Cheap flights from Dublin to Chicago O'Hare Intl Airport from £379
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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
7 Sep — 14 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to Chicago O'Hare Intl are usually found in November or February, booked 67 days in advance, depart on a Tuesday or Wednesday and return on a Friday
Cheap flight deals from Dublin to O'Hare Intl
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Dublin to O'Hare Intl
Explore the most affordable flight options available from Dublin to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 August 2026.
Thu 1/1011:35 -
Nonstop8h 25m
Sun 4/1022:25 -
1 stop11h 55m
Deal found 5/8£453
Thu 1/1019:50 -
2 stops26h 20m
Sun 4/1019:15 -
2 stops17h 50m
Deal found 5/8£453
Sat 10/1011:35 -
Nonstop8h 25m
Sat 17/1021:15 -
1 stop11h 35m
Deal found 6/8£455
Thu 17/916:45 -
Nonstop8h 30m
Thu 15/1017:00 -
1 stop12h 20m
Deal found 5/8£456
Thu 10/919:50 -
2 stops26h 20m
Mon 14/919:15 -
2 stops32h 55m
Deal found 5/8£458
Sat 5/920:00 -
2 stops26h 10m
Mon 14/919:15 -
2 stops32h 55m
Deal found 6/8£459
Sun 27/1211:30 -
1 stop11h 50m
Mon 11/118:30 -
1 stop9h 45m
Deal found 6/8£460
Sat 5/909:30 -
Nonstop8h 00m
Mon 14/921:00 -
Nonstop7h 35m
Deal found 4/8£462
Wed 2/909:30 -
Nonstop8h 00m
Wed 9/921:00 -
Nonstop7h 35m
Deal found 5/8£462
Sun 27/1207:35 -
1 stop12h 10m
Mon 11/121:50 -
1 stop11h 35m
Deal found 4/8£465
Best flights from Dublin to O'Hare Intl
Discover carefully curated flight deals from Dublin to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 August 2026.
Tue 10/1112:30 -
2 stops34h 15m
Tue 17/1119:15 -
2 stops32h 55m
Deal found 5/8£468
Tue 29/914:15 -
1 stop10h 00m
Sat 3/1019:25 -
1 stop9h 40m
Deal found 8/8£476
Wed 2/1213:10 -
1 stop11h 35m
Sun 6/1213:31 -
2 stops13h 39m
Deal found 4/8£524
Wed 2/1210:40 -
Nonstop8h 40m
Sun 6/1218:30 -
Nonstop7h 40m
Deal found 5/8£542
Tue 29/909:30 -
1 stop16h 09m
Sat 3/1021:01 -
1 stop30h 34m
Deal found 5/8£559
Tue 22/1205:45 -
2 stops17h 04m
Wed 30/1217:45 -
2 stops14h 45m
Deal found 5/8£596
Tue 29/919:05 -
1 stop27h 05m
Sat 3/1019:15 -
1 stop34h 35m
Deal found 6/8£516
Fri 11/909:50 -
1 stop34h 53m
Fri 18/915:00 -
2 stops14h 10m
Deal found 5/8£579
Sun 1/1118:55 -
2 stops27h 50m
Tue 10/1119:15 -
2 stops32h 55m
Deal found 5/8£527
Sat 5/909:20 -
1 stop35h 16m
Sat 12/914:32 -
2 stops14h 08m
Deal found 8/8£579
Sat 19/1220:00 -
2 stops26h 45m
Thu 31/1219:15 -
2 stops32h 05m
Deal found 6/8£580
Direct flights from Dublin to O'Hare Intl
Explore direct flight options from Dublin to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 August 2026.
Sat 5/909:30 -
Nonstop8h 00m
Mon 14/921:00 -
Nonstop7h 35m
Deal found 4/8£462
Wed 2/909:30 -
Nonstop8h 00m
Wed 9/921:00 -
Nonstop7h 35m
Deal found 5/8£462
Tue 1/916:45 -
Nonstop8h 30m
Tue 8/921:00 -
Nonstop7h 35m
Deal found 3/8£470
Sat 5/911:35 -
Nonstop8h 25m
Mon 14/921:00 -
Nonstop7h 35m
Deal found 3/8£475
Sat 5/909:30 -
Nonstop8h 00m
Sat 12/915:45 -
Nonstop7h 25m
Deal found 8/8£476
Tue 10/1115:50 -
Nonstop8h 35m
Tue 17/1120:10 -
Nonstop7h 20m
Deal found 5/8£516
Sat 19/1211:30 -
Nonstop8h 30m
Thu 31/1220:10 -
Nonstop7h 20m
Deal found 7/8£520
Sat 10/1011:35 -
Nonstop8h 25m
Sat 17/1015:45 -
Nonstop7h 25m
Deal found 6/8£522
Sun 23/809:30 -
Nonstop8h 00m
Sun 30/822:20 -
Nonstop7h 30m
Deal found 5/8£524
Thu 10/916:45 -
Nonstop8h 30m
Thu 17/921:00 -
Nonstop7h 35m
Deal found 6/8£526
Wed 2/1210:40 -
Nonstop8h 40m
Sun 6/1218:30 -
Nonstop7h 40m
Deal found 3/8£540
Thu 24/911:35 -
Nonstop8h 25m
Sun 4/1021:00 -
Nonstop7h 35m
Deal found 6/8£541
Last-minute flights from Dublin to O'Hare Intl
Discover last-minute flight deals from Dublin to O'Hare Intl. Data last updated 8 August 2026 and is based on user searches.
Tue 1/916:45 -
Nonstop8h 30m
Tue 8/921:00 -
Nonstop7h 35m
Deal found 3/8£470
Wed 2/909:30 -
Nonstop8h 00m
Wed 9/921:00 -
Nonstop7h 35m
Deal found 5/8£462
Sat 5/920:00 -
2 stops26h 10m
Mon 14/919:15 -
2 stops32h 55m
Deal found 6/8£459
Sat 5/909:30 -
Nonstop8h 00m
Mon 14/921:00 -
Nonstop7h 35m
Deal found 4/8£462
Sat 5/909:30 -
Nonstop8h 00m
Mon 14/922:25 -
1 stop14h 15m
Deal found 3/8£467
Sat 5/911:35 -
Nonstop8h 25m
Mon 14/921:00 -
Nonstop7h 35m
Deal found 3/8£475
Sat 5/909:30 -
Nonstop8h 00m
Sat 12/915:45 -
Nonstop7h 25m
Deal found 8/8£476
Thu 10/919:50 -
2 stops26h 20m
Mon 14/919:15 -
2 stops32h 55m
Deal found 5/8£458
Thu 17/916:45 -
Nonstop8h 30m
Thu 15/1017:00 -
1 stop12h 20m
Deal found 5/8£456
Tue 29/914:15 -
1 stop10h 00m
Sat 3/1019:25 -
1 stop9h 40m
Deal found 5/8£470
One-way flights from Dublin to O'Hare Intl
Search for one-way flight options from Dublin to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 8 August 2026.
Thu 4/211:30 -
1 stop11h 50m
Deal found 8/8£379
Wed 9/910:45 -
1 stop31h 55m
Deal found 7/8£382
Wed 19/810:40 -
1 stop14h 47m
Deal found 5/8£407
Sun 6/910:40 -
1 stop14h 45m
Deal found 5/8£419
Wed 7/1010:45 -
1 stop31h 55m
Deal found 5/8£422
Mon 28/911:45 -
1 stop13h 53m
Deal found 5/8£431
Sun 25/1018:30 -
1 stop25h 15m
Deal found 5/8£435
Mon 5/1010:30 -
1 stop13h 45m
Deal found 5/8£438
Sun 4/1020:30 -
1 stop27h 45m
Deal found 7/8£439
Sun 30/810:45 -
1 stop28h 55m
Deal found 6/8£478
Mon 31/805:55 -
1 stop33h 45m
Deal found 4/8£494
Find flight deals from Dublin to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to O'Hare Intl (ORD). 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 8 August 2026.
Customise your flight search to find flights from Dublin to O'Hare Intl 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 8 August 2026.
Use the filters below to find and compare flights from Dublin to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Tue 10/11
12:30-16:45
2 stops34h 15m
Chicago O'Hare Intl
Tue 17/11
19:15-10:10
2 stops32h 55m
£468
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Tue 29/9
14:15-18:15
1 stop10h 00m
Chicago O'Hare Intl
Sat 3/10
19:25-11:05
1 stop9h 40m
£476
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Tue 29/9
19:05-16:10
1 stop27h 05m
Chicago O'Hare Intl
Sat 3/10
19:15-11:50
1 stop34h 35m
£516
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Wed 2/12
13:10-18:45
1 stop11h 35m
Chicago O'Hare Intl
Sun 6/12
13:31-09:10
2 stops13h 39m
£524
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sun 1/11
18:55-16:45
2 stops27h 50m
Chicago O'Hare Intl
Tue 10/11
19:15-10:10
2 stops32h 55m
£527
Fastest return journey
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Wed 2/12
10:40-13:20
Nonstop8h 40m
Chicago O'Hare Intl
Sun 6/12
18:30-08:10
Nonstop7h 40m
£542
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Tue 29/9
09:30-19:39
1 stop16h 09m
Chicago O'Hare Intl
Sat 3/10
21:01-09:35
1 stop30h 34m
£559
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Fri 11/9
09:50-14:43
1 stop34h 53m
Chicago O'Hare Intl
Fri 18/9
15:00-11:10
2 stops14h 10m
£579
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 5/9
09:20-14:36
1 stop35h 16m
Chicago O'Hare Intl
Sat 12/9
14:32-10:40
2 stops14h 08m
£579
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 19/12
20:00-16:45
2 stops26h 45m
Chicago O'Hare Intl
Thu 31/12
19:15-09:20
2 stops32h 05m
£580
Flights are sorted by cheapest return flights first.
Deals found on 8/8
Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
Best time to book a flight from Dublin to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Dublin with our price prediction graph.
DUB-ORD
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 Dublin to Chicago O'Hare Intl Airport
Prices
Airlines
Delays
More
How far ahead should I book a flight from Dublin to Chicago O'Hare Intl Airport?
The best time to book flights from Dublin to Chicago O'Hare Intl Airport is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Dublin to Chicago O'Hare Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £353). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £628). 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 DUB to ORD?
Find hourly flight availability from Dublin to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 August 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Chicago O'Hare Intl Airport as you normally would.
How much does it cost for a return flight from Dublin to Chicago O'Hare Intl Airport?
Airfare is below average for this route at the moment.
Dublin to Chicago O'Hare Intl Airport flights typically cost between £481 and £708 in October.The cheapest return price found within the last 5 days was £453 on Multiple Airlines (1 Oct–4 Oct).
Weekly flight availability from Dublin to Chicago O'Hare Intl Airport
Explore weekly flight availability from Dublin to O'Hare Intl. 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 8 August 2026.
The most flights from DUB to ORD are scheduled on a Friday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).
How often are flights from Dublin to Chicago delayed?
About 12% of weekly flights between Dublin and Chicago have experienced delays in the past year, with the average delay time being 158 minutes.
What is the most punctual flight time for Dublin to Chicago flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Dublin to Chicago flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 7% of flights being delayed.
What’s the top stopover airport for flights from Dublin to Chicago O'Hare Intl Airport?
Share of one-stop return flights from Dublin to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 83% of one-stop itineraries from Dublin to Chicago O'Hare Intl Airport on Cheapflights.
What’s the cheapest stopover airport for flights from Dublin to Chicago O'Hare Intl Airport?
Average return fare for one-stop flights from Dublin to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £540.
What’s the fastest stopover option from Dublin to Chicago O'Hare Intl Airport?
Shortest average travel time for one-stop one-way flights from Dublin to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 11h 12m.
Which airport typically offers the quickest stopover for flights from Dublin to Chicago O'Hare Intl Airport?
Average stopover duration for one-stop one-way flights from Dublin to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 32m.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 8 August 2026.
See what other customers who have flown with Finnair,United Airlines, andAer Lingus from Dublin to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Related info for your journey
Find useful and relevant information for your journey from Dublin to O'Hare Intl. 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 from for flights from Dublin to Chicago O'Hare Intl?
Located just 5.7 mi from the city center, Dublin is the airport most travelers will use when flying to Chicago O'Hare Intl from Dublin. Booking flights from Dublin (DUB) to Chicago O'Hare Intl should be relatively easy as there are 17 daily outbound flights to Chicago O'Hare Intl from 6 different airlines.
How long is the flight from Dublin to Chicago O'Hare Intl Airport?
A quick flight from Dublin to Chicago O'Hare Intl Airport can take about 10h. Scandinavian Airlines provides one of the quickest options available for as low as £476. The distance between Dublin and Chicago O'Hare Intl Airport is about 3661 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Dublin to Chicago O'Hare Intl Airport round-trip?
Currently priced at £296, Icelandair will fly you from Dublin to Chicago O'Hare Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and Aer Lingus - these airlines can fly you to your destination from £330 and £343, respectively. Icelandair is 41% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Dublin to Chicago O'Hare Intl Airport?
Before booking your flight to Chicago O'Hare Intl Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Alaska Airlines (93%), Finnair (93%), American Airlines( 83%).
What are the cheapest flights from Dublin to Chicago O'Hare Intl Airport?
Looking for the cheapest flight from Dublin to Chicago O'Hare Intl Airport? While on average our users pay £1,049, our data indicates the cheapest price to be £386. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £620.
Can I find deals for business class flights from Dublin to O'Hare Intl?
Yes. Cheapflights offers flight deals from Dublin to O'Hare Intl 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 Dublin to Chicago O'Hare Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £353). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £628). 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 O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 August 2026.
Discover the top 6 airlines that operate flights from Dublin to O'Hare Intl. 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 8 August 2026.
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 Dublin to O'Hare Intl?
Deals for Dublin to O'Hare Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Dublin to O'Hare Intl?
Cheapflights helps you find that perfect flight to O'Hare Intl from Dublin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Dublin to O'Hare Intl with no change fees?
Need flexible booking options for your flight to O'Hare Intl from Dublin? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Dublin to O'Hare Intl become cheaper?
Yes! Start tracking prices for Dublin to O'Hare Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.