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Cheap flights from Illinois to Dublin from €173

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Dublin departing on 7/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Dublin

Cheap return flights

Air Canada Logo
18:43 - 06:10STL-DUB
30h 27m2 stops
Air Canada Logo
09:00 - 15:46DUB-STL
36h 46m2 stops
€424Air Canada
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Mon, 27 Oct - Wed, 12 Nov
Air Canada Logo
18:43 - 06:10STL-DUB
30h 27m2 stops
Air Canada Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€425Air Canada
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Mon, 27 Oct - Wed, 12 Nov
Multiple Airlines Logo
18:28 - 16:25ORD-DUB
16h 57m2 stops
Multiple Airlines Logo
05:10 - 14:55DUB-ORD
15h 45m2 stops
€427Multiple Airlines
Find Deal
Mon, 27 Oct - Wed, 5 Nov
Scandinavian Airlines Logo
20:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
19:00 - 16:10DUB-ORD
50h 10m2 stops
€427Scandinavian Airlines
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Thu, 19 Mar - Sat, 28 Mar
Delta Logo
10:35 - 08:05MDW-DUB
16h 30m2 stops
Delta Logo
05:55 - 18:08DUB-MDW
17h 13m2 stops
€428Delta
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Wed, 11 Mar - Wed, 18 Mar
Delta Logo
10:30 - 08:05ORD-DUB
16h 35m2 stops
Delta Logo
13:25 - 23:58DUB-ORD
16h 33m2 stops
€428Delta
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Wed, 29 Oct - Thu, 6 Nov
United Airlines Logo
13:00 - 08:10STL-DUB
13h 10m1 stop
United Airlines Logo
09:00 - 16:28DUB-STL
37h 28m2 stops
€428United Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Scandinavian Airlines Logo
20:20 - 18:10ORD-DUB
16h 50m2 stops
Scandinavian Airlines Logo
19:00 - 16:10DUB-ORD
50h 10m2 stops
€429Scandinavian Airlines
Find Deal
Thu, 19 Mar - Sat, 28 Mar
United Airlines Logo
06:00 - 10:20ORD-DUB
23h 20m1 stop
United Airlines Logo
09:00 - 09:13DUB-ORD
30h 13m1 stop
€430United Airlines
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Mon, 27 Oct - Sun, 9 Nov
Multiple Airlines Logo
06:40 - 11:05ORD-DUB
22h 25m2 stops
Multiple Airlines Logo
04:15 - 14:45DUB-ORD
16h 30m1 stop
€439Multiple Airlines
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Mon, 20 Oct - Sat, 8 Nov

Aer Lingus flights from Illinois to Dublin

Our best Aer Lingus deals on Illinois to Dublin flight tickets
Aer Lingus
7 Nov
ORD19:40Chicago O'Hare Intl
7h 20m
DUB09:00Dublin
14 Nov
DUB15:20Dublin
8h 35m
ORD17:55Chicago O'Hare Intl
€432
Find similar
Aer Lingus
16 Nov
ORD19:40Chicago O'Hare Intl
7h 20m
DUB09:00Dublin
22 Nov
DUB11:30Dublin
8h 30m
ORD14:00Chicago O'Hare Intl
€435
Find similar
Aer Lingus
23 Nov
ORD15:50Chicago O'Hare Intl
7h 20m
DUB05:10Dublin
2 Dec
DUB11:30Dublin
8h 30m
ORD14:00Chicago O'Hare Intl
€447
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United Airlines flights from Illinois to Dublin

Our best United Airlines deals on Illinois to Dublin flight tickets
United Airlines
3 Dec
STL13:00Lambert-St Louis
13h 10m
1 stop
DUB08:10Dublin
10 Dec
DUB09:00Dublin
37h 28m
2 stops
STL16:28Lambert-St Louis
€428
Find similar
United Airlines
27 Oct
ORD06:00Chicago O'Hare Intl
23h 20m
1 stop
DUB10:20Dublin
9 Nov
DUB09:00Dublin
30h 13m
1 stop
ORD09:13Chicago O'Hare Intl
€430
Find similar
United Airlines
3 Nov
ORD18:05Chicago O'Hare Intl
31h 05m
2 stops
DUB07:10Dublin
16 Nov
DUB09:00Dublin
35h 25m
2 stops
ORD14:25Chicago O'Hare Intl
€431
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momondo Fare Finder

 
Customise your flight search to find flights from Illinois to Dublin 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 23 September 2025.
Use the filters below to find and compare flights from Illinois to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 27/10

18:43-06:10

2 stops30h 27m

Dublin

Wed 12/11

09:00-15:46

2 stops36h 46m

€424

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 27/10

18:43-06:10

2 stops30h 27m

Dublin

Wed 12/11

09:00-15:29

1 stop12h 29m

€425

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 27/10

18:28-16:25

2 stops16h 57m

Dublin

Wed 5/11

05:10-14:55

2 stops15h 45m

€427

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 19/3

20:20-18:20

1 stop17h 00m

Dublin

Sat 28/3

19:00-16:10

2 stops50h 10m

€427

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Wed 11/3

10:35-08:05

2 stops16h 30m

Dublin

Wed 18/3

05:55-18:08

2 stops17h 13m

€428

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 29/10

10:30-08:05

2 stops16h 35m

Dublin

Thu 6/11

13:25-23:58

2 stops16h 33m

€428

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 3/12

13:00-08:10

1 stop13h 10m

Dublin

Wed 10/12

09:00-16:28

2 stops37h 28m

€428

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 19/3

20:20-18:10

2 stops16h 50m

Dublin

Sat 28/3

19:00-16:10

2 stops50h 10m

€429

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 27/10

06:00-10:20

1 stop23h 20m

Dublin

Sun 9/11

09:00-09:13

1 stop30h 13m

€430

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 20/10

06:40-11:05

2 stops22h 25m

Dublin

Sat 8/11

04:15-14:45

1 stop16h 30m

€439

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 Dublin from

How to get the cheapest flight ticket from Illinois to Dublin

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 Dublin?

If you aren’t able to travel during the month of February, then book flights to Dublin from Illinois during January instead. Flights to Dublin in January, while not as cheap as those in February, still average around €476.

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

Our data shows that Thursday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €551. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around €886. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

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

Our data shows that the cheapest Illinois to Dublin flights are usually those with departure times in the evening. Our users have found flights to Dublin in the evening for as low as €621. If you have a flexible travel schedule, then try to avoid flying at midday when prices are €773 on average. Flights to Dublin from Illinois at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Illinois to Dublin flight route?

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

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

You are more likely to see cheaper flights to Dublin from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €597 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Illinois for as low as €555 on momondo.

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

There is only 1 cabin class available to choose from on Illinois to Dublin 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 Illinois to Dublin flights?

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

Cheap Illinois to Dublin flight deals and tips

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

Best price found

€634

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Dublin

1 airport
The best flight deal from Illinois to Dublin found on momondo in the last 72 hours is €634
The fastest flight from Illinois to Dublin takes 7h 20m
Direct flights go from Illinois to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
Search flight deals

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

    Prices for flights from Illinois to Dublin Airport are updated daily.

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

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

    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 Illinois to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents required for your trip to Dublin Airport 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 Dublin Airport. 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 Illinois to Dublin?

Best airlines flying from Illinois to Dublin

Compare and see reviews for airlines that fly from Illinois to Dublin with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €451Free CancellationRating
7.2
1,296 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €551Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Wicklow
Cavan
Swords
Dundalk
Tullamore
Enniscorthy
Kildare
Naas
Mullingar
Bray
Maynooth
Arklow
Drogheda
Malahide
Carlingford
Portmarnock
Castleknock
Leixlip

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Dublin from Illinois with this policy.

How can momondo help me find flights from Illinois to Dublin?

Once you have performed a search for Illinois to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Illinois to Dublin 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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