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Cheap flights from Dublin to Chicago from €320

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 19/2. 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 return flights

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Scandinavian Airlines Logo
19:05 - 16:45
DUB
-
ORD
27h 40m
1 stop
Scandinavian Airlines Logo
20:20 - 18:20
ORD
-
DUB
17h 00m
1 stop
€367Scandinavian Airlines
Sun, 1 Mar - Wed, 11 Mar
Scandinavian Airlines Logo
11:30 - 16:55
DUB
-
ORD
35h 25m
2 stops
Scandinavian Airlines Logo
20:20 - 18:20
ORD
-
DUB
17h 00m
1 stop
€373Scandinavian Airlines
Thu, 5 Mar - Mon, 9 Mar
Finnair Logo
09:30 - 11:30
DUB
-
ORD
8h 00mdirect
Finnair Logo
22:25 - 11:50
ORD
-
DUB
7h 25mdirect
€374Finnair
Fri, 15 May - Mon, 25 May
Scandinavian Airlines Logo
11:30 - 16:55
DUB
-
ORD
35h 25m
2 stops
Scandinavian Airlines Logo
20:20 - 10:45
ORD
-
DUB
33h 25m
2 stops
€379Scandinavian Airlines
Thu, 5 Mar - Mon, 9 Mar
Multiple Airlines Logo
08:35 - 14:55
DUB
-
ORD
12h 20m
1 stop
Multiple Airlines Logo
22:25 - 11:50
ORD
-
DUB
7h 25mdirect
€380Multiple Airlines
Wed, 13 May - Tue, 26 May
Scandinavian Airlines Logo
19:05 - 16:45
DUB
-
ORD
27h 40m
1 stop
Scandinavian Airlines Logo
19:20 - 18:20
ORD
-
DUB
17h 00m
1 stop
€382Scandinavian Airlines
Sun, 22 Feb - Wed, 4 Mar
Scandinavian Airlines Logo
19:05 - 16:45
DUB
-
ORD
27h 40m
1 stop
Scandinavian Airlines Logo
19:20 - 18:20
ORD
-
DUB
17h 00m
1 stop
€384Scandinavian Airlines
Thu, 12 Feb - Wed, 18 Feb
Scandinavian Airlines Logo
10:10 - 16:45
DUB
-
ORD
12h 35m
1 stop
Scandinavian Airlines Logo
19:10 - 11:45
ORD
-
DUB
34h 35m
1 stop
€386Scandinavian Airlines
Sat, 14 Feb - Sun, 15 Feb
Multiple Airlines Logo
10:30 - 17:35
DUB
-
ORD
13h 05m
1 stop
Multiple Airlines Logo
22:35 - 18:50
ORD
-
DUB
14h 15m
1 stop
€392Multiple Airlines
Tue, 31 Mar - Tue, 7 Apr
Multiple Airlines Logo
10:30 - 18:15
DUB
-
ORD
13h 45m
1 stop
Multiple Airlines Logo
22:35 - 18:50
ORD
-
DUB
14h 15m
1 stop
€394Multiple Airlines
Tue, 31 Mar - Tue, 7 Apr

Scandinavian Airlines flights from Dublin to Chicago O'Hare Intl Airport

Our best Scandinavian Airlines deals on Dublin to Chicago O'Hare Intl Airport flight tickets
Scandinavian Airlines
1 Mar
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
11 Mar
ORD20:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€344
Scandinavian Airlines
22 Feb
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
4 Mar
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€357
Scandinavian Airlines
1 Mar
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
11 Mar
ORD20:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
€367

American Airlines flights from Dublin to Chicago O'Hare Intl Airport

Our best American Airlines deals on Dublin to Chicago O'Hare Intl Airport flight tickets
American Airlines
5 Feb
DUB11:30Dublin
32h 29m
1 stop
ORD13:59Chicago O'Hare Intl
9 Feb
ORD18:25Chicago O'Hare Intl
16h 40m
1 stop
DUB17:05Dublin
€437
American Airlines
3 Feb
DUB10:55Dublin
12h 05m
1 stop
ORD17:00Chicago O'Hare Intl
10 Feb
ORD18:25Chicago O'Hare Intl
11h 45m
1 stop
DUB12:10Dublin
€438
American Airlines
3 Feb
DUB11:30Dublin
13h 04m
1 stop
ORD18:34Chicago O'Hare Intl
10 Feb
ORD18:25Chicago O'Hare Intl
11h 45m
1 stop
DUB12:10Dublin
€439

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 13,528 searches. Data last updated 24 January 2026.
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

Sun 1/3

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Wed 11/3

20:20-18:20

1 stop17h 00m

€367

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/3

11:30-16:55

2 stops35h 25m

Chicago O'Hare Intl

Mon 9/3

20:20-18:20

1 stop17h 00m

€373

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 15/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Mon 25/5

22:25-11:50

Nonstop7h 25m

€374

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/3

11:30-16:55

2 stops35h 25m

Chicago O'Hare Intl

Mon 9/3

20:20-10:45

2 stops33h 25m

€379

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 13/5

08:35-14:55

1 stop12h 20m

Chicago O'Hare Intl

Tue 26/5

22:25-11:50

Nonstop7h 25m

€380

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 22/2

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Wed 4/3

19:20-18:20

1 stop17h 00m

€382

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 12/2

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Wed 18/2

19:20-18:20

1 stop17h 00m

€384

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 14/2

10:10-16:45

1 stop12h 35m

Chicago O'Hare Intl

Sun 15/2

19:10-11:45

1 stop34h 35m

€386

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 31/3

10:30-17:35

1 stop13h 05m

Chicago O'Hare Intl

Tue 7/4

22:35-18:50

1 stop14h 15m

€392

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 31/3

10:30-18:15

1 stop13h 45m

Chicago O'Hare Intl

Tue 7/4

22:35-18:50

1 stop14h 15m

€394

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 cheapest month to fly to Chicago O'Hare Intl Airport?

In general, November is the cheapest month to fly from Dublin to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €405. If you are unable to visit Chicago O'Hare Intl Airport during the month of November, then departing from Dublin during the month September is also very affordable. Most momondo users find prices during this month for around €415.

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

On average, the least expensive day to fly to Chicago O'Hare Intl Airport from Dublin is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as €624. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Chicago O'Hare Intl Airport is Tuesday, with ticket prices averaging around €722.

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

Our data shows that the cheapest Dublin to Chicago O'Hare Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Chicago O'Hare Intl Airport in the afternoon for as low as €594. Flights to Chicago O'Hare Intl Airport are more costly in the morning, with an average ticket price of €670. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 €523 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 €449 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?

No. A direct flight is the cheapest option for a flight between Dublin to Chicago O'Hare Intl Airport.

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

As of January 2026, prices for Dublin to Chicago O'Hare Intl Airport flights are approximately 17% 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

€667

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 €667. The best return flight deal from Dublin to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is €547.
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?

    Chicago O'Hare Intl is 5895.0 km away from Dublin. 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 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 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 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 you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek 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
IcelandairPriceFrom €371Free CancellationRating
7.1
602 reviews
Search Icelandair flights
United AirlinesPriceFrom €394Free CancellationRating
7.4
9,193 reviews
Search United Airlines flights
Aer LingusPriceFrom €395Free CancellationRating
7.2
1,442 reviews
Search Aer Lingus flights
British AirwaysPriceFrom €396Free CancellationRating
6.7
7,694 reviews
Search British Airways flights
American AirlinesPriceFrom €506Free CancellationRating
7.2
11,193 reviews
Search American 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 7 times per week, with 9,193 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 €394 (round-trip), much lower than the average airfare cost of €582 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 €395, round-trip. It should be noted that an average Aer Lingus flight deal for this route in this time was higher, at €526 round-trip. Aer Lingus operates 6 flights out of Dublin into Chicago O'Hare Intl Airport in an average week, so prices vary by time and availability. 1,442 Aer Lingus reviews by users on momondo have scored the airline at 7.2/10.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Rosemont
Oakbrook Terrace
Elk Grove Village
Crystal Lake

Why use momondo?

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

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

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

All flight searches from Dublin to Chicago on momondo can be filtered to show those which offer flexible booking policies.

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?

Yes. momondo can track prices for Dublin to Chicago 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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