How does KAYAK find such low prices on flights from Illinois to Dublin?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Dublin.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Dublin?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Dublin?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Dublin with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Dublin?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dublin from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

€174 CHEAP FLIGHTS from Illinois to Dublin

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Flight Deals

Cheap Flights from Illinois to Dublin

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

Direct

Recent return flight deals from Illinois to Dublin

Sat, 9 Jan - Tue, 19 Jan

16:05 - 05:10STL Lambert-St Louis-DUB Dublin

31h 05m1 stop Toronto Pearson Intl

13:00 - 15:26DUB Dublin-STL Lambert-St Louis

32h 26m1 stop Toronto Pearson Intl

€289Aer Lingus

Tue, 8 Sep - Thu, 17 Sep

08:55 - 05:10STL Lambert-St Louis-DUB Dublin

14h 15m1 stop Toronto Pearson Intl

13:20 - 20:20DUB Dublin-STL Lambert-St Louis

13h 00m1 stop Toronto Pearson Intl

€293Aer Lingus

Mon, 9 Nov - Wed, 18 Nov

16:05 - 05:10STL Lambert-St Louis-DUB Dublin

31h 05m1 stop Toronto Pearson Intl

13:00 - 15:26DUB Dublin-STL Lambert-St Louis

32h 26m1 stop Toronto Pearson Intl

€302Aer Lingus

Mon, 26 Oct - Wed, 4 Nov

16:05 - 05:10STL Lambert-St Louis-DUB Dublin

32h 05m1 stop Toronto Pearson Intl

13:00 - 15:26DUB Dublin-STL Lambert-St Louis

32h 26m1 stop Toronto Pearson Intl

€311Aer Lingus

Mon, 7 Sep - Wed, 16 Sep

08:55 - 05:10STL Lambert-St Louis-DUB Dublin

14h 15m1 stop Toronto Pearson Intl

13:20 - 14:00DUB Dublin-STL Lambert-St Louis

30h 40m1 stop Toronto Pearson Intl

€315Aer Lingus

Tue, 8 Sep - Tue, 15 Sep

08:55 - 05:10STL Lambert-St Louis-DUB Dublin

14h 15m1 stop Toronto Pearson Intl

13:20 - 20:20DUB Dublin-STL Lambert-St Louis

13h 00m1 stop Toronto Pearson Intl

€318Aer Lingus

Tue, 8 Sep - Tue, 15 Sep

08:55 - 05:10STL Lambert-St Louis-DUB Dublin

14h 15m1 stop Toronto Pearson Intl

13:20 - 20:20DUB Dublin-STL Lambert-St Louis

13h 00m1 stop Toronto Pearson Intl

€321Aer Lingus

Mon, 15 Feb - Wed, 24 Feb

09:46 - 05:10ORD Chicago O'Hare Intl-DUB Dublin

13h 24m1 stop Toronto Pearson Intl

13:00 - 19:58DUB Dublin-ORD Chicago O'Hare Intl

12h 58m1 stop Toronto Pearson Intl

€322Aer Lingus

Mon, 30 Nov - Sat, 5 Dec

09:42 - 05:10ORD Chicago O'Hare Intl-DUB Dublin

13h 28m1 stop Toronto Pearson Intl

13:00 - 19:58DUB Dublin-ORD Chicago O'Hare Intl

12h 58m1 stop Toronto Pearson Intl

€324Aer Lingus

Sun, 29 Nov - Sat, 5 Dec

09:42 - 05:10ORD Chicago O'Hare Intl-DUB Dublin

13h 28m1 stop Toronto Pearson Intl

13:00 - 19:41DUB Dublin-ORD Chicago O'Hare Intl

12h 41m1 stop Toronto Pearson Intl

€324Aer Lingus

Recent last minute flight deals from Illinois to Dublin

Tue, 25 Aug - Tue, 1 Sep

21:00 - 10:35ORD Chicago O'Hare Intl-DUB Dublin

7h 35mdirect

11:35 - 14:00DUB Dublin-ORD Chicago O'Hare Intl

8h 25mdirect

€593Aer Lingus

Tue, 25 Aug - Thu, 3 Sep

15:45 - 05:10ORD Chicago O'Hare Intl-DUB Dublin

7h 25mdirect

13:20 - 20:20DUB Dublin-ORD Chicago O'Hare Intl

13h 00m1 stop Toronto Pearson Intl

€595Aer Lingus

Tue, 25 Aug - Fri, 4 Sep

15:45 - 05:10ORD Chicago O'Hare Intl-DUB Dublin

7h 25mdirect

13:20 - 20:20DUB Dublin-ORD Chicago O'Hare Intl

13h 00m1 stop Toronto Pearson Intl

€643Aer Lingus

Tue, 25 Aug - Tue, 1 Sep

22:30 - 22:15ORD Chicago O'Hare Intl-DUB Dublin

17h 45m1 stop Frankfurt am Main

11:35 - 14:00DUB Dublin-ORD Chicago O'Hare Intl

8h 25mdirect

€654Multiple Airlines

Wed, 26 Aug - Fri, 4 Sep

16:40 - 00:05ORD Chicago O'Hare Intl-DUB Dublin

25h 25m1 stop Lisbon Humberto Delgado

05:30 - 16:00DUB Dublin-ORD Chicago O'Hare Intl

16h 30m1 stop Lisbon Humberto Delgado

€660TAP AIR PORTUGAL

Wed, 26 Aug - Wed, 2 Sep

16:40 - 00:05ORD Chicago O'Hare Intl-DUB Dublin

25h 25m1 stop Lisbon Humberto Delgado

10:45 - 12:40DUB Dublin-ORD Chicago O'Hare Intl

31h 55m1 stop Lisbon Humberto Delgado

€660TAP AIR PORTUGAL

Wed, 26 Aug - Wed, 2 Sep

16:40 - 00:05ORD Chicago O'Hare Intl-DUB Dublin

25h 25m1 stop Lisbon Humberto Delgado

10:45 - 12:40DUB Dublin-ORD Chicago O'Hare Intl

31h 55m1 stop Lisbon Humberto Delgado

€660TAP AIR PORTUGAL

Thu, 27 Aug - Thu, 3 Sep

19:45 - 00:05ORD Chicago O'Hare Intl-DUB Dublin

22h 20m1 stop Lisbon Humberto Delgado

18:50 - 16:00DUB Dublin-ORD Chicago O'Hare Intl

27h 10m1 stop Lisbon Humberto Delgado

€662TAP AIR PORTUGAL

Thu, 27 Aug - Fri, 4 Sep

19:45 - 00:05ORD Chicago O'Hare Intl-DUB Dublin

22h 20m1 stop Lisbon Humberto Delgado

05:30 - 16:00DUB Dublin-ORD Chicago O'Hare Intl

16h 30m1 stop Lisbon Humberto Delgado

€672TAP AIR PORTUGAL

Thu, 27 Aug - Thu, 10 Sep

19:45 - 00:05ORD Chicago O'Hare Intl-DUB Dublin

22h 20m1 stop Lisbon Humberto Delgado

18:50 - 16:00DUB Dublin-ORD Chicago O'Hare Intl

27h 10m1 stop Lisbon Humberto Delgado

€672TAP AIR PORTUGAL

Useful Info

Low season	January
High season	August
Cheapest flight	€174

Best time to beat the crowds (29% less expensive on average)

Most popular time to fly (1% more expensive on average)

Flight from Chicago O'Hare Airport to Dublin

How does KAYAK find such low prices on flights from Illinois to Dublin?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Dublin.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Dublin?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Dublin?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Dublin with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Dublin?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dublin from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Athlone

Cavan

Gorey

Dundalk

Swords

Naas

Wicklow

Kildare

Tullamore

Mullingar

Bray

Enniscorthy

Drogheda

Carlingford

Arklow

Castleknock

Maynooth

Malahide

Thurles

Leixlip

Everything you need to know for your flight to Dublin

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Information on the airport you'll fly into in Dublin

Dublin (DUB)

€174 Find Cheap Flights from Illinois to Dublin – Compare and Save

Cheap Flights from Illinois to Dublin

Recent return flight deals from Illinois to Dublin

Recent one-way flight deals from Illinois to Dublin

Recent last minute flight deals from Illinois to Dublin

Recent direct flight deals from Illinois to Dublin

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Low season

High season

Cheapest flight

FAQs for booking flights from Illinois to Dublin

Travelling to a place near Dublin?

Everything you need to know for your flight to Dublin

Information on the airport you'll fly into in Dublin

Cabin class types available on flights to Illinois

Complete your trip to Dublin with a hotel stay or car hire

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Choose which airport to fly into in Dublin

Find deals for your return flight