Cheap flights from Chicago O'Hare Intl Airport to Dublin from £268
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
4 Jan — 11 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Dublin are usually found in January or February, booked 33 days in advance, depart on a Monday or Wednesday and return on a Wednesday
Cheap flight deals from O'Hare Intl to Dublin
Enter your travel dates to find the best prices.
Cheapest flights from O'Hare Intl to Dublin
Explore the most affordable flight options available from O'Hare Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.
Fri 12/1218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Wed 17/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 2/12£352
Thu 11/1216:00ORD - DUB
1 stop12h 20mUnited Airlines
Tue 16/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/12£354
Wed 10/1218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Wed 17/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/12£370
Wed 10/1218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Thu 18/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 2/12£386
Tue 9/1218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Thu 18/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 2/12£389
Thu 11/1213:05ORD - DUB
1 stop15h 15mUnited Airlines
Mon 15/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/12£392
Sun 28/1218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Sat 10/109:00DUB - ORD
2 stops30h 43mUnited Airlines
Deal found 2/12£412
Best flights from O'Hare Intl to Dublin
Discover carefully curated flight deals from O'Hare Intl to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 December 2025.
Sat 25/418:10ORD - DUB
1 stop33h 05mDelta
Tue 12/515:00DUB - ORD
2 stops23h 34mDelta
Deal found 3/12£335
Wed 14/119:20ORD - DUB
2 stops32h 40mScandinavian Airlines
Sat 17/110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 4/12£336
Wed 11/317:25ORD - DUB
1 stop14h 15mKLM
Wed 25/309:45DUB - ORD
1 stop13h 06mKLM
Deal found 3/12£346
Tue 21/420:15ORD - DUB
Nonstop7h 30mUnited Airlines
Wed 13/509:20DUB - ORD
1 stop26h 18mUnited Airlines
Deal found 3/12£346
Wed 22/412:15ORD - DUB
2 stops16h 30mDelta
Mon 11/513:25DUB - ORD
1 stop30h 50mDelta
Deal found 3/12£338
Wed 21/119:20ORD - DUB
1 stop17h 00mScandinavian Airlines
Tue 27/111:30DUB - ORD
2 stops35h 15mScandinavian Airlines
Deal found 4/12£339
Mon 23/218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Fri 6/309:00DUB - ORD
1 stop12h 10mUnited Airlines
Deal found 4/12£348
Sat 28/318:36ORD - DUB
1 stop31h 19mDelta
Mon 6/413:25DUB - ORD
1 stop30h 50mDelta
Deal found 3/12£339
Sun 15/218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Fri 13/308:00DUB - ORD
1 stop14h 48mUnited Airlines
Deal found 4/12£348
Wed 29/410:10ORD - DUB
1 stop18h 35mDelta
Tue 5/506:00DUB - ORD
2 stops18h 41mDelta
Deal found 3/12£342
Wed 18/218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Wed 18/308:00DUB - ORD
1 stop16h 45mUnited Airlines
Deal found 4/12£348
Wed 21/115:35ORD - DUB
1 stop9h 55mUnited Airlines
Fri 30/110:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 4/12£352
Direct flights from O'Hare Intl to Dublin
Explore direct flight options from O'Hare Intl to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 December 2025.
Sun 11/118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Tue 20/110:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/12£334
Tue 24/319:35ORD - DUB
Nonstop7h 35mUnited Airlines
Tue 31/311:35DUB - ORD
Nonstop8h 05mUnited Airlines
Deal found 3/12£337
Tue 20/121:00ORD - DUB
Nonstop7h 20mAer Lingus
Sat 24/116:40DUB - ORD
Nonstop8h 35mAer Lingus
Deal found 3/12£346
Fri 23/118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Tue 3/210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 2/12£352
Mon 23/218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Fri 6/310:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 4/12£352
Fri 24/420:15ORD - DUB
Nonstop7h 30mUnited Airlines
Tue 5/511:35DUB - ORD
Nonstop8h 05mUnited Airlines
Deal found 3/12£354
Sun 19/420:15ORD - DUB
Nonstop7h 30mUnited Airlines
Fri 1/511:35DUB - ORD
Nonstop8h 05mUnited Airlines
Deal found 3/12£355
Wed 4/318:35ORD - DUB
Nonstop7h 35mUnited Airlines
Tue 10/310:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 2/12£370
Sun 11/118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Mon 19/110:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/12£371
Sun 19/420:15ORD - DUB
Nonstop7h 30mUnited Airlines
Fri 15/511:35DUB - ORD
Nonstop8h 05mUnited Airlines
Deal found 3/12£374
Last-minute flights from O'Hare Intl to Dublin
Discover last-minute flight deals from O'Hare Intl to Dublin. Data last updated 5 December 2025 and is based on user searches.
Sun 11/118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Tue 20/110:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/12£334
Mon 12/106:50ORD - DUB
2 stops19h 55mDelta
Tue 20/106:00DUB - ORD
2 stops17h 45mDelta
Deal found 3/12£343
Tue 13/110:29ORD - DUB
2 stops15h 31mDelta
Wed 21/110:45DUB - ORD
1 stop13h 00mDelta
Deal found 3/12£340
Wed 14/119:20ORD - DUB
2 stops32h 40mScandinavian Airlines
Sat 17/110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 4/12£336
Mon 19/119:20ORD - DUB
1 stop34h 25mScandinavian Airlines
Sat 31/110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 4/12£340
Wed 21/114:27ORD - DUB
1 stop11h 03mUnited Airlines
Fri 30/110:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/12£337
Mon 26/107:01ORD - DUB
2 stops22h 44mScandinavian Airlines
Fri 30/111:30DUB - ORD
2 stops35h 15mScandinavian Airlines
Deal found 2/12£337
One-way flights from O'Hare Intl to Dublin
Search for one-way flight options from O'Hare Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated 5 December 2025.
Tue 12/509:30ORD - DUB
1 stop16h 50mJetBlue
Deal found 3/12£268
Tue 3/217:10ORD - DUB
1 stop15h 10mBritish Airways
Deal found 3/12£274
Tue 30/1218:35ORD - DUB
Nonstop7h 35mLufthansa
Deal found 3/12£280
Tue 30/1214:37ORD - DUB
1 stop10h 53mUnited Airlines
Deal found 3/12£284
Sat 27/1220:30ORD - DUB
1 stop28h 40mUnited Airlines
Deal found 2/12£286
Mon 5/118:30ORD - DUB
1 stop9h 45mIcelandair
Deal found 4/12£289
Mon 2/218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Deal found 4/12£296
Sun 18/118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Deal found 4/12£298
Sat 2/515:15ORD - DUB
1 stop11h 45mJetBlue
Deal found 4/12£306
Tue 6/118:35ORD - DUB
Nonstop7h 35mLufthansa
Deal found 4/12£310
Mon 5/111:15ORD - DUB
2 stops14h 15mUnited Airlines
Deal found 4/12£314
Thu 1/118:35ORD - DUB
Nonstop7h 35mLufthansa
Deal found 3/12£318
Find flight deals from O'Hare Intl to Dublin
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 December 2025.
Customise your flight search to find flights from O'Hare Intl to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 December 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Dublin that are best for you.
Fly from
O'Hare Intl
Fly to
Dublin
Route
Depart
Return
Price
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sat 25/4
18:10-09:15
1 stop33h 05m
Dublin
Tue 12/5
15:00-08:34
2 stops23h 34m
£335
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Wed 14/1
19:20-10:00
2 stops32h 40m
Dublin
Sat 17/1
10:10-16:45
1 stop12h 35m
£336
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Wed 22/4
12:15-10:45
2 stops16h 30m
Dublin
Mon 11/5
13:25-14:15
1 stop30h 50m
£338
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Wed 21/1
19:20-18:20
1 stop17h 00m
Dublin
Tue 27/1
11:30-16:45
2 stops35h 15m
£339
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sat 28/3
18:36-06:55
1 stop31h 19m
Dublin
Mon 6/4
13:25-14:15
1 stop30h 50m
£339
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Wed 29/4
10:10-10:45
1 stop18h 35m
Dublin
Tue 5/5
06:00-18:41
2 stops18h 41m
£342
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Wed 11/3
17:25-12:40
1 stop14h 15m
Dublin
Wed 25/3
09:45-17:51
1 stop13h 06m
£346
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Tue 21/4
20:15-09:45
Nonstop7h 30m
Dublin
Wed 13/5
09:20-05:38
1 stop26h 18m
£346
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Mon 23/2
18:35-08:10
Nonstop7h 35m
Dublin
Fri 6/3
09:00-15:10
1 stop12h 10m
£348
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sun 15/2
18:35-08:10
Nonstop7h 35m
Dublin
Fri 13/3
08:00-17:48
1 stop14h 48m
£348
Flights are sorted by cheapest return flights first.
Deals found on 3/12
Showing 1-10 of 22 results
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Best time to book a flight from O'Hare Intl to Dublin
Have a flexible travel schedule? Discover the best time to fly to Dublin from O'Hare Intl 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 Chicago O'Hare Intl Airport to Dublin
Prices
Airlines
Delays
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Dublin?
Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Dublin. Price data was last updated on 28 November 2025.
To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Dublin, you should look to book at least 33 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of £283). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £508). 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 ORD to DUB?
Find hourly flight availability from O'Hare Intl to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 December 2025.
When flying from Chicago O'Hare Intl Airport to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Chicago O'Hare Intl Airport to Dublin
Explore weekly flight availability from O'Hare Intl to Dublin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 5 December 2025.
The most flights from ORD to DUB are scheduled on a Wednesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).
How often are flights from Chicago to Dublin delayed?
About 20% of weekly flights between Chicago and Dublin have experienced delays in the past year, with the average delay time being 155 minutes.
What is the most punctual flight time for Chicago to Dublin flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to Dublin flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 18% of flights being delayed.
Reviews of airlines servicing Dublin
Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated 5 December 2025.
Check out reviews from past customers who have flown with Aer Lingus from Chicago O'Hare Intl Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Dublin from Chicago O'Hare Intl?
Dublin (DUB), located 5.7 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Dublin. 1 airline have flights to Dublin from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Dublin should not be difficult; the airport handles an average of 12 inbound flights from Chicago O'Hare Intl per day.
How long is the flight from Chicago O'Hare Intl Airport to Dublin?
For as low as £336, Delta can have you in Dublin from Chicago O'Hare Intl Airport in 32h 40m. Airlines will cover a distance of 3661 mi. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly from Chicago O'Hare Intl Airport to Dublin round-trip?
Currently priced at £361, Aer Lingus will fly you from Chicago O'Hare Intl Airport to Dublin and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. You may be able to fly from Chicago O'Hare Intl Airport to Dublin for 31% less than the average price by searching for this airline.
What are the most reliable airlines from Chicago O'Hare Intl Airport to Dublin?
No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to Dublin consider choosing Aer Lingus (68%), British Airways (63%) or American Airlines (60%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Chicago O'Hare Intl Airport to Dublin?
Looking for the cheapest flight from Chicago O'Hare Intl Airport to Dublin? While on average our users pay £393, our data indicates the cheapest price to be £186. The most popular route (Chicago O'Hare Intl - Dublin), is priced around £919.
Can I find deals for business class flights from O'Hare Intl to Dublin?
Yes. Cheapflights offers flight deals from O'Hare Intl to Dublin 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 Chicago O'Hare Intl Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of £283). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £508). 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.
Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 December 2025.
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 5 December 2025.
Discover the top airline that operate flights from O'Hare Intl to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 December 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from O'Hare Intl to Dublin?
Cheapflights makes it easy to find O'Hare Intl to Dublin flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Dublin?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from O'Hare Intl to Dublin.
Can Cheapflights find flights from O'Hare Intl to Dublin with no change fees?
Yes! Cheapflights helps users easily find flights from O'Hare Intl to Dublin with no change fees.
Can Cheapflights notify me if prices for flights from O'Hare Intl to Dublin become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dublin from O'Hare Intl today and book when prices fit your budget.
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