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$211+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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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 septiembre 15, 2025.

Round-trip from

$472
(lastminute.com)

One-way from

$211
(oojo)

Popular in

June

Cheapest in

February

Average price

$697

Good round-trip deal

$594 or less

Good one-way deal

$504 or less
From Illinois to Dublin
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One-way flight from Illinois to Dublin
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Highest demand for flights based on searches. 15% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Dublin.
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Price to beat on a one-way flight from Illinois to Dublin.
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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 septiembre 15, 2025.

This lastminute.com deal was found by Cheapflights users on 9/13. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/276:43 pmSTL - DUB
2 stops30h 27mAir Canada
mié. 11/129:00 amDUB - STL
2 stops35h 25mAir Canada
Deal found 9/13$472
This Aunt Betty deal was found by Cheapflights users on 9/13. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/275:58 pmSTL - DUB
1 stop10h 57mUnited Airlines
mié. 11/129:00 amDUB - STL
1 stop12h 29mUnited Airlines
Deal found 9/13$481
This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/59:50 pmORD - DUB
1 stop13h 20mLufthansa
jue. 11/1310:40 amDUB - ORD
Nonstop8h 50mLufthansa
Deal found 9/15$484
This United deal was found by Cheapflights users on 9/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/277:35 pmORD - DUB
Nonstop7h 35mMultiple Airlines
mié. 11/55:10 amDUB - ORD
1 stop20h 55mMultiple Airlines
Deal found 9/15$486
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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.
jue. 11/137:20 pmORD - DUB
1 stop17h 00mScandinavian Airlines
mié. 11/1912:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
Deal found 9/14$487
This United Airlines deal was found by Cheapflights users on 9/14. 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.
lun. 11/1710:00 amSTL - DUB
1 stop16h 10mUnited Airlines
mié. 12/39:00 amDUB - STL
1 stop12h 29mUnited Airlines
Deal found 9/14$487
This Gotogate deal was found by Cheapflights users on 9/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/229:55 amORD - DUB
1 stop16h 20mMultiple Airlines
lun. 10/271:20 pmDUB - ORD
1 stop33h 00mMultiple Airlines
Deal found 9/13$488
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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.
lun. 11/37:20 pmORD - DUB
2 stops33h 25mScandinavian Airlines
dom. 11/1610:10 amDUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 9/15$489
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/176:43 pmSTL - DUB
2 stops30h 27mAir Canada
mié. 11/269:00 amDUB - STL
1 stop12h 29mAir Canada
Deal found 9/13$489
This United Airlines deal was found by Cheapflights users on 9/14. 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.
sáb. 11/89:20 pmORD - DUB
1 stop27h 50mUnited Airlines
jue. 11/2010:40 amDUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 9/14$490
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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.
lun. 11/107:20 pmORD - DUB
1 stop17h 00mScandinavian Airlines
lun. 11/178:20 pmDUB - ORD
2 stops50h 25mScandinavian Airlines
Deal found 9/15$491
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
mié. 10/294:50 pmSTL - DUB
1 stop13h 10mLufthansa
mié. 11/55:10 amDUB - STL
1 stop14h 45mLufthansa
Deal found 9/14$491

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 septiembre 15, 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

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 11/12

1:10 pm-10:20 am

1 stop15h 10m

Dublin

vie. 12/5

9:00 am-3:29 pm

1 stop12h 29m

$487

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 11/17

11:05 am-8:10 am

1 stop15h 05m

Dublin

mié. 11/26

9:00 am-3:29 pm

1 stop12h 29m

$487

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

dom. 11/16

10:00 am-10:20 am

2 stops18h 20m

Dublin

mié. 12/3

9:00 am-3:29 pm

1 stop12h 29m

$492

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 11/11

10:00 am-7:30 am

2 stops15h 30m

Dublin

vie. 12/5

9:00 am-3:29 pm

1 stop12h 29m

$492

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 10/12

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

mar. 10/21

9:50 am-9:09 am

1 stop29h 19m

$495

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 10/15

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

vie. 10/24

11:35 am-1:35 pm

Nonstop8h 00m

$497

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 10/12

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

vie. 10/24

11:35 am-1:35 pm

Nonstop8h 00m

$500

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 10/28

4:05 pm-3:45 pm

2 stops18h 40m

Dublin

mar. 11/18

6:00 am-6:13 pm

2 stops18h 13m

$501

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 10/28

4:56 pm-3:45 pm

2 stops17h 49m

Dublin

mar. 11/11

6:00 am-8:29 pm

2 stops20h 29m

$501

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 10/28

4:56 pm-3:45 pm

2 stops17h 49m

Dublin

jue. 11/6

6:00 am-4:11 pm

2 stops16h 11m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 50 results
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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 $923). 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 septiembre 15, 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 septiembre 15, 2025.

The most flights from USIL to DUB are scheduled on a Monday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 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 13h 57m. Fly via United Airlines, Delta, or KLM to get the fastest option. There are 3664 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 ($211), WestJet ($226), and Aer Lingus ($398).

  • 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: Air France (89%), Iberia (68%), American Airlines (68%).

  • What are the cheapest flights from Illinois to Dublin?

    Looking for the cheapest flight from Illinois to Dublin? While on average our users pay $3,321, our data indicates the cheapest price to be $400. The most popular route (Chicago O'Hare Intl - Dublin), is priced around $372.

  • 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 $923). 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
Swords
Wicklow
Leixlip

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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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$569FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$355Average$543FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$498FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$478FlexibilityNo cancel feeOn-time77%
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$478Average$717FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$498Average$694FlexibilityNo cancel feeOn-time70%
IberiaCheapest$523Average$803FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$528Average$596FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$535Average$676FlexibilityNo cancel feeOn-time67%

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