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$227+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
feb. 14 — feb. 211
sáb. 2/14
sáb. 2/21
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 enero 15, 2026.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$405
(oojo)

One-way from

$227
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$564

Good round-trip deal

$573 or less

Good one-way deal

$400 or less
Provider with most accurate pricing for Chicago (CHI)-Dublin flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Dublin flights.
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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. 14% potential increase in price ($115 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 January 2026
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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 enero 15, 2026.

This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/119:35 pm
STL
-
DUB
1 stop15h 15m
British Airways
mar. 8/2512:50 pm
DUB
-
STL
1 stop12h 40m
British Airways
Deal found 1/13$401
This Ovago deal was found by Cheapflights users on 1/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/129:35 pm
STL
-
DUB
1 stop11h 05m
British Airways
mar. 8/2510:30 am
DUB
-
STL
1 stop15h 00m
British Airways
Deal found 1/13$402
This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/112:01 pm
STL
-
DUB
2 stops16h 14m
British Airways
vie. 2/137:35 am
DUB
-
STL
2 stops19h 37m
British Airways
Deal found 1/13$405
This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/1412:11 pm
STL
-
DUB
2 stops16h 04m
British Airways
mié. 4/221:30 pm
DUB
-
STL
1 stop12h 00m
British Airways
Deal found 1/13$406
This United Airlines deal was found by Cheapflights users on 1/15. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/1811:25 am
STL
-
DUB
1 stop14h 45m
United Airlines
vie. 2/279:00 am
DUB
-
STL
2 stops41h 23m
United Airlines
Deal found 1/15$408
This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/119:35 pm
STL
-
DUB
1 stop12h 10m
British Airways
mié. 8/198:40 am
DUB
-
STL
2 stops17h 43m
British Airways
Deal found 1/13$411
This Ovago deal was found by Cheapflights users on 1/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/113:54 pm
STL
-
DUB
2 stops17h 46m
British Airways
mié. 2/187:35 am
DUB
-
STL
2 stops17h 17m
British Airways
Deal found 1/14$413
This Ovago deal was found by Cheapflights users on 1/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/82:00 pm
STL
-
DUB
2 stops18h 35m
British Airways
mar. 3/1712:05 pm
DUB
-
STL
2 stops16h 43m
British Airways
Deal found 1/14$415
This KAYAK deal was found by Cheapflights users on 1/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/118:00 pm
PIA
-
DUB
2 stops16h 15m
British Airways
mar. 8/258:40 am
DUB
-
PIA
2 stops20h 41m
British Airways
Deal found 1/14$416
This Ovago deal was found by Cheapflights users on 1/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/57:02 pm
PIA
-
DUB
2 stops17h 13m
British Airways
mié. 4/2911:15 am
DUB
-
PIA
2 stops18h 17m
British Airways
Deal found 1/14$419
This United Airlines deal was found by Cheapflights users on 1/14. 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.
dom. 1/1811:15 am
ORD
-
DUB
2 stops14h 15m
United Airlines
mar. 1/2710:40 am
DUB
-
ORD
Nonstop8h 50m
United Airlines
Deal found 1/14$421
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/223:45 pm
ORD
-
DUB
Nonstop7h 25m
Iberia
jue. 4/3011:35 am
DUB
-
ORD
Nonstop8h 25m
Iberia
Deal found 1/13$423

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 enero 15, 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

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 4/14

12:11 pm-10:15 am

2 stops16h 04m

Dublin

mié. 4/22

1:30 pm-7:30 pm

1 stop12h 00m

$406

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 2/18

11:25 am-8:10 am

1 stop14h 45m

Dublin

vie. 2/27

9:00 am-8:23 pm

2 stops41h 23m

$408

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

dom. 3/8

2:00 pm-10:15 am

2 stops15h 15m

Dublin

mar. 3/17

7:35 am-5:58 pm

2 stops15h 23m

$412

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 1/26

3:11 pm-8:10 am

1 stop10h 59m

Dublin

mié. 2/11

9:00 am-3:29 pm

1 stop12h 29m

$417

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

dom. 4/5

7:02 pm-6:15 pm

2 stops17h 13m

Dublin

mié. 4/29

11:15 am-11:32 pm

2 stops18h 17m

$419

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 3/24

7:30 pm-10:15 am

1 stop9h 45m

Dublin

mar. 3/31

2:15 pm-6:15 pm

1 stop10h 00m

$422

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 4/19

8:15 pm-9:45 am

Nonstop7h 30m

Dublin

vie. 5/8

11:35 am-1:40 pm

Nonstop8h 05m

$424

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 2/4

1:35 pm-11:15 am

2 stops15h 40m

Dublin

lun. 2/9

7:45 pm-6:45 pm

1 stop29h 00m

$424

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 3/3

8:35 pm-1:35 pm

1 stop11h 00m

Dublin

jue. 4/2

8:35 am-3:55 pm

1 stop13h 20m

$424

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 2/3

3:27 pm-3:40 pm

2 stops18h 13m

Dublin

lun. 2/9

3:30 pm-1:50 pm

1 stop28h 20m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 60 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, January is the cheapest month in which you can book a flight from Illinois to Dublin (average of $354). Flying from Illinois to Dublin in June is currently the most expensive (average of $671). 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 enero 15, 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 enero 15, 2026.

The most flights from USIL to DUB are scheduled on a Wednesday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 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 9h 45m. Fly via British Airways, United Airlines, or Icelandair to get the fastest option. There are 3661 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 ($215), Icelandair ($275), and JetBlue ($288).

  • 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: Aer Lingus (77%), British Airways (72%), American Airlines (70%).

  • What are the cheapest flights from Illinois to Dublin?

    Looking for the cheapest flight from Illinois to Dublin? While on average our users pay $3,488, our data indicates the cheapest price to be $276. The most popular route (Chicago O'Hare Intl - Dublin), is priced around $362.

  • 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 $354). Flying from Illinois to Dublin in June is currently the most expensive (average of $671). 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

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Alternative routes for Illinois to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
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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 enero 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$568FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$344Average$538FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$502FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$470FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$469Average$705FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$473Average$770FlexibilityNo cancel feeOn-time79%
Brussels AirlinesCheapest$487Average$820FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$487Average$840FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$488Average$703FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$498Average$687FlexibilityNo cancel feeOn-time70%

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