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$186+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
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 February 18, 2026.

This FlightHub deal was found by Cheapflights users on 2/16. 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
Fri 4/1712:15 pm
DUB
-
ORD
1 stop15h 10m
Icelandair
Deal found 2/16$440
This FlightHub deal was found by Cheapflights users on 2/16. 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.
Sun 11/17:20 pm
ORD
-
DUB
2 stops33h 25m
Scandinavian Airlines
Sun 11/810:55 am
DUB
-
ORD
2 stops35h 50m
Scandinavian Airlines
Deal found 2/16$441
This FlightHub deal was found by Cheapflights users on 2/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:15 pm
ORD
-
DUB
1 stop34h 35m
Scandinavian Airlines
Wed 9/167:05 pm
DUB
-
ORD
1 stop27h 05m
Scandinavian Airlines
Deal found 2/15$442
This FlightHub deal was found by Cheapflights users on 2/16. 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.
Wed 3/47:20 pm
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sun 3/87:05 pm
DUB
-
ORD
1 stop27h 40m
Scandinavian Airlines
Deal found 2/16$443
This FlightHub deal was found by Cheapflights users on 2/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Wed 5/1312:15 pm
DUB
-
ORD
1 stop12h 00m
Icelandair
Deal found 2/15$444
This Mytrip deal was found by Cheapflights users on 2/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:25 pm
ORD
-
DUB
1 stop30h 40m
Icelandair
Wed 5/1312:15 pm
DUB
-
ORD
1 stop15h 10m
Icelandair
Deal found 2/15$445
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Tue 4/77:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Thu 4/162:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/16$447
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ORD
-
DUB
1 stop9h 40m
Icelandair
Thu 4/162:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/17$448
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Fri 4/1710:25 pm
ORD
-
DUB
1 stop30h 40m
Icelandair
Thu 4/302:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/16$449
This KAYAK deal was found by Cheapflights users on 2/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:30 pm
ORD
-
DUB
1 stop9h 45m
Icelandair
Thu 4/302:15 pm
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 2/15$450
This oojo deal was found by Cheapflights users on 2/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:25 pm
ORD
-
DUB
1 stop11h 50m
Icelandair
Sun 5/1012:15 pm
DUB
-
ORD
1 stop12h 00m
Icelandair
Deal found 2/18$451
This FlightHub deal was found by Cheapflights users on 2/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Tue 4/2112:40 pm
DUB
-
ORD
1 stop33h 30m
Scandinavian Airlines
Deal found 2/17$452

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 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$440
(FlightHub)

One-way from

$186
(Kissandfly.com)

Popular in

June

Cheapest in

January

Average price

$550

Good round-trip deal

$566 or less

Good one-way deal

$373 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 ($17 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 18, 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

DecaturDublin

DEC - DUB

DECDUB

Decatur Arpt

Wed 4/1

9:52 am-9:45 am

1 stop17h 53m

Dublin

Wed 4/8

9:50 am-5:57 pm

2 stops38h 07m

$460

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 4/18

8:15 pm-9:45 am

1 stop31h 30m

Dublin

Tue 5/5

9:50 am-12:06 pm

1 stop32h 16m

$460

BloomingtonDublin

BMI - DUB

BMIDUB

Bloomington-Normal

Mon 8/17

9:44 am-9:45 am

1 stop18h 01m

Dublin

Fri 8/28

9:20 am-12:50 pm

2 stops33h 30m

$464

BloomingtonDublin

BMI - DUB

BMIDUB

Bloomington-Normal

Sun 8/16

1:32 pm-9:45 am

1 stop14h 13m

Dublin

Fri 8/28

9:20 am-12:50 pm

2 stops33h 30m

$464

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Mon 4/27

2:50 pm-9:45 am

1 stop12h 55m

Dublin

Tue 5/5

9:50 am-10:04 am

2 stops30h 14m

$464

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Sun 8/16

8:10 am-9:45 am

1 stop19h 35m

Dublin

Wed 8/26

9:20 am-12:46 pm

2 stops33h 26m

$464

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Wed 8/5

6:00 am-9:45 am

1 stop21h 45m

Dublin

Wed 8/19

9:20 am-12:46 pm

2 stops33h 26m

$464

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Wed 4/1

1:20 pm-9:45 am

1 stop14h 25m

Dublin

Wed 4/8

9:50 am-10:02 am

2 stops30h 12m

$464

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Tue 8/11

5:20 pm-9:45 am

1 stop10h 25m

Dublin

Tue 8/25

9:20 am-12:46 pm

2 stops33h 26m

$464

PeoriaDublin

PIA - DUB

PIADUB

Greater Peoria

Mon 4/27

7:05 pm-6:40 pm

2 stops17h 35m

Dublin

Tue 5/5

8:35 am-11:33 pm

2 stops20h 58m

$475

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

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 $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 18, 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 18, 2026.

The most flights from USIL to DUB are scheduled on a Monday (10 on average). You will have fewer flight options on Thursday, 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 13h 35m. Fly via United Airlines, Air Canada, or British Airways to get the fastest option. There are 3909 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 (78%), Aer Lingus (78%), Iberia (78%).

  • What are the cheapest flights from Illinois to Dublin?

    Looking for the cheapest flight from Illinois to Dublin? While on average our users pay $3,084, our data indicates the cheapest price to be $239. The most popular route (Chicago O'Hare Intl - Dublin), is priced around $418.

  • 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

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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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$568FlexibilityNo cancel feeOn-time62%
TAP AIR PORTUGALCheapest$274Average$514FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$344Average$513FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$470FlexibilityNo cancel feeOn-time77%
IberiaCheapest$424Average$696FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$425Average$660FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$469Average$705FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$472Average$807FlexibilityNo cancel feeOn-time76%
SWISSCheapest$473Average$770FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$476Average$657FlexibilityNo cancel feeOn-time76%

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