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

As of September 2025, 128 flights take off from Ireland and land in Chicago each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.

Which airlines fly to Chicago?

Aer Lingus, United Airlines and Icelandair are the top three most popular airlines that fly to Chicago from Ireland according to our data. Aer Lingus is the first choice among our users, with 72% of people opting to fly with this airline when travelling to Chicago. Keep in mind that there are 6 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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

The number of flights available between Ireland and Chicago is 18 per day as of September 2025. The most frequent departure time is 11:00, with 51% of daily flights leaving at midday.

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

JetBlue, Aer Lingus, and TAP AIR PORTUGAL are the most popular carriers operating from Ireland to Chicago

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

Prices for flights from Ireland to Chicago are refreshed on a daily basis.

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

As of September 2025, there are 6 operators available to choose from for flights from Ireland to Chicago.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Chicago.

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

The necessary travel and health documents for your Chicago 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.

£295 Cheap Flights from Ireland to Chicago in 2025/26

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Find the cheapest flights from Ireland to Chicago

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Recent return flight deals from Ireland to Chicago

12:30 - 21:05DUB-ORD

13h 35m1 stop

19:20 - 19:35ORD-DUB

18h 15m2 stops

£323Scandinavian Airlines

Find Deal

mer, 29 ott - dom, 2 nov

11:45 - 20:05DUB-ORD

14h 20m1 stop

18:35 - 08:10ORD-DUB

7h 35mdirect

£325Multiple Airlines

Find Deal

mer, 5 nov - mar, 11 nov

19:05 - 18:45DUB-ORD

28h 40m1 stop

19:20 - 11:45ORD-DUB

34h 25m1 stop

£326Scandinavian Airlines

Find Deal

mer, 29 ott - dom, 2 nov

05:10 - 20:05DUB-ORD

20h 55m1 stop

21:50 - 17:10ORD-DUB

13h 20m1 stop

£329Lufthansa

Find Deal

mer, 5 nov - mar, 11 nov

05:10 - 16:20DUB-ORD

16h 10m1 stop

18:35 - 08:10ORD-DUB

7h 35mdirect

£334Lufthansa

Find Deal

dom, 2 nov - dom, 9 nov

09:20 - 15:00DUB-ORD

35h 40m1 stop

20:20 - 09:45ORD-DUB

7h 25mdirect

£342United Airlines

Find Deal

mer, 8 ott - lun, 13 ott

09:00 - 15:10DUB-ORD

12h 10m1 stop

18:35 - 08:10ORD-DUB

7h 35mdirect

£343United Airlines

Find Deal

lun, 3 nov - dom, 9 nov

09:45 - 16:25DUB-MDW

12h 40m1 stop

10:35 - 07:45MDW-DUB

15h 10m1 stop

£350KLM

Find Deal

dom, 22 feb - mer, 4 mar

20:40 - 13:50DUB-ORD

23h 10m1 stop

20:40 - 14:20ORD-DUB

11h 40m1 stop

£368British Airways

Find Deal

dom, 2 nov - dom, 9 nov

09:45 - 16:25DUB-MDW

12h 40m1 stop

13:05 - 07:45MDW-DUB

13h 40m1 stop

£456KLM

Find Deal

dom, 1 mar - mer, 11 mar

Lufthansa flights from Ireland to Chicago

Our best Lufthansa deals on Ireland to Chicago flight tickets

Lufthansa

5 Nov

DUB05:10Dublin

20h 55m

1 stop

ORD20:05Chicago O'Hare Intl

11 Nov

ORD21:50Chicago O'Hare Intl

13h 20m

1 stop

DUB17:10Dublin

£329

Find similar

Lufthansa

2 Nov

DUB05:10Dublin

16h 10m

1 stop

ORD16:20Chicago O'Hare Intl

9 Nov

ORD18:35Chicago O'Hare Intl

7h 35m

DUB08:10Dublin

£334

Find similar

Lufthansa

13 Oct

DUB05:55Dublin

15h 00m

1 stop

ORD14:55Chicago O'Hare Intl

21 Oct

ORD20:20Chicago O'Hare Intl

7h 25m

DUB09:45Dublin

£337

Find similar

Delta flights from Ireland to Chicago

Our best Delta deals on Ireland to Chicago flight tickets

Delta

31 Oct

DUB05:55Dublin

14h 25m

1 stop

ORD15:20Chicago O'Hare Intl

4 Nov

ORD16:15Chicago O'Hare Intl

17h 30m

2 stops

DUB15:45Dublin

£340

Find similar

Delta

13 Oct

DUB05:55Dublin

14h 45m

1 stop

ORD14:40Chicago O'Hare Intl

21 Oct

ORD10:36Chicago O'Hare Intl

15h 39m

2 stops

DUB08:15Dublin

£341

Find similar

Delta

31 Oct

DUB05:55Dublin

17h 12m

2 stops

ORD18:07Chicago O'Hare Intl

7 Nov

ORD17:20Chicago O'Hare Intl

16h 25m

1 stop

DUB15:45Dublin

£342

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

mer 29/10

12:30-21:05

1 stop13h 35m

Chicago O'Hare Intl

dom 2/11

19:20-19:35

2 stops18h 15m

£323

DublinChicago

DUB - ORD

DUBORD

Dublin

mer 5/11

11:45-20:05

1 stop14h 20m

Chicago O'Hare Intl

mar 11/11

18:35-08:10

Nonstop7h 35m

£325

DublinChicago

DUB - ORD

DUBORD

Dublin

mer 29/10

19:05-18:45

1 stop28h 40m

Chicago O'Hare Intl

dom 2/11

19:20-11:45

1 stop34h 25m

£326

DublinChicago

DUB - ORD

DUBORD

Dublin

mer 5/11

05:10-20:05

1 stop20h 55m

Chicago O'Hare Intl

mar 11/11

21:50-17:10

1 stop13h 20m

£329

DublinChicago

DUB - ORD

DUBORD

Dublin

dom 2/11

05:10-16:20

1 stop16h 10m

Chicago O'Hare Intl

dom 9/11

18:35-08:10

Nonstop7h 35m

£334

DublinChicago

DUB - ORD

DUBORD

Dublin

mer 8/10

09:20-15:00

1 stop35h 40m

Chicago O'Hare Intl

lun 13/10

20:20-09:45

Nonstop7h 25m

£342

DublinChicago

DUB - ORD

DUBORD

Dublin

lun 3/11

09:00-15:10

1 stop12h 10m

Chicago O'Hare Intl

dom 9/11

18:35-08:10

Nonstop7h 35m

£343

DublinChicago

DUB - MDW

DUBMDW

Dublin

dom 22/2

09:45-16:25

1 stop12h 40m

Chicago Midway

mer 4/3

10:35-07:45

1 stop15h 10m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

dom 2/11

20:40-13:50

1 stop23h 10m

Chicago O'Hare Intl

dom 9/11

20:40-14:20

1 stop11h 40m

£368

DublinChicago

DUB - MDW

DUBMDW

Dublin

dom 1/3

09:45-16:25

1 stop12h 40m

Chicago Midway

mer 11/3

13:05-07:45

1 stop13h 40m

£456

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How to get the cheapest flight ticket from Ireland to Chicago

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 Chicago?

The cheapest month to fly to Chicago from Ireland is in January. Flight prices, which tend to average around £364, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Chicago from Ireland during September instead. Flights to Chicago in September, while not as cheap as those in January, still average around £373.

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

The cheapest day to depart on your flight to Chicago is on a Tuesday when prices can be found for as low as £536. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Monday, with ticket prices averaging around £591.

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

Flying to Chicago from Ireland in the evening is the least expensive time of day to depart. momondo users have found prices as low as £474 when looking at flights departing in the evening. Flights at midday are often more expensive, with an average ticket price of £583.

What is the cheapest Ireland to Chicago flight route?

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

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

You are more likely to see cheaper flights to Chicago from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around £444 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Ireland for as low as £392 on momondo.

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

There are 3 cabin classes available to choose from on Ireland to Chicago 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 Ireland to Chicago flights?

You could potentially save up to 43% on your flight if you consider stops on a Ireland to Chicago flight.

Cheap Ireland to Chicago flight deals and tips

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

Best price found	£500
Fastest flight time	8h 00m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Chicago	1 airport

The best one-way flight to Chicago from Ireland in the past 72 hours is £500. The best return flight deal from Ireland to Chicago found on momondo in the last 72 hours is £465.

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

Direct flights go from Ireland to Chicago on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights..

There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)

Search flight deals

When did momondo last update prices for flights from Ireland to Chicago?
Prices for flights from Ireland to Chicago are refreshed on a daily basis.
How many operators does momondo search for flights from Ireland to Chicago?
As of September 2025, there are 6 operators available to choose from for flights from Ireland to Chicago.
How old do you have to be to fly from Ireland to Chicago?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Chicago.
What documentation or ID do you need to fly to Chicago?
The necessary travel and health documents for your Chicago 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 Chicago?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Chicago is Airbus A330-300, representing 25.21% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 23.68%, Boeing 787-8 Dreamliner at 22.76%, and Boeing 767-300 at 9.26%.

Best airlines flying from Ireland to Chicago

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

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £293	Free Cancellation	Rating 7.0 544 reviews	Search Icelandair flights
British Airways	PriceFrom £294	Free Cancellation	Rating 6.7 7,363 reviews	Search British Airways flights
Finnair	PriceFrom £310	Free Cancellation	Rating 7.6 1,324 reviews	Search Finnair flights
Aer Lingus	PriceFrom £338	Free Cancellation	Rating 7.2 1,274 reviews	Search Aer Lingus flights
United Airlines	PriceFrom £341	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
American Airlines	PriceFrom £446	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Why use momondo?

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

Finding the right flight to Chicago from Ireland 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 Chicago quick and easy, saving you time and money.

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

Flights from Ireland to Chicago 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 Chicago?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ireland to Chicago.

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

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

An easier way to manage your Chicago 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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Cheap flights from Ireland to Chicago from £323

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Chicago departing on 29/10. 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 Ireland to Chicago

Recent return flight deals from Ireland to Chicago

Recent one-way flight deals from Ireland to Chicago

Recent last minute flight deals from Ireland to Chicago

Recent direct flight deals from Ireland to Chicago

Lufthansa flights from Ireland to Chicago

Our best Lufthansa deals on Ireland to Chicago flight tickets

Delta flights from Ireland to Chicago

Our best Delta deals on Ireland to Chicago flight tickets

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

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How to get the cheapest flight ticket from Ireland to Chicago

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 Chicago?

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

The cheapest day to depart on your flight to Chicago is on a Tuesday when prices can be found for as low as £536. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Monday, with ticket prices averaging around £591.

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

Flying to Chicago from Ireland in the evening is the least expensive time of day to depart. momondo users have found prices as low as £474 when looking at flights departing in the evening. Flights at midday are often more expensive, with an average ticket price of £583.

What is the cheapest Ireland to Chicago flight route?

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

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

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

There are 3 cabin classes available to choose from on Ireland to Chicago 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 Ireland to Chicago flights?

You could potentially save up to 43% on your flight if you consider stops on a Ireland to Chicago flight.

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

JetBlue, Aer Lingus, and TAP AIR PORTUGAL are the most popular carriers operating from Ireland to Chicago

Which airlines fly to Chicago?

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

The number of flights available between Ireland and Chicago is 18 per day as of September 2025. The most frequent departure time is 11:00, with 51% of daily flights leaving at midday.

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

As of September 2025, 128 flights take off from Ireland and land in Chicago each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.

Cheap Ireland to Chicago flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Chicago

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

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

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

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

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

Best airlines flying from Ireland to Chicago

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

Why use momondo?

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

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

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

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

An easier way to manage your Chicago 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 the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago