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Cheap flights from Dublin to Chicago O'Hare Intl Airport from £329

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
22 Jän — 29 Jän1
1 adult

The best prices from Dublin to Chicago O'Hare Intl are usually found in March or February, booked 68 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 17 Jänner 2025.

Round-trip from

£329

Popular in

July

Cheapest in

March

Average price

£499
United Airlines
  • United Airlines
  • 3/4-20/4
  • 2 total stops
  • 21h 22m total
  • Dublin to Chicago
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High demand for flights, 18% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in January 2025
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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 17 Jänner 2025.

Do 3/409:50DUB - ORD
1 stop11h 01mUnited Airlines
So 20/417:59ORD - DUB
1 stop10h 21mUnited Airlines
Deal found 17/1£329
Sa 30/813:55DUB - ORD
Nonstop8h 00mMultiple Airlines
Mi 3/917:45ORD - DUB
1 stop12h 10mMultiple Airlines
Deal found 16/1£334
Mo 17/218:40DUB - ORD
1 stop27h 35mSWISS
Di 25/219:05ORD - DUB
1 stop16h 45mSWISS
Deal found 16/1£336
Mo 24/210:45DUB - ORD
1 stop13h 40mLufthansa
Mo 10/322:25ORD - DUB
1 stop13h 50mLufthansa
Deal found 17/1£337
Do 30/108:40DUB - ORD
1 stop12h 05mBritish Airways
Do 6/217:00ORD - DUB
1 stop10h 50mBritish Airways
Deal found 16/1£340
So 2/205:55DUB - ORD
1 stop14h 35mKLM
Sa 8/213:25ORD - DUB
1 stop13h 20mKLM
Deal found 16/1£345
Fr 19/911:00DUB - ORD
2 stops17h 00mAmerican Airlines
Mo 29/917:45ORD - DUB
1 stop12h 05mAmerican Airlines
Deal found 16/1£346
Di 22/406:00DUB - ORD
1 stop15h 00mDelta
So 27/416:56ORD - DUB
2 stops16h 04mDelta
Deal found 17/1£349
Mi 26/211:30DUB - ORD
1 stop11h 50mIcelandair
Mi 12/319:30ORD - DUB
1 stop9h 45mIcelandair
Deal found 17/1£357
Do 16/104:25DUB - ORD
1 stop17h 05mTAP AIR PORTUGAL
So 26/120:25ORD - DUB
1 stop13h 45mTAP AIR PORTUGAL
Deal found 16/1£379
Di 16/909:15DUB - ORD
1 stop15h 30mIberia
Di 30/922:20ORD - DUB
Nonstop7h 20mIberia
Deal found 16/1£385
Mo 14/412:20DUB - ORD
2 stops33h 50mScandinavian Airlines
So 20/419:15ORD - DUB
2 stops33h 40mScandinavian Airlines
Deal found 16/1£432

Find flights from Dublin to O'Hare Intl within your budget

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 17 Jänner 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Do 3/4

09:50-14:51

1 stop11h 01m

Chicago O'Hare Intl

So 20/4

17:59-10:20

1 stop10h 21m

£329

DublinChicago

DUB - ORD

DUBORD

Dublin

Mo 17/2

18:40-16:15

1 stop27h 35m

Chicago O'Hare Intl

Di 25/2

19:05-17:50

1 stop16h 45m

£336

DublinChicago

DUB - ORD

DUBORD

Dublin

Mo 24/2

10:45-18:25

1 stop13h 40m

Chicago O'Hare Intl

Mo 10/3

22:25-17:15

1 stop13h 50m

£337

DublinChicago

DUB - ORD

DUBORD

Dublin

Fr 23/5

06:05-14:55

1 stop14h 50m

Chicago O'Hare Intl

Mo 26/5

20:15-09:45

Nonstop7h 30m

£338

DublinChicago

DUB - ORD

DUBORD

Dublin

Do 30/1

08:40-14:45

1 stop12h 05m

Chicago O'Hare Intl

Do 6/2

17:00-09:50

1 stop10h 50m

£340

DublinChicago

DUB - ORD

DUBORD

Dublin

So 2/2

05:55-14:30

1 stop14h 35m

Chicago O'Hare Intl

Sa 8/2

13:25-08:45

1 stop13h 20m

£345

DublinChicago

DUB - ORD

DUBORD

Dublin

Sa 1/2

08:55-15:05

1 stop12h 10m

Chicago O'Hare Intl

Fr 7/2

13:40-15:40

2 stops20h 00m

£346

DublinChicago

DUB - ORD

DUBORD

Dublin

Mi 26/2

11:30-17:20

1 stop11h 50m

Chicago O'Hare Intl

Mi 12/3

19:30-10:15

1 stop9h 45m

£357

DublinChicago

DUB - ORD

DUBORD

Dublin

Mi 29/1

16:40-19:15

Nonstop8h 35m

Chicago O'Hare Intl

So 2/2

21:00-10:15

Nonstop7h 15m

£374

DublinChicago

DUB - ORD

DUBORD

Dublin

Mo 14/4

12:20-16:10

2 stops33h 50m

Chicago O'Hare Intl

So 20/4

19:15-10:55

2 stops33h 40m

£432

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Showing 1-10 of 24 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.

Travel insights for flights from Dublin to O'Hare Intl

Get recent, data-driven insights about flights from Dublin to O'Hare Intl including ideal travel times, pricing trends, and 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 10 January 2025.

The best time to book flights from Dublin to Chicago O'Hare Intl Airport is 68 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 17 Jänner 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 morning.

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 17 Jänner 2025.

The most flights from DUB to ORD are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 17 Jänner 2025.
Read reviews from past customers who have flown KLM, TAP AIR PORTUGAL and British Airways 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
8,512 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

Delta
8.0
Very Good
8,512 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

SWISS
7.5
Good
1,598 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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 3 daily outbound flights to Chicago O'Hare Intl from 7 different airlines.

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

    Currently priced at £329, United Airlines will fly you from Dublin to Chicago O'Hare Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from SWISS and Lufthansa - these airlines can fly you to your destination from £336 and £337, respectively. United Airlines is 30% 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 £358. Users have also found prices from £359 and £415 on Icelandair and Aer Lingus, 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: American Airlines (65%), Aer Lingus (65%), British Airways( 65%).

  • 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 £1,128, our data indicates the cheapest price to be £360. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £322.

  • 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

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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 7 airlines flying from Dublin to O'Hare Intl

Discover the top 7 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 17 Jänner 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£283Average£470FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£317Average£442FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£320Average£615FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£323Average£494FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£331Average£455FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapest£414Average£620FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£464Average£614FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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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?

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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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