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$219+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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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 January 20, 2026.

This KAYAK deal was found by Cheapflights users on 1/20. 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.
Tue 4/147:12 am
STL
-
DUB
2 stops19h 48m
British Airways
Wed 4/2212:50 pm
DUB
-
STL
1 stop12h 40m
British Airways
Deal found 1/20$405
This KAYAK deal was found by Cheapflights users on 1/18. 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.
Wed 9/29:35 pm
STL
-
DUB
1 stop12h 10m
British Airways
Tue 9/1512:30 pm
DUB
-
STL
1 stop13h 00m
British Airways
Deal found 1/18$407
This KAYAK deal was found by Cheapflights users on 1/19. 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.
Mon 2/232:19 pm
STL
-
DUB
2 stops13h 56m
British Airways
Tue 3/38:50 am
DUB
-
STL
2 stops18h 22m
British Airways
Deal found 1/19$411
This Ovago deal was found by Cheapflights users on 1/18. 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.
Wed 3/42:59 pm
PIA
-
DUB
2 stops13h 16m
British Airways
Wed 3/1110:00 am
DUB
-
PIA
2 stops18h 25m
British Airways
Deal found 1/18$412
This Ovago deal was found by Cheapflights users on 1/18. 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.
Tue 2/39:33 am
STL
-
DUB
2 stops19h 42m
British Airways
Fri 2/137:35 am
DUB
-
STL
2 stops19h 37m
British Airways
Deal found 1/18$412
This KAYAK deal was found by Cheapflights users on 1/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:18 pm
STL
-
DUB
2 stops13h 02m
British Airways
Wed 8/198:40 am
DUB
-
STL
2 stops20h 23m
British Airways
Deal found 1/17$416
This oojo deal was found by Cheapflights users on 1/19. 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 2/222:19 pm
STL
-
DUB
2 stops13h 56m
British Airways
Mon 3/28:40 pm
DUB
-
STL
2 stops26h 33m
British Airways
Deal found 1/19$417
This oojo deal was found by Cheapflights users on 1/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:05 am
STL
-
DUB
2 stops21h 10m
British Airways
Tue 5/125:30 pm
DUB
-
STL
1 stop32h 00m
British Airways
Deal found 1/17$418
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Wed 9/212:10 pm
STL
-
DUB
1 stop13h 35m
Air Canada
Tue 9/159:20 am
DUB
-
STL
1 stop14h 57m
Air Canada
Deal found 1/20$419
This American Airlines deal was found by Cheapflights users on 1/18. 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 4/19:00 pm
ORD
-
DUB
Nonstop7h 35m
American Airlines
Wed 4/81:20 pm
DUB
-
ORD
1 stop12h 13m
American Airlines
Deal found 1/18$421
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 1/259:02 am
ORD
-
DUB
1 stop16h 28m
United Airlines
Tue 2/310:40 am
DUB
-
ORD
Nonstop8h 50m
United Airlines
Deal found 1/20$422
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
Wed 4/19:00 pm
ORD
-
DUB
Nonstop7h 35m
Iberia
Wed 4/84:45 pm
DUB
-
ORD
Nonstop8h 30m
Iberia
Deal found 1/18$423

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 January 20, 2026.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$405
(KAYAK)

One-way from

$219
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$564

Good round-trip deal

$559 or less

Good one-way deal

$396 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. 14% potential increase in price ($113 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 January 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 January 20, 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

Tue 4/14

7:12 am-9:00 am

2 stops19h 48m

Dublin

Wed 4/22

12:50 pm-7:30 pm

1 stop12h 40m

$405

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Wed 3/4

2:59 pm-10:15 am

2 stops13h 16m

Dublin

Wed 3/11

10:00 am-11:25 pm

2 stops18h 25m

$412

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 4/7

8:15 pm-9:45 am

Nonstop7h 30m

Dublin

Wed 4/15

11:35 am-1:40 pm

Nonstop8h 05m

$424

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 4/7

8:15 pm-9:45 am

Nonstop7h 30m

Dublin

Thu 4/16

11:35 am-1:40 pm

Nonstop8h 05m

$424

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 4/6

8:40 pm-1:30 pm

1 stop10h 50m

Dublin

Mon 4/13

7:00 pm-12:20 pm

1 stop23h 20m

$424

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Wed 3/4

6:55 pm-3:40 pm

2 stops14h 45m

Dublin

Wed 3/11

11:30 am-6:20 pm

1 stop11h 50m

$425

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/14

8:30 am-7:20 am

1 stop16h 50m

Dublin

Wed 4/22

9:50 am-3:24 pm

1 stop11h 34m

$425

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 1/25

3:44 pm-7:30 am

1 stop9h 46m

Dublin

Tue 2/3

9:30 am-4:49 pm

2 stops13h 19m

$427

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 3/22

8:00 am-6:10 am

1 stop17h 10m

Dublin

Tue 3/31

9:50 am-12:17 pm

2 stops32h 27m

$429

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 2/5

6:30 pm-10:15 am

1 stop9h 45m

Dublin

Mon 2/9

11:30 am-5:20 pm

1 stop11h 50m

$430

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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 $670). 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 January 20, 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 January 20, 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 (8 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 7h 30m. Fly via British Airways, United Airlines, or American Airlines 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: 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 $2,968, our data indicates the cheapest price to be $275. The most popular route (Chicago O'Hare Intl - Dublin), is priced around $361.

  • 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 $670). 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$568FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$344Average$532FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$502FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$470FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$435Average$687FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$469Average$705FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
Brussels AirlinesCheapest$487Average$820FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$487Average$795FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$488Average$703FlexibilityNo cancel feeOn-time76%

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