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

8 flights are operational daily from Illinois to Ireland as of February 2026. The most popular departure time for this route is 18:00, with 100% of flights per day taking off in the evening.

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

Aer Lingus, JetBlue, and United Airlines are the most popular carriers operating from Illinois to Ireland

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

The number of flights available between Illinois and Ireland is 57 per week as of February 2026. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

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 February 2026.

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.

€167 Cheap Flights from Illinois to Ireland in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Illinois to Ireland

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

19:25 - 13:15

ORD

DUB

11h 50m

1 stop

14:15 - 18:15

DUB

ORD

10h 00m

1 stop

€358Icelandair

Wed, 22 Apr - Thu, 30 Apr

19:25 - 13:15

ORD

DUB

11h 50m

1 stop

12:15 - 18:15

DUB

ORD

12h 00m

1 stop

€359Icelandair

Wed, 15 Apr - Wed, 29 Apr

22:50 - 17:10

ORD

DUB

13h 20m

1 stop

11:45 - 21:05

DUB

ORD

14h 20m

1 stop

€366Lufthansa

Tue, 10 Mar - Thu, 19 Mar

19:15 - 10:55

ORD

DUB

33h 40m

2 stops

11:40 - 16:10

DUB

ORD

58h 30m

2 stops

€367Scandinavian Airlines

Sat, 18 Apr - Wed, 22 Apr

15:50 - 11:00

STL

DUB

13h 10m

1 stop

05:10 - 14:55

DUB

STL

14h 45m

1 stop

€378Lufthansa

Wed, 4 Mar - Wed, 11 Mar

16:05 - 08:15

STL

DUB

10h 10m

1 stop

06:05 - 13:25

DUB

STL

13h 20m

1 stop

€387Multiple Airlines

Mon, 13 Apr - Fri, 24 Apr

12:15 - 10:20

STL

DUB

16h 05m

1 stop

09:00 - 22:14

DUB

STL

43h 14m

2 stops

€388United Airlines

Sat, 21 Feb - Mon, 2 Mar

16:05 - 08:15

STL

DUB

10h 10m

1 stop

05:55 - 13:25

DUB

STL

13h 30m

1 stop

€390Multiple Airlines

Tue, 14 Apr - Wed, 22 Apr

08:30 - 08:10

STL

DUB

17h 40m

2 stops

09:00 - 22:14

DUB

STL

43h 14m

2 stops

€391United Airlines

Sat, 21 Feb - Mon, 2 Mar

18:34 - 23:25

MDW

ORK

23h 51m

2 stops

06:15 - 17:54

ORK

MDW

17h 39m

2 stops

€1,571Scandinavian Airlines

Fri, 27 Mar - Mon, 6 Apr

Icelandair flights from Illinois to Ireland

Our best Icelandair deals on Illinois to Ireland flight tickets

Icelandair

22 Apr

ORD19:25Chicago O'Hare Intl

11h 50m

1 stop

DUB13:15Dublin

30 Apr

DUB14:15Dublin

10h 00m

1 stop

ORD18:15Chicago O'Hare Intl

€358

Icelandair

2 Mar

ORD18:30Chicago O'Hare Intl

9h 45m

1 stop

DUB10:15Dublin

17 Mar

DUB11:30Dublin

11h 50m

1 stop

ORD18:20Chicago O'Hare Intl

€362

Icelandair

24 Feb

ORD18:30Chicago O'Hare Intl

9h 45m

1 stop

DUB10:15Dublin

6 Mar

DUB11:30Dublin

11h 50m

1 stop

ORD17:20Chicago O'Hare Intl

€363

Delta flights from Illinois to Ireland

Our best Delta deals on Illinois to Ireland flight tickets

Delta

2 Mar

MDW12:45Chicago Midway

13h 00m

1 stop

DUB07:45Dublin

10 Mar

DUB09:45Dublin

12h 37m

1 stop

MDW17:22Chicago Midway

€400

Delta

21 Feb

STL06:10Lambert-St Louis

19h 35m

1 stop

DUB07:45Dublin

1 Mar

DUB05:55Dublin

16h 47m

2 stops

STL16:42Lambert-St Louis

€409

Delta

4 Mar

MDW12:45Chicago Midway

13h 00m

1 stop

DUB07:45Dublin

11 Mar

DUB05:55Dublin

17h 45m

2 stops

MDW18:40Chicago Midway

€410

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 22/4

19:25-13:15

1 stop11h 50m

Dublin

Thu 30/4

14:15-18:15

1 stop10h 00m

€358

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 15/4

19:25-13:15

1 stop11h 50m

Dublin

Wed 29/4

12:15-18:15

1 stop12h 00m

€359

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/3

22:50-17:10

1 stop13h 20m

Dublin

Thu 19/3

11:45-21:05

1 stop14h 20m

€366

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 18/4

19:15-10:55

2 stops33h 40m

Dublin

Wed 22/4

11:40-16:10

2 stops58h 30m

€367

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/3

15:50-11:00

1 stop13h 10m

Dublin

Wed 11/3

05:10-14:55

1 stop14h 45m

€378

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 13/4

16:05-08:15

1 stop10h 10m

Dublin

Fri 24/4

06:05-13:25

1 stop13h 20m

€387

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 21/2

12:15-10:20

1 stop16h 05m

Dublin

Mon 2/3

09:00-22:14

2 stops43h 14m

€388

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 14/4

16:05-08:15

1 stop10h 10m

Dublin

Wed 22/4

05:55-13:25

1 stop13h 30m

€390

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 21/2

08:30-08:10

2 stops17h 40m

Dublin

Mon 2/3

09:00-22:14

2 stops43h 14m

€391

ChicagoCork

MDW - ORK

MDWORK

Chicago Midway

Fri 27/3

18:34-23:25

2 stops23h 51m

Cork

Mon 6/4

06:15-17:54

2 stops17h 39m

€1,571

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 €477.

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 €540. 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 €734. 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 €618. 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 in the afternoon when prices are around €640.

What is the cheapest Illinois to Ireland flight route?

Fly from Chicago O'Hare Intl to Dublin 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 €578 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 €543 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	€359
Fastest flight time	7h 15m
Direct flights	Every day
Airports in Ireland	77 airports

The best flight deal from Illinois to Ireland found on momondo in the last 72 hours is €359

The fastest flight from Illinois to Ireland takes 7h 15m

Direct flights go from Illinois to Ireland every day.

There are 77 airports in Ireland. From Illinois there are direct flights to Dublin (DUB), Shannon (SNN).

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 February 2026.
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 Airbus A330-300, making up 26.56% of the total bookings. Other popular models include Boeing 787 Dreamliner with 17.83%, Boeing 767-300 with 16.19%, and Boeing 787-8 Dreamliner with 15.95%.

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 €299	Free Cancellation	Rating 7.2 1,445 reviews		Search Aer Lingus flights
United Airlines	PriceFrom €443	Free Cancellation	Rating 7.4 9,236 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 7/3

Sat 14/3

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Popular cities

Other flights from Illinois

Other flights to Ireland

Airlines

Complete your trip

Feeling lucky

Popular Cities in Ireland

Flights to Dublinfrom €37

Flights to Corkfrom €86

Flights to Shannon, Clarefrom €92

Flights to Donegalfrom €217

Flights to Milltown (Kerry)from €38

Cheap flights from Illinois to Ireland from €167

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 16/2. 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

Icelandair flights from Illinois to Ireland

Our best Icelandair 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

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 €477.

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 Dublin 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?

Aer Lingus, JetBlue, and United Airlines are the most popular carriers operating from Illinois to Ireland

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

8 flights are operational daily from Illinois to Ireland as of February 2026. The most popular departure time for this route is 18:00, with 100% 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 57 per week as of February 2026. The most frequent departure day is Wed, with 16% 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

Illinois flight routes

According to popular flight searches on momondo this year

Ireland flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Ireland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Ireland

Explore popular destinations other users love

According to popular flight searches on momondo this year