Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Dublin to Chicago from £243

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Chicago departing on 29/8. 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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Dublin to Chicago

Cheap return flights

Icelandair Logo
11:30 - 18:20DUB-ORD
11h 50m1 stop
Icelandair Logo
18:30 - 10:15ORD-DUB
9h 45m1 stop
£288Icelandair
Find Deal
Sat, 1 Nov - Wed, 5 Nov
Icelandair Logo
12:15 - 21:15DUB-ORD
15h 00m1 stop
Icelandair Logo
22:15 - 11:05ORD-DUB
30h 50m1 stop
£291Icelandair
Find Deal
Fri, 12 Sep - Fri, 19 Sep
Scandinavian Airlines Logo
19:05 - 17:45DUB-ORD
27h 40m1 stop
Scandinavian Airlines Logo
19:20 - 11:45ORD-DUB
34h 25m1 stop
£294Scandinavian Airlines
Find Deal
Fri, 31 Oct - Mon, 3 Nov
Scandinavian Airlines Logo
10:45 - 17:45DUB-ORD
36h 00m2 stops
Scandinavian Airlines Logo
19:20 - 11:45ORD-DUB
34h 25m1 stop
£296Scandinavian Airlines
Find Deal
Fri, 31 Oct - Mon, 3 Nov
British Airways Logo
10:50 - 17:00DUB-ORD
12h 10m1 stop
British Airways Logo
20:40 - 14:25ORD-DUB
11h 45m1 stop
£339British Airways
Find Deal
Wed, 1 Oct - Sat, 11 Oct
Aer Lingus Logo
11:35 - 14:00DUB-ORD
8h 25mdirect
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
£345Aer Lingus
Find Deal
Fri, 19 Sep - Sat, 27 Sep
American Airlines Logo
10:45 - 19:45DUB-ORD
14h 00m1 stop
American Airlines Logo
17:10 - 12:10ORD-DUB
13h 00m1 stop
£346American Airlines
Find Deal
Fri, 31 Oct - Tue, 4 Nov
British Airways Logo
08:35 - 17:00DUB-ORD
14h 25m1 stop
British Airways Logo
17:40 - 18:20ORD-DUB
18h 40m1 stop
£351British Airways
Find Deal
Tue, 16 Sep - Mon, 29 Sep
United Airlines Logo
09:20 - 14:55DUB-ORD
11h 35m1 stop
United Airlines Logo
10:45 - 10:20ORD-DUB
17h 35m1 stop
£356United Airlines
Find Deal
Tue, 16 Sep - Sat, 27 Sep
United Airlines Logo
09:20 - 14:55DUB-ORD
11h 35m1 stop
United Airlines Logo
20:20 - 09:45ORD-DUB
7h 25mdirect
£358United Airlines
Find Deal
Sat, 13 Sep - Mon, 29 Sep

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
1 Oct
DUB10:50Dublin
12h 10m
1 stop
ORD17:00Chicago O'Hare Intl
11 Oct
ORD20:40Chicago O'Hare Intl
11h 45m
1 stop
DUB14:25Dublin
£339
Find similar
British Airways
16 Sept
DUB08:35Dublin
14h 25m
1 stop
ORD17:00Chicago O'Hare Intl
29 Sept
ORD17:40Chicago O'Hare Intl
18h 40m
1 stop
DUB18:20Dublin
£351
Find similar
British Airways
6 Aug
DUB11:45Dublin
17h 14m
1 stop
ORD22:59Chicago O'Hare Intl
8 Aug
ORD17:54Chicago O'Hare Intl
29h 36m
1 stop
DUB05:30Dublin
£703
Find similar

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
8 Oct
DUB09:00Dublin
16h 55m
1 stop
ORD19:55Chicago O'Hare Intl
13 Oct
ORD20:20Chicago O'Hare Intl
7h 25m
DUB09:45Dublin
£329
Find similar
Lufthansa
8 Oct
DUB11:35Dublin
8h 00m
ORD13:35Chicago O'Hare Intl
13 Oct
ORD20:20Chicago O'Hare Intl
7h 25m
DUB09:45Dublin
£342
Find similar
Lufthansa
15 Sept
DUB12:15Dublin
13h 40m
1 stop
ORD19:55Chicago O'Hare Intl
30 Sept
ORD20:20Chicago O'Hare Intl
7h 25m
DUB09:45Dublin
£353
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 30 July 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

Sat 1/11

11:30-18:20

1 stop11h 50m

Chicago O'Hare Intl

Wed 5/11

18:30-10:15

1 stop9h 45m

£288

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 12/9

12:15-21:15

1 stop15h 00m

Chicago O'Hare Intl

Fri 19/9

22:15-11:05

1 stop30h 50m

£291

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 31/10

19:05-17:45

1 stop27h 40m

Chicago O'Hare Intl

Mon 3/11

19:20-11:45

1 stop34h 25m

£294

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 31/10

10:45-17:45

2 stops36h 00m

Chicago O'Hare Intl

Mon 3/11

19:20-11:45

1 stop34h 25m

£296

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 1/10

10:50-17:00

1 stop12h 10m

Chicago O'Hare Intl

Sat 11/10

20:40-14:25

1 stop11h 45m

£339

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 19/9

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Sat 27/9

15:45-05:10

Nonstop7h 25m

£345

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 31/10

10:45-19:45

1 stop14h 00m

Chicago O'Hare Intl

Tue 4/11

17:10-12:10

1 stop13h 00m

£346

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

08:35-17:00

1 stop14h 25m

Chicago O'Hare Intl

Mon 29/9

17:40-18:20

1 stop18h 40m

£351

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 16/9

09:20-14:55

1 stop11h 35m

Chicago O'Hare Intl

Sat 27/9

10:45-10:20

1 stop17h 35m

£356

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 13/9

09:20-14:55

1 stop11h 35m

Chicago O'Hare Intl

Mon 29/9

20:20-09:45

Nonstop7h 25m

£358

Flights are sorted by cheapest return flights first.

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

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 typical price of a round-trip flight between Dublin and Chicago O'Hare Intl Airport?

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The cheapest month to fly to Chicago O'Hare Intl Airport from Dublin is in February. Flight prices, which tend to average around £378, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Chicago O'Hare Intl Airport from Dublin during November instead. Flights to Chicago O'Hare Intl Airport in November, while not as cheap as those in February, still average around £387.

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

The cheapest day to depart from Dublin to Chicago O'Hare Intl Airport is on a Tuesday. Travellers who choose to depart for Chicago O'Hare Intl Airport on a Tuesday will often find tickets for as low as £533. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Chicago O'Hare Intl Airport on Saturday is £604.

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

The cheapest time of day to fly to Chicago O'Hare Intl Airport is in the afternoon when flights can be purchased for as low as £560. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is at midday when prices are around £599.

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 £449 when searching weeks before you fly. 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 £392 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 37% 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 July 2025, prices for Dublin to Chicago O'Hare Intl Airport flights are approximately 10% cheaper 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 return 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

£243

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 £243. The best return flight deal from Dublin to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is £288.
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. In terms of flight time, this usually takes a little over 8h 00m.

  • 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 refresh daily.

  • 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 travel and health documents required for your trip to Chicago O'Hare Intl 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 license, and a passport valid for six-months after you plan to arrive at Chicago O'Hare Intl 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 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
IcelandairPriceFrom £260Free CancellationRating
7.0
521 reviews
Search Icelandair flights
British AirwaysPriceFrom £290Free CancellationRating
6.6
7,208 reviews
Search British Airways flights
United AirlinesPriceFrom £293Free CancellationRating
7.4
8,896 reviews
Search United Airlines flights
Aer LingusPriceFrom £309Free CancellationRating
7.1
1,190 reviews
Search Aer Lingus flights
FinnairPriceFrom £370Free CancellationRating
7.6
1,316 reviews
Search Finnair flights
IberiaPriceFrom £379Free CancellationRating
7.0
2,859 reviews
Search Iberia flights
American AirlinesPriceFrom £492Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • Finnair Flights From Dublin to Chicago O'Hare Intl Airport

    Across 7 Finnair flights from Dublin to Chicago O'Hare Intl Airport this week, the average price was £717, with the best Finnair deals starting from £494 round-trip. 1,316 users have rated Finnair on momondo, with an average score of 7.6/10.

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

    Another popular option for Dublin to Chicago O'Hare Intl Airport flights is United Airlines (7.4/10, 8,899 ratings). United Airlines flies from Dublin to Chicago O'Hare Intl Airport around 7 times per week, with deals starting from £391 round-trip and rising to an average price of around £720.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Evanston
Northbrook
Schaumburg
Lake Geneva
Lincolnshire
Glenview
Joliet
Oak Brook
Oak Park
Elgin
Rosemont

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dublin to Chicago for you.

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

Yes. All flights to Chicago from Dublin on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Chicago from Dublin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 4/8
Mon 11/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago