HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dublin

$239+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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

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 February 11, 2026.

This FlightHub deal was found by Cheapflights users on 2/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Mon 4/132:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/8$428
This oojo deal was found by Cheapflights users on 2/9. 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.
Fri 11/67:20 pm
ORD
-
DUB
1 stop32h 05m
Scandinavian Airlines
Mon 11/912:30 pm
DUB
-
ORD
1 stop34h 15m
Scandinavian Airlines
Deal found 2/9$429
This oojo deal was found by Cheapflights users on 2/9. 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.
Fri 11/67:20 pm
ORD
-
DUB
1 stop32h 05m
Scandinavian Airlines
Sun 11/1510:55 am
DUB
-
ORD
2 stops35h 50m
Scandinavian Airlines
Deal found 2/9$430
This oojo deal was found by Cheapflights users on 2/9. 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 4/257:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Sat 5/22:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/9$431
This oojo deal was found by Cheapflights users on 2/9. 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.
Fri 4/2410:25 pm
ORD
-
DUB
1 stop30h 40m
Icelandair
Sat 5/22:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/9$433
This FlightHub deal was found by Cheapflights users on 2/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:20 pm
ORD
-
DUB
1 stop34h 25m
Scandinavian Airlines
Mon 11/97:05 pm
DUB
-
ORD
1 stop27h 40m
Scandinavian Airlines
Deal found 2/9$434
This oojo deal was found by Cheapflights users on 2/10. 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.
Sun 4/197:25 pm
ORD
-
DUB
1 stop11h 50m
Icelandair
Sat 4/252:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/10$435
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Sat 5/22:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/11$436
This oojo deal was found by Cheapflights users on 2/9. 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.
Fri 4/1710:25 pm
ORD
-
DUB
1 stop30h 40m
Icelandair
Sat 4/252:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/9$437
This Mytrip deal was found by Cheapflights users on 2/10. 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.
Mon 3/27:20 pm
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Tue 3/1011:30 am
DUB
-
ORD
2 stops35h 15m
Scandinavian Airlines
Deal found 2/10$438
This oojo deal was found by Cheapflights users on 2/10. 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.
Mon 5/47:25 pm
ORD
-
DUB
1 stop11h 50m
Icelandair
Wed 5/1312:15 pm
DUB
-
ORD
1 stop15h 10m
Icelandair
Deal found 2/10$439
This oojo deal was found by Cheapflights users on 2/10. 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.
Thu 11/57:20 pm
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sat 11/1410:05 am
DUB
-
ORD
2 stops36h 40m
Scandinavian Airlines
Deal found 2/10$440

Find flight deals from Illinois to Dublin

Keep the following information in mind while searching for Illinois to Dublin flight deals. Data was last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$428
(FlightHub)

One-way from

$239
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$555

Good round-trip deal

$553 or less

Good one-way deal

$377 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. 13% potential increase in price ($107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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

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 February 11, 2026.
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

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Wed 2/25

1:25 pm-8:10 am

1 stop12h 45m

Dublin

Sun 3/1

9:00 am-12:43 pm

2 stops33h 43m

$458

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 2/21

8:30 am-9:55 am

2 stops19h 25m

Dublin

Mon 3/2

9:00 am-10:14 pm

2 stops43h 14m

$462

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Mon 4/27

10:40 am-9:45 am

1 stop17h 05m

Dublin

Tue 5/5

9:50 am-12:57 pm

2 stops33h 07m

$464

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 2/26

7:41 am-8:10 am

1 stop18h 29m

Dublin

Mon 3/2

9:00 am-3:29 pm

1 stop12h 29m

$471

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 2/21

9:55 am-8:10 am

1 stop16h 15m

Dublin

Sun 3/1

9:00 am-3:29 pm

1 stop12h 29m

$471

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 8/10

1:13 pm-9:45 am

1 stop14h 32m

Dublin

Wed 8/19

9:20 am-8:02 pm

1 stop16h 42m

$473

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 8/10

8:15 am-9:45 am

1 stop19h 30m

Dublin

Fri 8/21

9:20 am-8:02 pm

1 stop16h 42m

$473

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Mon 4/27

7:05 pm-6:40 pm

2 stops17h 35m

Dublin

Tue 5/5

8:25 pm-6:24 pm

2 stops27h 59m

$474

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 4/26

7:45 am-9:45 am

1 stop20h 00m

Dublin

Thu 5/7

9:50 am-8:04 pm

1 stop16h 14m

$477

BloomingtonDublin

BMI - DUB

BMIDUB

Bloomington-Normal

Mon 3/9

12:02 pm-8:45 am

2 stops15h 43m

Dublin

Mon 3/16

9:45 am-11:19 am

2 stops30h 34m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 59 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, January is the cheapest month in which you can book a flight from Illinois to Dublin (average of $344). Flying from Illinois to Dublin in June is currently the most expensive (average of $665). 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 February 11, 2026.

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 February 11, 2026.

The most flights from USIL to DUB are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).

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.

  • How long is the flight from Illinois to Dublin?

    There are many flights that can get you from Illinois to Dublin in 12h 45m. Fly via United Airlines, British Airways, or Delta to get the fastest option. There are 3791 mi between Illinois and Dublin. This flight may include one or multiple stops.

  • 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 TAP AIR PORTUGAL ($218), Icelandair ($275), and Aer Lingus ($275).

  • 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 (75%), Aer Lingus (75%), Iberia (75%).

  • What are the cheapest flights from Illinois to Dublin?

    Looking for the cheapest flight from Illinois to Dublin? While on average our users pay $3,098, our data indicates the cheapest price to be $241. The most popular route (Chicago O'Hare Intl - Dublin), is priced around $410.

  • 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, January is the cheapest month in which you can book a flight from Illinois to Dublin (average of $344). Flying from Illinois to Dublin in June is currently the most expensive (average of $665). 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 Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
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
Dulles Intl to Dublin flights
LaGuardia to Dublin flights
Philadelphia to Dublin flights
Seattle to Dublin flights
Los Angeles to Dublin flights
Dallas/Fort Worth to Dublin flights
Minneapolis to Dublin flights
Charlotte to Dublin flights
San Francisco to Dublin flights
Denver to Dublin flights
Orlando to Dublin flights
Atlanta to Dublin flights
Cleveland to Dublin flights
Reagan-National to Dublin flights
Baltimore to Dublin flights
Detroit to Dublin flights
Midway to Dublin flights
Hartford to Dublin flights
Raleigh to Dublin flights
Indianapolis to Dublin flights
Nashville to Dublin flights
Newark to Shannon flights
John F Kennedy Intl to Shannon flights
Boston to Shannon flights
Hobby to Dublin flights
Portland to Dublin flights
Love Field to Dublin flights
Pittsburgh to Dublin flights
Austin to Dublin flights
LaGuardia to Shannon flights
Columbus to Dublin flights
George Bush Intcntl to Dublin flights
Kansas City to Dublin flights
Tampa to Dublin flights
Miami to Dublin flights
Salt Lake City to Dublin flights
Sky Harbor Intl to Dublin flights
Ontario to Dublin flights
St. Louis to Dublin flights
Fort Lauderdale to Dublin flights
Cincinnati to Dublin flights
San Diego to Dublin flights
New Orleans to Dublin flights
O'Hare Intl to Shannon flights
Santa Ana to Dublin flights
Sacramento 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$568FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$344Average$513FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$470FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$410Average$518FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$425Average$633FlexibilityNo cancel feeOn-time70%
IberiaCheapest$457Average$698FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$470Average$707FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$473Average$770FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$476Average$657FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$487Average$810FlexibilityNo cancel feeOn-timeN/A

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.