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

As of August 2025, 129 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 many flights depart from Ireland to Illinois on average per day?

The number of flights available between Ireland and Illinois is 18 per day as of August 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?

TAP AIR PORTUGAL 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.

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 2 operators available for flights from Ireland to Illinois as of August 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.

$303 Cheap Flights from Ireland to Illinois in 2025

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Find the cheapest flights from Ireland to Illinois

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One-way

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Recent round-trip flight deals from Ireland to Illinois

12:15 pm - 9:15 pmDUB-ORD

15h 00m1 stop

7:25 pm - 1:15 pmORD-DUB

11h 50m1 stop

$371Icelandair

Find Deal

Wed, Sep 10 - Wed, Oct 1

12:30 pm - 4:45 pmDUB-ORD

34h 15m1 stop

7:20 pm - 6:20 pmORD-DUB

17h 00m1 stop

$374Scandinavian Airlines

Find Deal

Thu, Jan 15 - Thu, Jan 22

10:00 am - 6:37 pmDUB-MDW

14h 37m1 stop

6:17 pm - 10:00 amMDW-DUB

9h 43m1 stop

$439KLM

Find Deal

Mon, Sep 1 - Sun, Sep 7

3:20 pm - 11:55 amDUB-ORD

26h 35m1 stop

8:40 pm - 7:35 pmORD-DUB

16h 55m1 stop

$444

Find Deal

Mon, Sep 1 - Sun, Sep 7

1:45 pm - 3:45 pmDUB-ORD

8h 00mnonstop

10:35 pm - 7:35 pmORD-DUB

15h 00m1 stop

$448

Find Deal

Fri, Sep 5 - Sun, Sep 14

4:40 pm - 7:00 pmDUB-ORD

8h 20mnonstop

3:45 pm - 5:10 amORD-DUB

7h 25mnonstop

$450Aer Lingus

Find Deal

Tue, Sep 16 - Tue, Sep 23

4:40 pm - 7:00 pmDUB-ORD

8h 20mnonstop

3:45 pm - 5:10 amORD-DUB

7h 25mnonstop

$451Aer Lingus

Find Deal

Thu, Sep 4 - Sun, Sep 7

5:55 am - 6:37 pmDUB-MDW

18h 42m2 stops

6:00 am - 8:45 amMDW-DUB

20h 45m1 stop

$460KLM

Find Deal

Mon, Sep 1 - Sun, Sep 7

9:30 am - 11:45 amSNN-ORD

8h 15mnonstop

6:00 pm - 7:30 amORD-SNN

7h 30mnonstop

$706United Airlines

Find Deal

Mon, Sep 15 - Mon, Sep 22

9:30 am - 11:45 amSNN-ORD

8h 15mnonstop

6:05 pm - 7:30 amORD-SNN

7h 25mnonstop

$708United Airlines

Find Deal

Mon, Aug 25 - Sun, Aug 31

Scandinavian Airlines flights from Ireland to Illinois

Our best Scandinavian Airlines deals on Ireland to Illinois flight tickets

Scandinavian Airlines

Jan 15

DUB12:30 pmDublin

34h 15m

1 stop

ORD4:45 pmChicago O'Hare Intl

Jan 22

ORD7:20 pmChicago O'Hare Intl

17h 00m

1 stop

DUB6:20 pmDublin

$374

Find similar

Scandinavian Airlines

Jan 15

DUB12:30 pmDublin

34h 15m

1 stop

ORD4:45 pmChicago O'Hare Intl

Jan 22

ORD7:20 pmChicago O'Hare Intl

56h 50m

2 stops

DUB10:10 amDublin

$383

Find similar

Scandinavian Airlines

Oct 30

DUB7:05 pmDublin

27h 40m

1 stop

ORD5:45 pmChicago O'Hare Intl

Nov 3

ORD7:20 pmChicago O'Hare Intl

34h 25m

1 stop

DUB11:45 amDublin

$399

Find similar

British Airways flights from Ireland to Illinois

Our best British Airways deals on Ireland to Illinois flight tickets

British Airways

Oct 29

DUB10:20 amDublin

14h 25m

1 stop

ORD7:45 pmChicago O'Hare Intl

Nov 4

ORD5:10 pmChicago O'Hare Intl

10h 25m

1 stop

DUB9:35 amDublin

$445

Find similar

British Airways

Sep 1

DUB3:20 pmDublin

26h 35m

1 stop

ORD11:55 amChicago O'Hare Intl

Sep 9

ORD8:40 pmChicago O'Hare Intl

12h 05m

1 stop

DUB2:45 pmDublin

$447

Find similar

British Airways

Sep 16

SNN7:40 amShannon

15h 20m

1 stop

ORD5:00 pmChicago O'Hare Intl

Sep 23

ORD5:40 pmChicago O'Hare Intl

16h 30m

1 stop

SNN4:10 pmShannon

$590

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 9/10

12:15 pm-9:15 pm

1 stop15h 00m

Chicago O'Hare Intl

Wed 10/1

7:25 pm-1:15 pm

1 stop11h 50m

$371

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 1/15

12:30 pm-4:45 pm

1 stop34h 15m

Chicago O'Hare Intl

Thu 1/22

7:20 pm-6:20 pm

1 stop17h 00m

$374

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 9/1

10:00 am-6:37 pm

1 stop14h 37m

Chicago Midway

Sun 9/7

6:17 pm-10:00 am

1 stop9h 43m

$439

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 9/1

3:20 pm-11:55 am

1 stop26h 35m

Chicago O'Hare Intl

Sun 9/7

8:40 pm-7:35 pm

1 stop16h 55m

$444

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 9/5

1:45 pm-3:45 pm

Nonstop8h 00m

Chicago O'Hare Intl

Sun 9/14

10:35 pm-7:35 pm

1 stop15h 00m

$448

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/16

4:40 pm-7:00 pm

Nonstop8h 20m

Chicago O'Hare Intl

Tue 9/23

3:45 pm-5:10 am

Nonstop7h 25m

$450

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 9/4

4:40 pm-7:00 pm

Nonstop8h 20m

Chicago O'Hare Intl

Sun 9/7

3:45 pm-5:10 am

Nonstop7h 25m

$451

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 9/1

5:55 am-6:37 pm

2 stops18h 42m

Chicago Midway

Sun 9/7

6:00 am-8:45 am

1 stop20h 45m

$460

ShannonChicago

SNN - ORD

SNNORD

Shannon

Mon 9/15

9:30 am-11:45 am

Nonstop8h 15m

Chicago O'Hare Intl

Mon 9/22

6:00 pm-7:30 am

Nonstop7h 30m

$706

ShannonChicago

SNN - ORD

SNNORD

Shannon

Mon 8/25

9:30 am-11:45 am

Nonstop8h 15m

Chicago O'Hare Intl

Sun 8/31

6:05 pm-7:30 am

Nonstop7h 25m

$708

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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 November. Flight prices, which tend to average around $506, 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 November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $515.

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 $656. Flights from Ireland to Illinois on a Thursday will generally be more expensive and average around $832. 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 morning. Flights from Ireland to Illinois during this time can be as low as $743. Flights at noon are often more expensive with an average ticket price of $817.

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 $600 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 $516 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.

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	$303
Fastest flight time	8h 00m
Direct flights	Every day
Airports in Illinois	3 airports

The best one-way flight to Illinois from Ireland in the past 72 hours is $303. The best round-trip flight deal from Ireland to Illinois found on momondo in the last 72 hours is $371.

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

Direct flights go from Ireland to Illinois every day.

There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

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 2 operators available for flights from Ireland to Illinois as of August 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 Boeing 787-8 Dreamliner, making up 28.15% of the total bookings. Other popular models include Boeing 787 Dreamliner with 27.45%, Airbus A330-300 with 20.81%, and Airbus A330 with 8.46%.

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 $447	Free Cancellation	Rating 7.1 1,193 reviews		Search Aer Lingus flights
United Airlines	PriceFrom $667	Free Cancellation	Rating 7.4 8,905 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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Cheap flights from Ireland to Illinois from $303

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 10/28. 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

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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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

Scandinavian Airlines flights from Ireland to Illinois

Our best Scandinavian Airlines deals on Ireland to Illinois flight tickets

British Airways flights from Ireland to Illinois

Our best British Airways 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 morning. Flights from Ireland to Illinois during this time can be as low as $743. Flights at noon are often more expensive with an average ticket price of $817.

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.

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

TAP AIR PORTUGAL is the most popular carrier operating from Ireland to Illinois

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

The number of flights available between Ireland and Illinois is 18 per day as of August 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 August 2025, 129 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