€157 Find Cheap Flights from Chicago O'Hare Airport to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Ireland departing on 25/3. 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
1 adult, Economy, 0 bags

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Flight Deals

Best Ireland Flight Deals from O'Hare Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop€353
Cork
Cork2 stops€403
Shannon
Shannon1 stop€410
Knock
Knock1 stop€756
Dublin
Dublin1 stop€353
Cork
Cork2 stops€403
Shannon
Shannon1 stop€410
Knock
Knock1 stop€756

Cheap Flights from O'Hare Intl to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from O'Hare Intl to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from O'Hare Intl to Ireland

Wed, 15 Apr - Wed, 29 Apr
Icelandair Logo
19:25 - 13:15
ORD
-
DUB
11h 50m
1 stop
Icelandair Logo
12:15 - 18:15
DUB
-
ORD
12h 00m
1 stop
€353Icelandair
Wed, 25 Feb - Sat, 7 Mar
Scandinavian Airlines Logo
19:20 - 18:20
ORD
-
DUB
17h 00m
1 stop
Scandinavian Airlines Logo
10:10 - 16:45
DUB
-
ORD
12h 35m
1 stop
€354Scandinavian Airlines
Sun, 8 Mar - Tue, 17 Mar
Lufthansa Logo
22:50 - 17:10
ORD
-
DUB
13h 20m
1 stop
Lufthansa Logo
05:00 - 14:25
DUB
-
ORD
14h 25m
1 stop
€360Lufthansa
Tue, 24 Mar - Thu, 2 Apr
Delta Logo
13:37 - 15:00
ORD
-
ORK
20h 23m
2 stops
Delta Logo
06:15 - 14:15
ORK
-
ORD
14h 00m
1 stop
€403Delta
Wed, 25 Mar - Tue, 31 Mar
Delta Logo
17:25 - 10:45
ORD
-
ORK
12h 20m
1 stop
Delta Logo
17:10 - 14:30
ORK
-
ORD
27h 20m
1 stop
€405Delta
Mon, 27 Apr - Wed, 6 May
KLM Logo
17:10 - 14:40
ORD
-
ORK
15h 30m
1 stop
KLM Logo
10:50 - 21:29
ORK
-
ORD
16h 39m
2 stops
€408KLM
Tue, 21 Apr - Wed, 29 Apr
United Airlines Logo
15:35 - 10:15
ORD
-
SNN
12h 40m
1 stop
United Airlines Logo
12:30 - 18:25
SNN
-
ORD
11h 55m
1 stop
€410United Airlines
Tue, 21 Apr - Tue, 5 May
United Airlines Logo
12:40 - 10:15
ORD
-
SNN
15h 35m
2 stops
United Airlines Logo
12:30 - 21:27
SNN
-
ORD
14h 57m
2 stops
€413United Airlines
Mon, 27 Apr - Wed, 6 May
KLM Logo
17:10 - 14:40
ORD
-
ORK
15h 30m
1 stop
KLM Logo
15:25 - 15:10
ORK
-
ORD
29h 45m
1 stop
€416KLM
Wed, 8 Apr - Fri, 17 Apr
Lufthansa Logo
09:00 - 10:15
ORD
-
SNN
19h 15m
1 stop
Lufthansa Logo
12:30 - 18:25
SNN
-
ORD
11h 55m
1 stop
€426Lufthansa
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Ireland flights

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

What is the cheapest Chicago O'Hare Intl Airport to Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Chicago O'Hare Intl Airport found in the last 72 hours was to Dublin, at €345 return. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €345.

Can I save money by flying with a stopover from Chicago O'Hare Intl Airport to Ireland?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €609 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Ireland, 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 from Chicago O'Hare Intl Airport to Ireland is January, when tickets cost €435 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €751 and €654 respectively.

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

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Ireland clicked on KAYAK for each day over the last 12 months.

For Chicago O'Hare Airport to Ireland, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Ireland back to Chicago O'Hare Airport, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Chicago O'Hare Intl Airport to Ireland, you should book around 3 weeks before departure, which saves you about 14% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€157
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Chicago O'Hare Airport to Cork

FAQs - booking Ireland flights

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

    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 from Chicago O'Hare Airport to Ireland.

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

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

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

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

    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 from Chicago O'Hare Airport to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally at night, when retur flights cost €610 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is €632.

Reviews of the top airlines flying 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.
7.4
United AirlinesOverall score based on 9214 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

2.0 MediocreJames, Jan 2026
ORD - MSP
Read more United Airlines reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Not United Airlines' fault. It's ORL airport's fault.

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

I liked the snacks and the flight attendants were friendly.

The movies offered were great. Staff were very pleasant and very efficient.

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

I was not admitted to the flight!!! I need a refund for this

Everything you need to know for your flight from O'Hare Intl to Ireland

Information on your arrival and departure airports