Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Dublin to Chicago from £342

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
6 Sep — 13 Sep1
1 adult

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

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 1 September 2025.

Round-trip from

£342

Popular in

July

Cheapest in

January

Average price

£384

Good round-trip deal

£463 or less

Good one-way deal

£530 or less
Lufthansa
  • Lufthansa
  • 16/9-28/9
  • 2 total stops
  • 30h 35m total
  • Dublin to Chicago
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£56 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 September 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

Find flight deals from Dublin to Chicago

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 1 September 2025.

Tue 16/905:55DUB - ORD
1 stop15h 00mLufthansa
Sun 28/921:40ORD - DUB
1 stop15h 35mLufthansa
Deal found 30/8£342
Tue 9/908:55DUB - ORD
1 stop11h 15mDelta
Mon 15/917:10ORD - DUB
1 stop15h 50mDelta
Deal found 1/9£343
Sat 13/909:20DUB - ORD
1 stop16h 51mUnited Airlines
Sat 20/920:20ORD - DUB
Nonstop7h 25mUnited Airlines
Deal found 1/9£343
Thu 30/1005:55DUB - MDW
2 stops17h 30mDelta
Sun 2/1118:23MDW - DUB
2 stops15h 22mDelta
Deal found 30/8£343
Thu 30/1008:50DUB - ORD
2 stops16h 33mDelta
Wed 12/1110:35ORD - DUB
2 stops15h 15mDelta
Deal found 31/8£344
Fri 31/1005:55DUB - MDW
2 stops17h 00mDelta
Sun 2/1118:23MDW - DUB
2 stops15h 22mDelta
Deal found 1/9£344
Sun 7/905:55DUB - ORD
1 stop14h 15mDelta
Sun 14/910:15ORD - DUB
1 stop18h 30mDelta
Deal found 31/8£345
Fri 24/1020:00DUB - ORD
2 stops51h 55mScandinavian Airlines
Fri 7/1119:20ORD - DUB
2 stops34h 00mScandinavian Airlines
Deal found 30/8£346
Wed 26/1105:55DUB - MDW
2 stops18h 13mDelta
Mon 1/1212:47MDW - DUB
1 stop12h 58mDelta
Deal found 29/8£346
Sun 7/905:55DUB - ORD
1 stop14h 15mDelta
Mon 15/913:00ORD - DUB
2 stops13h 20mDelta
Deal found 30/8£346
Thu 30/1005:55DUB - MDW
2 stops17h 30mDelta
Wed 12/1112:47MDW - DUB
1 stop12h 58mDelta
Deal found 31/8£346
Sun 7/905:55DUB - ORD
2 stops17h 09mDelta
Tue 16/918:28ORD - DUB
2 stops14h 32mDelta
Deal found 30/8£347

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 1 September 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

Thu 16/10

05:55-12:55

1 stop13h 00m

Chicago O'Hare Intl

Thu 23/10

21:40-16:55

1 stop13h 15m

£342

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 19/12

05:55-14:20

1 stop14h 25m

Chicago O'Hare Intl

Sun 11/1

10:40-07:50

2 stops15h 10m

£342

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

05:55-14:55

1 stop15h 00m

Chicago O'Hare Intl

Sun 28/9

21:40-19:15

1 stop15h 35m

£342

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

09:20-18:54

2 stops15h 34m

Chicago O'Hare Intl

Mon 29/9

10:40-07:45

1 stop15h 05m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 24/10

20:00-17:55

2 stops51h 55m

Chicago O'Hare Intl

Mon 3/11

19:20-11:45

1 stop34h 25m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 24/10

05:55-14:10

1 stop14h 15m

Chicago O'Hare Intl

Mon 3/11

13:25-15:45

2 stops20h 20m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 24/10

20:00-17:55

2 stops51h 55m

Chicago O'Hare Intl

Thu 6/11

19:20-09:25

1 stop32h 05m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 12/9

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Sun 21/9

17:10-15:00

1 stop15h 50m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 25/10

20:05-17:55

2 stops27h 50m

Chicago O'Hare Intl

Thu 6/11

19:20-09:25

1 stop32h 05m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Mon 29/9

17:10-15:00

1 stop15h 50m

£343

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 32 results
1
2
3
4

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 29 August 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, January is the cheapest month in which you can book a flight from Dublin to Chicago (average of £595). Flying from Dublin to Chicago 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 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 1 September 2025.

One of the essential ways to save on airfare from Dublin to Chicago is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 19% on airfare.

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 1 September 2025.

The most flights from DUB to CHI are scheduled on a Saturday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (19 on average).

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 48% 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 £279.

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 Toronto (YYZ) have the shortest average one-way travel time for one-stop routes: 11h 04m.

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 1 September 2025.
Read through reviews of airlines operating flights from Dublin to Chicago, such as Finnair, United Airlines, andAer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.5

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,321 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.5

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
8,936 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.5

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Aer Lingus
7.2
Good
1,248 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.5

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Brussels Airlines
7.2
Good
357 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.5

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Icelandair
7.0
Good
539 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.5

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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 19 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 £342, Lufthansa can have you in Chicago from Dublin in 13h. There are 3661 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 £278, 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 £297 and £313, respectively. Icelandair is currently priced 35% 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 United Airlines (£386), JetBlue (£395), and Delta (£460).

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

    The top 3 most reliable airlines when flying from Dublin to Chicago are Iberia (85%), American Airlines (58%) and Aer Lingus (58%).

  • What are the cheapest flights from Dublin to Chicago?

    The cheapest flight price from Dublin to Chicago is £343. On average you can expect to pay £1,042. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for £336.

  • 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, January is the cheapest month in which you can book a flight from Dublin to Chicago (average of £595). Flying from Dublin to Chicago 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

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 Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to O'Hare Intl flights
Dublin to Midway 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 1 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£278Average£406FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£297Average£483FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£313Average£531FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£334Average£446FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£344Average£630FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£486Average£586FlexibilityNo 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.

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.