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£200 Find cheap flights from Ireland to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to O'Hare Intl departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 31/5
Fri 7/6

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These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here's why:

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Flights to O'Hare Intl - Travel Insights & Trends

Get data-powered insights and trends into flights to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a flight to Chicago O'Hare Intl Airport?

The average and cheapest price for all flights to Chicago O'Hare Intl Airport from each origin found by users searching on KAYAK in the last month.
On average, a flight to Chicago O'Hare Intl Airport costs £608. The cheapest price found on KAYAK in the last 2 weeks cost £312 and departed from Dublin. The most popular routes on KAYAK are Dublin to Chicago O'Hare Intl Airport which costs £578 on average, and Shannon to Chicago O'Hare Intl Airport, which costs £853 on average.
See prices from:

What is the cheapest day to fly to Chicago?

The average price of all flights to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Chicago is Wednesday where tickets can be as cheap as £452. On the other hand, the most expensive day to fly is Sunday, where prices are £553 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Chicago O'Hare Intl Airport is February, where tickets cost £322 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is £682 and £578 respectively. For return trips, the best month to travel is February with an average price of £322.

What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?

The average price for all flights to Chicago O'Hare Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Chicago O'Hare Intl Airport is generally in the evening, when flights cost £425 on average. The most expensive time of day to fly to Chicago O'Hare Intl Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £550.

What is a good deal for flights to Chicago O'Hare Intl Airport?

If you’re looking for cheap airfare to Chicago O'Hare Intl Airport, 25% of our users found tickets to Chicago O'Hare Intl Airport for the following prices or less: From Dublin £461 one-way - £445 return.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 14 days before departure.

Which airline offers the most flights to Chicago O'Hare Intl Airport?

Of the 12 airlines that fly to Chicago O'Hare Intl Airport, United Airlines offers the most flights, with around 5,110 per week, followed by American Airlines with 2,588 flights per week.

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

The duration of your flight to Chicago depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to Chicago on KAYAK is from Dublin, which takes 8h 02m.

How many direct flights to Chicago O'Hare Intl Airport are there each day?

There are around 21 direct flights from within Ireland to Chicago O'Hare Intl Airport every day. Most flights depart in the morning, with 08:00 the most common departure time and 61% of flights departing in the morning.

How many direct flights to Chicago O'Hare Intl Airport are there each week?

Each week there are around 142 direct flights from within Ireland to Chicago O'Hare Intl Airport. The most common day for departures is Thursday, with 15% of flights taking off on this day.

How many long-haul flights are there to Chicago O'Hare Intl Airport each week?

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Chicago O'Hare Intl Airport. Instead, there are 28 long-haul flights (6-12 hour flight duration), with the most arriving from Dublin.

How many cities have direct flights to Chicago O'Hare Intl Airport?

From Ireland, there are direct flights to Chicago O'Hare Intl Airport from 2 cities. The city with the most direct flights is Dublin, with 21 direct flights each week.

Good to know - Cheap tickets from Ireland to Chicago

Low season

February

High season

June

Cheapest flight

£200
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from Dublin to Chicago O'Hare Airport

FAQs - booking Chicago flights

  • How far is Chicago from central Chicago?

    The distance between Chicago and the city centre of Chicago is 16 miles.

  • How much is a flight to Chicago?

    On average, a flight to Chicago costs £608. The cheapest price found on KAYAK in the last 2 weeks cost £312 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Chicago with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Chicago

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.

Prefer to fly direct to Chicago O'Hare Intl?

Find which airlines fly direct to O'Hare Intl, which days they fly and book direct flights.

Direct departures

Ireland to Chicago O'Hare Intl

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

See more direct flights

Direct returns

Chicago O'Hare Intl to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

See more direct flights
See more direct flights

Top 5 airlines serving from Ireland to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11159 reviews
7.7Boarding
8.1Crew
6.7Food
7.2Comfort
7.1Entertainment
Airline reviews

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

8.0 ExcellentAnonymous, Apr 2024YUL - ORD
Read more about United Airlines reviews

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Wifi wasn't working on one of the UA flights after boarding.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Very good need to offer better choice of food for business

They should. Heck planes more often not when they are suppose to be leaving causing delays

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."
Cons: "Took far too long for drinks service into the flight. Almost 2 hours in before drinks came around to me"

My luggage never arrived in Miami; still waiting a day later.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

Service and food are good. However, main cabin with the extra cost one pays could be better. I don't see any difference with the rest of the seats in the regular category. The seats are too close to the ones in front. For short flights it is Ok, but for long ones there should be more space.

As with every airline the seats are not built for tall people.

Flight was delayed by well over an hour. Communication was terrible.

Fast check in, easy to navigate, crew were very good, the plane was delayed due to a previous flight and I found the cleanliness a little lacking but overall it was fine

I would not fly with BA again. Packed in like sardines, constant request to turn down air conditioning due to freezing cold for hours and the food was pretty to look at but tasteless!

My wife and I paid for seat selection to be together. My wife and I were on separate rows and the excuse they gave was they changed the plane. Also, I have celiac and asked for a gluten free meal in the ticket profile which they did not have.

Seats, comfort level ugh. Crew was not attentive, only to coach

Pros: they tried to accommodate bc they forgot my gluten free meal Negatives: The flight was freeeeeezing Iberia didn’t communicate my gluten free meal

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Book cheap flights from Ireland to Chicago

Recent return flight deals

 
These are the cheapest return flights to Chicago found on KAYAK in the last 72 hours.
14/5Tue
1 stopBritish Airways
12h 25mDUB-ORD
22/5Wed
1 stopBritish Airways
14h 10mORD-DUB
£357
28/9Sat
directBritish Airways
8h 15mDUB-ORD
7/10Mon
1 stopBritish Airways
11h 25mORD-DUB
£358
14/5Tue
2 stopsAmerican Airlines
16h 29mDUB-ORD
22/5Wed
1 stopAmerican Airlines
14h 10mORD-DUB
£362
6/6Thu
directFinnair
8h 02mDUB-ORD
13/6Thu
1 stopFinnair
14h 30mORD-DUB
£378
6/6Thu
directFinnair
8h 02mDUB-ORD
13/6Thu
1 stopFinnair
14h 30mORD-DUB
£378
12/8Mon
1 stopIcelandair
12h 25mDUB-ORD
31/8Sat
1 stopIcelandair
9h 40mORD-DUB
£395
1/8Thu
1 stopIcelandair
12h 25mDUB-ORD
16/8Fri
1 stopIcelandair
9h 40mORD-DUB
£401
17/5Fri
1 stopIberia
11h 59mDUB-ORD
14/6Fri
directIberia
7h 20mORD-DUB
£521
31/5Fri
1 stopUnited Airlines
13h 44mDUB-ORD
12/6Wed
directUnited Airlines
7h 50mORD-DUB
£523
12/5Sun
directUnited Airlines
8h 30mDUB-ORD
16/5Thu
1 stopUnited Airlines
19h 32mORD-DUB
£598

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Chicago found on KAYAK in the last 72 hours.
4/6Tue
2 stops
26h 04mDUB-ORD
£200
4/6Tue
3 stops
35h 02mDUB-ORD
£212
10/5Fri
3 stops
31h 43mDUB-ORD
£251
5/9Thu
1 stopIcelandair
12h 00mDUB-ORD
£271
10/5Fri
2 stops
41h 59mDUB-ORD
£276
4/6Tue
1 stopIcelandair
12h 00mDUB-ORD
£303
2/10Wed
directFinnair
8h 15mDUB-ORD
£460
16/6Sun
directFinnair
8h 02mDUB-ORD
£503
4/6Tue
directBritish Airways
8h 25mDUB-ORD
£514
18/5Sat
directUnited Airlines
8h 30mDUB-ORD
£858

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Recent domestic flight deals

15/5Wed
multi-stopSpirit Airlines
8h 35mDFW-ORD
21/5Tue
directSpirit Airlines
2h 29mORD-DFW
£46
15/5Wed
directSpirit Airlines
2h 26mDFW-ORD
20/5Mon
directSpirit Airlines
2h 29mORD-DFW
£54
20/8Tue
directFrontier
2h 41mDFW-ORD
27/8Tue
directFrontier
2h 37mORD-DFW
£77
16/5Thu
multi-stop
6h 24mDFW-ORD
21/5Tue
direct
2h 29mORD-DFW
£80
15/5Wed
multi-stop
8h 35mDFW-ORD
20/5Mon
multi-stop
4h 52mORD-DFW
£85
16/5Thu
directFrontier
2h 45mDFW-ORD
20/5Mon
multi-stopFrontier
4h 52mORD-DFW
£98
5/6Wed
directAmerican Airlines
2h 18mBWI-ORD
12/6Wed
directAmerican Airlines
2h 03mORD-BWI
£119
5/6Wed
directAmerican Airlines
2h 18mBWI-ORD
12/6Wed
multi-stopAmerican Airlines
6h 04mORD-BWI
£156
12/6Wed
directUnited Airlines
2h 35mEWR-ORD
18/6Tue
directUnited Airlines
2h 20mORD-EWR
£167
24/7Wed
directUnited Airlines
2h 37mLGA-ORD
27/7Sat
directUnited Airlines
2h 21mORD-LGA
£174

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Last minute flights to O'Hare Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Chicago that are departing in the next 10 days.
2/5Thu
multi-stopJetBlue
12h 58mDUB-ORD
13/5Mon
multi-stopJetBlue
17h 40mORD-DUB
£560
6/5Mon
multi-stopDelta
17h 50mDUB-ORD
13/5Mon
multi-stopDelta
12h 55mORD-DUB
£2,041
6/5Mon
direct
8h 30mDUB-ORD
13/5Mon
multi-stop
20h 15mORD-DUB
£2,058
5/5Sun
multi-stopKLM
11h 45mDUB-ORD
15/5Wed
multi-stopKLM
13h 50mORD-DUB
£2,401
5/5Sun
multi-stopKLM
17h 34mDUB-ORD
15/5Wed
multi-stopKLM
13h 50mORD-DUB
£2,555
6/5Mon
multi-stopKLM
11h 45mDUB-ORD
15/5Wed
multi-stopKLM
13h 50mORD-DUB
£2,666
6/5Mon
multi-stopKLM
11h 40mDUB-ORD
15/5Wed
multi-stopKLM
11h 40mORD-DUB
£2,896
6/5Mon
multi-stopKLM
11h 40mDUB-ORD
11/5Sat
multi-stopKLM
14h 10mORD-DUB
£2,902
5/5Sun
multi-stopSWISS
13h 25mDUB-ORD
9/5Thu
multi-stopSWISS
12h 35mORD-DUB
£3,695
5/5Sun
multi-stopKLM
14h 25mDUB-ORD
11/5Sat
multi-stopKLM
14h 10mORD-DUB
£4,277

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Flights to Chicago

Destination:

Chicago (ORD)United States

Cabin classes:

£1,643
£1,078
£312

Popular routes

The most searched flights to Chicago by KAYAK users.

Browse destinations:

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  • United States » 
  • Chicago » 
  • Chicago O'Hare Airport