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Cheap flights from Dublin to Chicago O'Hare Intl Airport from £312

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
6 Jul — 13 Jul1
1 adult

Cheapflights Tip: The best prices from Dublin to Chicago O'Hare Intl are usually found in February or November, booked 72 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 1 July 2025.

Round-trip from

£381

One-way from

£312

Popular in

July

Cheapest in

February

Average price

£560

Good round-trip deal

£458 or less

Good one-way deal

£569 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 15/9-20/9
  • 4 total stops
  • 51h 05m total
  • Dublin to Chicago
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 4/9
  • 1 total stop
  • 27h 20m total
  • Dublin to Chicago
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Highest demand for flights based on searches. 14% potential increase in price (£54 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in July 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 1 July 2025.

Mon 15/912:20DUB - ORD
2 stops33h 50mScandinavian Airlines
Sat 20/910:10ORD - DUB
2 stops17h 15mScandinavian Airlines
Deal found 30/6£381
Mon 15/913:45DUB - ORD
Nonstop8h 00mFinnair
Sun 28/922:15ORD - DUB
Nonstop7h 25mFinnair
Deal found 30/6£382
Thu 30/1009:20DUB - ORD
1 stop16h 45mMultiple Airlines
Tue 4/1118:20ORD - DUB
1 stop10h 00mMultiple Airlines
Deal found 29/6£383
Fri 31/1010:40DUB - ORD
Nonstop8h 50mBrussels Airlines
Sun 2/1118:35ORD - DUB
Nonstop7h 35mBrussels Airlines
Deal found 30/6£384
Fri 31/1008:00DUB - ORD
1 stop12h 11mUnited Airlines
Mon 3/1118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Deal found 30/6£384
Fri 26/1205:55DUB - ORD
1 stop14h 35mKLM
Sat 3/115:18ORD - DUB
1 stop10h 27mKLM
Deal found 29/6£389
Fri 19/1205:55DUB - ORD
2 stops18h 43mDelta
Tue 30/1212:35ORD - DUB
1 stop13h 10mDelta
Deal found 29/6£393
Wed 10/913:45DUB - ORD
Nonstop8h 00mAmerican Airlines
Wed 1/1022:15ORD - DUB
Nonstop7h 25mAmerican Airlines
Deal found 30/6£442
Tue 16/909:20DUB - ORD
2 stops15h 34mAir Canada
Mon 29/910:50ORD - DUB
2 stops14h 55mAir Canada
Deal found 30/6£454
Thu 14/818:50DUB - ORD
1 stop27h 20mTAP AIR PORTUGAL
Thu 21/820:50ORD - DUB
1 stop15h 15mTAP AIR PORTUGAL
Deal found 30/6£456
Sat 22/1108:45DUB - ORD
1 stop12h 40mBritish Airways
Mon 24/1113:10ORD - DUB
2 stops15h 05mBritish Airways
Deal found 29/6£456
Sat 20/911:35DUB - ORD
Nonstop8h 25mAer Lingus
Sat 4/1022:15ORD - DUB
Nonstop7h 25mAer Lingus
Deal found 30/6£458

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 1 July 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

Mon 15/9

12:20-16:10

2 stops33h 50m

Chicago O'Hare Intl

Sat 20/9

10:10-09:25

2 stops17h 15m

£381

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 15/9

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Sun 28/9

22:15-11:40

Nonstop7h 25m

£382

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 30/10

09:20-21:05

1 stop16h 45m

Chicago O'Hare Intl

Tue 4/11

18:20-10:20

1 stop10h 00m

£383

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 31/10

10:40-14:30

Nonstop8h 50m

Chicago O'Hare Intl

Sun 2/11

18:35-08:10

Nonstop7h 35m

£384

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 31/10

08:00-15:11

1 stop12h 11m

Chicago O'Hare Intl

Mon 3/11

18:35-08:10

Nonstop7h 35m

£384

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 26/12

05:55-14:30

1 stop14h 35m

Chicago O'Hare Intl

Sat 3/1

15:18-07:45

1 stop10h 27m

£389

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 19/12

05:55-18:38

2 stops18h 43m

Chicago O'Hare Intl

Tue 30/12

12:35-07:45

1 stop13h 10m

£393

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/9

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Wed 1/10

22:15-11:40

Nonstop7h 25m

£442

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

09:20-18:54

2 stops15h 34m

Chicago O'Hare Intl

Mon 29/9

10:50-07:45

2 stops14h 55m

£454

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 14/8

18:50-16:10

1 stop27h 20m

Chicago O'Hare Intl

Thu 21/8

20:50-18:05

1 stop15h 15m

£456

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 18 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.
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 27 June 2025.

The best time to book flights from Dublin to Chicago O'Hare Intl Airport is 72 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 1 July 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 1 July 2025.

The most flights from DUB to ORD are scheduled on a Monday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

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 1 July 2025.
See what other customers who have flown with Delta, KLM, andFinnair 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.
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,973 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,301 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.3
Good
2,920 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 17 daily outbound flights to Chicago O'Hare Intl from 6 different airlines.

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

    Currently priced at £381, 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 Finnair and Brussels Airlines - these airlines can fly you to your destination from £382 and £384, respectively. Scandinavian Airlines is 12% 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 £312. Users have also found prices from £411 and £424 on JetBlue and Finnair, 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: SWISS (83%), Air Canada (77%), Austrian Airlines( 77%).

  • 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 £961, our data indicates the cheapest price to be £336. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £499.

  • 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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Book flights to Dublin if you plan to visit one of these locations
Downers Grove
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Beloit
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Alternative routes for Dublin to O'Hare Intl

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Dublin to Midway flights

Top 6 airlines flying from Dublin to O'Hare Intl

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 858,174 searches. Data last updated 1 July 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£253Average£352FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£282Average£496FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£285Average£517FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£301Average£435FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£360Average£537FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£369Average£542FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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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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