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Cheap flights from Dublin to Chicago O'Hare Intl Airport from £376

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
29 Jul — 5 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to Chicago O'Hare Intl are usually found in November or September, booked 67 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Dublin to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to O'Hare Intl
Explore the most affordable flight options available from Dublin to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 June 2026.

Fri 9/1010:00
DUB
-
ORD
1 stop12h 49m
Delta
Mon 12/1017:45
ORD
-
DUB
2 stops15h 40m
Delta
Deal found 25/6£461
Thu 8/1010:00
DUB
-
ORD
1 stop12h 40m
Delta
Tue 13/1017:10
ORD
-
DUB
1 stop19h 15m
Delta
Deal found 28/6£463
Wed 7/1011:00
DUB
-
ORD
1 stop16h 45m
Delta
Mon 12/1015:50
ORD
-
DUB
1 stop10h 05m
Delta
Deal found 26/6£464
Fri 21/820:35
DUB
-
ORD
2 stops30h 45m
Multiple Airlines
Fri 28/822:25
ORD
-
DUB
1 stop30h 40m
Multiple Airlines
Deal found 28/6£467
Tue 25/816:45
DUB
-
ORD
Nonstop8h 30m
Aer Lingus
Sat 29/815:45
ORD
-
DUB
Nonstop7h 25m
Aer Lingus
Deal found 25/6£468
Thu 20/809:40
DUB
-
ORD
2 stops29h 20m
Multiple Airlines
Mon 31/812:30
ORD
-
DUB
3 stops18h 45m
Multiple Airlines
Deal found 26/6£470
Sun 27/1210:40
DUB
-
ORD
Nonstop8h 40m
United Airlines
Mon 11/118:30
ORD
-
DUB
Nonstop7h 40m
United Airlines
Deal found 24/6£470
Fri 23/1005:55
DUB
-
ORD
1 stop14h 20m
Multiple Airlines
Thu 29/1018:20
ORD
-
DUB
1 stop15h 10m
Multiple Airlines
Deal found 27/6£471
Wed 2/911:35
DUB
-
ORD
Nonstop8h 05m
United Airlines
Wed 9/920:20
ORD
-
DUB
Nonstop7h 25m
United Airlines
Deal found 25/6£472
Wed 23/911:35
DUB
-
ORD
Nonstop8h 05m
United Airlines
Fri 2/1020:20
ORD
-
DUB
Nonstop7h 25m
United Airlines
Deal found 25/6£473

Find flight deals from Dublin to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 June 2026.

Round-trip from

£461

One-way from

£376

Popular in

August

Cheapest in

November

Average price

£562

Good round-trip deal

£586 or less

Good one-way deal

£699 or less
Delta
  • Delta
  • 9/10-12/10
  • 3 total stops
  • 28h 29m total
  • Dublin to Chicago
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 17/12
  • 1 total stop
  • 17h 05m total
  • Dublin to Chicago
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Dublin to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Dublin to Chicago O'Hare Intl.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to O'Hare Intl 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, Cheapflights users made 858,174 searches. Data last updated 29 June 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

Cheapest return flight

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 23/9

11:35-13:40

Nonstop8h 05m

Chicago O'Hare Intl

Fri 2/10

15:00-11:10

1 stop14h 10m

£475

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 25/8

11:40-16:10

2 stops34h 30m

Chicago O'Hare Intl

Sat 29/8

19:15-10:25

2 stops33h 10m

£482

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 23/9

11:40-16:10

2 stops34h 30m

Chicago O'Hare Intl

Fri 2/10

19:15-09:15

2 stops32h 00m

£514

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 28/9

19:50-16:10

2 stops26h 20m

Chicago O'Hare Intl

Fri 2/10

19:15-09:15

2 stops32h 00m

£538

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 12/8

11:30-17:35

1 stop12h 05m

Chicago O'Hare Intl

Mon 17/8

09:42-09:00

1 stop17h 18m

£568
Fastest return journey

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 17/8

14:15-18:15

1 stop10h 00m

Chicago O'Hare Intl

Mon 24/8

19:25-13:15

1 stop11h 50m

£576

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/8

14:15-21:25

1 stop13h 10m

Chicago O'Hare Intl

Mon 10/8

19:25-13:15

1 stop11h 50m

£577

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 16/7

09:50-14:55

1 stop11h 05m

Chicago O'Hare Intl

Wed 29/7

10:03-07:20

2 stops15h 17m

£590

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 25/9

11:10-22:32

2 stops17h 22m

Chicago O'Hare Intl

Tue 29/9

13:50-08:45

1 stop12h 55m

£595

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 26/9

05:55-16:14

2 stops16h 19m

Chicago O'Hare Intl

Mon 28/9

15:40-08:45

1 stop11h 05m

£595

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Dublin to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Dublin with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Chicago O'Hare Intl Airport

How far ahead should I book a flight from Dublin to Chicago O'Hare Intl Airport?

The best time to book flights from Dublin to Chicago O'Hare Intl Airport is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Dublin to Chicago O'Hare Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £361). Flying from Dublin to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £662). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DUB to ORD?

Find hourly flight availability from Dublin to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 June 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Chicago O'Hare Intl Airport as you normally would.

How much does it cost for a return flight from Dublin to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 29 June 2026.
See what other customers who have flown with Finnair,United Airlines, andAer Lingus from Dublin to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,415 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Overall

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,415 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Overall

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
United Airlines
7.4
Good
9,897 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Overall

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Aer Lingus
7.3
Good
1,631 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Overall

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Icelandair
7.0
Good
694 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Overall

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Lufthansa
6.8
Okay
8,109 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Boarding

7.7

Food

6.7

Comfort

7.4

Crew

8.2

Overall

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Related info for your journey

Find useful and relevant information for your journey from Dublin to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Dublin to Chicago O'Hare Intl?

    Located just 5.7 mi from the city center, Dublin is the airport most travelers will use when flying to Chicago O'Hare Intl from Dublin. Booking flights from Dublin (DUB) to Chicago O'Hare Intl should be relatively easy as there are 21 daily outbound flights to Chicago O'Hare Intl from 5 different airlines.

  • How long is the flight from Dublin to Chicago O'Hare Intl Airport?

    A quick flight from Dublin to Chicago O'Hare Intl Airport can take about 8h 05m. United Airlines provides one of the quickest options available for as low as £475. The distance between Dublin and Chicago O'Hare Intl Airport is about 3661 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Dublin to Chicago O'Hare Intl Airport round-trip?

    Currently priced at £303, Icelandair will fly you from Dublin to Chicago O'Hare Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and Aer Lingus - these airlines can fly you to your destination from £337 and £351, respectively. Icelandair is 41% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Dublin to Chicago O'Hare Intl Airport?

    Before booking your flight to Chicago O'Hare Intl Airport from Dublin, check out the most reliable airlines to get you to your destination on time: American Airlines (84%), Aer Lingus (84%), British Airways( 84%).

  • What are the cheapest flights from Dublin to Chicago O'Hare Intl Airport?

    Looking for the cheapest flight from Dublin to Chicago O'Hare Intl Airport? While on average our users pay £1,159, our data indicates the cheapest price to be £549. The most popular route (Dublin - Chicago O'Hare Intl), is priced around £754.

  • Can I find deals for flights from Dublin to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Dublin to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to O'Hare Intl.

  • Can I find deals for business class flights from Dublin to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Dublin to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Chicago O'Hare Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of £361). Flying from Dublin to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £662). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village

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Alternative routes for Dublin to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Midway flights

Top 5 airlines flying from Dublin to O'Hare Intl

Discover the top 5 airlines that operate flights from Dublin to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£303Average£483FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£337Average£660FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£351Average£550FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£360Average£654FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£465Average£673FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to O'Hare Intl?

Deals for Dublin to O'Hare Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Dublin to O'Hare Intl?

Cheapflights helps you find that perfect flight to O'Hare Intl from Dublin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Dublin to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from Dublin? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dublin to O'Hare Intl become cheaper?

Yes! Start tracking prices for Dublin to O'Hare Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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