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Cheap flights from Dublin to Chicago from $438

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Chicago departing on 10/28. 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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Cheap round-trip flights

Scandinavian Airlines Logo
7:05 pm - 9:05 pmDUB-ORD
31h 00m1 stop
Scandinavian Airlines Logo
7:20 pm - 11:45 amORD-DUB
34h 25m1 stop
$438Scandinavian Airlines
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Tue, Oct 28 - Wed, Nov 5
Scandinavian Airlines Logo
7:05 pm - 5:45 pmDUB-ORD
27h 40m1 stop
Scandinavian Airlines Logo
7:20 pm - 11:45 amORD-DUB
34h 25m1 stop
$439Scandinavian Airlines
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Thu, Oct 30 - Wed, Nov 5
British Airways Logo
10:45 am - 5:00 pmDUB-ORD
12h 15m1 stop
British Airways Logo
8:40 pm - 7:40 pmORD-DUB
17h 00m1 stop
$442British Airways
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Sun, Nov 2 - Sun, Nov 9
British Airways Logo
8:45 am - 2:40 pmDUB-ORD
11h 55m1 stop
British Airways Logo
5:40 pm - 11:55 amORD-DUB
12h 15m1 stop
$445British Airways
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Mon, Oct 13 - Tue, Oct 21
Lufthansa Logo
5:10 am - 8:05 pmDUB-ORD
20h 55m1 stop
Lufthansa Logo
9:50 pm - 5:10 pmORD-DUB
13h 20m1 stop
$449Lufthansa
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Wed, Nov 5 - Tue, Nov 11
Aer Lingus Logo
11:30 am - 2:00 pmDUB-ORD
8h 30mnonstop
Aer Lingus Logo
7:40 pm - 9:00 amORD-DUB
7h 20mnonstop
$454Aer Lingus
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Mon, Nov 3 - Fri, Nov 7
Lufthansa Logo
5:10 am - 4:20 pmDUB-ORD
16h 10m1 stop
Lufthansa Logo
6:35 pm - 8:10 amORD-DUB
7h 35mnonstop
$455Lufthansa
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Sun, Nov 2 - Sun, Nov 9
Aer Lingus Logo
11:35 am - 2:00 pmDUB-ORD
8h 25mnonstop
Aer Lingus Logo
9:15 pm - 10:40 amORD-DUB
7h 25mnonstop
$462Aer Lingus
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Wed, Oct 15 - Wed, Oct 22
United Airlines Logo
9:20 am - 3:00 pmDUB-ORD
35h 40m1 stop
United Airlines Logo
8:15 pm - 7:10 amORD-DUB
28h 55m1 stop
$463United Airlines
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Fri, Oct 24 - Mon, Nov 3
United Airlines Logo
9:20 am - 3:00 pmDUB-ORD
35h 40m1 stop
United Airlines Logo
8:20 pm - 9:45 amORD-DUB
7h 25mnonstop
$466United Airlines
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Wed, Oct 8 - Mon, Oct 13

Lufthansa flights from Dublin to Chicago O'Hare Intl Airport

Our best Lufthansa deals on Dublin to Chicago O'Hare Intl Airport flight tickets
Lufthansa
Nov 5
DUB5:10 amDublin
20h 55m
1 stop
ORD8:05 pmChicago O'Hare Intl
Nov 11
ORD9:50 pmChicago O'Hare Intl
13h 20m
1 stop
DUB5:10 pmDublin
$449
Find similar
Lufthansa
Nov 2
DUB5:10 amDublin
16h 10m
1 stop
ORD4:20 pmChicago O'Hare Intl
Nov 9
ORD6:35 pmChicago O'Hare Intl
7h 35m
DUB8:10 amDublin
$455
Find similar
Lufthansa
Oct 13
DUB5:55 amDublin
15h 00m
1 stop
ORD2:55 pmChicago O'Hare Intl
Oct 21
ORD8:20 pmChicago O'Hare Intl
7h 25m
DUB9:45 amDublin
$459
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British Airways flights from Dublin to Chicago O'Hare Intl Airport

Our best British Airways deals on Dublin to Chicago O'Hare Intl Airport flight tickets
British Airways
Nov 2
DUB10:45 amDublin
12h 15m
1 stop
ORD5:00 pmChicago O'Hare Intl
Nov 9
ORD8:40 pmChicago O'Hare Intl
17h 00m
1 stop
DUB7:40 pmDublin
$442
Find similar
British Airways
Oct 13
DUB8:45 amDublin
11h 55m
1 stop
ORD2:40 pmChicago O'Hare Intl
Oct 21
ORD5:40 pmChicago O'Hare Intl
12h 15m
1 stop
DUB11:55 amDublin
$445
Find similar
British Airways
Oct 2
DUB8:35 amDublin
14h 25m
1 stop
ORD5:00 pmChicago O'Hare Intl
Oct 6
ORD10:35 pmChicago O'Hare Intl
15h 00m
1 stop
DUB7:35 pmDublin
$446
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momondo Fare Finder

 
Customize your flight search to find flights from Dublin 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 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Dublin to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 10/28

7:05 pm-9:05 pm

1 stop31h 00m

Chicago O'Hare Intl

Wed 11/5

7:20 pm-11:45 am

1 stop34h 25m

$438

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 10/30

7:05 pm-5:45 pm

1 stop27h 40m

Chicago O'Hare Intl

Wed 11/5

7:20 pm-11:45 am

1 stop34h 25m

$439

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 11/2

10:45 am-5:00 pm

1 stop12h 15m

Chicago O'Hare Intl

Sun 11/9

8:40 pm-7:40 pm

1 stop17h 00m

$442

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 10/13

8:45 am-2:40 pm

1 stop11h 55m

Chicago O'Hare Intl

Tue 10/21

5:40 pm-11:55 am

1 stop12h 15m

$445

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 11/5

5:10 am-8:05 pm

1 stop20h 55m

Chicago O'Hare Intl

Tue 11/11

9:50 pm-5:10 pm

1 stop13h 20m

$449

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 11/3

11:30 am-2:00 pm

Nonstop8h 30m

Chicago O'Hare Intl

Fri 11/7

7:40 pm-9:00 am

Nonstop7h 20m

$454

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 11/2

5:10 am-4:20 pm

1 stop16h 10m

Chicago O'Hare Intl

Sun 11/9

6:35 pm-8:10 am

Nonstop7h 35m

$455

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/15

11:35 am-2:00 pm

Nonstop8h 25m

Chicago O'Hare Intl

Wed 10/22

9:15 pm-10:40 am

Nonstop7h 25m

$462

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 10/24

9:20 am-3:00 pm

1 stop35h 40m

Chicago O'Hare Intl

Mon 11/3

8:15 pm-7:10 am

1 stop28h 55m

$463

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/8

9:20 am-3:00 pm

1 stop35h 40m

Chicago O'Hare Intl

Mon 10/13

8:20 pm-9:45 am

Nonstop7h 25m

$466

Flights are sorted by cheapest round-trip 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 Dublin 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?

The month of February is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Dublin averaging around $505.

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

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $655. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $818.

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

Flying to Chicago O'Hare Intl Airport from Dublin in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $722 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $818. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from Dublin to Chicago O'Hare Intl for the best Dublin - 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 Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $606 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Dublin for as low as $535 on momondo.

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

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

You could potentially save up to 10% on your flight if you consider stops on a Dublin to Chicago O'Hare Intl Airport flight.

How have Dublin to Chicago O'Hare Intl Airport flight prices changed over time?

As of September 2025, prices for Dublin to Chicago O'Hare Intl Airport flights are approximately 37% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Dublin to Chicago O'Hare Intl Airport (DUB to ORD) flight deals and tips

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

Best Price Found

$574

Fastest flight time

8h 00m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Dublin in the past 72 hours is $574. The best round-trip flight deal from Dublin to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $553.
The fastest flight from Dublin to Chicago O'Hare Intl Airport takes 8h 00m
Direct flights go from Dublin to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is Dublin to Chicago O'Hare Intl by plane?

    The straight-line distance from Dublin to Chicago O'Hare Intl is 3663.0 mi. Typically, this will take 8h 00m by plane in normal conditions.

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

    Prices for flights from Dublin Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

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

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

    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 layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport 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 license 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 Dublin to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Dublin to Chicago O'Hare Intl Airport?

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

Compare and see reviews for airlines that fly from Dublin to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $393Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
Aer LingusPriceFrom $463Free CancellationRating
7.2
1,277 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $473Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • United Airlines Flights From Dublin to Chicago O'Hare Intl Airport

    United Airlines flies from Dublin to Chicago O'Hare Intl Airport around 6 times per week, with 8,926 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Dublin to Chicago O'Hare Intl Airport in the last 72 hours was $473 (round-trip), much lower than the average airfare cost of $752 for United Airlines flights on this route.

  • Aer Lingus Flights From Dublin to Chicago O'Hare Intl Airport

    The best Aer Lingus deal for Dublin to Chicago O'Hare Intl Airport flight tickets found on momondo in the last 72 hours was $463, round-trip. It should be noted that an average Aer Lingus flight deal for this route in this time was higher, at $582 round-trip. Aer Lingus operates 20 flights out of Dublin into Chicago O'Hare Intl Airport in an average week, so prices vary by time and availability. 1,277 Aer Lingus reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Rockford
Schaumburg
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Hammond
Orland Park
Tinley Park
Elgin
Aurora
Janesville
Benton Harbor

Why use momondo?

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

It is quick and easy to find Dublin to Chicago 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 Chicago that suits you.

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

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

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

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 Chicago from Dublin.

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

Price alerts on flights to Chicago from Dublin are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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