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Cheap flights from Dublin to Chicago O'Hare Intl Airport from £319

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
30 Mar — 6 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 25 March 2025.

Round-trip from

£380

One-way from

£319

Popular in

July

Cheapest in

February

Average price

£435

Good round-trip deal

£482 or less

Good one-way deal

£461 or less
5/9-15/9
  • 5/9-15/9
  • 1 total stop
  • 20h 05m total
  • Dublin to Chicago
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WestJet
  • WestJet
  • 7/6
  • 2 total stops
  • 32h 54m total
  • Dublin to Chicago
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Highest demand for flights based on searches. 15% potential increase in price (£65 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Dublin to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Dublin to Chicago O'Hare Intl.
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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 25 March 2025.

Fri 5/913:45DUB - ORD
Nonstop8h 00mMultiple Airlines
Mon 15/917:45ORD - DUB
1 stop12h 05mMultiple Airlines
Deal found 24/3£380
Tue 8/416:40DUB - ORD
Nonstop8h 20mAer Lingus
Thu 17/421:15ORD - DUB
Nonstop7h 25mAer Lingus
Deal found 25/3£384
Fri 6/612:15DUB - ORD
1 stop12h 00mIcelandair
Thu 31/719:25ORD - DUB
1 stop9h 40mIcelandair
Deal found 25/3£388
Thu 22/509:45DUB - ORD
1 stop14h 05mFinnair
Mon 4/822:25ORD - DUB
Nonstop7h 15mFinnair
Deal found 24/3£389
Thu 10/408:55DUB - ORD
1 stop11h 15mDelta
Sat 19/417:00ORD - DUB
2 stops16h 00mDelta
Deal found 24/3£391
Sun 6/420:45DUB - ORD
1 stop23h 25mKLM
Sun 13/416:20ORD - DUB
1 stop12h 05mKLM
Deal found 24/3£396
Wed 21/511:45DUB - ORD
2 stops34h 25mScandinavian Airlines
Thu 29/507:00ORD - DUB
2 stops29h 15mScandinavian Airlines
Deal found 24/3£401
Sat 20/920:10DUB - ORD
1 stop21h 40mBritish Airways
Sat 4/1017:45ORD - DUB
1 stop12h 10mBritish Airways
Deal found 24/3£414
Mon 14/409:30DUB - ORD
1 stop19h 17mIberia
Sun 20/414:55ORD - DUB
1 stop9h 35mIberia
Deal found 24/3£430
Fri 31/1018:40DUB - ORD
2 stops23h 35mSWISS
Mon 3/1117:55ORD - DUB
2 stops17h 55mSWISS
Deal found 24/3£471
Fri 31/1009:00DUB - ORD
2 stops16h 11mUnited Airlines
Mon 3/1121:13ORD - DUB
1 stop30h 52mUnited Airlines
Deal found 25/3£480
Sun 1/611:30DUB - ORD
1 stop16h 24mJetBlue
Mon 9/608:50ORD - DUB
1 stop17h 30mJetBlue
Deal found 25/3£508

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 25 March 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

Fri 5/9

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Mon 15/9

17:45-11:50

1 stop12h 05m

£380

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 8/4

16:40-19:00

Nonstop8h 20m

Chicago O'Hare Intl

Thu 17/4

21:15-10:40

Nonstop7h 25m

£384

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 6/6

12:15-18:15

1 stop12h 00m

Chicago O'Hare Intl

Thu 31/7

19:25-11:05

1 stop9h 40m

£388

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 22/5

09:45-17:50

1 stop14h 05m

Chicago O'Hare Intl

Mon 4/8

22:25-11:40

Nonstop7h 15m

£389

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 10/4

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Sat 19/4

17:00-15:00

2 stops16h 00m

£391

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 6/4

20:45-14:10

1 stop23h 25m

Chicago O'Hare Intl

Sun 13/4

16:20-10:25

1 stop12h 05m

£396

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 21/5

11:45-16:10

2 stops34h 25m

Chicago O'Hare Intl

Thu 29/5

07:00-18:15

2 stops29h 15m

£401

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 20/9

20:10-11:50

1 stop21h 40m

Chicago O'Hare Intl

Sat 4/10

17:45-11:55

1 stop12h 10m

£414

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 14/4

09:30-22:47

1 stop19h 17m

Chicago O'Hare Intl

Sun 20/4

14:55-06:30

1 stop9h 35m

£430

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 23/5

09:20-05:38

1 stop26h 18m

Chicago O'Hare Intl

Mon 26/5

20:15-09:45

Nonstop7h 30m

£503

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 22 results
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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 21 March 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 25 March 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 17% 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 25 March 2025.

The most flights from DUB to ORD are scheduled on a Friday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 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 25 March 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
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

8.0

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
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

8.0

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
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

8.0

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
1,266 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

8.0

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
7.4
Good
1,423 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

8.0

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
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

8.0

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 6 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 £384, Aer Lingus will fly you from Dublin to Chicago O'Hare Intl Airport and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and Finnair - these airlines can fly you to your destination from £388 and £389, respectively. Aer Lingus is 16% 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 WestJet. According to our data, you can fly for as low as £319. Users have also found prices from £353 and £360 on TAP AIR PORTUGAL 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: Aer Lingus (94%), American Airlines (91%), British Airways( 91%).

  • 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 £1,145, our data indicates the cheapest price to be £376. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £318.

  • 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
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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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£268Average£443FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£300Average£436FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£302Average£564FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£306Average£467FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£319Average£437FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£381Average£510FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£382Average£569FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£391Average£586FlexibilityNo 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.

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