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Cheap flights from Ireland to Chicago from £237

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 4/11. 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

Icelandair Logo
12:15 - 21:15DUB-ORD
15h 00m1 stop
Icelandair Logo
19:25 - 13:15ORD-DUB
11h 50m1 stop
£281Icelandair
Find Deal
Wed, 10 Sep - Wed, 1 Oct
Icelandair Logo
11:30 - 17:20DUB-ORD
11h 50m1 stop
Icelandair Logo
18:30 - 10:15ORD-DUB
9h 45m1 stop
£281Icelandair
Find Deal
Mon, 10 Nov - Sun, 23 Nov
Icelandair Logo
12:15 - 21:15DUB-ORD
15h 00m1 stop
Icelandair Logo
19:25 - 13:15ORD-DUB
11h 50m1 stop
£284Icelandair
Find Deal
Wed, 10 Sep - Wed, 1 Oct
Scandinavian Airlines Logo
10:45 - 17:45DUB-ORD
36h 00m2 stops
Scandinavian Airlines Logo
19:20 - 11:45ORD-DUB
34h 25m1 stop
£293Scandinavian Airlines
Find Deal
Fri, 31 Oct - Mon, 3 Nov
Scandinavian Airlines Logo
12:30 - 17:45DUB-ORD
34h 15m1 stop
Scandinavian Airlines Logo
19:20 - 11:45ORD-DUB
34h 25m1 stop
£304Scandinavian Airlines
Find Deal
Fri, 31 Oct - Mon, 3 Nov
British Airways Logo
12:45 - 18:15DUB-ORD
11h 30m1 stop
British Airways Logo
19:15 - 11:55ORD-DUB
10h 40m1 stop
£338British Airways
Find Deal
Thu, 16 Oct - Sun, 19 Oct
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
£343Aer Lingus
Find Deal
Sat, 20 Sep - Sat, 4 Oct
British Airways Logo
08:35 - 18:15DUB-ORD
15h 40m1 stop
British Airways Logo
22:35 - 07:40ORD-DUB
27h 05m1 stop
£348British Airways
Find Deal
Fri, 3 Oct - Thu, 9 Oct
KLM Logo
10:00 - 17:37DUB-MDW
13h 37m1 stop
KLM Logo
12:43 - 08:45MDW-DUB
14h 02m1 stop
£358KLM
Find Deal
Fri, 5 Sep - Thu, 11 Sep
KLM Logo
12:00 - 17:37DUB-MDW
11h 37m1 stop
KLM Logo
13:43 - 07:55MDW-DUB
12h 12m1 stop
£362KLM
Find Deal
Mon, 1 Sep - Tue, 16 Sep

Scandinavian Airlines flights from Ireland to Chicago

Our best Scandinavian Airlines deals on Ireland to Chicago flight tickets
Scandinavian Airlines
31 Oct
DUB10:45Dublin
36h 00m
2 stops
ORD17:45Chicago O'Hare Intl
3 Nov
ORD19:20Chicago O'Hare Intl
34h 25m
1 stop
DUB11:45Dublin
£293
Find similar
Scandinavian Airlines
31 Oct
DUB12:30Dublin
34h 15m
1 stop
ORD17:45Chicago O'Hare Intl
3 Nov
ORD19:20Chicago O'Hare Intl
34h 25m
1 stop
DUB11:45Dublin
£304
Find similar
Scandinavian Airlines
29 Oct
DUB19:05Dublin
28h 40m
1 stop
ORD18:45Chicago O'Hare Intl
3 Nov
ORD19:20Chicago O'Hare Intl
34h 25m
1 stop
DUB11:45Dublin
£306
Find similar

British Airways flights from Ireland to Chicago

Our best British Airways deals on Ireland to Chicago flight tickets
British Airways
16 Oct
DUB12:45Dublin
11h 30m
1 stop
ORD18:15Chicago O'Hare Intl
19 Oct
ORD19:15Chicago O'Hare Intl
10h 40m
1 stop
DUB11:55Dublin
£338
Find similar
British Airways
3 Oct
DUB08:35Dublin
15h 40m
1 stop
ORD18:15Chicago O'Hare Intl
9 Oct
ORD22:35Chicago O'Hare Intl
27h 05m
1 stop
DUB07:40Dublin
£348
Find similar
British Airways
13 Sept
DUB08:35Dublin
13h 20m
1 stop
ORD15:55Chicago O'Hare Intl
26 Sept
ORD22:35Chicago O'Hare Intl
14h 45m
1 stop
DUB19:20Dublin
£350
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 279,928 searches. Data last updated 2 August 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 10/9

12:15-21:15

1 stop15h 00m

Chicago O'Hare Intl

Wed 1/10

19:25-13:15

1 stop11h 50m

£281

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 10/11

11:30-17:20

1 stop11h 50m

Chicago O'Hare Intl

Sun 23/11

18:30-10:15

1 stop9h 45m

£281

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/9

12:15-21:15

1 stop15h 00m

Chicago O'Hare Intl

Wed 1/10

19:25-13:15

1 stop11h 50m

£284

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 31/10

10:45-17:45

2 stops36h 00m

Chicago O'Hare Intl

Mon 3/11

19:20-11:45

1 stop34h 25m

£293

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 31/10

12:30-17:45

1 stop34h 15m

Chicago O'Hare Intl

Mon 3/11

19:20-11:45

1 stop34h 25m

£304

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 16/10

12:45-18:15

1 stop11h 30m

Chicago O'Hare Intl

Sun 19/10

19:15-11:55

1 stop10h 40m

£338

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 20/9

16:40-19:00

Nonstop8h 20m

Chicago O'Hare Intl

Sat 4/10

15:45-05:10

Nonstop7h 25m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 3/10

08:35-18:15

1 stop15h 40m

Chicago O'Hare Intl

Thu 9/10

22:35-07:40

1 stop27h 05m

£348

DublinChicago

DUB - MDW

DUBMDW

Dublin

Fri 5/9

10:00-17:37

1 stop13h 37m

Chicago Midway

Thu 11/9

12:43-08:45

1 stop14h 02m

£358

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 1/9

12:00-17:37

1 stop11h 37m

Chicago Midway

Tue 16/9

13:43-07:55

1 stop12h 12m

£362

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 November. Flight prices, which tend to average around £387, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Chicago from Ireland during January instead. Flights to Chicago in January, while not as cheap as those in November, still average around £390.

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 £538. 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 Saturday, with ticket prices averaging around £610.

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 £489 when looking at flights departing in the evening. Flights at midday are often more expensive, with an average ticket price of £604.

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 £454 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 £390 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 37% 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

£237

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Chicago

2 airports
The best one-way flight to Chicago from Ireland in the past 72 hours is £237. The best return flight deal from Ireland to Chicago found on momondo in the last 72 hours is £281.
The fastest flight from Ireland to Chicago takes 8h 00m
Direct flights go from Ireland to Chicago every day.
There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)
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?

  • 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?

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 £262Free CancellationRating
7.0
520 reviews
Search Icelandair flights
British AirwaysPriceFrom £293Free CancellationRating
6.6
7,224 reviews
Search British Airways flights
United AirlinesPriceFrom £296Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights
Aer LingusPriceFrom £312Free CancellationRating
7.1
1,193 reviews
Search Aer Lingus flights
FinnairPriceFrom £373Free CancellationRating
7.6
1,317 reviews
Search Finnair flights
IberiaPriceFrom £382Free CancellationRating
7.0
2,862 reviews
Search Iberia flights
American AirlinesPriceFrom £496Free CancellationRating
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.

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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