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Cheap flights from Dublin to Chicago from £334

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Dublin to Chicago are usually found in September or January, booked 62 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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Cheapest flights from Dublin to Chicago
Explore the most affordable flight options available from Dublin to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.

Tue 2/1211:30DUB - ORD
1 stop12h 14mMultiple Airlines
Tue 9/1220:35ORD - DUB
1 stop11h 45mMultiple Airlines
Deal found 2/11£355
Sun 9/1108:50DUB - ORD
1 stop11h 30mDelta
Tue 18/1117:20ORD - DUB
1 stop16h 25mDelta
Deal found 2/11£355
Mon 10/1108:50DUB - ORD
1 stop11h 30mDelta
Sun 16/1115:47ORD - DUB
1 stop11h 33mDelta
Deal found 3/11£358
Sun 9/1105:55DUB - ORD
1 stop14h 25mDelta
Sun 16/1107:00ORD - DUB
2 stops19h 05mDelta
Deal found 2/11£359
Wed 17/1208:45DUB - ORD
1 stop12h 25mDelta
Sat 10/117:20ORD - DUB
1 stop16h 25mDelta
Deal found 2/11£360
Fri 14/1115:20DUB - ORD
Nonstop8h 35mAer Lingus
Mon 8/1215:50ORD - DUB
Nonstop7h 20mAer Lingus
Deal found 3/11£361
Sun 23/1105:55DUB - ORD
2 stops18h 16mDelta
Sat 29/1107:00ORD - DUB
1 stop19h 45mDelta
Deal found 3/11£362
Mon 10/1105:55DUB - MDW
2 stops18h 13mDelta
Tue 18/1110:47MDW - DUB
2 stops15h 58mDelta
Deal found 3/11£362
Sat 15/1110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Sun 28/1219:20ORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 3/11£362
Mon 10/1105:55DUB - MDW
2 stops18h 23mDelta
Sun 16/1109:34MDW - DUB
2 stops16h 11mDelta
Deal found 3/11£362
Tue 9/1205:55DUB - MDW
2 stops18h 05mDelta
Tue 16/1209:34MDW - DUB
2 stops16h 11mDelta
Deal found 3/11£363
Fri 5/1211:30DUB - ORD
Nonstop8h 30mAer Lingus
Mon 8/1219:40ORD - DUB
Nonstop7h 20mAer Lingus
Deal found 3/11£364

Cheap flight deals from Dublin to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Chicago (CHI). 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 4 November 2025.

Round-trip from

£350

One-way from

£334

Popular in

July

Cheapest in

September

Average price

£389

Good round-trip deal

£426 or less

Good one-way deal

£503 or less
British Airways
  • British Airways
  • 9/2-15/2
  • 3 total stops
  • 44h 35m total
  • Dublin to Chicago
Search Deals
Aer Lingus
  • Aer Lingus
  • 29/4
  • 1 total stop
  • 13h 00m total
  • Dublin to Chicago
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Dublin to Chicago (CHI).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Chicago 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 4 November 2025.
Use the filters below to find and compare flights from Dublin to Chicago that are best for you.

Fly from

Dublin

Fly to

Chicago

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 10/2

18:00-13:50

1 stop25h 50m

Chicago O'Hare Intl

Tue 17/2

18:45-17:00

1 stop16h 15m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/2

10:30-13:50

1 stop33h 20m

Chicago O'Hare Intl

Tue 17/2

18:45-17:00

1 stop16h 15m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/2

08:50-15:25

1 stop12h 35m

Chicago O'Hare Intl

Fri 13/2

15:28-15:05

2 stops17h 37m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 7/2

10:55-13:50

1 stop32h 55m

Chicago O'Hare Intl

Tue 17/2

18:45-17:00

1 stop16h 15m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 9/2

15:10-13:50

1 stop28h 40m

Chicago O'Hare Intl

Sun 15/2

16:25-14:20

2 stops15h 55m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 8/2

19:25-13:50

1 stop24h 25m

Chicago O'Hare Intl

Tue 17/2

20:45-17:00

1 stop14h 15m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 11/2

10:20-17:00

1 stop12h 40m

Chicago O'Hare Intl

Sun 15/2

16:25-15:05

2 stops16h 40m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/2

08:50-23:27

2 stops20h 37m

Chicago O'Hare Intl

Sun 15/2

16:25-14:20

2 stops15h 55m

£354

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 14/11

05:55-14:20

1 stop14h 25m

Chicago O'Hare Intl

Mon 8/12

10:36-08:00

2 stops15h 24m

£355

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 27/3

11:30-20:07

1 stop13h 37m

Chicago O'Hare Intl

Tue 31/3

22:35-17:05

1 stop12h 30m

£355

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 33 results
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Best time to book a flight from Dublin to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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

How far ahead should I book a flight from Dublin to Chicago?

Use this chart to determine the optimal time to book a return flight from Dublin to Chicago. Price data was last updated on 31 October 2025.

The price you pay for your flight from Dublin to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Dublin to Chicago?

Currently, February is the cheapest month in which you can book a flight from Dublin to Chicago (average of £298). Flying from Dublin to Chicago in July is currently the most expensive (average of £474). 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 CHI?

Find hourly flight availability from Dublin to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 November 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Chicago as you normally would.

Weekly flight availability from Dublin to Chicago

Explore weekly flight availability from Dublin to Chicago. 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 4 November 2025.

The most flights from DUB to CHI are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost for a return flight from Dublin to Chicago?

What’s the top stopover airport for flights from Dublin to Chicago?

Share of one-stop return flights from Dublin to Chicago chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 44% of one-stop itineraries from Dublin to Chicago on Cheapflights.

What’s the cheapest stopover airport for flights from Dublin to Chicago?

Average return fare for one-stop flights from Dublin to Chicago, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £287.

What’s the fastest stopover option from Dublin to Chicago?

Shortest average travel time for one-stop one-way flights from Dublin to Chicago, 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 15m.

Which airport typically offers the quickest stopover for flights from Dublin to Chicago?

Average stopover duration for one-stop one-way flights from Dublin to Chicago, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average stopover time of 0h 59m.

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 4 November 2025.
Read through reviews of airlines operating flights from Dublin to Chicago, such as United Airlines, Aer Lingus, andBrussels Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,996 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,996 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Aer Lingus
7.2
Good
1,365 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Brussels Airlines
7.2
Good
369 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Icelandair
7.1
Good
568 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,494 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Dublin to Chicago. 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?

    For a flight from Dublin to Chicago, you will be flying from Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 13 outbound flights to Chicago per day. 6 airlines have flights to Chicago from Dublin on a regular basis.

  • How long is the flight from Dublin to Chicago?

    For as low as £362, British Airways can have you in Chicago from Dublin in 18h 42m. There are 3664 mi between Dublin and Chicago. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Dublin to Chicago round-trip?

    Currently priced at £246, Icelandair will fly you from Dublin to Chicago and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Finnair - these airlines can fly you to your destination from £306 and £322, respectively. Icelandair is currently priced 44% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Dublin to Chicago one-way?

    The cheapet airlines for a one-way flight from Dublin to Chicago are Aer Lingus (£334), British Airways (£364), and Delta (£467).

  • What are the most reliable airlines from Dublin to Chicago?

    The top 3 most reliable airlines when flying from Dublin to Chicago are Air Canada (86%), Austrian Airlines (75%) and Brussels Airlines (75%).

  • What are the cheapest flights from Dublin to Chicago?

    The cheapest flight price from Dublin to Chicago is £342. On average you can expect to pay £1,000. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for £320.

  • Can I find deals for flights from Dublin to Chicago that include hotel bookings?

    Yes. In addition to deals on Dublin to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Chicago?

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

  • Can I find deals for business class flights from Dublin to Chicago?

    Yes. Cheapflights offers flight deals from Dublin to Chicago 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?

    Currently, February is the cheapest month in which you can book a flight from Dublin to Chicago (average of £298). Flying from Dublin to Chicago in July is currently the most expensive (average of £474). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dublin to Chicago

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

Top 6 airlines flying from Dublin to Chicago

Discover the top 6 airlines that operate flights from Dublin to Chicago. 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 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£246Average£366FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£306Average£488FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£322Average£560FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£350Average£490FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£362Average£636FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£463Average£503FlexibilityNo cancel feeOn-time71%
Search American Airlines 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 Chicago?

Deals for Dublin to Chicago 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 Chicago?

Cheapflights simply makes it quick and affordable to book flights from Dublin to Chicago by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dublin to Chicago with no change fees?

Need flexible booking options for your flight to Chicago 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 Chicago become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Chicago from Dublin today and book when prices fit your budget.

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