HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ireland

$261+ Cheap flights from Illinois to Ireland

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Ireland 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 Ireland

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Ireland (IE0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 21, 2025.

Round-trip from

$470
(Delta)

One-way from

$261
(Kiwi.com)

Good round-trip deal

$654 or less

Good one-way deal

$493 or less
From Illinois to Ireland
Search Deals
One-way flight from Illinois to Ireland
Search Deals
Price to beat on a round-trip flight from Illinois to Ireland.
Search Deals
Price to beat on a one-way flight from Illinois to Ireland.
Search Deals

Find flight deals from Illinois to Ireland

Cheapest flights from Illinois to Ireland
Explore the most affordable flight options available from Illinois to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.

This oojo deal was found by Cheapflights users on 1/21. 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.
mar. 4/17:30 pmORD - DUB
1 stop9h 35mIcelandair
mié. 4/1612:15 pmDUB - ORD
1 stop12h 05mIcelandair
Deal found 1/21$472
This Delta deal was found by Cheapflights users on 1/21. 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.
mar. 3/410:57 amMDW - DUB
1 stop16h 48mDelta
mar. 3/1110:45 amDUB - MDW
2 stops16h 38mDelta
Deal found 1/21$475
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/207:15 pmORD - DUB
1 stop17h 00mScandinavian Airlines
mié. 5/77:05 pmDUB - ORD
1 stop27h 05mScandinavian Airlines
Deal found 1/19$478
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/181:26 pmORD - DUB
2 stops13h 59mDelta
mar. 4/112:00 pmDUB - ORD
2 stops14h 44mDelta
Deal found 1/19$479
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/26:45 amORD - DUB
3 stops21h 30mMultiple Airlines
lun. 4/711:35 amDUB - ORD
3 stops32h 13mMultiple Airlines
Deal found 1/19$480
This CrystalTravel deal was found by Cheapflights users on 1/21. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/185:00 pmORD - DUB
1 stop10h 40mBritish Airways
lun. 2/248:30 pmDUB - ORD
1 stop23h 25mBritish Airways
Deal found 1/21$485
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/166:00 pmORD - DUB
1 stop18h 05mTAP AIR PORTUGAL
mar. 4/226:50 pmDUB - ORD
1 stop27h 20mTAP AIR PORTUGAL
Deal found 1/20$491
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/124:25 pmORD - DUB
1 stop18h 15mKLM
mié. 2/2611:30 amDUB - ORD
2 stops15h 16mKLM
Deal found 1/20$492
This Iberia deal was found by Cheapflights users on 1/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/184:45 pmORD - DUB
1 stop11h 30mIberia
lun. 2/2410:55 amDUB - ORD
2 stops36h 47mIberia
Deal found 1/21$493
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/46:26 pmORD - ORK
1 stop20h 34mAmerican Airlines
mar. 3/117:40 amORK - ORD
1 stop13h 05mAmerican Airlines
Deal found 1/20$498
This FlightHub deal was found by Cheapflights users on 1/21. 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.
mié. 1/299:00 pmORD - DUB
Nonstop7h 20mAer Lingus
lun. 2/34:40 pmDUB - ORD
Nonstop8h 35mAer Lingus
Deal found 1/21$501
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.
mar. 2/252:05 pmORD - DUB
1 stop11h 05mAir Canada
mié. 3/59:00 amDUB - ORD
2 stops16h 55mAir Canada
Deal found 1/20$512

Find flights from Illinois to Ireland within your budget

Customize your flight search to find flights from Illinois to Ireland 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 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 3/5

7:10 am-8:25 am

1 stop19h 15m

Dublin

mié. 3/12

12:00 pm-8:58 pm

1 stop13h 58m

$470

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 3/2

11:15 am-9:45 am

1 stop16h 30m

Dublin

mar. 3/11

11:30 am-9:26 pm

2 stops14h 56m

$475

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

mar. 3/4

9:33 am-9:45 am

2 stops18h 12m

Dublin

mié. 3/12

12:00 pm-10:23 pm

1 stop15h 23m

$475

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 2/12

7:15 pm-11:20 pm

1 stop22h 05m

Dublin

mar. 2/18

4:55 pm-3:30 pm

1 stop28h 35m

$478

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 3/9

8:40 pm-6:20 pm

1 stop16h 40m

Dublin

dom. 3/16

12:05 pm-6:50 pm

2 stops35h 45m

$481

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 2/18

5:00 pm-9:40 am

1 stop10h 40m

Dublin

lun. 2/24

8:30 pm-1:55 pm

1 stop23h 25m

$485

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 3/12

5:25 pm-4:40 pm

1 stop18h 15m

Dublin

mar. 3/18

6:00 am-4:05 pm

1 stop15h 05m

$493

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

vie. 1/31

9:00 pm-10:20 am

Nonstop7h 20m

Dublin

mar. 2/4

4:40 pm-7:15 pm

Nonstop8h 35m

$495

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 3/25

1:04 pm-6:10 am

1 stop12h 06m

Dublin

mar. 4/8

11:35 am-1:35 pm

Nonstop8h 00m

$496

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 2/19

4:58 pm-12:40 pm

2 stops13h 42m

Dublin

mié. 2/26

11:30 am-8:46 pm

2 stops15h 16m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Illinois to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland 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.

Travel insights for flights from Illinois to Ireland

Get recent, data-driven insights about flights from Illinois to Ireland including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Ireland?

Currently, November is the cheapest month in which you can book a flight from Illinois to Ireland (average of $509). Flying from Illinois to Ireland in June is currently the most expensive (average of $1,016). 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 IE?

Find hourly flight availability from Illinois to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Ireland as you normally would.

Rainfall in Ireland by month

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

In terms of precipitation, rainfall in Ireland 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 Ireland when rainfall is around 1.9 in.

Temperature in Ireland by month

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

If weather is an important factor for your trip to Ireland, 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 Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated enero 21, 2025.
Read through reviews of airlines operating flights from Illinois to Ireland, such as Air France, KLM and Aer Lingus. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

Austrian Airlines
7.6
Good
786 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

Air France
7.4
Good
1,490 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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 Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Ireland one-way?

    $320 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on TAP AIR PORTUGAL and Aer Lingus, with prices starting from $351 and $369, respectively.

  • Can I find deals for flights from Illinois to Ireland that include hotel bookings?

    Yes. In addition to deals on Illinois to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Ireland.

  • Can I find deals for business class flights from Illinois to Ireland?

    Yes. Cheapflights offers flight deals from Illinois to Ireland 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 Ireland?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Ireland (average of $509). Flying from Illinois to Ireland in June is currently the most expensive (average of $1,016). 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

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 Ireland

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to Istanbul flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Boston to Heathrow flights
John F Kennedy Intl to Orly flights
Newark to Orly flights
Newark to Gatwick flights
Dulles Intl to Heathrow flights
Newark to Athens flights
Los Angeles to Heathrow flights
John F Kennedy Intl to Madrid flights
LaGuardia to Charles de Gaulle flights
John F Kennedy Intl to Lisbon flights
Dulles Intl to Charles de Gaulle flights
Newark to Barcelona-El Prat flights
John F Kennedy Intl to Barcelona-El Prat flights
O'Hare Intl to Charles de Gaulle flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
Boston to Charles de Gaulle flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
Miami to Madrid flights
Newark to Lisbon flights
Seattle to Heathrow flights
Newark to Madrid flights
Newark to London City flights
John F Kennedy Intl to Athens flights
John F Kennedy Intl to Dublin flights
Stewart to Charles de Gaulle flights
San Francisco to Heathrow flights
John F Kennedy Intl to Malpensa flights
Newark to Dublin flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
Newark to Malpensa flights
Dallas/Fort Worth to Heathrow flights
Dallas/Fort Worth to Charles de Gaulle flights
John F Kennedy Intl to Amsterdam flights
Los Angeles to Charles de Gaulle flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Athens flights
Stewart to Stansted flights
Boston to Dublin flights
San Francisco to Charles de Gaulle flights

Top 10 airlines flying from Illinois to Ireland

Discover the top 10 airlines that operate flights from Illinois to Ireland. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$196Average$200FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$304Average$482FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$360Average$587FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$395Average$472FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$448Average$693FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$505Average$994FlexibilityNo cancel feeOn-time70%
IberiaCheapest$507Average$732FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$509Average$945FlexibilityNo cancel feeOn-time71%
KLMCheapest$509Average$842FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$513Average$888FlexibilityNo cancel feeOn-time69%
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.