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

JetBlue, WestJet, and Delta are the most popular carriers operating from Ireland to Illinois

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

As of May 2026, 18 flights take off from Ireland and land in Illinois each day. The most common flight departure time for this route is 11:00, with 77% 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 7h 59m and 8h 20m, respectively.

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

As of May 2026, there are 131 flights per week flying from Ireland to Illinois. The most common day of the week flights depart is Fri, with 15% of flights taking off on this day.

Which airlines fly to Illinois?

Aer Lingus, United Airlines and American Airlines 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 69% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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 May 2026, there are 5 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.

€254 Cheap Flights from Ireland to Illinois 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 Ireland to Illinois

Round-trip

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

17:10 - 14:40

ORD

ORK

15h 30m

1 stop

€493Multiple Airlines

Thu, 18 Jun - Tue, 23 Jun

06:15 - 14:30

ORK

ORD

14h 15m

1 stop

17:10 - 14:40

ORD

ORK

15h 30m

1 stop

€496Multiple Airlines

Mon, 22 Jun - Mon, 29 Jun

13:05 - 21:36

SNN

ORD

14h 31m

1 stop

06:05 - 11:10

ORD

SNN

23h 05m

1 stop

€499KLM

Thu, 4 Jun - Fri, 12 Jun

13:05 - 21:48

SNN

ORD

14h 43m

1 stop

06:05 - 11:10

ORD

SNN

23h 05m

1 stop

€500KLM

Thu, 11 Jun - Sat, 20 Jun

13:05 - 21:48

SNN

ORD

14h 43m

1 stop

18:00 - 11:10

ORD

SNN

11h 10m

1 stop

€511Delta

Tue, 23 Jun - Mon, 29 Jun

13:05 - 21:48

SNN

ORD

14h 43m

1 stop

18:00 - 11:10

ORD

SNN

11h 10m

1 stop

€512Air France

Fri, 12 Jun - Tue, 16 Jun

13:05 - 21:36

SNN

ORD

14h 31m

1 stop

10:05 - 11:10

ORD

SNN

19h 05m

1 stop

€513Delta

Tue, 2 Jun - Fri, 19 Jun

09:30 - 11:30

DUB

ORD

8h 00mdirect

11:50 - 09:45

ORD

DUB

15h 55m

1 stop

€527Finnair

Thu, 21 May - Thu, 28 May

09:30 - 11:29

DUB

ORD

7h 59mdirect

21:30 - 17:15

ORD

DUB

13h 45m

1 stop

€530Finnair

Mon, 22 Jun - Mon, 29 Jun

13:05 - 15:40

SNN

MDW

32h 35m

2 stops

13:26 - 11:10

MDW

SNN

15h 44m

2 stops

€648Air France

Fri, 12 Jun - Tue, 16 Jun

KLM flights from Ireland to Illinois

Our best KLM deals on Ireland to Illinois flight tickets

KLM

4 Jun

SNN13:05Shannon

14h 31m

1 stop

ORD21:36Chicago O'Hare Intl

12 Jun

ORD06:05Chicago O'Hare Intl

23h 05m

1 stop

SNN11:10Shannon

€499

KLM

11 Jun

SNN13:05Shannon

14h 43m

1 stop

ORD21:48Chicago O'Hare Intl

20 Jun

ORD06:05Chicago O'Hare Intl

23h 05m

1 stop

SNN11:10Shannon

€500

KLM

1 Jun

SNN13:05Shannon

14h 31m

1 stop

ORD21:36Chicago O'Hare Intl

10 Jun

ORD06:05Chicago O'Hare Intl

23h 05m

1 stop

SNN11:10Shannon

€508

Air France flights from Ireland to Illinois

Our best Air France deals on Ireland to Illinois flight tickets

Air France

12 Jun

SNN13:05Shannon

14h 43m

1 stop

ORD21:48Chicago O'Hare Intl

16 Jun

ORD18:00Chicago O'Hare Intl

11h 10m

1 stop

SNN11:10Shannon

€512

Air France

15 May

DUB11:00Dublin

16h 09m

1 stop

MDW21:09Chicago Midway

24 May

MDW13:22Chicago Midway

13h 23m

2 stops

DUB08:45Dublin

€629

Air France

12 Jun

SNN13:05Shannon

32h 35m

2 stops

MDW15:40Chicago Midway

16 Jun

MDW13:26Chicago Midway

15h 44m

2 stops

SNN11:10Shannon

€648

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 18/6

06:15-14:15

1 stop14h 00m

Chicago O'Hare Intl

Tue 23/6

17:10-14:40

1 stop15h 30m

€493

CorkChicago

ORK - ORD

ORKORD

Cork

Mon 22/6

06:15-14:30

1 stop14h 15m

Chicago O'Hare Intl

Mon 29/6

17:10-14:40

1 stop15h 30m

€496

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 4/6

13:05-21:36

1 stop14h 31m

Chicago O'Hare Intl

Fri 12/6

06:05-11:10

1 stop23h 05m

€499

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 11/6

13:05-21:48

1 stop14h 43m

Chicago O'Hare Intl

Sat 20/6

06:05-11:10

1 stop23h 05m

€500

ShannonChicago

SNN - ORD

SNNORD

Shannon

Tue 23/6

13:05-21:48

1 stop14h 43m

Chicago O'Hare Intl

Mon 29/6

18:00-11:10

1 stop11h 10m

€511

ShannonChicago

SNN - ORD

SNNORD

Shannon

Fri 12/6

13:05-21:48

1 stop14h 43m

Chicago O'Hare Intl

Tue 16/6

18:00-11:10

1 stop11h 10m

€512

ShannonChicago

SNN - ORD

SNNORD

Shannon

Tue 2/6

13:05-21:36

1 stop14h 31m

Chicago O'Hare Intl

Fri 19/6

10:05-11:10

1 stop19h 05m

€513

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 21/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Thu 28/5

11:50-09:45

1 stop15h 55m

€527

Fastest return journey

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 22/6

09:30-11:29

Nonstop7h 59m

Chicago O'Hare Intl

Mon 29/6

21:30-17:15

1 stop13h 45m

€530

ShannonChicago

SNN - MDW

SNNMDW

Shannon

Fri 12/6

13:05-15:40

2 stops32h 35m

Chicago Midway

Tue 16/6

13:26-11:10

2 stops15h 44m

€648

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 September. Flight prices, which tend to average around €231, are often lower during this time because this is during the off-season. If you’re not able to fly to Illinois in September, then January is your next best option. Flight prices from Ireland to Illinois during January average around €310.

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 €608. 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 €776.

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 €591. 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 €707. 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 €563 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 €410 on momondo.

Can stopping save me money on Ireland to Illinois flights?

You could potentially save up to 5% 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	€554
Fastest flight time	7h 59m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Ireland in the past 72 hours is €554. The best return flight deal from Ireland to Illinois found on momondo in the last 72 hours is €563.

The fastest flight from Ireland to Illinois takes 7h 59m

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 May 2026, there are 5 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 (26.10% of total bookings). The next most popular plane models are Airbus A330-300 (25.84%), Boeing 787 Dreamliner (20.06%), and Airbus A330 (7.20%).

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
Finnair	PriceFrom €373	Free Cancellation	Rating 7.6 1,393 reviews	Search Finnair flights
Icelandair	PriceFrom €375	Free Cancellation	Rating 7.0 652 reviews	Search Icelandair flights
Aer Lingus	PriceFrom €394	Free Cancellation	Rating 7.3 1,551 reviews	Search Aer Lingus flights
United Airlines	PriceFrom €401	Free Cancellation	Rating 7.4 9,697 reviews	Search United Airlines flights
American Airlines	PriceFrom €414	Free Cancellation	Rating 7.1 11,668 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.