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Cheap flights from Dublin to Chicago from £304

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 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CHI
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to Chicago are usually found in November or December, booked 62 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Dublin to Chicago

Enter your travel dates to find the best prices.

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 22 January 2026.

Wed 13/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 26/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 20/1£325
Tue 5/508:35
DUB
-
ORD
1 stop15h 00m
Multiple Airlines
Thu 14/522:25
ORD
-
DUB
Nonstop7h 25m
Multiple Airlines
Deal found 20/1£331
Tue 5/508:35
DUB
-
ORD
1 stop15h 00m
Multiple Airlines
Mon 11/522:25
ORD
-
DUB
Nonstop7h 25m
Multiple Airlines
Deal found 21/1£334
Fri 17/409:30
DUB
-
ORD
1 stop16h 25m
Multiple Airlines
Tue 21/417:00
ORD
-
DUB
1 stop10h 40m
Multiple Airlines
Deal found 21/1£334
Mon 16/320:40
DUB
-
ORD
1 stop24h 45m
Multiple Airlines
Tue 24/321:35
ORD
-
DUB
1 stop11h 45m
Multiple Airlines
Deal found 20/1£339
Tue 31/310:30
DUB
-
ORD
1 stop13h 05m
Multiple Airlines
Tue 7/422:35
ORD
-
DUB
1 stop14h 15m
Multiple Airlines
Deal found 20/1£343
Wed 13/508:35
DUB
-
ORD
1 stop12h 20m
Multiple Airlines
Tue 26/521:15
ORD
-
DUB
1 stop11h 20m
Multiple Airlines
Deal found 21/1£345
Thu 23/409:30
DUB
-
ORD
1 stop16h 25m
Finnair
Mon 27/412:30
ORD
-
DUB
1 stop15h 15m
Finnair
Deal found 20/1£348
Wed 22/409:30
DUB
-
ORD
1 stop16h 25m
Finnair
Sun 26/412:30
ORD
-
DUB
1 stop15h 15m
Finnair
Deal found 20/1£349
Tue 3/205:55
DUB
-
MDW
2 stops18h 00m
Delta
Sun 8/213:26
MDW
-
DUB
2 stops20h 19m
Delta
Deal found 20/1£389
Sun 1/205:55
DUB
-
MDW
2 stops18h 41m
Delta
Sat 7/210:53
MDW
-
DUB
2 stops15h 52m
Delta
Deal found 20/1£392
Thu 29/105:55
DUB
-
MDW
2 stops18h 00m
Delta
Wed 4/206:00
MDW
-
DUB
2 stops20h 45m
Delta
Deal found 20/1£398

Find 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 22 January 2026.

Round-trip from

£325

One-way from

£304

Popular in

July

Cheapest in

November

Average price

£439

Good round-trip deal

£464 or less

Good one-way deal

£257 or less
Finnair
  • Finnair
  • 13/5-26/5
  • Nonstop
  • 15h 25m total
  • Dublin to Chicago
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 17/2
  • 1 total stop
  • 28h 05m total
  • Dublin to Chicago
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£50 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 January 2026
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 22 January 2026.
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

Fri 22/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Tue 2/6

22:25-11:50

Nonstop7h 25m

£325

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 15/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Mon 25/5

22:25-11:50

Nonstop7h 25m

£325

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 13/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Tue 26/5

22:25-11:50

Nonstop7h 25m

£328

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 13/5

08:35-14:55

1 stop12h 20m

Chicago O'Hare Intl

Tue 26/5

22:25-11:50

Nonstop7h 25m

£334

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 9/4

09:30-19:55

1 stop16h 25m

Chicago O'Hare Intl

Mon 13/4

17:00-09:40

1 stop10h 40m

£334

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 5/5

08:35-15:00

1 stop12h 25m

Chicago O'Hare Intl

Thu 14/5

22:25-11:50

Nonstop7h 25m

£334

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 31/3

10:30-17:35

1 stop13h 05m

Chicago O'Hare Intl

Tue 7/4

22:35-18:50

1 stop14h 15m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 22/4

09:30-19:55

1 stop16h 25m

Chicago O'Hare Intl

Sun 26/4

12:30-09:45

1 stop15h 15m

£349

DublinChicago

DUB - MDW

DUBMDW

Dublin

Thu 5/2

05:55-17:55

2 stops18h 00m

Chicago Midway

Tue 10/2

18:35-15:45

2 stops15h 10m

£389

DublinChicago

DUB - MDW

DUBMDW

Dublin

Sun 1/2

05:55-18:36

2 stops18h 41m

Chicago Midway

Mon 9/2

10:46-08:45

2 stops15h 59m

£392

Flights are sorted by cheapest return flights first.

Deals found on 20/1

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 16 January 2026.

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, March 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 22 January 2026.

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 22 January 2026.

The most flights from DUB to CHI are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 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 46% 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 £281.

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.

How often are flights from Dublin to Chicago delayed?

About 13% of weekly flights between Dublin and Chicago have experienced delays in the past year, with the average delay time being 132 minutes.

What is the most punctual flight time for Dublin to Chicago flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Dublin to Chicago flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 7% of flights being delayed.

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 22 January 2026.
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
9,190 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,190 reviews
United Airlines
7.4
Good
9,190 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.2
Good
1,439 reviews
United Airlines
7.4
Good
9,190 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Brussels Airlines
7.2
Good
382 reviews
United Airlines
7.4
Good
9,190 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
602 reviews
United Airlines
7.4
Good
9,190 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,691 reviews
United Airlines
7.4
Good
9,190 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 8 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 £325, Finnair can have you in Chicago from Dublin in 8h. 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 £241, 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 £299 and £315, respectively. Icelandair is currently priced 45% below the average price you’ll pay for this route.

  • 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 (84%), Austrian Airlines (83%) and Brussels Airlines (83%).

  • What are the cheapest flights from Dublin to Chicago?

    The cheapest flight price from Dublin to Chicago is £256. On average you can expect to pay £902. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for £343.

  • 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, March 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 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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£241Average£339FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£299Average£419FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£315Average£446FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£346Average£488FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£354Average£625FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£453Average£504FlexibilityNo 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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