Cheap flights from Dublin to Chicago O'Hare Intl Airport from £303
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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
28 Feb — 7 Mar1
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 September, booked 31 days in advance, depart on a Wednesday or Tuesday and return on a Monday
Cheap flight deals from Dublin to O'Hare Intl
Enter your travel dates to find the best prices.
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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 29 January 2026.
Thu 27/809:30
DUB
-
ORD
Nonstop8h 00m
Multiple Airlines
Sat 5/918:15
ORD
-
DUB
1 stop14h 10m
Multiple Airlines
Deal found 28/1£318
Fri 15/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Mon 25/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 27/1£321
Wed 13/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 26/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 27/1£323
Fri 8/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 12/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 28/1£324
Wed 13/508:35
DUB
-
ORD
1 stop12h 20m
Multiple Airlines
Tue 26/522:25
ORD
-
DUB
Nonstop7h 25m
Multiple Airlines
Deal found 27/1£328
Wed 29/409:30
DUB
-
ORD
1 stop16h 25m
Multiple Airlines
Mon 4/522:20
ORD
-
DUB
1 stop14h 20m
Multiple Airlines
Deal found 28/1£331
Wed 27/509:30
DUB
-
ORD
Nonstop8h 00m
Multiple Airlines
Wed 3/621:15
ORD
-
DUB
1 stop11h 20m
Multiple Airlines
Deal found 28/1£333
Fri 22/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 2/611:43
ORD
-
DUB
1 stop16h 02m
Finnair
Deal found 27/1£334
Mon 16/320:40
DUB
-
ORD
1 stop24h 45m
Multiple Airlines
Mon 23/318:10
ORD
-
DUB
1 stop10h 40m
Multiple Airlines
Deal found 28/1£338
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 29 January 2026.
Fri 15/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Mon 25/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 28/1£322
Wed 29/409:30
DUB
-
ORD
1 stop16h 25m
Multiple Airlines
Mon 4/522:20
ORD
-
DUB
1 stop14h 20m
Multiple Airlines
Deal found 28/1£331
Fri 22/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 2/622:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 29/1£323
Wed 27/509:30
DUB
-
ORD
Nonstop8h 00m
Multiple Airlines
Wed 3/621:15
ORD
-
DUB
1 stop11h 20m
Multiple Airlines
Deal found 28/1£333
Wed 13/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 26/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 28/1£324
Tue 31/310:30
DUB
-
ORD
1 stop13h 05m
Multiple Airlines
Tue 7/422:35
ORD
-
DUB
1 stop14h 15m
Multiple Airlines
Deal found 27/1£339
Fri 8/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 12/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 28/1£324
Wed 22/409:30
DUB
-
ORD
1 stop16h 25m
Finnair
Sun 26/412:30
ORD
-
DUB
1 stop15h 15m
Finnair
Deal found 28/1£347
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 29 January 2026.
Fri 15/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Mon 25/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 27/1£321
Wed 13/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 26/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 27/1£323
Fri 8/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 12/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 28/1£324
Wed 3/609:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Wed 17/622:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 27/1£361
Wed 27/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Mon 7/922:30
ORD
-
DUB
Nonstop7h 20m
Finnair
Deal found 28/1£387
Thu 18/609:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Sat 27/622:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 28/1£402
Mon 16/315:20
DUB
-
ORD
Nonstop8h 35m
Aer Lingus
Mon 23/316:50
ORD
-
DUB
Nonstop7h 20m
Aer Lingus
Deal found 28/1£428
Wed 29/416:45
DUB
-
ORD
Nonstop8h 30m
Aer Lingus
Mon 4/521:00
ORD
-
DUB
Nonstop7h 35m
Aer Lingus
Deal found 28/1£438
Tue 2/609:30
DUB
-
ORD
Nonstop8h 00m
American Airlines
Sun 14/622:25
ORD
-
DUB
Nonstop7h 25m
American Airlines
Deal found 27/1£442
Tue 2/609:30
DUB
-
ORD
Nonstop8h 00m
Iberia
Thu 18/622:25
ORD
-
DUB
Nonstop7h 25m
Iberia
Deal found 27/1£452
Last-minute flights from Dublin to O'Hare Intl
Discover last-minute flight deals from Dublin to O'Hare Intl. Data last updated 29 January 2026 and is based on user searches.
Tue 3/208:45
DUB
-
ORD
1 stop12h 25m
Delta
Sun 8/207:01
ORD
-
DUB
2 stops18h 59m
Delta
Deal found 27/1£391
Wed 4/205:55
DUB
-
ORD
1 stop14h 25m
Delta
Wed 18/210:36
ORD
-
DUB
2 stops15h 24m
Delta
Deal found 27/1£387
Thu 5/211:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Mon 9/218:30
ORD
-
DUB
1 stop9h 45m
Icelandair
Deal found 28/1£382
Thu 5/213:25
DUB
-
ORD
1 stop30h 55m
Multiple Airlines
Tue 10/210:29
ORD
-
DUB
2 stops15h 21m
Multiple Airlines
Deal found 28/1£389
Thu 5/205:55
DUB
-
ORD
2 stops21h 10m
Delta
Mon 9/207:01
ORD
-
DUB
2 stops18h 49m
Delta
Deal found 28/1£393
Fri 6/205:55
DUB
-
ORD
1 stop14h 25m
Delta
Sun 15/214:05
ORD
-
DUB
2 stops20h 15m
Delta
Deal found 27/1£391
Sat 7/208:50
DUB
-
ORD
2 stops18h 15m
Delta
Sun 15/210:35
ORD
-
DUB
2 stops20h 05m
Delta
Deal found 27/1£395
Sun 15/210:10
DUB
-
ORD
1 stop12h 45m
Scandinavian Airlines
Tue 24/210:11
ORD
-
DUB
2 stops19h 34m
Scandinavian Airlines
Deal found 27/1£372
Sun 15/213:25
DUB
-
ORD
2 stops16h 31m
Delta
Tue 24/217:37
ORD
-
DUB
2 stops16h 08m
Delta
Deal found 27/1£396
Tue 24/219:05
DUB
-
ORD
1 stop27h 40m
Scandinavian Airlines
Sat 28/219:20
ORD
-
DUB
1 stop34h 25m
Scandinavian Airlines
Deal found 27/1£374
Tue 24/208:50
DUB
-
ORD
2 stops16h 58m
British Airways
Mon 2/321:45
ORD
-
DUB
1 stop13h 20m
British Airways
Deal found 27/1£384
Fri 27/208:50
DUB
-
ORD
2 stops19h 07m
Delta
Sat 7/312:29
ORD
-
DUB
1 stop13h 16m
Delta
Deal found 27/1£394
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 29 January 2026.
Thu 14/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Deal found 26/1£303
Mon 30/308:30
DUB
-
ORD
1 stop15h 45m
Multiple Airlines
Deal found 27/1£310
Thu 14/518:50
DUB
-
ORD
1 stop27h 10m
TAP AIR PORTUGAL
Deal found 26/1£320
Tue 31/318:50
DUB
-
ORD
1 stop27h 10m
TAP AIR PORTUGAL
Deal found 29/1£322
Sat 28/320:40
DUB
-
ORD
1 stop23h 20m
Multiple Airlines
Deal found 29/1£355
Sun 29/320:30
DUB
-
ORD
1 stop25h 25m
British Airways
Deal found 27/1£362
Mon 30/308:30
DUB
-
ORD
1 stop13h 25m
British Airways
Deal found 28/1£368
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 29 January 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 29 January 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
Dublin
Fly to
O'Hare Intl
Route
Depart
Return
Price
DublinChicago
DUB - ORD
DUBORD
Dublin
Fri 15/5
09:30-11:30
Nonstop8h 00m
Chicago O'Hare Intl
Mon 25/5
22:25-11:50
Nonstop7h 25m
£322
DublinChicago
DUB - ORD
DUBORD
Dublin
Fri 22/5
09:30-11:30
Nonstop8h 00m
Chicago O'Hare Intl
Tue 2/6
22:25-11:50
Nonstop7h 25m
£323
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 13/5
09:30-11:30
Nonstop8h 00m
Chicago O'Hare Intl
Tue 26/5
22:25-11:50
Nonstop7h 25m
£324
DublinChicago
DUB - ORD
DUBORD
Dublin
Fri 8/5
09:30-11:30
Nonstop8h 00m
Chicago O'Hare Intl
Tue 12/5
22:25-11:50
Nonstop7h 25m
£324
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 29/4
09:30-19:55
1 stop16h 25m
Chicago O'Hare Intl
Mon 4/5
22:20-18:40
1 stop14h 20m
£331
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 27/5
09:30-11:30
Nonstop8h 00m
Chicago O'Hare Intl
Wed 3/6
21:15-14:35
1 stop11h 20m
£333
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 31/3
10:30-17:35
1 stop13h 05m
Chicago O'Hare Intl
Tue 7/4
22:35-18:50
1 stop14h 15m
£339
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 22/4
09:30-19:55
1 stop16h 25m
Chicago O'Hare Intl
Sun 26/4
12:30-09:45
1 stop15h 15m
£347
DublinChicago
DUB - ORD
DUBORD
Dublin
Thu 14/5
09:30-11:30
Nonstop8h 00m
£303
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 27/5
09:30-11:30
Nonstop8h 00m
£303
Flights are sorted by cheapest return flights first.
Deals found on 26/1
Showing 1-10 of 16 results
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?
Use this chart to determine the optimal time to book a return flight from Dublin to O'Hare Intl. Price data was last updated on 23 January 2026.
The best time to book flights from Dublin to Chicago O'Hare Intl Airport is 31 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, March is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £290). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £462). 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 29 January 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.
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 29 January 2026.
The most flights from DUB to ORD are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).
How often are flights from Dublin to Chicago delayed?
About 13% of weekly flights between Dublin and Chicago have experienced delays in the past year, with the average delay time being 132 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 Tuesday 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.
Detroit (DTW) – chosen by Cheapflights users on 26% 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.
Copenhagen (CPH) is the most affordable one-stop option, with an average return flight price of £297.
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 Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 11h 25m.
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 London (LHR) offer the fastest connection on this route, with an average stopover time of 1h 47m.
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 29 January 2026.
See what other customers who have flown with United Airlines, Aer Lingus, andIcelandair 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.
Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
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 8 daily outbound flights to Chicago O'Hare Intl from 4 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 8h. Finnair provides one of the quickest options available for as low as £322. The distance between Dublin and Chicago O'Hare Intl Airport is about 3661 mi. Generally, flights for this route are direct.
What are the cheapest airlines flying from Dublin to Chicago O'Hare Intl Airport round-trip?
Currently priced at £234, 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 British Airways and Aer Lingus - these airlines can fly you to your destination from £291 and £336, respectively. Icelandair is 47% 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: Air Canada (84%), Austrian Airlines (83%), Brussels 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 £898, our data indicates the cheapest price to be £249. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £339.
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, March is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £290). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £462). 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 29 January 2026.
Discover the top 4 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 29 January 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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