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Cheap flights from Ireland to Illinois from €308

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 Illinois departing on 9/3. 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 Illinois

Recent return flight deals from Ireland to Illinois

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
19:05 - 16:45
DUB
-
ORD
27h 40m1 stop
Scandinavian Airlines Logo
19:20 - 18:20
ORD
-
DUB
17h 00m1 stop
€355Scandinavian Airlines
Thu, 5 Feb - Thu, 12 Feb
Scandinavian Airlines Logo
19:05 - 16:45
DUB
-
ORD
27h 40m1 stop
Scandinavian Airlines Logo
19:20 - 18:20
ORD
-
DUB
17h 00m1 stop
€356Scandinavian Airlines
Wed, 4 Feb - Mon, 23 Feb
Multiple Airlines Logo
06:00 - 14:20
ORK
-
ORD
14h 20m1 stop
Multiple Airlines Logo
17:35 - 14:45
ORD
-
ORK
15h 10m2 stops
€454Multiple Airlines
Fri, 16 Jan - Thu, 22 Jan
KLM Logo
13:25 - 14:20
ORK
-
ORD
30h 55m1 stop
KLM Logo
16:25 - 12:55
ORD
-
ORK
14h 30m1 stop
€459KLM
Thu, 29 Jan - Wed, 4 Feb
Multiple Airlines Logo
06:00 - 17:37
ORK
-
MDW
17h 37m2 stops
Multiple Airlines Logo
18:35 - 14:45
MDW
-
ORK
14h 10m2 stops
€459Multiple Airlines
Fri, 16 Jan - Thu, 22 Jan
KLM Logo
06:00 - 16:38
ORK
-
ORD
16h 38m2 stops
KLM Logo
14:25 - 12:55
ORD
-
ORK
16h 30m2 stops
€464KLM
Thu, 29 Jan - Wed, 4 Feb
British Airways Logo
20:05 - 15:25
SNN
-
ORD
25h 20m1 stop
British Airways Logo
18:30 - 11:30
ORD
-
SNN
11h 00m1 stop
€513British Airways
Thu, 19 Feb - Thu, 26 Feb
British Airways Logo
20:05 - 13:50
SNN
-
ORD
23h 45m1 stop
British Airways Logo
13:39 - 11:30
ORD
-
SNN
15h 51m2 stops
€544British Airways
Fri, 20 Feb - Fri, 27 Feb
American Airlines Logo
07:50 - 15:25
SNN
-
ORD
13h 35m1 stop
American Airlines Logo
16:14 - 16:45
ORD
-
SNN
18h 31m2 stops
€573American Airlines
Thu, 22 Jan - Mon, 26 Jan
American Airlines Logo
07:50 - 15:25
SNN
-
ORD
13h 35m1 stop
American Airlines Logo
18:45 - 11:30
ORD
-
SNN
10h 45m1 stop
€574American Airlines
Thu, 22 Jan - Mon, 26 Jan

Scandinavian Airlines flights from Ireland to Illinois

Our best Scandinavian Airlines deals on Ireland to Illinois flight tickets
Scandinavian Airlines
5 Feb
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
12 Feb
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€355
Find similar
Scandinavian Airlines
4 Feb
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
23 Feb
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€356
Find similar
Scandinavian Airlines
5 Feb
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
12 Feb
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€357
Find similar

British Airways flights from Ireland to Illinois

Our best British Airways deals on Ireland to Illinois flight tickets
British Airways
15 Jan
DUB16:05Dublin
29h 20m
1 stop
ORD15:25Chicago O'Hare Intl
22 Jan
ORD18:25Chicago O'Hare Intl
17h 00m
1 stop
DUB17:25Dublin
€425
Find similar
British Airways
12 Jan
DUB13:00Dublin
32h 25m
1 stop
ORD15:25Chicago O'Hare Intl
18 Jan
ORD18:25Chicago O'Hare Intl
11h 50m
1 stop
DUB12:15Dublin
€426
Find similar
British Airways
20 Jan
DUB11:30Dublin
14h 48m
2 stops
ORD20:18Chicago O'Hare Intl
27 Jan
ORD17:26Chicago O'Hare Intl
9h 14m
1 stop
DUB08:40Dublin
€494
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Illinois 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 7 January 2026.
Use the filters below to find and compare flights from Ireland to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/2

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Thu 12/2

19:20-18:20

1 stop17h 00m

€355

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 4/2

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Mon 23/2

19:20-18:20

1 stop17h 00m

€356

CorkChicago

ORK - ORD

ORKORD

Cork

Fri 16/1

06:00-14:20

1 stop14h 20m

Chicago O'Hare Intl

Thu 22/1

17:35-14:45

2 stops15h 10m

€454

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 29/1

13:25-14:20

1 stop30h 55m

Chicago O'Hare Intl

Wed 4/2

16:25-12:55

1 stop14h 30m

€459

CorkChicago

ORK - MDW

ORKMDW

Cork

Fri 16/1

06:00-17:37

2 stops17h 37m

Chicago Midway

Thu 22/1

18:35-14:45

2 stops14h 10m

€459

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 29/1

06:00-16:38

2 stops16h 38m

Chicago O'Hare Intl

Wed 4/2

14:25-12:55

2 stops16h 30m

€464

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 19/2

20:05-15:25

1 stop25h 20m

Chicago O'Hare Intl

Thu 26/2

18:30-11:30

1 stop11h 00m

€513

ShannonChicago

SNN - ORD

SNNORD

Shannon

Fri 20/2

20:05-13:50

1 stop23h 45m

Chicago O'Hare Intl

Fri 27/2

13:39-11:30

2 stops15h 51m

€544

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 22/1

07:50-15:25

1 stop13h 35m

Chicago O'Hare Intl

Mon 26/1

16:14-16:45

2 stops18h 31m

€573

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 22/1

07:50-15:25

1 stop13h 35m

Chicago O'Hare Intl

Mon 26/1

18:45-11:30

1 stop10h 45m

€574

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Illinois from

How to get the cheapest flight ticket from Ireland to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Ireland is in September. Flight prices, which tend to average around €400, are often lower during this time because this is during the off-season. If you’re not able to fly to Illinois in September, then November is your next best option. Flight prices from Ireland to Illinois during November average around €403.

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

According to our data, Wednesday is the cheapest day to fly to Illinois from Ireland. The lowest ticket price found for a Wednesday departure recently was €629. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Tuesday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €729.

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

According to our data, the cheapest time of day to fly to Illinois is in the afternoon. momondo users have found flights departing from Ireland to Illinois in the afternoon for as low as €592. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around €673. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Ireland to Illinois flight route?

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

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois 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 Illinois from Ireland for as low as €450 on momondo.

What cabin class options are available on Ireland to Illinois flights?

There are 3 cabin classes available to choose from on Ireland to Illinois 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 Illinois flights?

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

Cheap Ireland to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Illinois

Best price found

€396

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Ireland in the past 72 hours is €396. The best return flight deal from Ireland to Illinois found on momondo in the last 72 hours is €530.
The fastest flight from Ireland to Illinois takes 8h 00m
Direct flights go from Ireland to Illinois every day.
There are 98 airports in Illinois. From Ireland there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

  • When did momondo last update prices for flights from Ireland to Illinois?

    Prices for flights from Ireland to Illinois are updated daily.

  • How many operators does momondo search for flights from Ireland to Illinois?

  • How old do you have to be to fly from Ireland to Illinois?

    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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Illinois.

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

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Ireland to Illinois?

Best airlines flying from Ireland to Illinois

Compare and see reviews for airlines that fly from Ireland to Illinois with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom €377Free CancellationRating
7.1
593 reviews
Search Icelandair flights
Aer LingusPriceFrom €390Free CancellationRating
7.2
1,425 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €396Free CancellationRating
7.4
9,138 reviews
Search United Airlines flights
British AirwaysPriceFrom €398Free CancellationRating
6.7
7,655 reviews
Search British Airways flights
American AirlinesPriceFrom €509Free CancellationRating
7.2
11,090 reviews
Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Ireland to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

Flights from Ireland to Illinois 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 Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Ireland.

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

Of course. momondo tracks the price of Ireland to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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