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Cheap flights from Ireland to Chicago from €286

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 20/9. 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

Scandinavian Airlines Logo
11:30 - 18:45DUB-ORD
36h 15m2 stops
Scandinavian Airlines Logo
19:20 - 19:35ORD-DUB
18h 15m2 stops
€381Scandinavian Airlines
Find Deal
Wed, 29 Oct - Sun, 2 Nov
Logo
12:55 - 21:21DUB-ORD
14h 26m1 stop
Logo
18:30 - 12:35ORD-DUB
12h 05m1 stop
€384
Find Deal
Mon, 3 Nov - Mon, 10 Nov
American Airlines Logo
10:55 - 17:45DUB-ORD
11h 50m1 stop
American Airlines Logo
17:10 - 10:00ORD-DUB
10h 50m1 stop
€385American Airlines
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Sat, 1 Nov - Fri, 7 Nov
American Airlines Logo
08:45 - 15:55DUB-ORD
13h 10m1 stop
American Airlines Logo
22:35 - 17:05ORD-DUB
12h 30m1 stop
€389American Airlines
Find Deal
Mon, 13 Oct - Tue, 21 Oct
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
€391Aer Lingus
Find Deal
Mon, 13 Oct - Wed, 22 Oct
United Airlines Logo
09:20 - 20:04DUB-ORD
16h 44m1 stop
United Airlines Logo
18:35 - 08:10ORD-DUB
7h 35mdirect
€396United Airlines
Find Deal
Fri, 24 Oct - Thu, 13 Nov
United Airlines Logo
09:00 - 15:10DUB-ORD
12h 10m1 stop
United Airlines Logo
18:35 - 08:10ORD-DUB
7h 35mdirect
€398United Airlines
Find Deal
Mon, 3 Nov - Sun, 9 Nov
Aer Lingus Logo
11:35 - 14:00DUB-ORD
8h 25mdirect
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
€399Aer Lingus
Find Deal
Wed, 15 Oct - Sun, 19 Oct
British Airways Logo
08:50 - 23:53DUB-ORD
20h 03m2 stops
British Airways Logo
17:10 - 12:25ORD-DUB
13h 15m1 stop
€414British Airways
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Mon, 27 Oct - Thu, 6 Nov
British Airways Logo
08:45 - 14:40DUB-ORD
11h 55m1 stop
British Airways Logo
22:45 - 14:25ORD-DUB
10h 40m1 stop
€431British Airways
Find Deal
Mon, 20 Oct - Wed, 29 Oct

Scandinavian Airlines flights from Ireland to Chicago

Our best Scandinavian Airlines deals on Ireland to Chicago flight tickets
Scandinavian Airlines
29 Oct
DUB11:30Dublin
36h 15m
2 stops
ORD18:45Chicago O'Hare Intl
2 Nov
ORD19:20Chicago O'Hare Intl
18h 15m
2 stops
DUB19:35Dublin
€381
Find similar
Scandinavian Airlines
30 Oct
DUB11:15Dublin
35h 30m
2 stops
ORD17:45Chicago O'Hare Intl
3 Nov
ORD19:20Chicago O'Hare Intl
33h 25m
2 stops
DUB10:45Dublin
€386
Find similar
Scandinavian Airlines
25 Oct
DUB20:05Dublin
27h 50m
2 stops
ORD17:55Chicago O'Hare Intl
12 Nov
ORD19:20Chicago O'Hare Intl
56h 10m
2 stops
DUB09:30Dublin
€424
Find similar

United Airlines flights from Ireland to Chicago

Our best United Airlines deals on Ireland to Chicago flight tickets
United Airlines
24 Oct
DUB09:20Dublin
16h 44m
1 stop
ORD20:04Chicago O'Hare Intl
13 Nov
ORD18:35Chicago O'Hare Intl
7h 35m
DUB08:10Dublin
€396
Find similar
United Airlines
22 Sept
DUB09:20Dublin
16h 51m
1 stop
ORD20:11Chicago O'Hare Intl
4 Oct
ORD20:20Chicago O'Hare Intl
7h 25m
DUB09:45Dublin
€397
Find similar
United Airlines
3 Nov
DUB09:00Dublin
12h 10m
1 stop
ORD15:10Chicago O'Hare Intl
9 Nov
ORD18:35Chicago O'Hare Intl
7h 35m
DUB08:10Dublin
€398
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 13 September 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

Wed 29/10

11:30-18:45

2 stops36h 15m

Chicago O'Hare Intl

Sun 2/11

19:20-19:35

2 stops18h 15m

€381

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/11

12:55-21:21

1 stop14h 26m

Chicago O'Hare Intl

Mon 10/11

18:30-12:35

1 stop12h 05m

€384

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 1/11

10:55-17:45

1 stop11h 50m

Chicago O'Hare Intl

Fri 7/11

17:10-10:00

1 stop10h 50m

€385

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 13/10

08:45-15:55

1 stop13h 10m

Chicago O'Hare Intl

Tue 21/10

22:35-17:05

1 stop12h 30m

€389

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 13/10

16:40-19:00

Nonstop8h 20m

Chicago O'Hare Intl

Wed 22/10

15:45-05:10

Nonstop7h 25m

€391

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 24/10

09:20-20:04

1 stop16h 44m

Chicago O'Hare Intl

Thu 13/11

18:35-08:10

Nonstop7h 35m

€396

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/11

09:00-15:10

1 stop12h 10m

Chicago O'Hare Intl

Sun 9/11

18:35-08:10

Nonstop7h 35m

€398

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 15/10

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Sun 19/10

15:45-05:10

Nonstop7h 25m

€399

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 27/10

08:50-23:53

2 stops20h 03m

Chicago O'Hare Intl

Thu 6/11

17:10-12:25

1 stop13h 15m

€414

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 20/10

08:45-14:40

1 stop11h 55m

Chicago O'Hare Intl

Wed 29/10

22:45-14:25

1 stop10h 40m

€431

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 January. Flight prices, which tend to average around €424, are often lower during this time because this is during the off-season. If you don’t want to visit Chicago in January, then you should wait until November to fly from Ireland, when ticket prices are also cheap, with an average price of €434.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as €613. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Chicago on Sunday is €689.

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 €517. 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 €676 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 €516 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 €456 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 57% 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

€688

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Chicago

1 airport
The best one-way flight to Chicago from Ireland in the past 72 hours is €688. The best return flight deal from Ireland to Chicago found on momondo in the last 72 hours is €464.
The fastest flight from Ireland to Chicago takes 8h 00m
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
IcelandairPriceFrom €351Free CancellationRating
7.0
546 reviews
Search Icelandair flights
United AirlinesPriceFrom €354Free CancellationRating
7.4
8,934 reviews
Search United Airlines flights
Aer LingusPriceFrom €380Free CancellationRating
7.2
1,271 reviews
Search Aer Lingus flights
American AirlinesPriceFrom €416Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom €438Free CancellationRating
6.6
7,361 reviews
Search British Airways 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