How long is the flight from Ireland to Chicago O'Hare Intl Airport?

There are many flights that can get you from Ireland to Chicago O'Hare Intl Airport in 14h. Fly via Scandinavian Airlines or Lufthansa to get the fastest option. The distance between Ireland and Chicago O'Hare Intl Airport is about 3661 mi. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to fly from Ireland to Chicago O'Hare Intl Airport one-way?

For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £373. Users have also found prices from £378 and £384 on JetBlue and United Airlines, respectively.

What is the cheapest day to fly from Ireland to Chicago O'Hare Intl Airport?

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

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.

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).

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

On average you can expect to pay £1,015 for a flight from Ireland to Chicago O'Hare Intl Airport. The cheapest flight overall is £301 while the most popular route, (Dublin - Chicago O'Hare Intl) is currently priced at £297.

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

Consider Iberia (83%), American Airlines (75%) or Aer Lingus (75%) when booking your flight. These represent the most reliable airlines when flying from Ireland to Chicago O'Hare Intl Airport.

What are the most popular airlines that fly from Ireland to Chicago O'Hare Intl Airport?

Before booking your flight from Ireland to Chicago O'Hare Intl Airport check out the most popular airlines for this route: American Airlines, Finnair or British Airways.

What is the cheapest day to fly round-trip from Ireland to Chicago O'Hare Intl Airport?

Users have found that flying from Ireland to Chicago O'Hare Intl Airport on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Ireland to Chicago O'Hare Intl Airport?

Users have found that booking a flight from Ireland to Chicago O'Hare Intl Airport at least 56 days early can save you up to 44% on average compared to booking a flight this week. If booking 56 days before your flight isn’t an option for you, users have found flights from Ireland to Chicago O'Hare Intl Airport for as little as £361 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 £434 for flights departing within the next 3 days.

What is the cheapest month to fly from Ireland to Chicago O'Hare Intl Airport?

Flights from Ireland to Chicago O'Hare Intl Airport lean towards being more expensive in July. Prices are generally better when you fly from Ireland to Chicago O'Hare Intl Airport in January, with the cheapest ticket starting at £291.

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.

£330+ Cheap Flights from Ireland to Chicago O'Hare Intl Airport

Cheap flight deals from Ireland to O'Hare Intl

Round-trip from	£330
Popular in	July
Cheapest in	January
Average price	£375
Good round-trip deal	£466 or less
Good one-way deal	£491 or less

Scandinavian Airlines
29/10-2/11
4 total stops
54h 30m total
Ireland to Chicago

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£55 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from Ireland to Chicago O'Hare Intl.

Search Deals

Price to beat on a one-way flight from Ireland to Chicago O'Hare Intl.

Search Deals

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 15 September 2025.

Wed 29/1011:30DUB - ORD

2 stops36h 15mScandinavian Airlines

Sun 2/1119:20ORD - DUB

2 stops18h 15mScandinavian Airlines

Deal found 14/9£330

Tue 28/1005:00DUB - ORD

1 stop16h 20mMultiple Airlines

Tue 4/1118:50ORD - DUB

1 stop16h 55mMultiple Airlines

Deal found 13/9£335

Sun 2/1105:10DUB - ORD

1 stop20h 55mLufthansa

Sun 9/1118:35ORD - DUB

Nonstop7h 35mLufthansa

Deal found 14/9£335

Fri 10/1009:20DUB - ORD

1 stop35h 40mMultiple Airlines

Sun 12/1015:45ORD - DUB

1 stop14h 25mMultiple Airlines

Deal found 12/9£336

Sun 2/1105:10DUB - ORD

1 stop20h 55mMultiple Airlines

Sun 9/1118:50ORD - DUB

1 stop16h 55mMultiple Airlines

Deal found 14/9£337

Mon 13/1005:55DUB - ORD

1 stop15h 00mLufthansa

Tue 21/1020:20ORD - DUB

Nonstop7h 25mLufthansa

Deal found 12/9£338

Mon 13/1005:55DUB - ORD

1 stop13h 00mLufthansa

Mon 20/1020:20ORD - DUB

Nonstop7h 25mLufthansa

Deal found 13/9£338

Mon 27/1005:55DUB - ORD

1 stop14h 25mDelta

Mon 3/1117:20ORD - DUB

1 stop16h 25mDelta

Deal found 12/9£339

Tue 11/1108:50DUB - ORD

2 stops18h 00mBritish Airways

Mon 17/1120:40ORD - DUB

1 stop14h 25mBritish Airways

Deal found 14/9£340

Sun 26/1005:55DUB - ORD

1 stop14h 25mMultiple Airlines

Sat 15/1117:20ORD - DUB

1 stop23h 35mMultiple Airlines

Deal found 13/9£341

Fri 10/1009:20DUB - ORD

1 stop35h 40mUnited Airlines

Sun 12/1010:45ORD - DUB

1 stop14h 25mUnited Airlines

Deal found 12/9£341

Sun 9/1110:45DUB - ORD

2 stops18h 46mBritish Airways

Sun 16/1117:30ORD - DUB

2 stops15h 35mBritish Airways

Deal found 14/9£342

Best flights from Ireland to O'Hare Intl
Discover carefully curated flight deals from Ireland to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2025.

Wed 29/1011:30DUB - ORD

2 stops36h 15mScandinavian Airlines

Sun 2/1119:20ORD - DUB

2 stops18h 15mScandinavian Airlines

Deal found 14/9£330

Sat 22/1105:10DUB - ORD

1 stop14h 00mLufthansa

Mon 24/1118:35ORD - DUB

Nonstop7h 35mLufthansa

Deal found 11/9£335

Mon 27/1005:55DUB - ORD

1 stop14h 25mDelta

Mon 3/1117:20ORD - DUB

1 stop16h 25mDelta

Deal found 12/9£339

Wed 12/1108:50DUB - ORD

2 stops18h 00mBritish Airways

Sun 16/1120:40ORD - DUB

1 stop12h 25mBritish Airways

Deal found 14/9£340

Sun 26/1005:55DUB - ORD

1 stop14h 25mMultiple Airlines

Mon 3/1117:20ORD - DUB

1 stop16h 25mMultiple Airlines

Deal found 12/9£340

Thu 12/211:30DUB - ORD

2 stops35h 15mScandinavian Airlines

Thu 26/219:20ORD - DUB

1 stop17h 00mScandinavian Airlines

Deal found 13/9£332

Mon 20/1005:55DUB - ORD

1 stop13h 00mLufthansa

Thu 30/1019:35ORD - DUB

Nonstop7h 35mLufthansa

Deal found 13/9£338

Wed 29/1005:55DUB - ORD

1 stop14h 25mDelta

Tue 4/1117:20ORD - DUB

1 stop16h 25mDelta

Deal found 13/9£339

Tue 11/1110:55DUB - ORD

2 stops15h 55mBritish Airways

Mon 17/1111:48ORD - DUB

2 stops16h 02mBritish Airways

Deal found 14/9£340

Sun 26/1005:55DUB - ORD

1 stop14h 25mDelta

Sun 16/1117:20ORD - DUB

1 stop16h 25mDelta

Deal found 13/9£339

Direct flights from Ireland to O'Hare Intl
Explore direct flight options from Ireland to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2025.

Wed 26/1110:40DUB - ORD

Nonstop8h 50mUnited Airlines

Mon 1/1218:35ORD - DUB

Nonstop7h 35mUnited Airlines

Deal found 13/9£348

Thu 6/1110:40DUB - ORD

Nonstop8h 50mUnited Airlines

Wed 12/1118:35ORD - DUB

Nonstop7h 35mUnited Airlines

Deal found 12/9£349

Sat 8/1110:40DUB - ORD

Nonstop8h 50mUnited Airlines

Mon 17/1118:35ORD - DUB

Nonstop7h 35mUnited Airlines

Deal found 14/9£349

Thu 16/1011:35DUB - ORD

Nonstop8h 00mUnited Airlines

Thu 23/1020:20ORD - DUB

Nonstop7h 25mUnited Airlines

Deal found 12/9£352

Wed 22/1011:35DUB - ORD

Nonstop8h 00mUnited Airlines

Thu 30/1019:35ORD - DUB

Nonstop7h 35mUnited Airlines

Deal found 14/9£352

Sat 11/1011:35DUB - ORD

Nonstop8h 00mMultiple Airlines

Sat 18/1020:20ORD - DUB

Nonstop7h 25mMultiple Airlines

Deal found 13/9£386

Fri 10/1011:35DUB - ORD

Nonstop8h 00mLufthansa

Sun 12/1020:20ORD - DUB

Nonstop7h 25mLufthansa

Deal found 12/9£387

Mon 3/1110:40DUB - ORD

Nonstop8h 50mUnited Airlines

Sun 9/1118:35ORD - DUB

Nonstop7h 35mUnited Airlines

Deal found 12/9£391

Sun 2/1110:40DUB - ORD

Nonstop8h 50mLufthansa

Sun 9/1118:35ORD - DUB

Nonstop7h 35mLufthansa

Deal found 13/9£392

Sun 12/1011:35DUB - ORD

Nonstop8h 00mLufthansa

Thu 23/1020:20ORD - DUB

Nonstop7h 25mLufthansa

Deal found 12/9£394

Sat 27/911:35DUB - ORD

Nonstop8h 00mUnited Airlines

Wed 8/1020:20ORD - DUB

Nonstop7h 25mUnited Airlines

Deal found 14/9£395

Thu 4/1210:40DUB - ORD

Nonstop8h 50mUnited Airlines

Sun 7/1218:35ORD - DUB

Nonstop7h 35mUnited Airlines

Deal found 12/9£396

Last-minute flights from Ireland to O'Hare Intl
Discover last-minute flight deals from Ireland to O'Hare Intl. Data last updated 15 September 2025 and is based on user searches.

Fri 10/1009:20DUB - ORD

1 stop35h 40mMultiple Airlines

Sun 12/1015:45ORD - DUB

1 stop14h 25mMultiple Airlines

Deal found 12/9£336

Fri 10/1009:20DUB - ORD

1 stop35h 40mUnited Airlines

Sun 12/1010:45ORD - DUB

1 stop14h 25mUnited Airlines

Deal found 12/9£341

Mon 13/1005:55DUB - ORD

1 stop15h 00mLufthansa

Tue 21/1020:20ORD - DUB

Nonstop7h 25mLufthansa

Deal found 12/9£338

Mon 13/1005:55DUB - ORD

1 stop13h 00mLufthansa

Mon 20/1020:20ORD - DUB

Nonstop7h 25mLufthansa

Deal found 13/9£338

Sun 26/1005:55DUB - ORD

1 stop14h 25mMultiple Airlines

Mon 3/1117:20ORD - DUB

1 stop16h 25mMultiple Airlines

Deal found 12/9£340

Sun 26/1005:55DUB - ORD

1 stop14h 25mMultiple Airlines

Sat 15/1117:20ORD - DUB

1 stop23h 35mMultiple Airlines

Deal found 13/9£341

Mon 27/1005:55DUB - ORD

1 stop14h 25mDelta

Mon 3/1117:20ORD - DUB

1 stop16h 25mDelta

Deal found 12/9£339

Tue 28/1005:00DUB - ORD

1 stop16h 20mMultiple Airlines

Tue 4/1118:50ORD - DUB

1 stop16h 55mMultiple Airlines

Deal found 13/9£335

Wed 29/1011:30DUB - ORD

2 stops36h 15mScandinavian Airlines

Sun 2/1119:20ORD - DUB

2 stops18h 15mScandinavian Airlines

Deal found 14/9£330

Fri 31/1008:50DUB - ORD

1 stop11h 30mDelta

Tue 4/1116:15ORD - DUB

2 stops17h 30mDelta

Deal found 13/9£342

One-way flights from Ireland to O'Hare Intl
Search for one-way flight options from Ireland to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 15 September 2025.

Wed 15/1011:35DUB - ORD

Nonstop8h 25mAer Lingus

Deal found 12/9£373

Tue 21/1010:40DUB - ORD

1 stop13h 38mJetBlue

Deal found 14/9£378

Sat 4/1011:30DUB - ORD

1 stop12h 53mJetBlue

Deal found 12/9£383

Sun 5/1011:35DUB - ORD

Nonstop8h 00mUnited Airlines

Deal found 13/9£384

Thu 2/1010:40DUB - ORD

1 stop14h 15mJetBlue

Deal found 12/9£396

Sat 18/1011:30DUB - ORD

1 stop12h 55mJetBlue

Deal found 14/9£408

Mon 6/1011:30DUB - ORD

1 stop15h 21mJetBlue

Deal found 12/9£411

Mon 8/1211:30DUB - ORD

Nonstop8h 30mAer Lingus

Deal found 11/9£415

Sat 11/1011:30DUB - ORD

1 stop12h 55mJetBlue

Deal found 13/9£422

Wed 8/1010:40DUB - ORD

1 stop13h 38mJetBlue

Deal found 12/9£425

Mon 20/1012:45DUB - ORD

1 stop31h 05mBritish Airways

Deal found 14/9£429

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 29/10

11:30-18:45

2 stops36h 15m

Chicago O'Hare Intl

Sun 2/11

19:20-19:35

2 stops18h 15m

£330

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 12/2

11:30-16:45

2 stops35h 15m

Chicago O'Hare Intl

Thu 26/2

19:20-18:20

1 stop17h 00m

£332

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 22/11

05:10-13:10

1 stop14h 00m

Chicago O'Hare Intl

Mon 24/11

18:35-08:10

Nonstop7h 35m

£335

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 20/10

05:55-12:55

1 stop13h 00m

Chicago O'Hare Intl

Thu 30/10

19:35-08:10

Nonstop7h 35m

£338

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 27/10

05:55-15:20

1 stop14h 25m

Chicago O'Hare Intl

Mon 3/11

17:20-15:45

1 stop16h 25m

£339

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 29/10

05:55-15:20

1 stop14h 25m

Chicago O'Hare Intl

Tue 4/11

17:20-15:45

1 stop16h 25m

£339

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 26/10

05:55-15:20

1 stop14h 25m

Chicago O'Hare Intl

Sun 16/11

17:20-15:45

1 stop16h 25m

£339

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 12/11

08:50-20:50

2 stops18h 00m

Chicago O'Hare Intl

Sun 16/11

20:40-15:05

1 stop12h 25m

£340

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 26/10

05:55-15:20

1 stop14h 25m

Chicago O'Hare Intl

Mon 3/11

17:20-15:45

1 stop16h 25m

£340

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 11/11

10:55-20:50

2 stops15h 55m

Chicago O'Hare Intl

Mon 17/11

11:48-09:50

2 stops16h 02m

£340

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 20 results

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.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Chicago O'Hare Intl Airport

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?

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 afternoon.

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

The most flights from IE0 to ORD are scheduled on a Saturday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

Reviews of airlines servicing O'Hare Intl

Read reviews from past customers who have flown with Finnair, United Airlines, andAer Lingus from Ireland to Chicago O'Hare Intl Airport. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Finnair

7.6

Good

1,323 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

United Airlines

7.4

Good

8,931 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Aer Lingus

7.2

Good

1,271 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Icelandair

7.0

Good

546 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

British Airways

6.7

Okay

7,361 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

How long is the flight from Ireland to Chicago O'Hare Intl Airport?
There are many flights that can get you from Ireland to Chicago O'Hare Intl Airport in 14h. Fly via Scandinavian Airlines or Lufthansa to get the fastest option. The distance between Ireland and Chicago O'Hare Intl Airport is about 3661 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from Ireland to Chicago O'Hare Intl Airport one-way?
For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £373. Users have also found prices from £378 and £384 on JetBlue and United Airlines, respectively.
What are the most reliable airlines from Ireland to Chicago O'Hare Intl Airport?
Consider Iberia (83%), American Airlines (75%) or Aer Lingus (75%) 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 £1,015 for a flight from Ireland to Chicago O'Hare Intl Airport. The cheapest flight overall is £301 while the most popular route, (Dublin - Chicago O'Hare Intl) is currently priced at £297.
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

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Alternative routes for Ireland to O'Hare Intl

Heathrow to O'Hare Intl flights

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Gatwick to Midway flights

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Manchester to Midway flights

Bruxelles-National to O'Hare Intl flights

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Edinburgh to Midway flights

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Birmingham to Midway flights

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London City to Midway flights

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Newcastle upon Tyne to Midway flights

Belfast Intl to O'Hare Intl flights

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Glasgow Intl to Midway flights

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Cardiff to Midway flights

Liverpool to O'Hare Intl flights

Amsterdam to O'Hare Intl flights

Cardiff to O'Hare Intl flights

Southampton to O'Hare Intl flights

Madrid to O'Hare Intl flights

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Exeter to O'Hare Intl flights

Darlington to Midway flights

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Top 6 airlines flying from Ireland to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£295	Average£405	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£296	Average£481	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Finnair	Cheapest£312	Average£529	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Aer Lingus	Cheapest£333	Average£449	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
United Airlines	Cheapest£343	Average£636	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest£484	Average£584	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

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?

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Cheap flights from Ireland to Chicago O'Hare Intl Airport from £330

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to O'Hare Intl

Keep the following information in mind while searching for Ireland to O'Hare Intl flight deals. Data was last updated 15 September 2025.

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Good round-trip deal

Good one-way deal

Find flight deals from Ireland to O'Hare Intl

Cheapest flights from Ireland to O'Hare IntlExplore 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 15 September 2025.

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 15 September 2025.

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Use the filters below to find and compare flights from Ireland to Chicago O'Hare Intl Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Chicago O'Hare Intl Airport

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

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 15 September 2025.

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

Reviews of airlines servicing O'Hare Intl

Read reviews from past customers who have flown with Finnair, United Airlines, andAer Lingus from Ireland to Chicago O'Hare Intl Airport. Reviews also offer insight into each airline's 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 O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Ireland to Chicago O'Hare Intl Airport?

What are the cheapest airlines to fly from Ireland to Chicago O'Hare Intl Airport one-way?

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

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

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

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

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

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

Travelling to a place near Chicago O'Hare Intl Airport?

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Alternative routes for Ireland to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ireland to O'Hare Intl

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

Can Cheapflights find flights from Ireland to O'Hare Intl with no change fees?

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

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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 15 September 2025.