How many flights depart from Ireland to Illinois on average per day?

As of August 2026, 20 flights take off from Ireland and land in Illinois each day. The most common flight departure time for this route is 11:00, with 81% of daily flights taking off at midday.

How long is the flight from Ireland to Illinois?

If you’re flying from a popular airport in Ireland, such as Dublin or Shannon, and flying into Illinois, then you can expect flight times to average 8h and 8h 20m, respectively.

Which airlines fly to Illinois?

Aer Lingus, United Airlines and Finnair are the top three most popular airlines that fly to Illinois from Ireland according to our data. Aer Lingus is the first choice among our users, with 64% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Ireland to Illinois on average per week?

As of August 2026, there are 145 flights per week flying from Ireland to Illinois. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.

What is the cheapest airline that flies from Ireland to Illinois?

WestJet, TAP AIR PORTUGAL, and Aer Lingus are the most popular carriers operating from Ireland to Illinois

When did momondo last update prices for flights from Ireland to Illinois?

Prices for flights from Ireland to Illinois are updated daily.

How many operators does momondo search for flights from Ireland to Illinois?

As of August 2026, there are 4 operators available to choose from for flights from Ireland to Illinois.

How old do you have to be to fly from Ireland to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

€317 Cheap Flights from Ireland to Illinois in 2026

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Find the cheapest flights from Ireland to Illinois

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One-way

Last minute

Direct

Recent return flight deals from Ireland to Illinois

Enter your travel dates to find the best prices.

06:15 - 14:15ORK Cork-ORD Chicago O'Hare Intl

14h 00m1 stop Amsterdam Schiphol

15:20 - 14:40ORD Chicago O'Hare Intl-ORK Cork

17h 20m2 stops Boston Logan Intl Paris Charles de Gaulle

€478Delta

Thu, 3 Sep - Mon, 7 Sep

06:15 - 14:15ORK Cork-ORD Chicago O'Hare Intl

14h 00m1 stop Amsterdam Schiphol

15:20 - 14:40ORD Chicago O'Hare Intl-ORK Cork

17h 20m2 stops Boston Logan Intl Paris Charles de Gaulle

€479Delta

Thu, 3 Sep - Mon, 7 Sep

16:45 - 19:15DUB Dublin-ORD Chicago O'Hare Intl

8h 30mdirect

17:10 - 10:15ORD Chicago O'Hare Intl-DUB Dublin

11h 05m1 stop London Heathrow

€529Aer Lingus

Fri, 23 Oct - Wed, 20 Jan

11:35 - 14:00DUB Dublin-ORD Chicago O'Hare Intl

8h 25mdirect

21:15 - 16:35ORD Chicago O'Hare Intl-DUB Dublin

13h 20m1 stop London Heathrow

€529Aer Lingus

Fri, 25 Sep - Fri, 2 Oct

11:45 - 17:42DUB Dublin-ORD Chicago O'Hare Intl

11h 57m1 stop Charlotte Douglas

09:45 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

17h 50m2 stops Harrisburg Charlotte Douglas

€558American Airlines

Fri, 28 Aug - Mon, 31 Aug

11:45 - 17:42DUB Dublin-ORD Chicago O'Hare Intl

11h 57m1 stop Charlotte Douglas

09:45 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

17h 50m2 stops Harrisburg Charlotte Douglas

€558American Airlines

Thu, 27 Aug - Mon, 31 Aug

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

22:20 - 11:50ORD Chicago O'Hare Intl-DUB Dublin

7h 30mdirect

€626Finnair

Thu, 27 Aug - Tue, 1 Sep

10:40 - 13:20DUB Dublin-ORD Chicago O'Hare Intl

8h 40mdirect

18:30 - 08:10ORD Chicago O'Hare Intl-DUB Dublin

7h 40mdirect

€632United Airlines

Wed, 2 Dec - Sun, 6 Dec

10:40 - 13:20DUB Dublin-ORD Chicago O'Hare Intl

8h 40mdirect

18:07 - 10:20ORD Chicago O'Hare Intl-DUB Dublin

10h 13m1 stop Washington, D.C. Dulles Intl

€632United Airlines

Mon, 9 Nov - Sat, 21 Nov

09:30 - 19:39DUB Dublin-ORD Chicago O'Hare Intl

16h 09m1 stop Philadelphia

21:01 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

30h 34m1 stop Charlotte Douglas

€655Finnair

Tue, 29 Sep - Sat, 3 Oct

Recent last minute flight deals from Ireland to Illinois

Enter your travel dates to find the best prices.

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

22:20 - 11:50ORD Chicago O'Hare Intl-DUB Dublin

7h 30mdirect

€596Finnair

Wed, 19 Aug - Tue, 25 Aug

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

22:20 - 11:50ORD Chicago O'Hare Intl-DUB Dublin

7h 30mdirect

€597Finnair

Thu, 20 Aug - Tue, 25 Aug

14:15 - 21:25DUB Dublin-ORD Chicago O'Hare Intl

13h 10m1 stop Reykjavik Keflavik Intl

19:25 - 11:05ORD Chicago O'Hare Intl-DUB Dublin

9h 40m1 stop Reykjavik Keflavik Intl

€606Icelandair

Tue, 18 Aug - Sat, 22 Aug

11:45 - 21:57DUB Dublin-ORD Chicago O'Hare Intl

16h 12m1 stop Charlotte Douglas

20:53 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

30h 42m1 stop Charlotte Douglas

€619Multiple Airlines

Thu, 20 Aug - Sun, 23 Aug

16:45 - 19:15DUB Dublin-ORD Chicago O'Hare Intl

8h 30mdirect

15:45 - 05:10ORD Chicago O'Hare Intl-DUB Dublin

7h 25mdirect

€624Aer Lingus

Thu, 20 Aug - Thu, 27 Aug

11:45 - 17:42DUB Dublin-ORD Chicago O'Hare Intl

11h 57m1 stop Charlotte Douglas

16:53 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

10h 42m1 stop Charlotte Douglas

€630American Airlines

Thu, 20 Aug - Mon, 24 Aug

09:50 - 14:44DUB Dublin-ORD Chicago O'Hare Intl

10h 54m1 stop Montreal Pierre Elliott Trudeau Intl

11:15 - 07:30ORD Chicago O'Hare Intl-DUB Dublin

14h 15m2 stops Washington, D.C. Reagan-National Newark

€758United Airlines

Thu, 20 Aug - Tue, 25 Aug

09:50 - 14:44DUB Dublin-ORD Chicago O'Hare Intl

10h 54m1 stop Montreal Pierre Elliott Trudeau Intl

14:31 - 10:40ORD Chicago O'Hare Intl-DUB Dublin

14h 09m2 stops Newark Washington, D.C. Dulles Intl

€758United Airlines

Thu, 20 Aug - Mon, 24 Aug

16:45 - 19:15DUB Dublin-ORD Chicago O'Hare Intl

8h 30mdirect

20:10 - 09:30ORD Chicago O'Hare Intl-DUB Dublin

7h 20mdirect

€763Aer Lingus

Tue, 18 Aug - Mon, 21 Dec

11:45 - 17:42DUB Dublin-ORD Chicago O'Hare Intl

11h 57m1 stop Charlotte Douglas

18:50 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

32h 45m1 stop Charlotte Douglas

€772American Airlines

Tue, 18 Aug - Sat, 22 Aug

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Scandinavian Airlines flights from Ireland to Illinois

Our best Scandinavian Airlines deals on Ireland to Illinois flight tickets

Scandinavian Airlines

2 Nov

DUB12:35Dublin

34h 10m

2 stops

ORD16:45Chicago O'Hare Intl

7 Nov

ORD19:15Chicago O'Hare Intl

33h 30m

2 stops

DUB10:45Dublin

€532

Scandinavian Airlines

2 Nov

DUB12:35Dublin

34h 10m

2 stops

ORD16:45Chicago O'Hare Intl

7 Nov

ORD19:15Chicago O'Hare Intl

33h 30m

2 stops

DUB10:45Dublin

€533

Scandinavian Airlines

2 Nov

DUB12:30Dublin

34h 15m

1 stop

ORD16:45Chicago O'Hare Intl

7 Nov

ORD19:15Chicago O'Hare Intl

34h 30m

1 stop

DUB11:45Dublin

€536

Lufthansa flights from Ireland to Illinois

Our best Lufthansa deals on Ireland to Illinois flight tickets

Lufthansa

27 Aug

DUB06:00Dublin

19h 55m

1 stop

ORD19:55Chicago O'Hare Intl

5 Sept

ORD20:20Chicago O'Hare Intl

7h 25m

DUB09:45Dublin

€670

Lufthansa

27 Aug

DUB06:00Dublin

19h 55m

1 stop

ORD19:55Chicago O'Hare Intl

5 Sept

ORD20:20Chicago O'Hare Intl

7h 25m

DUB09:45Dublin

€670

Lufthansa

27 Aug

SNN09:30Shannon

8h 20m

ORD11:50Chicago O'Hare Intl

31 Aug

ORD18:05Chicago O'Hare Intl

7h 25m

SNN07:30Shannon

€677

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkChicago

ORK Cork - ORD Chicago O'Hare Intl

ORKORD

Cork

Thu 3/9

06:15-14:15

1 stop14h 00m

Chicago O'Hare Intl

Mon 7/9

15:20-14:40

2 stops17h 20m

€478

CorkChicago

ORK Cork - ORD Chicago O'Hare Intl

ORKORD

Cork

Thu 3/9

06:15-14:15

1 stop14h 00m

Chicago O'Hare Intl

Mon 7/9

15:20-14:40

2 stops17h 20m

€479

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Fri 23/10

16:45-19:15

Nonstop8h 30m

Chicago O'Hare Intl

Wed 20/1

17:10-10:15

1 stop11h 05m

€529

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Fri 25/9

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Fri 2/10

21:15-16:35

1 stop13h 20m

€529

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Fri 28/8

11:45-17:42

1 stop11h 57m

Chicago O'Hare Intl

Mon 31/8

09:45-09:35

2 stops17h 50m

€558

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 27/8

11:45-17:42

1 stop11h 57m

Chicago O'Hare Intl

Mon 31/8

09:45-09:35

2 stops17h 50m

€558

Fastest return journey

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 27/8

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Tue 1/9

22:20-11:50

Nonstop7h 30m

€626

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 2/12

10:40-13:20

Nonstop8h 40m

Chicago O'Hare Intl

Sun 6/12

18:30-08:10

Nonstop7h 40m

€632

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Mon 9/11

10:40-13:20

Nonstop8h 40m

Chicago O'Hare Intl

Sat 21/11

18:07-10:20

1 stop10h 13m

€632

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Tue 29/9

09:30-19:39

1 stop16h 09m

Chicago O'Hare Intl

Sat 3/10

21:01-09:35

1 stop30h 34m

€655

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ireland to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Ireland is in November. Flight prices, which tend to average around €412, are often lower during this time because this is during the off-season. If you’re not able to fly to Illinois in November, then December is your next best option. Flight prices from Ireland to Illinois during December average around €531.

What is the cheapest day to depart on your flight to Illinois?

According to our data, Thursday is the cheapest day to fly to Illinois from Ireland. The lowest ticket price found for a Thursday departure recently was €638. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €780.

What is the cheapest time of day to depart on your flight to Illinois?

According to our data, the cheapest time of day to fly to Illinois is in the afternoon. momondo users have found flights departing from Ireland to Illinois in the afternoon for as low as €607. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around €706. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Ireland to Illinois flight route?

Fly from Dublin to Chicago O'Hare Intl for the best Ireland - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around €589 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Ireland for as low as €497 on momondo.

What cabin class options are available on Ireland to Illinois flights?

There are 3 cabin classes available to choose from on Ireland to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Illinois flights?

No. A direct flight is the cheapest option for a flight between Ireland to Illinois.

Cheap Ireland to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Illinois

Best price found	€578
Fastest flight time	8h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Ireland in the past 72 hours is €578. The best return flight deal from Ireland to Illinois found on momondo in the last 72 hours is €694.

The fastest flight from Ireland to Illinois takes 8h 00m

Direct flights go from Ireland to Illinois every day.

There are 98 airports in Illinois. From Ireland there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Ireland to Illinois

When did momondo last update prices for flights from Ireland to Illinois?
Prices for flights from Ireland to Illinois are updated daily.
How many operators does momondo search for flights from Ireland to Illinois?
As of August 2026, there are 4 operators available to choose from for flights from Ireland to Illinois.
How old do you have to be to fly from Ireland to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ireland to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ireland to Illinois is Boeing 787-8 Dreamliner (32.93% of total bookings). The next most popular plane models are Airbus A330-300 (27.73%), Boeing 787 Dreamliner (13.90%), and Airbus A330 (8.55%).

Best airlines flying from Ireland to Illinois

Compare and see reviews for airlines that fly from Ireland to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom €402	Free Cancellation	Rating 7.3 1,701 reviews	Search Aer Lingus flights
Finnair	PriceFrom €406	Free Cancellation	Rating 7.6 1,426 reviews	Search Finnair flights
United Airlines	PriceFrom €409	Free Cancellation	Rating 7.4 10,109 reviews	Search United Airlines flights
American Airlines	PriceFrom €422	Free Cancellation	Rating 7.1 11,929 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Illinois?

It is quick and easy to find Ireland to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Ireland to Illinois with flexible booking policies on momondo?

Flights from Ireland to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ireland to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Ireland.

I’m not ready to book a flight from Ireland to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ireland to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.