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

As of July 2026, 21 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 05m 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.

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

Aer Lingus and Air France are the most popular carriers operating from Ireland to Illinois

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

As of July 2026, there are 149 flights per week flying from Ireland to Illinois. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

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 July 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.

€316 Cheap Flights from Ireland to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ireland to Illinois

Return

One-way

Last minute

Direct

Recent return flight deals from Ireland to Illinois

Enter your travel dates to find the best prices.

06:15 - 14:15

ORK

ORD

14h 00m

1 stop

18:00 - 14:40

ORD

ORK

14h 40m

2 stops

€533Multiple Airlines

Thu, 3 Sep - Mon, 7 Sep

06:15 - 14:15

ORK

ORD

14h 00m

1 stop

17:10 - 14:40

ORD

ORK

15h 30m

1 stop

€533Multiple Airlines

Thu, 3 Sep - Mon, 7 Sep

11:35 - 14:00

DUB

ORD

8h 25mdirect

15:45 - 05:10

ORD

DUB

7h 25mdirect

€542Aer Lingus

Mon, 7 Sep - Mon, 14 Sep

11:35 - 14:00

DUB

ORD

8h 25mdirect

15:45 - 05:10

ORD

DUB

7h 25mdirect

€542Aer Lingus

Fri, 11 Sep - Fri, 18 Sep

09:30 - 11:30

DUB

ORD

8h 00mdirect

22:20 - 11:50

ORD

DUB

7h 30mdirect

€542Finnair

Thu, 27 Aug - Sat, 5 Sep

09:40 - 17:50

DUB

ORD

14h 10m

1 stop

22:20 - 11:50

ORD

DUB

7h 30mdirect

€543Finnair

Thu, 27 Aug - Sat, 5 Sep

09:30 - 11:30

DUB

ORD

8h 00mdirect

16:53 - 09:35

ORD

DUB

10h 42m

1 stop

€553American Airlines

Thu, 27 Aug - Sat, 5 Sep

09:30 - 11:30

DUB

ORD

8h 00mdirect

22:20 - 11:50

ORD

DUB

7h 30mdirect

€553American Airlines

Thu, 27 Aug - Sat, 5 Sep

10:40 - 13:20

DUB

ORD

8h 40mdirect

18:30 - 08:10

ORD

DUB

7h 40mdirect

€631United Airlines

Sun, 1 Nov - Sun, 8 Nov

09:30 - 11:50

SNN

ORD

8h 20mdirect

12:16 - 10:15

ORD

SNN

15h 59m

1 stop

€676United Airlines

Sun, 13 Sep - Sun, 20 Sep

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Iberia flights from Ireland to Illinois

Our best Iberia deals on Ireland to Illinois flight tickets

Iberia

24 Aug

DUB09:50Dublin

34h 35m

1 stop

ORD14:25Chicago O'Hare Intl

31 Aug

ORD22:20Chicago O'Hare Intl

7h 30m

DUB11:50Dublin

€560

Iberia

17 Oct

DUB09:30Dublin

19h 00m

1 stop

ORD22:30Chicago O'Hare Intl

5 Nov

ORD16:53Chicago O'Hare Intl

32h 22m

1 stop

DUB07:15Dublin

€565

Iberia

27 Aug

DUB12:40Dublin

14h 36m

1 stop

ORD21:16Chicago O'Hare Intl

5 Sept

ORD22:20Chicago O'Hare Intl

7h 30m

DUB11:50Dublin

€578

TAP AIR PORTUGAL flights from Ireland to Illinois

Our best TAP AIR PORTUGAL deals on Ireland to Illinois flight tickets

TAP AIR PORTUGAL

19 Dec

DUB04:15Dublin

17h 15m

1 stop

ORD15:30Chicago O'Hare Intl

30 Dec

ORD19:00Chicago O'Hare Intl

22h 20m

1 stop

DUB23:20Dublin

€579

TAP AIR PORTUGAL

26 Dec

DUB16:55Dublin

28h 35m

1 stop

ORD15:30Chicago O'Hare Intl

6 Jan

ORD19:00Chicago O'Hare Intl

22h 20m

1 stop

DUB23:20Dublin

€587

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 3/9

06:15-14:15

1 stop14h 00m

Chicago O'Hare Intl

Mon 7/9

18:00-14:40

2 stops14h 40m

€533

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 3/9

06:15-14:15

1 stop14h 00m

Chicago O'Hare Intl

Mon 7/9

17:10-14:40

1 stop15h 30m

€533

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 7/9

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Mon 14/9

15:45-05:10

Nonstop7h 25m

€542

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 11/9

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Fri 18/9

15:45-05:10

Nonstop7h 25m

€542

Fastest return journey

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 27/8

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sat 5/9

22:20-11:50

Nonstop7h 30m

€542

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 27/8

09:40-17:50

1 stop14h 10m

Chicago O'Hare Intl

Sat 5/9

22:20-11:50

Nonstop7h 30m

€543

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 27/8

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sat 5/9

16:53-09:35

1 stop10h 42m

€553

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 27/8

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sat 5/9

22:20-11:50

Nonstop7h 30m

€553

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 1/11

10:40-13:20

Nonstop8h 40m

Chicago O'Hare Intl

Sun 8/11

18:30-08:10

Nonstop7h 40m

€631

ShannonChicago

SNN - ORD

SNNORD

Shannon

Sun 13/9

09:30-11:50

Nonstop8h 20m

Chicago O'Hare Intl

Sun 20/9

12:16-10:15

1 stop15h 59m

€676

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 €418, 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 September is your next best option. Flight prices from Ireland to Illinois during September average around €534.

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 €646. 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 €801.

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 €616. 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 at midday because they tend to be around €808. 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 €594 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 €504 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?

You could potentially save up to 21% on your flight if you consider stops on a Ireland to Illinois flight.

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	€715
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 €715. 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 July 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 (32.42% of total bookings). The next most popular plane models are Airbus A330-300 (27.85%), Boeing 787 Dreamliner (13.59%), and Airbus A330 (8.32%).

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 €408	Free Cancellation	Rating 7.3 1,682 reviews	Search Aer Lingus flights
Finnair	PriceFrom €412	Free Cancellation	Rating 7.6 1,427 reviews	Search Finnair flights
United Airlines	PriceFrom €415	Free Cancellation	Rating 7.4 10,048 reviews	Search United Airlines flights
American Airlines	PriceFrom €429	Free Cancellation	Rating 7.1 11,839 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.