Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Dublin to Chicago O'Hare Intl Airport from £338

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Dublin to Chicago O'Hare Intl are usually found in February or November, booked 81 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap 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 15 April 2025.

Round-trip from

£388

One-way from

£338

Popular in

July

Cheapest in

February

Average price

£417

Good round-trip deal

£503 or less

Good one-way deal

£382 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/9-4/10
  • 4 total stops
  • 43h 15m total
  • Dublin to Chicago
Search Deals
23/4
  • 23/4
  • 2 total stops
  • 49h 11m total
  • Dublin to Chicago
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Dublin to Chicago O'Hare Intl.
Search Deals

Find flight deals from Dublin to O'Hare Intl

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 15 April 2025.

Sat 20/920:05DUB - ORD
2 stops26h 05mScandinavian Airlines
Sat 4/1019:15ORD - DUB
2 stops17h 10mScandinavian Airlines
Deal found 14/4£388
Sun 14/912:15DUB - ORD
1 stop12h 00mIcelandair
Mon 29/919:25ORD - DUB
1 stop11h 50mIcelandair
Deal found 14/4£389
Tue 16/909:20DUB - ORD
1 stop16h 51mUnited Airlines
Mon 29/920:20ORD - DUB
Nonstop7h 25mUnited Airlines
Deal found 14/4£391
Wed 10/913:45DUB - ORD
Nonstop8h 00mMultiple Airlines
Wed 1/1021:15ORD - DUB
1 stop11h 20mMultiple Airlines
Deal found 14/4£395
Thu 24/408:55DUB - ORD
1 stop11h 15mDelta
Mon 28/418:15ORD - DUB
2 stops14h 45mDelta
Deal found 14/4£398
Tue 16/913:45DUB - ORD
Nonstop8h 00mFinnair
Mon 29/922:20ORD - DUB
Nonstop7h 20mFinnair
Deal found 14/4£408
Fri 19/905:55DUB - ORD
2 stops18h 26mLufthansa
Sun 28/922:30ORD - DUB
1 stop17h 45mLufthansa
Deal found 14/4£416
Sat 20/908:55DUB - ORD
1 stop35h 20mIberia
Sat 4/1022:20ORD - DUB
Nonstop7h 20mIberia
Deal found 14/4£446
Fri 16/518:40DUB - ORD
2 stops23h 20mSWISS
Sun 18/519:05ORD - DUB
1 stop35h 05mSWISS
Deal found 14/4£456
Sun 27/417:25DUB - ORD
1 stop26h 25mBritish Airways
Sat 17/516:29ORD - DUB
2 stops15h 56mBritish Airways
Deal found 15/4£477
Sat 3/511:35DUB - ORD
Nonstop8h 00mBrussels Airlines
Tue 20/520:15ORD - DUB
Nonstop7h 30mBrussels Airlines
Deal found 15/4£480
Fri 29/806:00DUB - ORD
2 stops16h 50mAir France
Sun 31/810:35ORD - DUB
2 stops30h 05mAir France
Deal found 14/4£481

Cheapflights Fare Finder

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 15 April 2025.
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

Sat 20/9

20:05-16:10

2 stops26h 05m

Chicago O'Hare Intl

Sat 4/10

19:15-18:25

2 stops17h 10m

£388

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 14/9

12:15-18:15

1 stop12h 00m

Chicago O'Hare Intl

Sat 27/9

19:25-11:05

1 stop9h 40m

£389

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

09:20-20:11

1 stop16h 51m

Chicago O'Hare Intl

Mon 29/9

20:20-09:45

Nonstop7h 25m

£391

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/9

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Wed 1/10

21:15-14:35

1 stop11h 20m

£395

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 5/5

05:55-14:10

1 stop14h 15m

Chicago O'Hare Intl

Mon 12/5

10:31-09:15

1 stop16h 44m

£400

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Mon 29/9

22:20-11:40

Nonstop7h 20m

£408

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 19/9

05:55-18:21

2 stops18h 26m

Chicago O'Hare Intl

Sun 28/9

22:30-22:15

1 stop17h 45m

£416

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 20/9

08:55-14:15

1 stop35h 20m

Chicago O'Hare Intl

Sat 4/10

22:20-11:40

Nonstop7h 20m

£446

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 16/5

18:40-12:00

2 stops23h 20m

Chicago O'Hare Intl

Sun 18/5

19:05-12:10

1 stop35h 05m

£456

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 27/4

17:25-13:50

1 stop26h 25m

Chicago O'Hare Intl

Sat 17/5

16:29-14:25

2 stops15h 56m

£477

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 25 results
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.
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

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 11 April 2025.

The best time to book flights from Dublin to Chicago O'Hare Intl Airport is 81 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, January is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £595). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 15 April 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 16% on flights from Dublin to Chicago O'Hare Intl Airport by exploring options for tickets in the evening.

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 15 April 2025.

The most flights from DUB to ORD are scheduled on a Thursday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 15 April 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Dublin to Chicago. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,917 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,578 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 11 daily outbound flights to Chicago O'Hare Intl from 8 different airlines.

  • What are the cheapest airlines flying from Dublin to Chicago O'Hare Intl Airport round-trip?

    Currently priced at £388, Scandinavian Airlines will fly you from Dublin to Chicago O'Hare Intl Airport and back. In addition to Scandinavian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and United Airlines - these airlines can fly you to your destination from £389 and £391, respectively. Scandinavian Airlines is 14% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Dublin to Chicago O'Hare Intl Airport one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £363. Users have also found prices from £368 and £370 on JetBlue and Icelandair, respectively.

  • 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 (100%), Austrian Airlines (100%), Brussels Airlines( 100%).

  • 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 £1,163, our data indicates the cheapest price to be £370. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £571.

  • Can I find deals for flights from Dublin to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Dublin to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to O'Hare Intl.

  • 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, January is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £595). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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.

See more FAQs

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Evanston
Downers Grove
Schaumburg
Elk Grove Village
Beloit
Rosemont

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dublin to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Midway flights

Top 8 airlines flying from Dublin to O'Hare Intl

Discover the top 8 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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£263Average£437FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£294Average£442FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£297Average£547FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£307Average£459FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£314Average£442FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£374Average£501FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£375Average£559FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£384Average£576FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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.
Site
©2025 Cheapflights