ORD
Nonstop8h 30mAer Lingus
Mon 10/322:45ORD - DUB
1 stop11h 55mAer Lingus
Deal found 20/1£424
Mon 14/412:20DUB - ORD
2 stops33h 50mScandinavian Airlines
Sun 20/419:15ORD - DUB
2 stops33h 40mScandinavian Airlines
Deal found 20/1£427
Wed 5/311:30DUB - ORD
Nonstop8h 30mAmerican Airlines
Mon 10/318:00ORD - DUB
1 stop11h 15mAmerican Airlines
Deal found 21/1£451
Fri 27/609:30DUB - ORD
1 stop15h 50mIberia
Mon 28/722:25ORD - DUB
Nonstop7h 15mIberia
Deal found 21/1£477
Wed 22/1011:35DUB - ORD
Nonstop8h 00mLufthansa
Sun 2/1115:55ORD - DUB
1 stop13h 05mLufthansa
Deal found 21/1£486

Find flights from Ireland to O'Hare Intl within your budget

Customise your flight search to find flights from Ireland to O'Hare Intl 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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 14/4

09:50-14:51

1 stop11h 01m

Chicago O'Hare Intl

Sun 20/4

20:15-09:45

Nonstop7h 30m

£326

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 2/5

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Sat 10/5

17:15-15:00

1 stop15h 45m

£329

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/3

18:40-12:55

1 stop24h 15m

Chicago O'Hare Intl

Sun 9/3

20:05-12:05

1 stop35h 00m

£330

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 4/6

09:40-17:50

1 stop14h 10m

Chicago O'Hare Intl

Sun 24/8

22:20-11:40

Nonstop7h 20m

£337

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 17/2

08:50-14:30

1 stop11h 40m

Chicago O'Hare Intl

Mon 24/2

16:58-15:40

2 stops16h 42m

£339

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 4/6

11:00-17:00

1 stop12h 00m

Chicago O'Hare Intl

Sun 24/8

21:15-14:15

1 stop11h 00m

£341

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/3

11:30-14:00

Nonstop8h 30m

Chicago O'Hare Intl

Mon 10/3

22:45-15:40

1 stop11h 55m

£424

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 14/4

12:20-16:10

2 stops33h 50m

Chicago O'Hare Intl

Sun 20/4

19:15-10:55

2 stops33h 40m

£427

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/3

11:30-14:00

Nonstop8h 30m

Chicago O'Hare Intl

Mon 10/3

18:00-10:15

1 stop11h 15m

£451

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 27/6

09:30-19:20

1 stop15h 50m

Chicago O'Hare Intl

Mon 28/7

22:25-11:40

Nonstop7h 15m

£477

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 23 results
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Best time to book a flight from Ireland to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl

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

What is the cheapest month to book a flight from Ireland to Chicago O'Hare Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Ireland to Chicago O'Hare Intl Airport (average of £595). Flying from Ireland to Chicago O'Hare Intl Airport 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 ORD?

Find hourly flight availability from Ireland to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 9% on flights from Ireland to Chicago O'Hare Intl Airport by exploring options for tickets in the morning.

Weekly flight availability from Ireland to Chicago O'Hare Intl Airport

Explore weekly flight availability from Ireland to O'Hare Intl. 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 21 January 2025.

The most flights from IE0 to ORD 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 O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 O'Hare Intl Airport when rainfall is around 43.0 mm.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 21 January 2025.
See what other customers who have flown with United Airlines, SWISS and TAP AIR PORTUGAL from Ireland to Chicago have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,521 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

8.0
Very Good
8,521 reviews
8.0
Very Good
8,521 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

7.8
Good
1,341 reviews
8.0
Very Good
8,521 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

7.6
Good
1,286 reviews
8.0
Very Good
8,521 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

7.5
Good
1,600 reviews
8.0
Very Good
8,521 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

7.4
Good
8,984 reviews
8.0
Very Good
8,521 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

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 O'Hare Intl. 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 O'Hare Intl Airport one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £352. Users have also found prices from £357 and £425 on Icelandair and British Airways, respectively.

  • What are the most reliable airlines from Ireland to Chicago O'Hare Intl Airport?

    Consider American Airlines (65%), Aer Lingus (65%) or British Airways (65%) when booking your flight. These represent the most reliable airlines when flying from Ireland to Chicago O'Hare Intl Airport.

  • What are the cheapest flights from Ireland to Chicago O'Hare Intl Airport?

    On average you can expect to pay £1,156 for a flight from Ireland to Chicago O'Hare Intl Airport. The cheapest flight overall is £358 while the most popular route, (Dublin - Chicago O'Hare Intl) is currently priced at £497.

  • Can I find deals for flights from Ireland to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Ireland to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to O'Hare Intl.

  • Can I find deals for business class flights from Ireland to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Ireland to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Ireland to Chicago O'Hare Intl Airport (average of £595). Flying from Ireland to Chicago O'Hare Intl Airport 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

Travelling to a place near Ireland?

Book flights to Ireland if you plan to visit one of these locations
Evanston
Downers Grove
Schaumburg
Elk Grove Village
Beloit
Rosemont

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Top 7 airlines flying from Ireland to O'Hare Intl

Discover the top 7 airlines that operate flights from Ireland to O'Hare Intl. 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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£282Average£468FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£315Average£449FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£318Average£612FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£321Average£491FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£329Average£452FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapest£411Average£616FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£517Average£610FlexibilityNo 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 O'Hare Intl?

When you search for this flight from Ireland to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ireland to O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from Ireland to O'Hare Intl 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 O'Hare Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ireland to O'Hare Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ireland to O'Hare Intl become cheaper?

Yes! Start tracking prices for Ireland to O'Hare Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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