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$359+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Round-trip from

$513
(Icelandair)

One-way from

$359
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$550

Good round-trip deal

$704 or less

Good one-way deal

$543 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 ($108 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 April 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 April 17, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:15 pmDUB - ORD
1 stop12h 00mIcelandair
Wed 5/287:25 pmORD - DUB
1 stop11h 50mIcelandair
Deal found 4/16$435
This Scandinavian Airlines deal was found by Cheapflights users on 4/16. 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 10/2912:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
Mon 11/37:20 pmORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 4/16$451
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 5/239:20 amDUB - ORD
1 stop35h 23mUnited Airlines
Sun 5/2511:23 amORD - DUB
1 stop13h 47mUnited Airlines
Deal found 4/16$514
This Bravofly deal was found by Cheapflights users on 4/16. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2311:35 amDUB - ORD
Nonstop8h 25mAer Lingus
Wed 4/309:15 pmORD - DUB
Nonstop7h 25mAer Lingus
Deal found 4/16$515
This TravelUp deal was found by Cheapflights users on 4/17. 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.
Thu 5/1511:00 amDUB - MDW
1 stop12h 43mKLM
Mon 5/261:55 pmMDW - DUB
1 stop12h 00mKLM
Deal found 4/17$516
This Delta deal was found by Cheapflights users on 4/16. 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.
Fri 5/235:55 amDUB - ORD
1 stop14h 15mDelta
Mon 5/261:45 pmORD - DUB
2 stops14h 40mDelta
Deal found 4/16$527
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:15 pmDUB - ORD
2 stops25h 12mMultiple Airlines
Wed 5/289:08 pmORD - DUB
2 stops31h 57mMultiple Airlines
Deal found 4/17$528
This Delta deal was found by Cheapflights users on 4/16. 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.
Thu 4/245:55 amDUB - MDW
2 stops18h 25mDelta
Thu 5/15:59 pmMDW - DUB
2 stops15h 01mDelta
Deal found 4/16$528
This Air Canada deal was found by Cheapflights users on 4/17. 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.
Sat 9/139:50 amDUB - ORD
2 stops16h 21mAir Canada
Fri 9/263:35 pmORD - DUB
1 stop10h 10mAir Canada
Deal found 4/17$535
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sun 9/71:45 pmDUB - ORD
Nonstop8h 00mAmerican Airlines
Sat 9/132:30 pmORD - DUB
1 stop10h 00mAmerican Airlines
Deal found 4/16$539
This CheapTickets.ch deal was found by Cheapflights users on 4/16. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:00 pmDUB - MDW
1 stop11h 45mAir France
Wed 5/281:55 pmMDW - DUB
1 stop12h 00mAir France
Deal found 4/16$541
This Lufthansa deal was found by Cheapflights users on 4/16. 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.
Thu 4/2411:35 amDUB - ORD
Nonstop8h 00mLufthansa
Fri 5/25:50 pmORD - DUB
1 stop17h 05mLufthansa
Deal found 4/16$543

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 April 17, 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

Sun 9/14

12:15 pm-9:15 pm

1 stop15h 00m

Chicago O'Hare Intl

Sun 9/28

7:25 pm-1:15 pm

1 stop11h 50m

$513

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/23

12:20 pm-4:10 pm

2 stops33h 50m

Chicago O'Hare Intl

Thu 5/29

7:15 pm-6:15 pm

1 stop17h 00m

$515

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/23

9:20 am-2:43 pm

1 stop35h 23m

Chicago O'Hare Intl

Thu 5/29

8:15 pm-9:45 am

Nonstop7h 30m

$516

DublinChicago

DUB - MDW

DUBMDW

Dublin

Thu 5/15

11:00 am-5:43 pm

1 stop12h 43m

Chicago Midway

Mon 5/26

1:55 pm-7:55 am

1 stop12h 00m

$516

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 5/3

8:35 am-3:55 pm

1 stop13h 20m

Chicago O'Hare Intl

Sat 5/24

9:15 pm-2:25 pm

1 stop11h 10m

$522

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 5/10

8:55 am-2:10 pm

1 stop11h 15m

Chicago O'Hare Intl

Sat 5/17

10:05 am-10:45 am

1 stop18h 40m

$527

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/16

9:20 am-8:00 am

2 stops28h 40m

Chicago O'Hare Intl

Tue 9/30

8:51 am-7:45 am

1 stop16h 54m

$528

DublinChicago

DUB - MDW

DUBMDW

Dublin

Tue 5/13

5:55 am-5:45 pm

2 stops17h 50m

Chicago Midway

Wed 5/28

1:55 pm-7:55 am

1 stop12h 00m

$530

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 5/13

6:40 pm-12:45 pm

1 stop24h 05m

Chicago O'Hare Intl

Wed 5/28

8:15 pm-9:45 am

Nonstop7h 30m

$531

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 4/28

11:35 am-2:00 pm

Nonstop8h 25m

Chicago O'Hare Intl

Sun 5/4

3:45 pm-5:10 am

Nonstop7h 25m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 53 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 April 17, 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 April 17, 2025.

The most flights from DUB to USIL are scheduled on a Thursday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 17, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Dublin to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,327 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 ($446), Aer Lingus ($451), and Icelandair ($461).

  • 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 (88%), American Airlines (82%), British Airways( 82%).

  • What are the cheapest flights from Dublin to Illinois?

    While on average a flight from Dublin to Illinois is generally $1,658, our data shows the cheapest flight currently is $442. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $397 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.

See more FAQs

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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 3 airlines flying from Dublin to Illinois

Discover the top 3 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$401Average$571FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$648Average$745FlexibilityNo cancel feeOn-time69%

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