Dublin

$255+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
Apr 5 — Apr 121
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

Keep the following information in mind while searching for Illinois to Dublin flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$533
(Trip.com)

One-way from

$255
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$625

Good round-trip deal

$706 or less

Good one-way deal

$530 or less
Provider with most accurate pricing for Chicago (CHI)-Dublin flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-Dublin flights.
From Illinois to Dublin
One-way flight from Illinois to Dublin
Highest demand for flights based on searches. 22% potential increase in price ($197 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from Illinois to Dublin.
Price to beat on a one-way flight from Illinois to Dublin.

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 March 31, 2025.

This oojo deal was found by Cheapflights users on 3/30. 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 8/157:15 pmORD - DUB
1 stop32h 10mScandinavian Airlines
Sun 8/247:15 pmDUB - ORD
2 stops26h 55mScandinavian Airlines
Deal found 3/30$520
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:45 pmORD - DUB
1 stop11h 30mIberia
Thu 11/1311:30 amDUB - ORD
1 stop14h 35mIberia
Deal found 3/31$556
This Icelandair deal was found by Cheapflights users on 3/31. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:30 pmORD - DUB
1 stop9h 45mIcelandair
Sat 11/2211:30 amDUB - ORD
1 stop11h 50mIcelandair
Deal found 3/31$567
This oojo deal was found by Cheapflights users on 3/30. 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 9/266:00 pmORD - DUB
1 stop24h 05mTAP AIR PORTUGAL
Fri 10/35:30 amDUB - ORD
1 stop17h 00mTAP AIR PORTUGAL
Deal found 3/30$570
This Mytrip deal was found by Cheapflights users on 3/30. 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 4/287:47 pmORD - DUB
3 stops32h 28mMultiple Airlines
Wed 5/711:35 amDUB - ORD
2 stops27h 49mMultiple Airlines
Deal found 3/30$574
This JetBlue deal was found by Cheapflights users on 3/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/18:50 amORD - DUB
1 stop17h 30mJetBlue
Fri 5/910:40 amDUB - ORD
1 stop13h 56mJetBlue
Deal found 3/31$575
This United deal was found by Cheapflights users on 3/30. 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.
Wed 10/2912:00 pmORD - DUB
2 stops17h 05mUnited Airlines
Thu 11/69:00 amDUB - ORD
1 stop12h 52mUnited Airlines
Deal found 3/30$576
This Delta deal was found by Cheapflights users on 3/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:00 amORD - DUB
1 stop19h 45mDelta
Thu 11/135:55 amDUB - ORD
2 stops20h 56mDelta
Deal found 3/31$583
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/223:40 pmMDW - DUB
1 stop11h 05mKLM
Sat 11/19:45 amDUB - MDW
1 stop13h 18mKLM
Deal found 3/30$591
This oojo deal was found by Cheapflights users on 3/31. 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.
Wed 9/2411:45 pmORD - DUB
1 stop27h 50mTurkish Airlines
Tue 9/3010:35 amDUB - ORD
1 stop29h 05mTurkish Airlines
Deal found 3/31$592
This Delta deal was found by Cheapflights users on 3/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:00 pmMDW - DUB
2 stops13h 45mDelta
Mon 11/249:45 amDUB - MDW
1 stop14h 13mDelta
Deal found 3/31$595
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:00 pmORD - DUB
1 stop10h 15mAir Canada
Sun 11/29:00 amDUB - ORD
2 stops31h 39mAir Canada
Deal found 3/30$597

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 March 31, 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

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 5/4

7:15 pm-6:15 pm

1 stop17h 00m

Dublin

Wed 5/14

7:05 pm-4:10 pm

1 stop27h 05m

$533

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 5/7

5:05 am-10:15 am

3 stops23h 10m

Dublin

Sun 5/11

11:35 am-4:25 pm

3 stops34h 50m

$556

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 5/5

6:20 am-8:20 am

1 stop20h 00m

Dublin

Wed 5/14

10:40 am-6:36 pm

1 stop13h 56m

$570

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 5/5

11:25 am-12:35 pm

1 stop19h 10m

Dublin

Mon 5/12

4:55 pm-9:40 am

1 stop22h 45m

$653

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 5/11

5:30 pm-10:00 am

3 stops34h 30m

Dublin

Tue 5/20

11:30 am-4:44 pm

3 stops35h 14m

$697

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 5/4

9:15 pm-10:40 am

Nonstop7h 25m

Dublin

Wed 5/14

11:35 am-2:00 pm

Nonstop8h 25m

$699

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Sun 5/4

1:16 pm-7:45 am

1 stop12h 29m

Dublin

Wed 5/14

10:00 am-5:45 pm

1 stop13h 45m

$710

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 5/5

8:15 pm-9:45 am

Nonstop7h 30m

Dublin

Wed 5/14

9:20 am-5:46 am

1 stop26h 26m

$711

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Tue 6/3

9:40 am-9:00 am

2 stops17h 20m

Dublin

Fri 6/13

11:30 am-8:45 am

1 stop27h 15m

$716

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 5/12

10:40 am-8:15 am

2 stops15h 35m

Dublin

Thu 5/22

9:50 am-6:53 pm

2 stops15h 03m

$724

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 60 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, 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 $1,010). 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 March 31, 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 March 31, 2025.

The most flights from USIL to DUB are scheduled on a Monday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dublin ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Dublin when rainfall is around 1.9 in.

Temperature in Dublin by month

Plan your trip to Dublin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated March 31, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Illinois to Dublin have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 ($338), Scandinavian Airlines ($374), and Icelandair ($384).

  • What are the most popular routes 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%), British Airways (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 $2,151, our data indicates the cheapest price to be $476. 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, 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 $1,010). 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 Illinois?

Book flights to Illinois if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
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.

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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$196Average$200FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$341Average$489FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$355Average$559FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$394Average$474FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$445Average$704FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$482Average$769FlexibilityNo cancel feeOn-time75%
IberiaCheapest$509Average$733FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$513Average$914FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$519Average$670FlexibilityNo cancel feeOn-time70%
FinnairCheapest$526Average$799FlexibilityNo cancel feeOn-time76%
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.