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Cheap flights from Ireland to Chicago from €293

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 31/3. 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 return flight deals from Ireland to Chicago

Enter your travel dates to find the best prices.
Finnair Logo
09:30 - 11:30
DUB
-
ORD
8h 00mdirect
Finnair Logo
22:25 - 11:50
ORD
-
DUB
7h 25mdirect
€373Finnair
Wed, 13 May - Tue, 26 May
Finnair Logo
09:30 - 11:30
DUB
-
ORD
8h 00mdirect
Finnair Logo
22:25 - 11:50
ORD
-
DUB
7h 25mdirect
€373Finnair
Wed, 13 May - Tue, 26 May
Multiple Airlines Logo
08:35 - 15:00
DUB
-
ORD
12h 25m
1 stop
Multiple Airlines Logo
22:25 - 11:50
ORD
-
DUB
7h 25mdirect
€379Multiple Airlines
Tue, 5 May - Fri, 15 May
Multiple Airlines Logo
08:35 - 17:35
DUB
-
ORD
15h 00m
1 stop
Multiple Airlines Logo
22:25 - 11:50
ORD
-
DUB
7h 25mdirect
€380Multiple Airlines
Tue, 5 May - Thu, 14 May
Multiple Airlines Logo
09:30 - 19:55
DUB
-
ORD
16h 25m
1 stop
Multiple Airlines Logo
21:15 - 14:35
ORD
-
DUB
11h 20m
1 stop
€381Multiple Airlines
Thu, 16 Apr - Wed, 22 Apr
United Airlines Logo
10:40 - 13:30
DUB
-
ORD
8h 50mdirect
United Airlines Logo
13:00 - 07:30
ORD
-
DUB
12h 30m
1 stop
€389United Airlines
Wed, 11 Feb - Sat, 21 Feb
KLM Logo
06:00 - 14:20
ORK
-
ORD
14h 20m
1 stop
KLM Logo
17:20 - 15:00
ORD
-
ORK
15h 40m
1 stop
€455KLM
Mon, 2 Feb - Sun, 8 Feb
British Airways Logo
07:50 - 15:25
SNN
-
ORD
13h 35m
1 stop
British Airways Logo
18:30 - 16:45
ORD
-
SNN
16h 15m
1 stop
€514British Airways
Thu, 5 Feb - Thu, 26 Feb
KLM Logo
13:05 - 21:36
SNN
-
ORD
14h 31m
1 stop
KLM Logo
17:00 - 11:10
ORD
-
SNN
12h 10m
1 stop
€517KLM
Fri, 29 May - Sat, 6 Jun
British Airways Logo
07:50 - 17:00
SNN
-
ORD
15h 10m
1 stop
British Airways Logo
11:40 - 11:30
ORD
-
SNN
18h 50m
2 stops
€563British Airways
Thu, 5 Mar - Mon, 9 Mar

United Airlines flights from Ireland to Chicago O'Hare Intl Airport

Our best United Airlines deals on Ireland to Chicago O'Hare Intl Airport flight tickets
United Airlines
11 Feb
DUB10:40Dublin
8h 50m
ORD13:30Chicago O'Hare Intl
21 Feb
ORD13:00Chicago O'Hare Intl
12h 30m
1 stop
DUB07:30Dublin
€389
United Airlines
9 Feb
DUB09:30Dublin
13h 26m
1 stop
ORD16:56Chicago O'Hare Intl
21 Feb
ORD14:30Chicago O'Hare Intl
11h 00m
1 stop
DUB07:30Dublin
€393
United Airlines
23 Feb
DUB09:00Dublin
12h 10m
1 stop
ORD15:10Chicago O'Hare Intl
5 Mar
ORD13:09Chicago O'Hare Intl
15h 11m
2 stops
DUB10:20Dublin
€448

Scandinavian Airlines flights from Ireland to Chicago O'Hare Intl Airport

Our best Scandinavian Airlines deals on Ireland to Chicago O'Hare Intl Airport flight tickets
Scandinavian Airlines
22 Feb
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
4 Mar
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€398
Scandinavian Airlines
12 Mar
DUB19:05Dublin
27h 50m
1 stop
ORD17:55Chicago O'Hare Intl
16 Mar
ORD20:20Chicago O'Hare Intl
34h 25m
1 stop
DUB11:45Dublin
€402
Scandinavian Airlines
9 Mar
DUB20:20Dublin
50h 25m
2 stops
ORD17:45Chicago O'Hare Intl
19 Mar
ORD20:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€404

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Chicago O'Hare Intl Airport 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 21 January 2026.
Use the filters below to find and compare flights from Ireland to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 13/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Tue 26/5

22:25-11:50

Nonstop7h 25m

€373

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 13/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Tue 26/5

22:25-11:50

Nonstop7h 25m

€373

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 5/5

08:35-15:00

1 stop12h 25m

Chicago O'Hare Intl

Fri 15/5

22:25-11:50

Nonstop7h 25m

€379

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 5/5

08:35-17:35

1 stop15h 00m

Chicago O'Hare Intl

Thu 14/5

22:25-11:50

Nonstop7h 25m

€380

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 16/4

09:30-19:55

1 stop16h 25m

Chicago O'Hare Intl

Wed 22/4

21:15-14:35

1 stop11h 20m

€381

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 11/2

10:40-13:30

Nonstop8h 50m

Chicago O'Hare Intl

Sat 21/2

13:00-07:30

1 stop12h 30m

€389

CorkChicago

ORK - ORD

ORKORD

Cork

Mon 2/2

06:00-14:20

1 stop14h 20m

Chicago O'Hare Intl

Sun 8/2

17:20-15:00

1 stop15h 40m

€455

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 5/2

07:50-15:25

1 stop13h 35m

Chicago O'Hare Intl

Thu 26/2

18:30-16:45

1 stop16h 15m

€514

ShannonChicago

SNN - ORD

SNNORD

Shannon

Fri 29/5

13:05-21:36

1 stop14h 31m

Chicago O'Hare Intl

Sat 6/6

17:00-11:10

1 stop12h 10m

€517

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 5/3

07:50-17:00

1 stop15h 10m

Chicago O'Hare Intl

Mon 9/3

11:40-11:30

2 stops18h 50m

€563

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 O'Hare Intl Airport

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 O'Hare Intl Airport?

In general, November is the cheapest month to fly from Ireland to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €407. If you are unable to visit Chicago O'Hare Intl Airport during the month of November, then departing from Ireland during the month September is also very affordable. Most momondo users find prices during this month for around €417.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

On average, the least expensive day to fly to Chicago O'Hare Intl Airport from Ireland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as €627. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Chicago O'Hare Intl Airport is Tuesday, with ticket prices averaging around €726.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Our data shows that the cheapest Ireland to Chicago O'Hare Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Chicago O'Hare Intl Airport in the afternoon for as low as €597. Flights to Chicago O'Hare Intl Airport are more costly in the morning, with an average ticket price of €673. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ireland to Chicago O'Hare Intl flight route?

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

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around €526 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Ireland for as low as €451 on momondo.

What cabin class options are available on Ireland to Chicago O'Hare Intl flights?

There are 3 cabin classes available to choose from on Ireland to Chicago O'Hare Intl 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 O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Ireland to Chicago O'Hare Intl Airport.

Cheap Ireland to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Chicago O'Hare Intl Airport

Best price found

€670

Fastest flight time

8h 00m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Ireland in the past 72 hours is €670. The best return flight deal from Ireland to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is €550.
The fastest flight from Ireland to Chicago O'Hare Intl Airport takes 8h 00m
Direct flights go from Ireland to Chicago O'Hare Intl Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Ireland to Chicago O'Hare Intl Airport?

    Prices for flights from Ireland to Chicago O'Hare Intl Airport refresh daily.

  • How many operators does momondo search for flights from Ireland to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Ireland to Chicago O'Hare Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport 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 licence 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 O'Hare Intl Airport?

Best airlines flying from Ireland to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Ireland to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom €373Free CancellationRating
7.1
602 reviews
Search Icelandair flights
United AirlinesPriceFrom €396Free CancellationRating
7.4
9,188 reviews
Search United Airlines flights
Aer LingusPriceFrom €397Free CancellationRating
7.2
1,437 reviews
Search Aer Lingus flights
British AirwaysPriceFrom €398Free CancellationRating
6.7
7,690 reviews
Search British Airways flights
American AirlinesPriceFrom €509Free CancellationRating
7.2
11,169 reviews
Search American Airlines flights

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Rosemont
Oakbrook Terrace
Elk Grove Village
Crystal Lake

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Chicago . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Chicago from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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 not ready to book a flight from Ireland to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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