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

The number of flights available between Ireland and Illinois is 19 per day as of September 2025. The most frequent departure time is 11:00AM, with 51% of daily flights leaving at noon.

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

Aer Lingus is the most popular carrier operating from Ireland to Illinois

How long is the flight from Ireland to Illinois?

The flight from Ireland to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Dublin (a popular airport in Ireland) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 8h on average. If you fly from Shannon (another popular airport in Ireland) to Chicago O'Hare Intl Airport, then the average flight time is 8h 15m.

What airlines fly to Illinois?

Aer Lingus, United Airlines and Lufthansa 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 82% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 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 September 2025, 135 flights take off from Ireland and land in Illinois each week. The most common flight departure day for this route is Mon, with 15% of weekly 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 were last updated today.

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

There are 3 operators available for flights from Ireland to Illinois as of September 2025.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$384 Cheap Flights from Ireland to Illinois in 2025/26

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Find the cheapest flights from Ireland to Illinois

Round-trip

One-way

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Direct

Recent round-trip flight deals from Ireland to Illinois

7:05 pm - 9:05 pmDUB-ORD

31h 00m1 stop

7:20 pm - 11:45 amORD-DUB

34h 25m1 stop

$438Scandinavian Airlines

Find Deal

Tue, Oct 28 - Wed, Nov 5

7:05 pm - 5:45 pmDUB-ORD

27h 40m1 stop

7:20 pm - 11:45 amORD-DUB

34h 25m1 stop

$439Scandinavian Airlines

Find Deal

Thu, Oct 30 - Wed, Nov 5

10:45 am - 5:00 pmDUB-ORD

12h 15m1 stop

8:40 pm - 7:40 pmORD-DUB

17h 00m1 stop

$442British Airways

Find Deal

Sun, Nov 2 - Sun, Nov 9

8:45 am - 2:40 pmDUB-ORD

11h 55m1 stop

5:40 pm - 11:55 amORD-DUB

12h 15m1 stop

$445British Airways

Find Deal

Mon, Oct 13 - Tue, Oct 21

5:10 am - 8:05 pmDUB-ORD

20h 55m1 stop

9:50 pm - 5:10 pmORD-DUB

13h 20m1 stop

$449Lufthansa

Find Deal

Wed, Nov 5 - Tue, Nov 11

11:30 am - 2:00 pmDUB-ORD

8h 30mnonstop

7:40 pm - 9:00 amORD-DUB

7h 20mnonstop

$454Aer Lingus

Find Deal

Mon, Nov 3 - Fri, Nov 7

5:10 am - 4:20 pmDUB-ORD

16h 10m1 stop

6:35 pm - 8:10 amORD-DUB

7h 35mnonstop

$455Lufthansa

Find Deal

Sun, Nov 2 - Sun, Nov 9

11:35 am - 2:00 pmDUB-ORD

8h 25mnonstop

9:15 pm - 10:40 amORD-DUB

7h 25mnonstop

$462Aer Lingus

Find Deal

Wed, Oct 15 - Wed, Oct 22

9:20 am - 3:00 pmDUB-ORD

35h 40m1 stop

8:15 pm - 7:10 amORD-DUB

28h 55m1 stop

$463United Airlines

Find Deal

Fri, Oct 24 - Mon, Nov 3

9:20 am - 3:00 pmDUB-ORD

35h 40m1 stop

8:20 pm - 9:45 amORD-DUB

7h 25mnonstop

$466United Airlines

Find Deal

Wed, Oct 8 - Mon, Oct 13

Lufthansa flights from Ireland to Illinois

Our best Lufthansa deals on Ireland to Illinois flight tickets

Lufthansa

Nov 5

DUB5:10 amDublin

20h 55m

1 stop

ORD8:05 pmChicago O'Hare Intl

Nov 11

ORD9:50 pmChicago O'Hare Intl

13h 20m

1 stop

DUB5:10 pmDublin

$449

Find similar

Lufthansa

Nov 2

DUB5:10 amDublin

16h 10m

1 stop

ORD4:20 pmChicago O'Hare Intl

Nov 9

ORD6:35 pmChicago O'Hare Intl

7h 35m

DUB8:10 amDublin

$455

Find similar

Lufthansa

Oct 13

DUB5:55 amDublin

15h 00m

1 stop

ORD2:55 pmChicago O'Hare Intl

Oct 21

ORD8:20 pmChicago O'Hare Intl

7h 25m

DUB9:45 amDublin

$459

Find similar

KLM flights from Ireland to Illinois

Our best KLM deals on Ireland to Illinois flight tickets

KLM

Oct 5

ORK5:10 pmCork

27h 30m

1 stop

ORD2:40 pmChicago O'Hare Intl

Oct 12

ORD5:10 pmChicago O'Hare Intl

15h 30m

1 stop

ORK2:40 pmCork

$476

Find similar

KLM

Sep 25

ORK6:00 amCork

14h 10m

1 stop

ORD2:10 pmChicago O'Hare Intl

Sep 29

ORD5:10 pmChicago O'Hare Intl

15h 30m

1 stop

ORK2:40 pmCork

$477

Find similar

KLM

Feb 22

DUB9:45 amDublin

12h 40m

1 stop

MDW4:25 pmChicago Midway

Mar 4

MDW10:35 amChicago Midway

15h 10m

1 stop

DUB7:45 amDublin

$479

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 10/28

7:05 pm-9:05 pm

1 stop31h 00m

Chicago O'Hare Intl

Wed 11/5

7:20 pm-11:45 am

1 stop34h 25m

$438

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 10/30

7:05 pm-5:45 pm

1 stop27h 40m

Chicago O'Hare Intl

Wed 11/5

7:20 pm-11:45 am

1 stop34h 25m

$439

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 11/2

10:45 am-5:00 pm

1 stop12h 15m

Chicago O'Hare Intl

Sun 11/9

8:40 pm-7:40 pm

1 stop17h 00m

$442

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 10/13

8:45 am-2:40 pm

1 stop11h 55m

Chicago O'Hare Intl

Tue 10/21

5:40 pm-11:55 am

1 stop12h 15m

$445

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 11/5

5:10 am-8:05 pm

1 stop20h 55m

Chicago O'Hare Intl

Tue 11/11

9:50 pm-5:10 pm

1 stop13h 20m

$449

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 11/3

11:30 am-2:00 pm

Nonstop8h 30m

Chicago O'Hare Intl

Fri 11/7

7:40 pm-9:00 am

Nonstop7h 20m

$454

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 11/2

5:10 am-4:20 pm

1 stop16h 10m

Chicago O'Hare Intl

Sun 11/9

6:35 pm-8:10 am

Nonstop7h 35m

$455

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/15

11:35 am-2:00 pm

Nonstop8h 25m

Chicago O'Hare Intl

Wed 10/22

9:15 pm-10:40 am

Nonstop7h 25m

$462

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 10/24

9:20 am-3:00 pm

1 stop35h 40m

Chicago O'Hare Intl

Mon 11/3

8:15 pm-7:10 am

1 stop28h 55m

$463

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/8

9:20 am-3:00 pm

1 stop35h 40m

Chicago O'Hare Intl

Mon 10/13

8:20 pm-9:45 am

Nonstop7h 25m

$466

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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 January. Flight prices, which tend to average around $497, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $509.

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

The cheapest day to depart from Ireland to Illinois is on a Wednesday when prices can be found for as low as $655. Flights from Ireland to Illinois on a Monday will generally be more expensive and average around $818. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Ireland to Illinois during this time can be as low as $722. Flights at noon are often more expensive with an average ticket price of $818.

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 $606 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Ireland for as low as $535 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 10% 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	$574
Fastest flight time	8h 00m
Direct flights	Every day
Airports in Illinois	1 airport

The best one-way flight to Illinois from Ireland in the past 72 hours is $574. The best round-trip flight deal from Ireland to Illinois found on momondo in the last 72 hours is $553.

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

Direct flights go from Ireland to Illinois every day.

There is 1 airport near Illinois: Chicago O'Hare Intl (ORD)

Search flight deals

When did momondo last update prices for flights from Ireland to Illinois?
Prices for flights from Ireland to Illinois were last updated today.
How many operators does momondo search for flights from Ireland to Illinois?
There are 3 operators available for flights from Ireland to Illinois as of September 2025.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to Illinois?
Based on momondo bookings for flights between Ireland and Illinois, the leading plane model is Airbus A330-300, making up 25.21% of the total bookings. Other popular models include Boeing 787 Dreamliner with 23.68%, Boeing 787-8 Dreamliner with 22.76%, and Boeing 767-300 with 9.26%.

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
Lufthansa	PriceFrom $393	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights
Aer Lingus	PriceFrom $463	Free Cancellation	Rating 7.2 1,277 reviews	Search Aer Lingus flights
United Airlines	PriceFrom $473	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Ireland to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Ireland to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Ireland to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities in Illinois

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Cheap flights from Ireland to Illinois from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Illinois departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

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Filter for what you want

Filter for what you want

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Find the cheapest flights from Ireland to Illinois

Recent round-trip flight deals from Ireland to Illinois

Recent one-way flight deals from Ireland to Illinois

Recent last minute flight deals from Ireland to Illinois

Recent direct flight deals from Ireland to Illinois

Lufthansa flights from Ireland to Illinois

Our best Lufthansa deals on Ireland to Illinois flight tickets

KLM flights from Ireland to Illinois

Our best KLM deals on Ireland to Illinois flight tickets

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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

What is the cheapest month to fly to Illinois?

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

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Ireland to Illinois during this time can be as low as $722. Flights at noon are often more expensive with an average ticket price of $818.

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?

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 10% on your flight if you consider stops on a Ireland to Illinois flight.

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

Aer Lingus is the most popular carrier operating from Ireland to Illinois

What airlines fly to Illinois?

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

The number of flights available between Ireland and Illinois is 19 per day as of September 2025. The most frequent departure time is 11:00AM, with 51% of daily flights leaving at noon.

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

As of September 2025, 135 flights take off from Ireland and land in Illinois each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.

How long is the flight from 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

Fastest flight time

Direct flights

Airports in Illinois

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

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

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

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

What is the most popular plane model from Ireland to Illinois?

Best airlines flying from Ireland to Illinois

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

Why use momondo?

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

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

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

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

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo