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.

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

As of May 2026, there are 87 flights per week flying from Ireland to Illinois. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

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

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

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 day?

As of May 2026, 12 flights take off from Ireland and land in Illinois each day. The most common flight departure time for this route is 11:00, with 70% of daily flights taking off at midday.

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.

€273 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

20:20 - 14:40

ORD

ORK

12h 20m

1 stop

€499Multiple Airlines

Sat, 23 May - Thu, 28 May

13:05 - 21:48

SNN

ORD

14h 43m

1 stop

18:00 - 11:10

ORD

SNN

11h 10m

1 stop

€513Delta

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

€514Delta

Tue, 23 Jun - Mon, 29 Jun

10:00 - 18:33

DUB

MDW

14h 33m

1 stop

13:22 - 09:15

MDW

DUB

13h 53m

1 stop

€522KLM

Fri, 15 May - Mon, 25 May

10:00 - 18:33

DUB

MDW

14h 33m

1 stop

13:59 - 07:55

MDW

DUB

11h 56m

1 stop

€523KLM

Fri, 15 May - Mon, 25 May

06:30 - 12:30

DUB

ORD

12h 00m

1 stop

17:10 - 09:50

ORD

DUB

10h 40m

1 stop

€523British Airways

Sat, 24 Oct - Sat, 7 Nov

09:30 - 11:30

DUB

ORD

8h 00mdirect

11:50 - 09:45

ORD

DUB

15h 55m

1 stop

€525Finnair

Thu, 21 May - Sat, 30 May

09:30 - 11:29

DUB

ORD

7h 59mdirect

11:40 - 09:45

ORD

DUB

16h 05m

1 stop

€526Finnair

Tue, 23 Jun - Tue, 30 Jun

09:30 - 11:30

DUB

ORD

8h 00mdirect

21:15 - 14:30

ORD

DUB

11h 15m

1 stop

€533British Airways

Fri, 15 May - Thu, 28 May

09:30 - 11:50

SNN

ORD

8h 20mdirect

14:25 - 10:15

ORD

SNN

13h 50m

1 stop

€623United Airlines

Thu, 11 Jun - Fri, 3 Jul

British Airways flights from Ireland to Illinois

Our best British Airways deals on Ireland to Illinois flight tickets

British Airways

24 Oct

DUB06:30Dublin

12h 00m

1 stop

ORD12:30Chicago O'Hare Intl

7 Nov

ORD17:10Chicago O'Hare Intl

10h 40m

1 stop

DUB09:50Dublin

€523

British Airways

15 May

DUB09:30Dublin

8h 00m

ORD11:30Chicago O'Hare Intl

28 May

ORD21:15Chicago O'Hare Intl

11h 15m

1 stop

DUB14:30Dublin

€533

British Airways

15 May

DUB09:30Dublin

8h 00m

ORD11:30Chicago O'Hare Intl

28 May

ORD17:00Chicago O'Hare Intl

10h 40m

1 stop

DUB09:40Dublin

€535

JetBlue flights from Ireland to Illinois

Our best JetBlue deals on Ireland to Illinois flight tickets

JetBlue

21 Jun

DUB11:30Dublin

15h 59m

1 stop

ORD21:29Chicago O'Hare Intl

2 Jul

ORD20:20Chicago O'Hare Intl

30h 00m

1 stop

DUB08:20Dublin

€527

JetBlue

9 Jul

DUB11:30Dublin

16h 25m

1 stop

ORD21:55Chicago O'Hare Intl

14 Jul

ORD09:39Chicago O'Hare Intl

17h 21m

1 stop

DUB09:00Dublin

€528

JetBlue

16 Jul

DUB11:30Dublin

16h 25m

1 stop

ORD21:55Chicago O'Hare Intl

28 Jul

ORD10:56Chicago O'Hare Intl

15h 24m

1 stop

DUB08:20Dublin

€552

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkChicago

ORK - ORD

ORKORD

Cork

Sat 23/5

06:15-14:15

1 stop14h 00m

Chicago O'Hare Intl

Thu 28/5

20:20-14:40

1 stop12h 20m

€499

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

€513

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

€514

DublinChicago

DUB - MDW

DUBMDW

Dublin

Fri 15/5

10:00-18:33

1 stop14h 33m

Chicago Midway

Mon 25/5

13:22-09:15

1 stop13h 53m

€522

DublinChicago

DUB - MDW

DUBMDW

Dublin

Fri 15/5

10:00-18:33

1 stop14h 33m

Chicago Midway

Mon 25/5

13:59-07:55

1 stop11h 56m

€523

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 24/10

06:30-12:30

1 stop12h 00m

Chicago O'Hare Intl

Sat 7/11

17:10-09:50

1 stop10h 40m

€523

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 21/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sat 30/5

11:50-09:45

1 stop15h 55m

€525

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 23/6

09:30-11:29

Nonstop7h 59m

Chicago O'Hare Intl

Tue 30/6

11:40-09:45

1 stop16h 05m

€526

Fastest return journey

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 15/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Thu 28/5

21:15-14:30

1 stop11h 15m

€533

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 11/6

09:30-11:50

Nonstop8h 20m

Chicago O'Hare Intl

Fri 3/7

14:25-10:15

1 stop13h 50m

€623

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 €233, 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 €312.

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 €609. 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 €771.

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 €595. 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 €712. 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 €561 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 €413 on momondo.

Can stopping save me money on Ireland to Illinois flights?

You could potentially save up to 8% 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	€558
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 €558. The best return flight deal from Ireland to Illinois found on momondo in the last 72 hours is €567.

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 €376	Free Cancellation	Rating 7.6 1,392 reviews	Search Finnair flights
Icelandair	PriceFrom €378	Free Cancellation	Rating 7.0 650 reviews	Search Icelandair flights
Aer Lingus	PriceFrom €397	Free Cancellation	Rating 7.3 1,543 reviews	Search Aer Lingus flights
United Airlines	PriceFrom €404	Free Cancellation	Rating 7.4 9,684 reviews	Search United Airlines flights
American Airlines	PriceFrom €417	Free Cancellation	Rating 7.1 11,672 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.