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Cheap flights from Ireland to Chicago from $385

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Chicago departing on 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ireland to Chicago

Recent round-trip flight deals from Ireland to Chicago

Enter your travel dates to find the best prices.
Icelandair Logo
11:30 am - 5:20 pmDUB-ORD
11h 50m1 stop
Icelandair Logo
6:30 pm - 10:15 amORD-DUB
9h 45m1 stop
$451Icelandair
Find Deal
Thu, Dec 11 - Tue, Dec 16
Lufthansa Logo
5:10 am - 3:20 pmDUB-ORD
16h 10m1 stop
Lufthansa Logo
6:35 pm - 8:10 amORD-DUB
7h 35mnonstop
$452Lufthansa
Find Deal
Wed, Dec 10 - Mon, Feb 2
Multiple Airlines Logo
8:50 am - 3:25 pmDUB-ORD
12h 35m1 stop
Multiple Airlines Logo
9:45 pm - 2:20 pmORD-DUB
10h 35m1 stop
$453Multiple Airlines
Find Deal
Fri, Feb 13 - Fri, Feb 20
Multiple Airlines Logo
9:00 am - 3:10 pmDUB-ORD
12h 10m1 stop
Multiple Airlines Logo
6:35 pm - 8:10 amORD-DUB
7h 35mnonstop
$454Multiple Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 16
Scandinavian Airlines Logo
7:05 pm - 4:45 pmDUB-ORD
27h 40m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:10 pmORD-DUB
16h 50m2 stops
$456Scandinavian Airlines
Find Deal
Thu, Nov 20 - Thu, Nov 27
Scandinavian Airlines Logo
10:10 am - 4:45 pmDUB-ORD
12h 35m1 stop
Scandinavian Airlines Logo
7:20 pm - 9:25 amORD-DUB
32h 05m1 stop
$462Scandinavian Airlines
Find Deal
Sat, Nov 22 - Fri, Nov 28
United Airlines Logo
9:00 am - 3:10 pmDUB-ORD
12h 10m1 stop
United Airlines Logo
3:35 pm - 7:30 amORD-DUB
9h 55m1 stop
$465United Airlines
Find Deal
Mon, Dec 8 - Sun, Dec 14
Aer Lingus Logo
3:20 pm - 5:55 pmDUB-ORD
8h 35mnonstop
Aer Lingus Logo
7:40 pm - 9:00 amORD-DUB
7h 20mnonstop
$468Aer Lingus
Find Deal
Mon, Nov 10 - Fri, Nov 14
United Airlines Logo
9:00 am - 3:10 pmDUB-ORD
12h 10m1 stop
United Airlines Logo
1:00 pm - 7:30 amORD-DUB
12h 30m1 stop
$469United Airlines
Find Deal
Mon, Dec 8 - Sat, Jan 31
Aer Lingus Logo
11:30 am - 2:00 pmDUB-ORD
8h 30mnonstop
Aer Lingus Logo
3:50 pm - 5:10 amORD-DUB
7h 20mnonstop
$500Aer Lingus
Find Deal
Wed, Dec 10 - Sun, Dec 14

Icelandair flights from Ireland to Chicago

Our best Icelandair deals on Ireland to Chicago flight tickets
Icelandair
Dec 11
DUB11:30 amDublin
11h 50m
1 stop
ORD5:20 pmChicago O'Hare Intl
Dec 16
ORD6:30 pmChicago O'Hare Intl
9h 45m
1 stop
DUB10:15 amDublin
$451
Find similar
Icelandair
Nov 24
DUB11:30 amDublin
11h 50m
1 stop
ORD5:20 pmChicago O'Hare Intl
Nov 29
ORD6:30 pmChicago O'Hare Intl
9h 45m
1 stop
DUB10:15 amDublin
$485
Find similar

Lufthansa flights from Ireland to Chicago

Our best Lufthansa deals on Ireland to Chicago flight tickets
Lufthansa
Dec 10
DUB5:10 amDublin
16h 10m
1 stop
ORD3:20 pmChicago O'Hare Intl
Feb 2
ORD6:35 pmChicago O'Hare Intl
7h 35m
DUB8:10 amDublin
$452
Find similar
Lufthansa
Nov 6
DUB10:50 amDublin
13h 35m
1 stop
ORD6:25 pmChicago O'Hare Intl
Nov 15
ORD6:00 pmChicago O'Hare Intl
17h 10m
1 stop
DUB5:10 pmDublin
$453
Find similar
Lufthansa
Nov 25
DUB10:40 amDublin
8h 50m
ORD1:30 pmChicago O'Hare Intl
Dec 2
ORD6:35 pmChicago O'Hare Intl
7h 35m
DUB8:10 amDublin
$458
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ireland to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Ireland to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 12/11

11:30 am-5:20 pm

1 stop11h 50m

Chicago O'Hare Intl

Tue 12/16

6:30 pm-10:15 am

1 stop9h 45m

$451

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 12/10

5:10 am-3:20 pm

1 stop16h 10m

Chicago O'Hare Intl

Mon 2/2

6:35 pm-8:10 am

Nonstop7h 35m

$452

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 2/13

8:50 am-3:25 pm

1 stop12h 35m

Chicago O'Hare Intl

Fri 2/20

9:45 pm-2:20 pm

1 stop10h 35m

$453

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 11/9

9:00 am-3:10 pm

1 stop12h 10m

Chicago O'Hare Intl

Sun 11/16

6:35 pm-8:10 am

Nonstop7h 35m

$454

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 11/20

7:05 pm-4:45 pm

1 stop27h 40m

Chicago O'Hare Intl

Thu 11/27

7:20 pm-6:10 pm

2 stops16h 50m

$456

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 11/22

10:10 am-4:45 pm

1 stop12h 35m

Chicago O'Hare Intl

Fri 11/28

7:20 pm-9:25 am

1 stop32h 05m

$462

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 12/8

9:00 am-3:10 pm

1 stop12h 10m

Chicago O'Hare Intl

Sun 12/14

3:35 pm-7:30 am

1 stop9h 55m

$465

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 11/10

3:20 pm-5:55 pm

Nonstop8h 35m

Chicago O'Hare Intl

Fri 11/14

7:40 pm-9:00 am

Nonstop7h 20m

$468

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 12/8

9:00 am-3:10 pm

1 stop12h 10m

Chicago O'Hare Intl

Sat 1/31

1:00 pm-7:30 am

1 stop12h 30m

$469

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 12/10

11:30 am-2:00 pm

Nonstop8h 30m

Chicago O'Hare Intl

Sun 12/14

3:50 pm-5:10 am

Nonstop7h 20m

$500

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

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?

The month of September is, on average, the cheapest month to fly to Chicago from Ireland, with most prices found around $486. If you’re not able to fly to Chicago in September, then January is your next best option. Flight prices from Ireland to Chicago during January average around $511.

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 Sunday when prices can be found for as low as $665. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to Chicago for around $808.

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

Our most recent data shows that the best time of day to fly to Chicago is in the afternoon. Flights from Ireland to Chicago during this time can be as low as $691. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $817.

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 $603 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Ireland for as low as $535 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 24% 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

$519

Fastest flight time

8h 20m

Direct flights

Every day

Airports in Chicago

1 airport
The best one-way flight to Chicago from Ireland in the past 72 hours is $519. The best round-trip flight deal from Ireland to Chicago found on momondo in the last 72 hours is $602.
The fastest flight from Ireland to Chicago takes 8h 20m
Direct flights go from Ireland to Chicago every day.
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 updated daily.

  • 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?

    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 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 required travel and health documents for your Chicago 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 license and a passport valid for six months after your intended arrival at Chicago. 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 Ireland to Chicago?

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
LufthansaPriceFrom $393Free CancellationRating
6.8
7,541 reviews
Search Lufthansa flights
Aer LingusPriceFrom $455Free CancellationRating
7.2
1,363 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $479Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Portage
Lansing
Schererville
Valparaiso
Crown Point
Munster
Chesterton
Monticello
Porter
Griffith
Saint John

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?

momondo does allow users to show only those flights to Chicago from Ireland which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Ireland to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Chicago from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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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
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport