$252 Find Cheap Flights from Chicago O'Hare Airport to Ireland - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from O'Hare Intl to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Dublin
Dublin2 stops$583
Shannon
Shannon3 stops$777
Cork
Cork1 stop$710
Knock
Knock2 stops$1,005
Dublin
Dublin2 stops$583
Shannon
Shannon3 stops$777
Cork
Cork1 stop$710
Knock
Knock2 stops$1,005
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Ireland flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Chicago O'Hare Intl Airport to Ireland cheaper or more expensive than last year?

Fares from Chicago O'Hare Intl Airport to Ireland are running about 5% lower than they were around this time last year, averaging $716 round-trip.

What are the cheapest fares from Chicago O'Hare Intl Airport to Ireland right now?

Here are the cheapest round-trip fares from Chicago O'Hare Intl Airport to Ireland on KAYAK in the last week:

• Dublin (DUB) from $583
• Cork (ORK) from $710
• Shannon (SNN) from $723

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

January is the cheapest time of year to fly, with average fares of $524. Prices are highest in June, when average flight costs increase to around $961.

When is the best time to book flights from Chicago O'Hare Intl Airport to Ireland?

Book your flights 22 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 36% compared to booking last-minute (within 2 weeks of departure).

Which airport in Ireland is the cheapest to fly to from Chicago O'Hare Intl Airport?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Ireland are:

• Dublin (DUB) (avg. price $721)
• Cork (ORK) (avg. price $769)
• Shannon (SNN) (avg. price $893)

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

Wednesday tends to be the cheapest day to fly from Chicago O'Hare Intl Airport to Ireland, while Saturday is the most expensive. Fares run about 14% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Chicago O'Hare Intl Airport to Ireland?

Data from the past 12 months shows it's cheapest to fly to Ireland during the morning with average prices of $381. The evening is the most expensive time to fly, with average prices of $813.

Key details for Chicago O'Hare Intl Airport to Ireland flights

Low season

January

Cheapest flight

$252
Beat the crowds with an average 50% drop in travelers.
The most popular month to fly with an average 42% increase in travelers.
One-way flight from Chicago O'Hare Intl Airport to Dublin

Your Chicago O'Hare Intl Airport to Ireland flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Chicago O'Hare Intl Airport to Ireland?

    Fares from Chicago O'Hare Intl Airport to Ireland are around their usual level right now. A round-trip under $561 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch price changes.

  • How much should I budget for a flight from Chicago O'Hare Intl Airport to Ireland?

    Over the past 12 months, round-trip fares from Chicago O'Hare Intl Airport to Ireland have ranged from $561 to $978.

  • What are the main airports serving Ireland?

    Ireland has 8 airports. The three busiest are Dublin (DUB) (95% of arrivals), Shannon (SNN) (4%) and Cork (ORK) (0%).

  • What airlines fly nonstop from Chicago O'Hare Intl Airport to Ireland?

    Based on the flight schedule for the next 3 months, 2 airlines offer nonstop flights on this route:

    • Aer Lingus
    • United Airlines

  • Where in Ireland can I fly nonstop from Chicago O'Hare Intl Airport?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from Chicago O'Hare Intl Airport to Dublin.

  • Is it cheaper to fly with a layover from Chicago O'Hare Intl Airport to Ireland?

    Yes. Nonstop flights from Chicago O'Hare Intl Airport to Ireland average $774 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Toronto Pearson Intl (YYZ) (avg. price $431)
    • Kastrup Copenhagen (CPH) (avg. price $556)
    • Reykjavik Keflavik Intl (KEF) (avg. price $608)

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

    Flights from Chicago O'Hare Intl Airport to Ireland take 7h 30m on average.

  • How often are flights from Chicago O'Hare Intl Airport to Ireland delayed and what's the average delay?

    24% of flights on this route are delayed by at least 15 minutes. The average delay is 2h 36m.

  • Which cabin classes are available on flights from Chicago O'Hare Intl Airport to Ireland?

    On flights from Chicago O'Hare Intl Airport to Ireland you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Ireland?

    KAYAK travelers' favorite landmarks in Ireland include:

    • St. Stephen's Green
    • St. Patrick's Cathedral
    • Aviva Stadium
    • Merrion Square

  • What are the earliest and latest flights from Chicago O'Hare Intl Airport to Ireland?

    The earliest nonstop flight from Chicago O'Hare Intl Airport to Ireland departs at 3:55 pm and the latest departs at 9:05 pm. Nonstop flights take about 7h 30m.

Your guide to booking Chicago O'Hare Intl Airport to Ireland flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 22 weeks before your trip. KAYAK data shows fares in this window are around 36% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Wednesday is usually the cheapest. Flights on Saturday cost about 14% more on average, so being flexible with your travel dates could help you save.
  • If arriving on time matters more than price, consider flying with one of the most punctual airlines on this route: American Airlines, Aer Lingus and United Airlines.
  • If you're looking to save, Dublin (DUB) is the cheapest airport to fly into from Chicago O'Hare Intl Airport. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Dublin, which is the most popular destination in Ireland. From there, it's easy to continue on to other popular destinations such as Galway, Cork and Killarney.
  • If you want the shortest trip, choose the Chicago O'Hare Intl Airport to Ireland nonstop route. If you'd rather save money, the route via Toronto Pearson Intl (YYZ) is usually the cheapest.

Reviews of the top 5 airlines serving from O'Hare Intl to Ireland

 
Need help choosing which airline to fly with from O'Hare Intl to Ireland? 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.
7.3
Aer LingusOverall score based on 1869 reviews
7.5Boarding
6.7Food
7.1Entertainment
7.2Comfort
8.1Crew
Airline reviews

All very good The food definitely lacks quality and at breakfast I was given a small muffin small orange juice and not even a coffee or tea were offered It would have been nice to have that first thing Apart from the food everything else was excellent

10.0 ExcellentAnonymous, Oct 2026
Read more Aer Lingus reviews

All very good The food definitely lacks quality and at breakfast I was given a small muffin small orange juice and not even a coffee or tea were offered It would have been nice to have that first thing Apart from the food everything else was excellent

Very helpful staff especially when helping with the missing baggage

OK overall. Flight was delayed Crew on flight was good

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

I flew economy class. Seats were very good and the crew was excellent

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

Horrible. Garbage airline. Due to the strike we got a replacement plane/crew. I didn't get my exit row seat I paid for. Food was horrible. Plane was hot and didn't have AC vents.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

Great flight and crew. Need more legroom and DO NOT allow seats to recline.

The guy in front of me was talking constantly, even when the pilot was making announcements. I found this very disrespectful to the pilot and to others.

We left 1.5 hours late due to a “maintenance” issue. Very poor communication as to when we would board & depart. The crew in First Class was uncharacteristically not friendly). Delay into Brussels cost me my connection to Rome so lost the entire first day of vacation ( had a 10:30am flight to Rome - ended up on a 6:55pm flight).

Everything was OK except the meals, that was overpriced chicken meat.

Miss My connection I had to take a flight from Indianapolis to Denver , then to san fransisco , sleep in sans fransisco en the flight to Los Cabos the next morning

The TVs on the plane were all broken and inoperable. No snacks or food were served. Plane was very old and uncomfortable.

Takeoff delayed 2 hrs. Boarded on time to find we were missing part of the flight crew. Then informed that they had loaded too much fuel. Spent 1 1/2 hrs sitting there burning off the excess, which included a couple of laps around the runway until we were light enough to fly! Ridiculous!

I especially enjoyed having a lightly packed flight which enabled me and my wife to occupy a three seat area with nobody in the middle seat.

The seats are very small, that is all the staff did a good job.

It was great. The staff is always helpful and polite. The app is great and makes the whole trip and process so easy. They even offer a step to step guide to your correct terminal. And they keep all the information you'll need updated. Anything you can think of! Great experience.

Both departure and return flights had mechanical delays. Their planes are antiquated resulting in a two hour flight taking almost four hours to complete.

Crew were helpful, pilot kept us informed about turbulence, snack choice was awesome!

It was one of the worst I have ever had. The plane was over booked, and I did not have a seat. When I questioned why because I had booked this weeks in advance. I was brushed off to be advised they are trying to find someone to give up their seat. Only to be advised I would be boarding last. I had priority boarding in group 1-4. When I asked why I had to be last because that is not what I paid for I was advised it doesn't matter you will get a seat. The ticket person was very rude and unprofessional. The gate changed several times and it was going from one area to another area far away from where we were at. I feel like I should have been compensated in some kind of way because of the way I was treated. The ticket agent acted like it was my fault that the plane was over booked. Not one time was I apologized to for this inconvenience.

We did not fly on American Airlines from Chicago to London. We were rebooked on British Airways (by American Airlines) and our luggage was left behind. A full day delay and lost luggage.

I have posted the comments in the first flight leg.

First class snacks - stewardess gave out multiples to everyone until there was almost no selection left when she got back to me last in first class cabin. Nothing left that I would eat.

My feedback from the trip to Columbia to Chicago was meant for Chicago to Denver.

The WiFi was out gr entire flight. Had to Diane for almost 1 hour to wait for a gate to open up for plane to dock. Very bad experience.

After boarding, the AC was shut off on the flight. At business class, I really could not breathe. I was absolutely dripping sweat. I was told by the FA that there was nothing they could do but I could stand by the door until departure. So, that's what I did. I was clearly in the way while the FAs were trying to do their work, but I had to be able to breathe. After that, of course, I had sweated up a lot so was very uncomfortable for the six hour flight.

DELAYED AGAIN and AGAIN and AGAIN - not only that, you delay in 20 minute increments for hours and hours instead of having an accurate delay understanding.

The staff was very nice and helpful. Some of the best crew I have met.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.

It was a wonderful experience with great food, great staff, and no difficulties boarding!

I was in business class for the 8 hour flight where: 1. The WiFi did not work 2. The entertainment system did not work 3. We were told there were no hot drinks for the entire flight

Paid for “extra room” selected seat. Wasn’t a benefit. Also was in aisle and was bumped almost every time attendants walked down aisle. Should have saved the assigned seat money and let them select.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

I bought the ticket through Iberian, but I was unable to check in using my code. American wouldn’t let me check in and Iberian counter was closed.

The comfort level was low, but the staff was nice

Bad. Requested a diabetic meal. Was served everything i couldnt eat. So i did not estbthe whole flight dinner / breakfast. Sad and uncomfortable.

Only coffee, tea, and water were complimentary. Seat did not recline.

EVERYTHING was charged for. Continuous Iceland advertising; it was off putting.

Overall professional and reliable; only complaint was the lack of complimentary food or beverages on the flight. I’m not accepting an upcharge on things one can reasonably expect.

We got to the runway and had to go back to terminal to have plane worked on, which is fine, but the 40 minute connecting flight was already gone because of this delay and had to wait 5 hours to get on a different flight and only got a meal voucher which I didn’t see the email until after I had already ordered and paid for food. I feel I should be compensated.

Horrible. My dad was recently hospitalized and diagnosed with lymphoma and Icelandair refused to refund flight even though I had a letter from his physician.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Great crew, bumpy landings, two-hour wait for baggage with no communication or explanation. Will not fly again!

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

More options for your flight from O'Hare Intl to Ireland

Complete your trip to Ireland with a hotel stay or car rental