Find flights
Insights
When to book
FAQs & Tips
Direct Flights
Airlines
Deals

$252 Find cheap flights from Ireland to Chicago O'Hare Airport

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 6/3. 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
週五 6/7
週五 6/14

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare Airport

 
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 travelers have searched 43,707,506 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Flights to O'Hare Intl - Travel Insights & Trends

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

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 Tuesday where tickets can be as cheap as $527. On the other hand, the most expensive day to fly is Sunday, where prices are $658 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 November, where tickets cost $442 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 $841 and $737 respectively. For return trips, the best month to travel is November with an average price of $442.

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 $509 on average. The most expensive time of day to fly to Chicago O'Hare Intl Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is $650.

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 $493 one-way - $667 round-trip, from Shannon $1,108 one-way - $778 round-trip.

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 78 days before departure.

Which airlines fly to Chicago O'Hare Airport?

If you’re traveling from Ireland, you might fly to Chicago O'Hare Airport with American Airlines, Aer Lingus, or United Airlines as they are the most frequent flyers. See the amount of flights per week for popular airlines flying to Chicago O'Hare Airport.

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 5,249 per week, followed by American Airlines with 4,261 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 routes to Chicago on KAYAK are from Dublin, which takes 8h 00m, Milltown (Kerry), which takes 13h 30m, Shannon, which takes 14h 12m, and Cork, which takes 19h 24m.

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

There are around 1,542 direct flights from within Ireland to Chicago O'Hare Intl Airport every day. Most flights depart in the morning, with 6:00 am the most common departure time and 52% 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 10,790 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 42 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 35 direct flights each week.

Good to know

Low season

February

High season

June

Cheapest flight

$252
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Dublin to Chicago

FAQs - booking Chicago O'Hare Airport flights

  • How far is Chicago O'Hare Airport from central Chicago?

    The city center of Chicago is 16 miles from Chicago O'Hare Airport.

  • How much is a flight to Chicago?

    On average, a flight to Chicago costs $709. The cheapest price found on KAYAK in the last 2 weeks cost $412 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights to Chicago O'Hare Airport?

    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 O'Hare Airport.

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

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

  • What is the Hacker Fare option on flights to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago O'Hare Airport 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 O'Hare Airport?

    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 O'Hare Airport 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 O'Hare Airport

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

Prefer to fly non-stop to Chicago O'Hare Intl?

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

Nonstop 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, +77 more

ANA, Aer Lingus, +78 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, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

See more direct flights

Nonstop 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, +77 more

ANA, Aer Lingus, +78 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, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 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 11073 reviews
6.7Food
8.1Crew
7.1Entertainment
7.7Boarding
7.2Comfort
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!

The CX617 from HK to BKK was delayed more than 1.5 hours.

The plane was old and in new of a cleaning up and renovating on the interior. Seats and carpets were very worn and dirty looking. Cushioning on the seats was broken down and not as comfortable as newer jet seats. Food was a little below average but okay. Staff were friendly and hard working but did not pick up debris or food they spilled when collecting from the customers. But they were very helpful and professional.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

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.

I paid for premium economy but BA oversold the seats and we ended up being downgraded. Not acceptable given how much we paid for the flight. We were also separated to 2 different areas so not only did we not get the service we paid for, we didn’t even get to sit together. I’m not happy at this treatment by BA because of corporate greed.

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

Flight was an Iberia Flight on Level but seemed to be outsourced to a 3rd airline - Wamos. Seating pattern was different than when booked, we waited on the JETBRIDGE for 45 minutes to board, food was terrible. Movie options were limited to about 20 and very old, TV shows was limited to about 15 and equally as old. Staff was fine but definitely the "b-team". Landed about 60 minutes early and waited on the runway for 45 minutes - despite that Logan Airport in Boston recently added new gates. Mediocre experience at best.

Improve food options. Do not charge so much for checked bags. As some who paid 990 EUR fir the round trip international flight it is horrendous to pay another 140 for 1 checked bag.

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

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

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.

Book cheap flights from Ireland to Chicago

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Chicago found on KAYAK in the last 72 hours.
10/26週六
nonstop
8h 15mDUB-ORD
11/2週六
1 stop
19h 00mORD-DUB
$403
8/8週四
1 stopIcelandair
12h 25mDUB-ORD
8/24週六
1 stopIcelandair
9h 40mORD-DUB
$406
7/22週一
1 stopIcelandair
12h 25mDUB-ORD
7/29週一
1 stopIcelandair
30h 50mORD-DUB
$407
8/24週六
nonstopAer Lingus
8h 25mDUB-ORD
8/31週六
nonstopAer Lingus
7h 30mORD-DUB
$462
10/9週三
2 stopsAmerican Airlines
23h 12mDUB-ORD
10/16週三
1 stopAmerican Airlines
26h 40mORD-DUB
$470
9/10週二
2 stopsAmerican Airlines
16h 15mDUB-ORD
9/14週六
1 stopAmerican Airlines
28h 35mORD-DUB
$471
6/14週五
nonstopIberia
8h 02mDUB-ORD
6/30週日
nonstopIberia
7h 20mORD-DUB
$573
7/9週二
nonstopIberia
8h 00mDUB-ORD
7/24週三
nonstopIberia
7h 15mORD-DUB
$648
5/26週日
nonstopUnited Airlines
8h 10mSNN-ORD
6/5週三
nonstopUnited Airlines
7h 25mORD-SNN
$652
5/24週五
nonstopUnited Airlines
8h 10mSNN-ORD
6/6週四
nonstopUnited Airlines
7h 25mORD-SNN
$653

Search by stops

Search by airline

Search by price

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.
6/3週一
3 stops
58h 19mDUB-ORD
$252
6/4週二
2 stops
26h 04mDUB-ORD
$253
6/4週二
2 stops
26h 04mDUB-ORD
$266
9/2週一
nonstopAer Lingus
8h 25mDUB-ORD
$493
8/22週四
nonstopAer Lingus
8h 25mDUB-ORD
$495
9/22週日
nonstopIberia
8h 15mDUB-ORD
$564
10/1週二
nonstopIberia
8h 15mDUB-ORD
$569
6/11週二
nonstopAmerican Airlines
8h 02mDUB-ORD
$575
9/5週四
2 stopsAmerican Airlines
16h 20mDUB-ORD
$583
6/29週六
nonstopUnited Airlines
8h 10mSNN-ORD
$1,082

Search by stops

Search by airline

Search by price

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.
5/12週日
multi-stopIcelandair
12h 05mDUB-ORD
6/17週一
multi-stopIcelandair
30h 50mORD-DUB
$549
5/10週五
multi-stopIcelandair
12h 05mDUB-ORD
11/1週五
multi-stopIcelandair
9h 45mORD-DUB
$557
5/12週日
nonstopUnited Airlines
8h 30mDUB-ORD
5/19週日
nonstopUnited Airlines
7h 50mORD-DUB
$648
5/12週日
nonstopUnited Airlines
8h 30mDUB-ORD
5/19週日
multi-stopUnited Airlines
18h 50mORD-DUB
$653
5/11週六
multi-stopBritish Airways
12h 15mDUB-ORD
6/15週六
multi-stopBritish Airways
11h 15mORD-DUB
$721
5/11週六
multi-stopBritish Airways
12h 15mDUB-ORD
6/16週日
nonstopBritish Airways
7h 20mORD-DUB
$722
5/12週日
multi-stopAmerican Airlines
14h 38mDUB-ORD
6/13週四
multi-stopAmerican Airlines
13h 15mORD-DUB
$729
5/10週五
nonstopAmerican Airlines
8h 25mDUB-ORD
11/1週五
nonstopAmerican Airlines
7h 20mORD-DUB
$861
5/11週六
nonstopAer Lingus
8h 25mDUB-ORD
6/17週一
nonstopAer Lingus
7h 30mORD-DUB
$1,409
5/11週六
nonstopAer Lingus
8h 25mDUB-ORD
6/14週五
nonstopAer Lingus
7h 30mORD-DUB
$2,163

Search by stops

Search by airline

Search by price

Flights to Chicago O'Hare Airport

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Ireland

Cabin classes:

$2,077
$1,736
$434