HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dublin

$393+ Cheap flights from Illinois to Dublin (DUB)

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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Dublin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Dublin

Keep the following information in mind while searching for Illinois to Dublin flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$596
(American Airlines)

One-way from

$393
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$805

Good round-trip deal

$721 or less

Good one-way deal

$509 or less
Provider with most accurate pricing for Chicago (CHI)-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Dublin flights.
Search Deals
From Illinois to Dublin
Search Deals
One-way flight from Illinois to Dublin
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($172 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Dublin.
Search Deals
Price to beat on a one-way flight from Illinois to Dublin.
Search Deals

Find flight deals from Illinois to Dublin

Cheapest flights from Illinois to Dublin
Explore the most affordable flight options available from Illinois to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:54 pmSTL - DUB
1 stop13h 51mIberia
Wed 11/52:05 pmDUB - STL
1 stop14h 24mIberia
Deal found 4/30$472
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2212:50 pmSTL - DUB
1 stop10h 40mAmerican Airlines
Wed 11/511:30 amDUB - STL
2 stops15h 42mAmerican Airlines
Deal found 4/30$496
This British Airways deal was found by Cheapflights users on 4/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/224:52 pmSTL - DUB
2 stops15h 43mBritish Airways
Wed 11/510:25 amDUB - STL
2 stops17h 16mBritish Airways
Deal found 4/30$506
This Scandinavian Airlines deal was found by Cheapflights users on 4/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:20 pmORD - DUB
2 stops34h 00mScandinavian Airlines
Mon 11/177:05 pmDUB - ORD
2 stops32h 57mScandinavian Airlines
Deal found 4/29$595
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:59 pmMDW - DUB
2 stops15h 01mDelta
Wed 8/2011:00 amDUB - MDW
1 stop16h 47mDelta
Deal found 4/28$596
This Air Canada deal was found by Cheapflights users on 4/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/199:24 pmORD - DUB
2 stops28h 21mAir Canada
Fri 8/19:50 amDUB - ORD
1 stop11h 14mAir Canada
Deal found 4/30$598
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:17 amSTL - DUB
2 stops16h 58mUnited Airlines
Tue 8/269:20 amDUB - STL
2 stops31h 18mUnited Airlines
Deal found 4/29$598
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2711:45 pmORD - DUB
1 stop27h 50mTurkish Airlines
Thu 10/21:35 pmDUB - ORD
1 stop26h 05mTurkish Airlines
Deal found 4/30$599
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:20 pmORD - DUB
Nonstop7h 20mIberia
Fri 10/31:45 pmDUB - ORD
Nonstop8h 00mIberia
Deal found 4/29$600
This Iberia deal was found by Cheapflights users on 4/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:00 pmORD - DUB
1 stop10h 50mMultiple Airlines
Thu 8/281:45 pmDUB - ORD
Nonstop8h 00mMultiple Airlines
Deal found 4/30$602
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Thu 8/219:15 amSTL - DUB
1 stop17h 00mAir Canada
Tue 8/269:20 amDUB - STL
1 stop16h 40mAir Canada
Deal found 4/29$606
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/109:40 amMDW - DUB
1 stop17h 15mMultiple Airlines
Fri 8/1510:30 amDUB - MDW
1 stop28h 15mMultiple Airlines
Deal found 4/30$607

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Dublin 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 May 1, 2025.
Use the filters below to find and compare flights from Illinois to Dublin that are best for you.

Fly from

Illinois

Fly to

Dublin

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 7/20

5:40 pm-10:15 am

1 stop10h 35m

Dublin

Thu 7/31

1:45 pm-3:45 pm

Nonstop8h 00m

$596

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Tue 8/12

5:59 pm-3:00 pm

2 stops15h 01m

Dublin

Wed 8/20

11:00 am-9:47 pm

1 stop16h 47m

$596

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 7/19

9:24 pm-7:45 am

2 stops28h 21m

Dublin

Fri 8/1

9:50 am-3:04 pm

1 stop11h 14m

$598

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 7/23

10:25 pm-11:40 am

Nonstop7h 15m

Dublin

Wed 8/6

10:50 am-6:15 pm

1 stop13h 25m

$602

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 7/15

2:30 pm-6:30 am

1 stop10h 00m

Dublin

Thu 7/24

1:45 pm-3:45 pm

Nonstop8h 00m

$603

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 7/28

9:15 pm-10:40 am

Nonstop7h 25m

Dublin

Wed 8/6

11:35 am-2:00 pm

Nonstop8h 25m

$605

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Sun 8/10

9:40 am-8:55 am

1 stop17h 15m

Dublin

Fri 8/15

10:30 am-8:45 am

1 stop28h 15m

$607

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 7/19

9:31 pm-7:10 am

1 stop27h 39m

Dublin

Wed 7/30

9:50 am-7:29 pm

1 stop15h 39m

$609

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 7/29

4:00 pm-8:15 am

1 stop10h 15m

Dublin

Tue 8/5

9:20 am-12:27 pm

2 stops33h 07m

$609

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Tue 8/12

6:38 pm-2:45 pm

2 stops14h 07m

Dublin

Sun 8/24

10:55 am-11:21 pm

2 stops18h 26m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 55 results
1
2
3
...
6

Best time to book a flight from Illinois to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Illinois 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 Illinois to Dublin

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Dublin (average of $509). Flying from Illinois to Dublin in June is currently the most expensive (average of $981). 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 IL to DUB?

Find hourly flight availability from Illinois to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

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

Weekly flight availability from Illinois to Dublin

Explore weekly flight availability from Illinois to Dublin. 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 May 1, 2025.

The most flights from USIL to DUB are scheduled on a Monday (11 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 Dublin by month

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

In terms of precipitation, rainfall in Dublin ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Dublin when rainfall is around 1.9 in.

Temperature in Dublin by month

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

If weather is an important factor for your trip to Dublin, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated May 1, 2025.
See what other customers who have flown with Singapore Airlines, Delta and KLM from Illinois to Dublin 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.
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Crew

8.6

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Singapore Airlines
8.1
Very good
1,292 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Crew

8.6

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Delta
8.0
Very good
7,934 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Crew

8.6

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
KLM
7.8
Good
1,334 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Crew

8.6

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Air Transat
7.8
Good
385 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Crew

8.6

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Austrian Airlines
7.6
Good
781 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Crew

8.6

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

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

    Dublin (DUB), located 5.7 mi from the city center, is the airport you fly into when you book flights from Illinois to Dublin.

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

    The cheapest airlines for a one-way flight from Illinois to Dublin are American Airlines ($393), British Airways ($415), and Finnair ($422).

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

    Most travelers choose Chicago O'Hare Intl - Dublin, Chicago Midway - Dublin or Lambert-St Louis - Dublin when deciding on the best route from Illinois to Dublin.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Dublin on time: American Airlines (73%), Aer Lingus (73%), British Airways (73%).

  • What are the cheapest flights from Illinois to Dublin?

    Looking for the cheapest flight from Illinois to Dublin? While on average our users pay $1,353, our data indicates the cheapest price to be $439. The most popular route (Chicago O'Hare Intl - Dublin), is priced around $385.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Dublin (average of $509). Flying from Illinois to Dublin in June is currently the most expensive (average of $981). 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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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 Illinois to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Dublin flights
John F Kennedy Intl to Dublin flights
Boston to Dublin flights
O'Hare Intl to Dublin flights
LaGuardia to Dublin flights
Dulles Intl to Dublin flights
Seattle to Dublin flights
Dallas/Fort Worth to Dublin flights
Minneapolis to Dublin flights
Philadelphia to Dublin flights
Los Angeles to Dublin flights
San Francisco to Dublin flights
Denver to Dublin flights
Baltimore to Dublin flights
Reagan-National to Dublin flights
Atlanta to Dublin flights
Orlando to Dublin flights
Charlotte to Dublin flights
Cleveland to Dublin flights
Midway to Dublin flights
John F Kennedy Intl to Shannon flights
Hartford to Dublin flights
Stewart to Dublin flights
Boston to Shannon flights
Newark to Shannon flights
Raleigh to Dublin flights
Indianapolis to Dublin flights
Nashville to Dublin flights
Detroit to Dublin flights
Portland to Dublin flights
Love Field to Dublin flights
Hobby to Dublin flights
LaGuardia to Shannon flights
Kansas City to Dublin flights
Austin to Dublin flights
Cincinnati to Dublin flights
Sky Harbor Intl to Dublin flights
Miami to Dublin flights
Ontario to Dublin flights
George Bush Intcntl to Dublin flights
Tampa to Dublin flights
St. Louis to Dublin flights
O'Hare Intl to Shannon flights
Pittsburgh to Dublin flights
Santa Ana to Dublin flights
Fort Lauderdale to Dublin flights
San Diego to Dublin flights
Oakland to Dublin flights
San Jose to Dublin flights
Burbank to Dublin flights

Top 10 airlines flying from Illinois to Dublin

Discover the top 10 airlines that operate flights from Illinois to Dublin. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$196Average$200FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$341Average$484FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$355Average$554FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$475FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$444Average$708FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$482Average$769FlexibilityNo cancel feeOn-time75%
IberiaCheapest$509Average$727FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$513Average$899FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$519Average$657FlexibilityNo cancel feeOn-time70%
FinnairCheapest$526Average$808FlexibilityNo cancel feeOn-time76%

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.