What is the cheapest airline that flies from Dublin to Illinois?

WestJet and Icelandair are the most popular carriers operating from Dublin to Illinois

How many flights depart from Dublin to Illinois on average per week?

As of August 2026, 127 flights take off from Dublin and land in Illinois each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.

Which airlines fly to Illinois?

Aer Lingus, Finnair and United Airlines are the top three most popular airlines that fly to Illinois from Dublin according to our data. Aer Lingus is the first choice among our users, with 70% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Dublin to Illinois on average per day?

As of August 2026, 18 flights take off from Dublin and land in Illinois each day. The most common flight departure time for this route is 11:00, with 79% of daily flights taking off at midday.

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

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

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

The number of operators available for flights from Dublin Airport to Illinois is 4 as of August 2026.

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

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 Dublin Airport 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.

€297 Cheap Flights from Dublin to Illinois in 2026

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Find the cheapest flights from Dublin to Illinois

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

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

8h 25mdirect

22:25 - 16:20ORD Chicago O'Hare Intl-DUB Dublin

11h 55m1 stop London Heathrow

€530Multiple Airlines

Thu, 1 Oct - Sun, 4 Oct

19:50 - 16:10DUB Dublin-ORD Chicago O'Hare Intl

26h 20m2 stops Stockholm Arlanda Kastrup Copenhagen

19:15 - 19:05ORD Chicago O'Hare Intl-DUB Dublin

17h 50m2 stops Kastrup Copenhagen Stockholm Arlanda

€530Scandinavian Airlines

Thu, 1 Oct - Sun, 4 Oct

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

8h 25mdirect

21:15 - 14:50ORD Chicago O'Hare Intl-DUB Dublin

11h 35m1 stop London Heathrow

€530Aer Lingus

Thu, 10 Sep - Mon, 14 Sep

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

8h 25mdirect

15:55 - 05:15ORD Chicago O'Hare Intl-DUB Dublin

7h 20mdirect

€531Aer Lingus

Tue, 22 Sep - Tue, 24 Nov

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

22:20 - 11:50ORD Chicago O'Hare Intl-DUB Dublin

7h 30mdirect

€535Finnair

Thu, 27 Aug - Sat, 5 Sep

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

22:20 - 11:50ORD Chicago O'Hare Intl-DUB Dublin

7h 30mdirect

€535Finnair

Sat, 29 Aug - Sat, 5 Sep

11:45 - 19:38DUB Dublin-ORD Chicago O'Hare Intl

13h 53m1 stop Charlotte Douglas

16:45 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

10h 50m1 stop Charlotte Douglas

€557American Airlines

Sat, 19 Sep - Sat, 3 Oct

11:45 - 19:38DUB Dublin-ORD Chicago O'Hare Intl

13h 53m1 stop Charlotte Douglas

21:01 - 09:35ORD Chicago O'Hare Intl-DUB Dublin

30h 34m1 stop Charlotte Douglas

€557American Airlines

Sat, 19 Sep - Fri, 2 Oct

10:40 - 13:20DUB Dublin-ORD Chicago O'Hare Intl

8h 40mdirect

18:30 - 08:10ORD Chicago O'Hare Intl-DUB Dublin

7h 40mdirect

€632United Airlines

Wed, 2 Dec - Sun, 6 Dec

10:40 - 13:20DUB Dublin-ORD Chicago O'Hare Intl

8h 40mdirect

18:30 - 08:10ORD Chicago O'Hare Intl-DUB Dublin

7h 40mdirect

€634United Airlines

Wed, 2 Dec - Sun, 6 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

22:20 - 11:50ORD Chicago O'Hare Intl-DUB Dublin

7h 30mdirect

€758Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

13:26 - 06:30ORD Chicago O'Hare Intl-DUB Dublin

11h 04m1 stop Philadelphia

€758Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

11:45 - 19:46DUB Dublin-ORD Chicago O'Hare Intl

14h 01m1 stop Charlotte Douglas

13:26 - 06:30ORD Chicago O'Hare Intl-DUB Dublin

11h 04m1 stop Philadelphia

€763Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

07:10 - 21:25DUB Dublin-ORD Chicago O'Hare Intl

20h 15m2 stops Zurich Reykjavik Keflavik Intl

19:25 - 22:10ORD Chicago O'Hare Intl-DUB Dublin

20h 45m2 stops Reykjavik Keflavik Intl Zurich

€766Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

22:20 - 11:50ORD Chicago O'Hare Intl-DUB Dublin

7h 30mdirect

€845American Airlines

Sat, 8 Aug - Mon, 7 Sep

09:30 - 11:30DUB Dublin-ORD Chicago O'Hare Intl

8h 00mdirect

11:40 - 06:30ORD Chicago O'Hare Intl-DUB Dublin

12h 50m1 stop Philadelphia

€849American Airlines

Sat, 8 Aug - Mon, 7 Sep

11:35 - 13:40DUB Dublin-ORD Chicago O'Hare Intl

8h 05mdirect

12:45 - 07:30ORD Chicago O'Hare Intl-DUB Dublin

12h 45m2 stops Washington, D.C. Reagan-National Newark

€883United Airlines

Sat, 8 Aug - Mon, 7 Sep

09:30 - 14:53DUB Dublin-ORD Chicago O'Hare Intl

11h 23m1 stop Newark

11:15 - 07:30ORD Chicago O'Hare Intl-DUB Dublin

14h 15m2 stops Washington, D.C. Reagan-National Newark

€888United Airlines

Sat, 8 Aug - Mon, 7 Sep

09:50 - 07:51DUB Dublin-ORD Chicago O'Hare Intl

28h 01m1 stop Montreal Pierre Elliott Trudeau Intl

20:20 - 09:45ORD Chicago O'Hare Intl-DUB Dublin

7h 25mdirect

€907United Airlines

Tue, 11 Aug - Mon, 17 Aug

09:20 - 09:00DUB Dublin-ORD Chicago O'Hare Intl

29h 40m1 stop Toronto Pearson Intl

20:20 - 09:45ORD Chicago O'Hare Intl-DUB Dublin

7h 25mdirect

€910United Airlines

Sat, 8 Aug - Sat, 15 Aug

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Icelandair flights from Dublin to Illinois

Our best Icelandair deals on Dublin to Illinois flight tickets

Icelandair

18 Sept

DUB12:15Dublin

12h 00m

1 stop

ORD18:15Chicago O'Hare Intl

24 Oct

ORD19:30Chicago O'Hare Intl

9h 45m

1 stop

DUB11:15Dublin

€550

Icelandair

18 Sept

DUB12:15Dublin

12h 00m

1 stop

ORD18:15Chicago O'Hare Intl

23 Oct

ORD19:25Chicago O'Hare Intl

11h 50m

1 stop

DUB13:15Dublin

€576

Icelandair

18 Sept

DUB12:15Dublin

12h 00m

1 stop

ORD18:15Chicago O'Hare Intl

23 Oct

ORD19:25Chicago O'Hare Intl

11h 50m

1 stop

DUB13:15Dublin

€577

American Airlines flights from Dublin to Illinois

Our best American Airlines deals on Dublin to Illinois flight tickets

American Airlines

27 Aug

DUB09:30Dublin

8h 00m

ORD11:30Chicago O'Hare Intl

3 Sept

ORD22:20Chicago O'Hare Intl

7h 30m

DUB11:50Dublin

€562

American Airlines

27 Aug

DUB09:30Dublin

8h 00m

ORD11:30Chicago O'Hare Intl

5 Sept

ORD22:20Chicago O'Hare Intl

7h 30m

DUB11:50Dublin

€563

American Airlines

27 Aug

DUB11:45Dublin

27h 15m

1 stop

ORD09:00Chicago O'Hare Intl

3 Sept

ORD22:20Chicago O'Hare Intl

7h 30m

DUB11:50Dublin

€567

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 1/10

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Sun 4/10

22:25-16:20

1 stop11h 55m

€530

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 1/10

19:50-16:10

2 stops26h 20m

Chicago O'Hare Intl

Sun 4/10

19:15-19:05

2 stops17h 50m

€530

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 10/9

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Mon 14/9

21:15-14:50

1 stop11h 35m

€530

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Tue 22/9

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Tue 24/11

15:55-05:15

Nonstop7h 20m

€531

Fastest return journey

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 27/8

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sat 5/9

22:20-11:50

Nonstop7h 30m

€535

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 29/8

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sat 5/9

22:20-11:50

Nonstop7h 30m

€535

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 19/9

11:45-19:38

1 stop13h 53m

Chicago O'Hare Intl

Sat 3/10

16:45-09:35

1 stop10h 50m

€557

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 19/9

11:45-19:38

1 stop13h 53m

Chicago O'Hare Intl

Fri 2/10

21:01-09:35

1 stop30h 34m

€557

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 2/12

10:40-13:20

Nonstop8h 40m

Chicago O'Hare Intl

Sun 6/12

18:30-08:10

Nonstop7h 40m

€632

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 2/12

10:40-13:20

Nonstop8h 40m

Chicago O'Hare Intl

Sun 6/12

18:30-08:10

Nonstop7h 40m

€634

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Dublin 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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Dublin is in November. Flight prices, which tend to average around €413, are often lower during this time because this is during the off-season. If you’re not able to fly to Illinois in November, then December is your next best option. Flight prices from Dublin to Illinois during December average around €530.

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

According to our data, Thursday is the cheapest day to fly to Illinois from Dublin. The lowest ticket price found for a Thursday departure recently was €637. 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, Sunday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €787.

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 Dublin to Illinois in the afternoon for as low as €606. 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 €707. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Dublin to Illinois flight route?

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

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

You are more likely to see cheaper flights to Illinois from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around €590 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 Dublin for as low as €498 on momondo.

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

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

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

Cheap Dublin to Illinois flight deals and tips

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

Best price found	€579
Fastest flight time	8h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Dublin in the past 72 hours is €579. The best return flight deal from Dublin to Illinois found on momondo in the last 72 hours is €692.

The fastest flight from Dublin to Illinois takes 8h 00m

Direct flights go from Dublin to Illinois every day.

There are 98 airports in Illinois. From Dublin there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Dublin to Illinois

When did momondo last update prices for flights from Dublin Airport to Illinois?
Prices for flights from Dublin Airport to Illinois are updated daily.
How many operators does momondo search for flights from Dublin Airport to Illinois?
The number of operators available for flights from Dublin Airport to Illinois is 4 as of August 2026.
How old do you have to be to fly from Dublin Airport to Illinois?
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 Dublin Airport 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 Dublin to Illinois?
Based on momondo bookings for flights between Dublin and Illinois, the leading plane model is Boeing 787-8 Dreamliner, making up 32.96% of the total bookings. Other popular models include Airbus A330-300 with 28.22%, Boeing 787 Dreamliner with 13.82%, and Airbus A330 with 8.36%.

Best airlines flying from Dublin to Illinois

Compare and see reviews for airlines that fly from Dublin to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom €403	Free Cancellation	Rating 7.3 1,691 reviews	Search Aer Lingus flights
Finnair	PriceFrom €407	Free Cancellation	Rating 7.7 1,427 reviews	Search Finnair flights
United Airlines	PriceFrom €410	Free Cancellation	Rating 7.4 10,077 reviews	Search United Airlines flights
American Airlines	PriceFrom €423	Free Cancellation	Rating 7.1 11,873 reviews	Search American Airlines flights

Why use momondo?

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

Finding the right flight to Illinois from Dublin 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 Illinois quick and easy, saving you time and money.

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

Flights from Dublin 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 Dublin 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 Dublin.

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

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