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Cheap flights from Ireland to Chicago from €378

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 14/12. 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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Find the cheapest flights from Ireland to Chicago

Recent return flight deals from Ireland to Chicago

Enter your travel dates to find the best prices.
Multiple Airlines Logo
05:10 - 13:10DUB-ORD
14h 00m1 stop
Multiple Airlines Logo
18:50 - 17:45ORD-DUB
16h 55m1 stop
€394Multiple Airlines
Find Deal
Mon, 9 Feb - Sun, 15 Feb
Lufthansa Logo
05:00 - 15:20DUB-ORD
16h 20m1 stop
Lufthansa Logo
19:35 - 08:10ORD-DUB
7h 35mdirect
€395Lufthansa
Find Deal
Tue, 24 Feb - Tue, 10 Mar
American Airlines Logo
13:10 - 17:00DUB-ORD
33h 50m1 stop
American Airlines Logo
18:25 - 12:35ORD-DUB
12h 10m1 stop
€396American Airlines
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Sat, 22 Nov - Mon, 1 Dec
Lufthansa Logo
05:10 - 15:20DUB-ORD
16h 10m1 stop
Lufthansa Logo
18:35 - 08:10ORD-DUB
7h 35mdirect
€397Lufthansa
Find Deal
Sun, 8 Feb - Sun, 15 Feb
British Airways Logo
08:50 - 18:45DUB-ORD
15h 55m1 stop
British Airways Logo
21:45 - 15:00ORD-DUB
11h 15m1 stop
€398British Airways
Find Deal
Fri, 27 Feb - Sat, 7 Mar
Scandinavian Airlines Logo
11:15 - 16:45DUB-ORD
35h 30m2 stops
Scandinavian Airlines Logo
19:20 - 18:10ORD-DUB
16h 50m2 stops
€400Scandinavian Airlines
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Thu, 12 Feb - Thu, 26 Feb
British Airways Logo
08:35 - 15:55DUB-ORD
13h 20m1 stop
British Airways Logo
21:15 - 14:45ORD-DUB
11h 30m1 stop
€403British Airways
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Tue, 31 Mar - Tue, 7 Apr
KLM Logo
10:00 - 18:08DUB-MDW
14h 08m1 stop
KLM Logo
14:00 - 07:55MDW-DUB
11h 55m1 stop
€417KLM
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Tue, 31 Mar - Tue, 7 Apr
KLM Logo
09:45 - 18:37DUB-MDW
14h 52m1 stop
KLM Logo
10:53 - 07:45MDW-DUB
14h 52m1 stop
€418KLM
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Sun, 22 Feb - Wed, 4 Mar
American Airlines Logo
07:50 - 17:00SNN-ORD
15h 10m1 stop
American Airlines Logo
17:10 - 11:30ORD-SNN
12h 20m1 stop
€532American Airlines
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Sat, 7 Feb - Sat, 14 Feb

British Airways flights from Ireland to Chicago

Our best British Airways deals on Ireland to Chicago flight tickets
British Airways
27 Feb
DUB08:50Dublin
15h 55m
1 stop
ORD18:45Chicago O'Hare Intl
7 Mar
ORD21:45Chicago O'Hare Intl
11h 15m
1 stop
DUB15:00Dublin
€398
Find similar
British Airways
31 Mar
DUB08:35Dublin
13h 20m
1 stop
ORD15:55Chicago O'Hare Intl
7 Apr
ORD21:15Chicago O'Hare Intl
11h 30m
1 stop
DUB14:45Dublin
€403
Find similar
British Airways
7 Feb
SNN07:50Shannon
12h 00m
1 stop
ORD13:50Chicago O'Hare Intl
14 Feb
ORD18:45Chicago O'Hare Intl
10h 45m
1 stop
SNN11:30Shannon
€492
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United Airlines flights from Ireland to Chicago

Our best United Airlines deals on Ireland to Chicago flight tickets
United Airlines
6 Feb
DUB09:00Dublin
12h 10m
1 stop
ORD15:10Chicago O'Hare Intl
14 Feb
ORD18:35Chicago O'Hare Intl
7h 35m
DUB08:10Dublin
€409
Find similar
United Airlines
27 Feb
DUB09:00Dublin
16h 30m
1 stop
ORD19:30Chicago O'Hare Intl
8 Mar
ORD19:35Chicago O'Hare Intl
7h 35m
DUB08:10Dublin
€410
Find similar
United Airlines
7 Feb
DUB10:40Dublin
8h 50m
ORD13:30Chicago O'Hare Intl
15 Feb
ORD18:35Chicago O'Hare Intl
7h 35m
DUB08:10Dublin
€414
Find similar

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 12 November 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

Mon 9/2

05:10-13:10

1 stop14h 00m

Chicago O'Hare Intl

Sun 15/2

18:50-17:45

1 stop16h 55m

€394

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 24/2

05:00-15:20

1 stop16h 20m

Chicago O'Hare Intl

Tue 10/3

19:35-08:10

Nonstop7h 35m

€395

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 22/11

13:10-17:00

1 stop33h 50m

Chicago O'Hare Intl

Mon 1/12

18:25-12:35

1 stop12h 10m

€396

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 8/2

05:10-15:20

1 stop16h 10m

Chicago O'Hare Intl

Sun 15/2

18:35-08:10

Nonstop7h 35m

€397

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 27/2

08:50-18:45

1 stop15h 55m

Chicago O'Hare Intl

Sat 7/3

21:45-15:00

1 stop11h 15m

€398

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 12/2

11:15-16:45

2 stops35h 30m

Chicago O'Hare Intl

Thu 26/2

19:20-18:10

2 stops16h 50m

€400

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 31/3

08:35-15:55

1 stop13h 20m

Chicago O'Hare Intl

Tue 7/4

21:15-14:45

1 stop11h 30m

€403

DublinChicago

DUB - MDW

DUBMDW

Dublin

Tue 31/3

10:00-18:08

1 stop14h 08m

Chicago Midway

Tue 7/4

14:00-07:55

1 stop11h 55m

€417

DublinChicago

DUB - MDW

DUBMDW

Dublin

Sun 22/2

09:45-18:37

1 stop14h 52m

Chicago Midway

Wed 4/3

10:53-07:45

1 stop14h 52m

€418

ShannonChicago

SNN - ORD

SNNORD

Shannon

Sat 7/2

07:50-17:00

1 stop15h 10m

Chicago O'Hare Intl

Sat 14/2

17:10-11:30

1 stop12h 20m

€532

Flights are sorted by cheapest return 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 cheapest month to fly to Chicago from Ireland is in September. Flight prices, which tend to average around €408, are often lower during this time because this is during the off-season. If you don’t want to visit Chicago in September, then you should wait until November to fly from Ireland, when ticket prices are also cheap, with an average price of €413.

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

On average, the least expensive day to fly to Chicago from Ireland is on a Friday. momondo users have found tickets for Friday departures for as low as €634. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Chicago on Tuesday is €732.

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

In the evening is the cheapest time of day to fly from Ireland to Chicago when you can find flight prices for as low as €524. Flying to Chicago in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at midday when prices are €682 on average. Flights to Chicago from Ireland at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 €520 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 €468 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?

No. A direct flight is the cheapest option for a flight between Ireland to Chicago.

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

€396

Fastest flight time

8h 05m

Direct flights

Every day

Airports in Chicago

1 airport
The best one-way flight to Chicago from Ireland in the past 72 hours is €396. The best return flight deal from Ireland to Chicago found on momondo in the last 72 hours is €594.
The fastest flight from Ireland to Chicago takes 8h 05m
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 were last updated today.

  • 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Chicago.

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

    The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted 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
United AirlinesPriceFrom €359Free CancellationRating
7.4
9,016 reviews
Search United Airlines flights
IcelandairPriceFrom €378Free CancellationRating
7.1
578 reviews
Search Icelandair flights
Aer LingusPriceFrom €391Free CancellationRating
7.2
1,370 reviews
Search Aer Lingus flights
British AirwaysPriceFrom €403Free CancellationRating
6.7
7,513 reviews
Search British Airways flights
American AirlinesPriceFrom €515Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Chicago. momondo saves you time and could save you money on your trip.

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 can track prices for Ireland to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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 25.6 km from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport