Cheap flights from Dublin to Chicago O'Hare Intl Airport from £334
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
26 Oct — 2 Nov1
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 55 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Dublin to O'Hare Intl
Enter your travel dates to find the best prices.
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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 26 September 2026.
Thu 24/1211:30 -
1 stop11h 50m
Thu 7/118:30 -
1 stop9h 45m
Deal found 26/9£334
Thu 26/1111:30 -
1 stop11h 50m
Sun 29/1118:30 -
1 stop9h 45m
Deal found 23/9£338
Mon 23/1111:30 -
1 stop11h 50m
Sun 29/1118:30 -
1 stop9h 45m
Deal found 25/9£345
Wed 25/1111:30 -
1 stop11h 50m
Sun 29/1118:30 -
1 stop9h 45m
Deal found 25/9£346
Fri 13/1111:30 -
1 stop11h 50m
Mon 16/1118:30 -
1 stop9h 45m
Deal found 22/9£348
Fri 18/1211:30 -
1 stop11h 50m
Wed 30/1218:30 -
1 stop9h 45m
Deal found 25/9£357
Thu 17/1211:30 -
1 stop11h 50m
Mon 28/1218:30 -
1 stop9h 45m
Deal found 25/9£362
Mon 21/1211:30 -
1 stop11h 50m
Wed 30/1218:30 -
1 stop9h 45m
Deal found 25/9£363
Thu 17/1211:30 -
1 stop11h 50m
Wed 30/1218:30 -
1 stop9h 45m
Deal found 25/9£364
Wed 2/1211:30 -
1 stop11h 50m
Sun 6/1218:30 -
1 stop9h 45m
Deal found 23/9£365
Mon 23/1111:30 -
1 stop11h 50m
Tue 1/1218:30 -
1 stop9h 45m
Deal found 22/9£366
Tue 10/1105:10 -
1 stop14h 00m
Tue 17/1116:20 -
1 stop12h 40m
Deal found 26/9£372
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 26 September 2026.
Wed 2/1211:30 -
1 stop11h 50m
Sun 6/1218:30 -
1 stop9h 45m
Deal found 25/9£365
Mon 23/1111:45 -
1 stop14h 20m
Mon 30/1118:30 -
Nonstop7h 40m
Deal found 25/9£394
Thu 11/305:45 -
1 stop14h 40m
Mon 15/317:55 -
2 stops15h 35m
Deal found 23/9£400
Mon 2/1108:50 -
1 stop11h 35m
Mon 9/1113:35 -
1 stop13h 10m
Deal found 21/9£402
Thu 5/1113:05 -
1 stop11h 40m
Thu 12/1121:50 -
1 stop13h 45m
Deal found 23/9£407
Mon 2/1109:30 -
1 stop15h 01m
Mon 9/1118:30 -
Nonstop7h 40m
Deal found 21/9£416
Fri 13/1105:45 -
2 stops19h 54m
Mon 16/1118:00 -
2 stops14h 30m
Deal found 22/9£403
Mon 2/1110:50 -
1 stop13h 55m
Sun 8/1118:49 -
2 stops16h 06m
Deal found 21/9£408
Sat 7/1108:50 -
2 stops17h 40m
Sat 14/1114:44 -
2 stops17h 26m
Deal found 23/9£403
Thu 28/105:45 -
2 stops20h 52m
Sun 31/117:45 -
2 stops14h 40m
Deal found 21/9£403
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 26 September 2026.
Fri 6/1110:40 -
Nonstop8h 40m
Sat 14/1118:30 -
Nonstop7h 40m
Deal found 23/9£395
Thu 5/1110:40 -
Nonstop8h 40m
Thu 12/1118:30 -
Nonstop7h 40m
Deal found 24/9£396
Thu 5/1110:40 -
Nonstop8h 40m
Thu 12/1118:30 -
Nonstop7h 40m
Deal found 25/9£397
Mon 1/310:40 -
Nonstop8h 40m
Mon 8/318:30 -
Nonstop7h 40m
Deal found 21/9£399
Thu 12/1111:30 -
Nonstop8h 40m
Sun 15/1115:55 -
Nonstop7h 20m
Deal found 24/9£406
Thu 5/1110:40 -
Nonstop8h 40m
Thu 12/1118:30 -
Nonstop7h 40m
Deal found 25/9£409
Tue 17/1110:40 -
Nonstop8h 40m
Sat 28/1118:30 -
Nonstop7h 40m
Deal found 22/9£412
Mon 2/1111:30 -
Nonstop8h 40m
Sun 8/1115:55 -
Nonstop7h 20m
Deal found 21/9£414
Last-minute flights from Dublin to O'Hare Intl
Discover last-minute flight deals from Dublin to O'Hare Intl. Data last updated 26 September 2026 and is based on user searches.
Wed 30/905:55 -
2 stops17h 04m
Tue 6/1017:10 -
1 stop16h 15m
Deal found 22/9£406
Wed 7/1008:55 -
2 stops18h 36m
Mon 12/1009:51 -
1 stop16h 54m
Deal found 23/9£408
Wed 7/1009:15 -
1 stop11h 55m
Mon 12/1015:40 -
1 stop11h 05m
Deal found 23/9£409
Tue 13/1005:55 -
1 stop14h 20m
Tue 20/1010:24 -
2 stops15h 51m
Deal found 22/9£403
Wed 14/1005:55 -
1 stop14h 35m
Mon 19/1017:10 -
1 stop16h 15m
Deal found 23/9£402
Thu 15/1005:55 -
1 stop14h 20m
Thu 22/1009:59 -
1 stop15h 56m
Deal found 23/9£404
Wed 28/1013:25 -
2 stops25h 00m
Wed 4/1118:25 -
1 stop14h 05m
Deal found 23/9£403
Thu 29/1005:45 -
1 stop14h 40m
Mon 2/1118:25 -
1 stop18h 00m
Deal found 21/9£400
Thu 29/1005:45 -
1 stop14h 40m
Sun 1/1107:25 -
1 stop20h 20m
Deal found 22/9£401
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 26 September 2026.
Tue 10/1116:55 -
1 stop28h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/9£351
Fri 19/304:25 -
1 stop17h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 23/9£351
Sun 20/1220:40 -
1 stop23h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 24/9£357
Wed 25/1113:05 -
1 stop30h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 23/9£357
Thu 22/1011:30 -
1 stop16h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 22/9£358
Fri 25/1208:50 -
2 stops17h 28m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 23/9£361
Tue 20/1010:40 -
1 stop14h 34m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 22/9£363
Mon 21/1206:00 -
2 stops20h 18m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 23/9£366
Mon 22/305:45 -
2 stops15h 52m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/9£368
Wed 21/1010:40 -
1 stop14h 34m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/9£369
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 26 September 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 7,457,451 searches. Data last updated 26 September 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
16:55-15:30
1 stop28h 35m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£351
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Fri 19/3
04:25-16:30
1 stop17h 05m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£352
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Wed 25/11
13:05-13:45
1 stop30h 40m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£357
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Wed 2/12
11:30-17:20
1 stop11h 50m
Chicago O'Hare Intl
Sun 6/12
18:30-10:15
1 stop9h 45m
£365
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Mon 22/3
05:45-16:37
2 stops15h 52m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£368
Fastest return journey
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Wed 21/10
10:40-19:14
1 stop14h 34m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£369
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Thu 22/10
10:40-19:14
1 stop14h 34m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£377
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 19/12
16:55-15:30
1 stop28h 35m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£378
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Mon 23/11
11:45-20:05
1 stop14h 20m
Chicago O'Hare Intl
Mon 30/11
18:30-08:10
Nonstop7h 40m
£394
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Thu 11/3
05:45-14:25
1 stop14h 40m
Chicago O'Hare Intl
Mon 15/3
17:55-14:30
2 stops15h 35m
£400
Flights are sorted by cheapest return flights first.
Deals found on 25/9
Showing 1-10 of 20 resultsSorted by cheapest first
1
2
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 54 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 £395). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £640). 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 26 September 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 £421 and £601 in December.The cheapest return price found within the last 5 days was £334 on Icelandair (23 Dec–6 Jan).
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 26 September 2026.
The most flights from DUB to ORD are scheduled on a Wednesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).
How often are flights from Dublin to Chicago delayed?
About 10% of weekly flights between Dublin and Chicago have experienced delays in the past year, with the average delay time being 165 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?
Monday 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 8% 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 £551.
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 26 September 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 12 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 11h 50m. Icelandair provides one of the quickest options available for as low as £365. 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 £312, 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 United Airlines - these airlines can fly you to your destination from £337 and £352, respectively. Icelandair is 39% 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 (88%), Finnair (82%), American Airlines( 78%).
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 £1,226, our data indicates the cheapest price to be £107. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £338.
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 £395). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £640). 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 26 September 2026.
Browse through other flights departing from Dublin. Flights are based on user searches made on Cheapflights and were last updated on 26 September 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 7,457,451 searches. Data last updated 26 September 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.
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