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

The number of flights available between Illinois and Ireland is 132 per week as of September 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

TAP AIR PORTUGAL and JetBlue are the most popular carriers operating from Illinois to Ireland

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

18 flights are operational daily from Illinois to Ireland as of September 2025. The most popular departure time for this route is 20:00, with 81% of flights per day taking off in the evening.

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

Prices for flights from Illinois to Ireland are updated daily.

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

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

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

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 Illinois to Ireland.

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

The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

€173 Cheap Flights from Illinois to Ireland in 2025/26

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Find the cheapest flights from Illinois to Ireland

Round-trip

One-way

Last minute

Direct

Cheap return flights

17:20 - 15:00ORD-ORK

15h 40m1 stop

17:15 - 14:20ORK-ORD

27h 05m1 stop

€409Delta

Find Deal

Sun, 16 Nov - Tue, 2 Dec

17:20 - 15:00ORD-ORK

15h 40m1 stop

17:15 - 17:46ORK-ORD

30h 31m2 stops

€413Delta

Find Deal

Sun, 16 Nov - Tue, 2 Dec

18:43 - 06:10STL-DUB

30h 27m2 stops

09:00 - 15:46DUB-STL

36h 46m2 stops

€423Air Canada

Find Deal

Mon, 27 Oct - Wed, 12 Nov

18:43 - 06:10STL-DUB

30h 27m2 stops

09:00 - 15:29DUB-STL

12h 29m1 stop

€424Air Canada

Find Deal

Mon, 27 Oct - Wed, 12 Nov

06:00 - 07:45MDW-DUB

20h 45m1 stop

09:45 - 16:15DUB-MDW

12h 30m1 stop

€425Multiple Airlines

Find Deal

Mon, 27 Oct - Wed, 5 Nov

18:28 - 16:25ORD-DUB

16h 57m2 stops

05:10 - 14:55DUB-ORD

15h 45m2 stops

€425Multiple Airlines

Find Deal

Mon, 27 Oct - Wed, 5 Nov

20:20 - 18:20ORD-DUB

17h 00m1 stop

19:00 - 16:10DUB-ORD

50h 10m2 stops

€426Scandinavian Airlines

Find Deal

Thu, 19 Mar - Sat, 28 Mar

13:00 - 08:10STL-DUB

13h 10m1 stop

09:00 - 16:28DUB-STL

37h 28m2 stops

€427United Airlines

Find Deal

Wed, 3 Dec - Wed, 10 Dec

20:20 - 18:10ORD-DUB

16h 50m2 stops

19:00 - 16:10DUB-ORD

50h 10m2 stops

€428Scandinavian Airlines

Find Deal

Thu, 19 Mar - Sat, 28 Mar

06:00 - 10:20ORD-DUB

23h 20m1 stop

09:00 - 09:13DUB-ORD

30h 13m1 stop

€429United Airlines

Find Deal

Mon, 27 Oct - Sun, 9 Nov

Aer Lingus flights from Illinois to Ireland

Our best Aer Lingus deals on Illinois to Ireland flight tickets

Aer Lingus

7 Nov

ORD19:40Chicago O'Hare Intl

7h 20m

DUB09:00Dublin

14 Nov

DUB15:20Dublin

8h 35m

ORD17:55Chicago O'Hare Intl

€431

Find similar

Aer Lingus

16 Nov

ORD19:40Chicago O'Hare Intl

7h 20m

DUB09:00Dublin

22 Nov

DUB11:30Dublin

8h 30m

ORD14:00Chicago O'Hare Intl

€434

Find similar

Aer Lingus

23 Nov

ORD15:50Chicago O'Hare Intl

7h 20m

DUB05:10Dublin

2 Dec

DUB11:30Dublin

8h 30m

ORD14:00Chicago O'Hare Intl

€446

Find similar

Delta flights from Illinois to Ireland

Our best Delta deals on Illinois to Ireland flight tickets

Delta

16 Nov

ORD17:20Chicago O'Hare Intl

15h 40m

1 stop

ORK15:00Cork

2 Dec

ORK17:15Cork

27h 05m

1 stop

ORD14:20Chicago O'Hare Intl

€409

Find similar

Delta

16 Nov

ORD17:20Chicago O'Hare Intl

15h 40m

1 stop

ORK15:00Cork

2 Dec

ORK17:15Cork

30h 31m

2 stops

ORD17:46Chicago O'Hare Intl

€413

Find similar

Delta

5 Jan

MDW13:00Chicago Midway

17h 40m

2 stops

DUB12:40Dublin

14 Jan

DUB05:55Dublin

18h 13m

2 stops

MDW18:08Chicago Midway

€427

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Sun 16/11

17:20-15:00

1 stop15h 40m

Cork

Tue 2/12

17:15-14:20

1 stop27h 05m

€409

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Sun 16/11

17:20-15:00

1 stop15h 40m

Cork

Tue 2/12

17:15-17:46

2 stops30h 31m

€413

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 27/10

18:43-06:10

2 stops30h 27m

Dublin

Wed 12/11

09:00-15:46

2 stops36h 46m

€423

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 27/10

18:43-06:10

2 stops30h 27m

Dublin

Wed 12/11

09:00-15:29

1 stop12h 29m

€424

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Mon 27/10

06:00-07:45

1 stop20h 45m

Dublin

Wed 5/11

09:45-16:15

1 stop12h 30m

€425

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 27/10

18:28-16:25

2 stops16h 57m

Dublin

Wed 5/11

05:10-14:55

2 stops15h 45m

€425

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 19/3

20:20-18:20

1 stop17h 00m

Dublin

Sat 28/3

19:00-16:10

2 stops50h 10m

€426

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 3/12

13:00-08:10

1 stop13h 10m

Dublin

Wed 10/12

09:00-16:28

2 stops37h 28m

€427

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 19/3

20:20-18:10

2 stops16h 50m

Dublin

Sat 28/3

19:00-16:10

2 stops50h 10m

€428

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 27/10

06:00-10:20

1 stop23h 20m

Dublin

Sun 9/11

09:00-09:13

1 stop30h 13m

€429

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 Illinois to Ireland

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 Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Illinois averaging around €474.

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

The cheapest day to depart on your flight to Ireland is on a Thursday when prices can be found for as low as €549. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around €884. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

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

In the evening is the cheapest time of day to fly from Illinois to Ireland when you can find flight prices for as low as €619. Flying to Ireland in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is at midday when prices are around €771.

What is the cheapest Illinois to Ireland flight route?

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

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

You are more likely to see cheaper flights to Ireland from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €595 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Illinois for as low as €553 on momondo.

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

There is only 1 cabin class available to choose from on Illinois to Ireland 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 Illinois to Ireland flights?

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

Cheap Illinois to Ireland flight deals and tips

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

Best price found	€632
Fastest flight time	7h 20m
Direct flights	Every day
Airports in Ireland	1 airport

The best flight deal from Illinois to Ireland found on momondo in the last 72 hours is €632

The fastest flight from Illinois to Ireland takes 7h 20m

Direct flights go from Illinois to Ireland every day.

There is 1 airport near Ireland: Dublin (DUB)

Search flight deals

When did momondo last update prices for flights from Illinois to Ireland?
Prices for flights from Illinois to Ireland are updated daily.
How many operators does momondo search for flights from Illinois to Ireland?
There are 3 operators available for flights from Illinois to Ireland as of September 2025.
How old do you have to be to fly from Illinois to Ireland?
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 Illinois to Ireland.
What documentation or ID do you need to fly to Ireland?
The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Ireland?
Based on momondo bookings for flights between Illinois and Ireland, the leading plane model is Boeing 787-8 Dreamliner, making up 33.69% of the total bookings. Other popular models include Boeing 787 Dreamliner with 18.16%, Airbus A330 with 11.19%, and Boeing 767-300 with 10.97%.

Best airlines flying from Illinois to Ireland

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

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom €449	Free Cancellation	Rating 7.2 1,296 reviews		Search Aer Lingus flights
United Airlines	PriceFrom €549	Free Cancellation	Rating 7.4 8,928 reviews		Search United Airlines flights

Why use momondo?

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

Finding the right flight to Ireland from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ireland quick and easy, saving you time and money.

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

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

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

Once you have performed a search for Illinois to Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from Illinois and alert you when they change.

An easier way to manage your Ireland trip

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

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Find better results for your trip to Ireland

Popular Cities in Ireland

Flights to Dublinfrom €40

Flights to Corkfrom €98

Flights to Shannon, Clarefrom €104

Flights to Donegalfrom €60

Flights to Milltown (Kerry)from €40

Cheap flights from Illinois to Ireland from €173

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Ireland departing on 7/10. 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, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Illinois to Ireland

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Aer Lingus flights from Illinois to Ireland

Our best Aer Lingus deals on Illinois to Ireland flight tickets

Delta flights from Illinois to Ireland

Our best Delta deals on Illinois to Ireland flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Ireland that are best for you.

See travel insights to Ireland from

How to get the cheapest flight ticket from Illinois to Ireland

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 Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Illinois averaging around €474.

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

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

What is the cheapest Illinois to Ireland flight route?

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

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

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

There is only 1 cabin class available to choose from on Illinois to Ireland 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 Illinois to Ireland flights?

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

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

TAP AIR PORTUGAL and JetBlue are the most popular carriers operating from Illinois to Ireland

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

18 flights are operational daily from Illinois to Ireland as of September 2025. The most popular departure time for this route is 20:00, with 81% of flights per day taking off in the evening.

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

The number of flights available between Illinois and Ireland is 132 per week as of September 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

Cheap Illinois to Ireland flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Ireland

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

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

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

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

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

Best airlines flying from Illinois to Ireland

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

Why use momondo?

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

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

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

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

An easier way to manage your Ireland trip

We make it super easy to schedule, organise 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 Ireland

Popular Cities in Ireland

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