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$412+ Cheap flights from Dublin (DUB) to Illinois

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Dublin to Illinois

Keep the following information in mind while searching for Dublin to Illinois flight deals. Data was last updated July 30, 2025.

Round-trip from

$482
(Delta)

One-way from

$412
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$750

Good round-trip deal

$741 or less

Good one-way deal

$641 or less
From Dublin to Illinois
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One-way flight from Dublin to Illinois
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Highest demand for flights based on searches. 15% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT 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 Illinois.
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Price to beat on a one-way flight from Dublin to Illinois.
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Find flight deals from Dublin to Illinois

Cheapest flights from Dublin to Illinois
Explore the most affordable flight options available from Dublin to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:00 amDUB - ORD
2 stops19h 09mDelta
Sun 9/711:05 amORD - DUB
1 stop16h 55mDelta
Deal found 7/29$482
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:00 pmDUB - MDW
1 stop11h 37mDelta
Sun 9/710:31 amMDW - DUB
1 stop16h 14mDelta
Deal found 7/29$483
This Air Canada deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/149:20 amDUB - ORD
1 stop35h 40mAir Canada
Sat 9/276:20 pmORD - DUB
1 stop31h 55mAir Canada
Deal found 7/29$484
This Lufthansa deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1611:35 amDUB - ORD
Nonstop8h 00mLufthansa
Wed 10/18:20 pmORD - DUB
Nonstop7h 25mLufthansa
Deal found 7/29$486
This Finnair deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:45 pmDUB - ORD
Nonstop8h 00mFinnair
Mon 9/2910:15 pmORD - DUB
Nonstop7h 25mFinnair
Deal found 7/28$487
This Air France deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/612:00 pmDUB - MDW
1 stop11h 37mAir France
Mon 9/156:15 pmMDW - DUB
1 stop9h 45mAir France
Deal found 7/28$487
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:45 pmDUB - ORD
1 stop11h 30mAmerican Airlines
Mon 9/88:35 amORD - DUB
1 stop15h 55mAmerican Airlines
Deal found 7/28$488
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:35 amDUB - ORD
Nonstop8h 00mUnited Airlines
Fri 9/1211:40 amORD - DUB
1 stop13h 30mUnited Airlines
Deal found 7/28$490
This Scandinavian Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 amDUB - ORD
2 stops36h 15mScandinavian Airlines
Sun 11/27:20 pmORD - DUB
2 stops18h 15mScandinavian Airlines
Deal found 7/30$494
This KLM deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:00 amDUB - MDW
1 stop13h 35mKLM
Sun 9/281:43 pmMDW - DUB
1 stop12h 12mKLM
Deal found 7/29$495
This TravelUp deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/79:30 amDUB - ORD
1 stop15h 20mIberia
Sat 9/1310:15 pmORD - DUB
Nonstop7h 25mIberia
Deal found 7/29$498
This Finnair deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:55 pmDUB - ORD
1 stop14h 24mMultiple Airlines
Fri 1/21:15 pmORD - DUB
1 stop11h 55mMultiple Airlines
Deal found 7/29$499

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin to Illinois 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 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Dublin to Illinois that are best for you.

Fly from

Dublin

Fly to

Illinois

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 9/1

6:00 am-7:09 pm

2 stops19h 09m

Chicago O'Hare Intl

Sun 9/7

11:05 am-10:00 am

1 stop16h 55m

$482

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 9/1

12:00 pm-5:37 pm

1 stop11h 37m

Chicago Midway

Sun 9/7

10:31 am-8:45 am

1 stop16h 14m

$483

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 9/14

9:20 am-3:00 pm

1 stop35h 40m

Chicago O'Hare Intl

Tue 9/30

2:00 pm-8:15 am

1 stop12h 15m

$484

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/16

11:35 am-1:35 pm

Nonstop8h 00m

Chicago O'Hare Intl

Sat 9/27

8:20 pm-9:45 am

Nonstop7h 25m

$486

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/16

1:45 pm-3:45 pm

Nonstop8h 00m

Chicago O'Hare Intl

Mon 9/29

10:15 pm-11:40 am

Nonstop7h 25m

$487

DublinChicago

DUB - MDW

DUBMDW

Dublin

Sat 9/6

12:00 pm-5:37 pm

1 stop11h 37m

Chicago Midway

Mon 9/15

6:15 pm-10:00 am

1 stop9h 45m

$487

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 9/1

12:45 pm-1:50 pm

1 stop31h 05m

Chicago O'Hare Intl

Mon 9/8

10:15 pm-11:40 am

Nonstop7h 25m

$488

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 9/4

11:35 am-1:35 pm

Nonstop8h 00m

Chicago O'Hare Intl

Fri 9/12

11:40 am-7:10 am

1 stop13h 30m

$490

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/29

11:30 am-6:45 pm

2 stops36h 15m

Chicago O'Hare Intl

Sun 11/2

7:20 pm-7:35 pm

2 stops18h 15m

$494

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 9/17

10:00 am-5:35 pm

1 stop13h 35m

Chicago Midway

Sun 9/28

1:43 pm-7:55 am

1 stop12h 12m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 42 results
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Best time to book a flight from Dublin to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Dublin with our price prediction graph.
Estimated round-trip 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 Illinois

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

Currently, August is the cheapest month in which you can book a flight from Dublin to Illinois (average of $245). Flying from Dublin to Illinois in March is currently the most expensive (average of $321). 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 IL?

Find hourly flight availability from Dublin to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

When flying from Dublin to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Dublin to Illinois

Explore weekly flight availability from Dublin to Illinois. 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 July 30, 2025.

The most flights from DUB to USIL 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).

How much does it cost to fly round-trip from Dublin to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated July 30, 2025.
Read reviews from past customers who have flown Delta, Alaska Airlines, and KLM from Dublin to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Alaska Airlines
8.0
Very good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

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

    Located just 5.7 mi from the city center, Dublin (DUB) is the airport most travelers will use when flying to Illinois from Dublin.

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

    The cheapest airlines for a one-way flight from Dublin to Illinois are WestJet ($504), Icelandair ($567), and Aer Lingus ($569).

  • What are the most popular routes from Dublin to Illinois?

    The most popular flight routes from Dublin to Illinois are Dublin - Chicago O'Hare Intl, Dublin - Chicago Midway and Dublin - Lambert-St Louis.

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

    Before booking your flight to Illinois from Dublin, check out the most reliable airlines to get you to your destination on time: Aer Lingus (56%), American Airlines (56%), British Airways( 56%).

  • What are the cheapest flights from Dublin to Illinois?

    While on average a flight from Dublin to Illinois is generally $1,515, our data shows the cheapest flight currently is $507. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $381 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dublin to Illinois 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 Illinois?

    Currently, August is the cheapest month in which you can book a flight from Dublin to Illinois (average of $245). Flying from Dublin to Illinois in March is currently the most expensive (average of $321). 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.

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Alternative routes for Dublin to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Dublin to Illinois

Discover the top 2 airlines that operate flights from Dublin to Illinois. 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 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$447Average$582FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$667Average$757FlexibilityNo cancel feeOn-time69%

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