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$211+ Cheap flights from Chicago (CHI) to Dublin (DUB)

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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DUB
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Dublin are usually found in February or January, booked 72 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Chicago to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Dublin (DUB). 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 September 11, 2025.

Round-trip from

$486
(KAYAK)

One-way from

$211
(oojo)

Popular in

June

Cheapest in

February

Average price

$685

Good round-trip deal

$597 or less

Good one-way deal

$487 or less
From Chicago (CHI) to Dublin
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One-way flight from Chicago (CHI) to Dublin
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Highest demand for flights based on searches. 16% potential increase in price ($133 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Dublin.
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Price to beat on a one-way flight from Chicago (CHI) to Dublin.
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Find flight deals from Chicago to Dublin

Cheapest flights from Chicago to Dublin
Explore the most affordable flight options available from Chicago to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This KAYAK deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:50 pmORD - DUB
1 stop16h 55mSWISS
Mon 11/101:20 pmDUB - ORD
1 stop33h 00mSWISS
Deal found 9/10$486
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:20 pmORD - DUB
Nonstop7h 25mUnited Airlines
Fri 10/249:20 amDUB - ORD
1 stop16h 44mUnited Airlines
Deal found 9/11$487
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:20 pmORD - DUB
1 stop10h 35mUnited Airlines
Tue 11/410:40 amDUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 9/11$488
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:55 pmORD - DUB
1 stop12h 15mUnited Airlines
Wed 10/159:20 amDUB - ORD
1 stop16h 44mUnited Airlines
Deal found 9/11$490
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:20 pmORD - DUB
1 stop17h 00mScandinavian Airlines
Mon 11/178:20 pmDUB - ORD
2 stops50h 25mScandinavian Airlines
Deal found 9/11$491
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:50 pmORD - DUB
1 stop10h 25mAir Canada
Wed 10/229:20 amDUB - ORD
1 stop16h 44mAir Canada
Deal found 9/9$492
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:50 amORD - DUB
1 stop16h 20mUnited Airlines
Tue 10/219:50 amDUB - ORD
1 stop15h 34mUnited Airlines
Deal found 9/11$493
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/278:15 pmORD - DUB
1 stop28h 55mAir Canada
Wed 1/79:00 amDUB - ORD
2 stops35h 55mAir Canada
Deal found 9/10$494
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/63:45 pmORD - DUB
1 stop34h 00mMultiple Airlines
Mon 10/131:00 pmDUB - ORD
1 stop32h 55mMultiple Airlines
Deal found 9/10$496
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:20 pmORD - DUB
Nonstop7h 25mUnited Airlines
Thu 10/2311:35 amDUB - ORD
Nonstop8h 00mUnited Airlines
Deal found 9/11$497
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:45 pmORD - DUB
Nonstop7h 25mAer Lingus
Tue 10/214:40 pmDUB - ORD
Nonstop8h 20mAer Lingus
Deal found 9/10$498
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:08 pmMDW - DUB
2 stops13h 57mMultiple Airlines
Wed 11/59:45 amDUB - MDW
1 stop12h 30mMultiple Airlines
Deal found 9/10$500

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Dublin 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Chicago to Dublin that are best for you.

Fly from

Chicago

Fly to

Dublin

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 10/12

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Fri 10/24

9:20 am-8:04 pm

1 stop16h 44m

$487

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 10/8

2:39 pm-7:10 am

1 stop10h 31m

Dublin

Wed 10/15

9:20 am-8:04 pm

1 stop16h 44m

$490

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 11/23

6:35 pm-8:10 am

Nonstop7h 35m

Dublin

Tue 12/2

10:40 am-1:30 pm

Nonstop8h 50m

$493

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 11/17

7:20 pm-10:45 am

2 stops33h 25m

Dublin

Tue 11/25

11:30 am-4:45 pm

2 stops35h 15m

$496

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/28

2:39 pm-10:20 am

1 stop14h 41m

Dublin

Sun 11/16

9:00 am-5:48 pm

1 stop14h 48m

$497

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/28

4:56 pm-3:45 pm

2 stops17h 49m

Dublin

Tue 11/18

6:00 am-4:28 pm

2 stops16h 28m

$501

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/28

7:35 pm-8:10 am

Nonstop7h 35m

Dublin

Tue 11/11

10:40 am-1:30 pm

Nonstop8h 50m

$506

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Wed 11/12

1:05 pm-7:45 am

1 stop12h 40m

Dublin

Mon 11/17

9:45 am-4:39 pm

1 stop12h 54m

$512

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Tue 10/7

9:20 am-7:55 am

1 stop16h 35m

Dublin

Tue 10/14

11:00 am-10:14 pm

1 stop17h 14m

$512

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Sun 10/12

10:35 am-8:45 am

1 stop16h 10m

Dublin

Thu 10/23

10:00 am-5:43 pm

1 stop13h 43m

$512

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 39 results
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The best insider tips for Chicago to Dublin flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Dublin trip
Airports
ORD

For a quick departure, use the free shuttle train between terminals at ORD, especially if your flight is from Terminal 5.

Read more about ORDby Ramsey Qubein
DUB

For a smooth arrival at DUB, use the Aircoach for a quick, non-stop ride to central Dublin, departing every 15 minutes.

Read more about DUBby James March
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
James March

James March

Expert on DUB

James March

James March

For UK-based James March, nothing beats the thrill and chaos of arriving in a new city for the first time, and he tries to put that feeling into his writing and inspire others to travel too. From Birmingham to Blackpool and Leicester to Liverpool, James has reviewed hotels, written narratives and created guides for those who love to travel.

Read more

Best time to book a flight from Chicago to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Chicago with our price prediction graph.
Estimated round-trip 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 Chicago to Dublin

How far ahead should I book a flight from Chicago to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Dublin. Price data was last updated on August 29, 2025.

The price you pay for your flight from Chicago to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago to Dublin?

Currently, November is the cheapest month in which you can book a flight from Chicago to Dublin (average of $509). Flying from Chicago to Dublin in June is currently the most expensive (average of $924). 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 CHI to DUB?

Find hourly flight availability from Chicago to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from Chicago to Dublin at noon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Chicago to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Dublin. Price data was last updated on September 22, 2024.

Travelers seeking maximum savings on their Chicago to Dublin flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Dublin

Explore weekly flight availability from Chicago to Dublin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from CHI to DUB are scheduled on a Monday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).

What’s the top layover airport for flights from Chicago to Dublin?

Share of 1-stop round-trip flights from Chicago to Dublin chosen by Cheapflights users in the past 12 months, using the same layover each way.

London (LHR) – chosen by Cheapflights users on 80% of 1-stop itineraries from Chicago to Dublin on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Dublin?

Average round-trip fare for 1-stop flights from Chicago to Dublin, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $399.

What’s the fastest layover option from Chicago to Dublin?

Shortest average travel time for 1-stop one-way flights from Chicago to Dublin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 9h 45m.

Which airport typically offers the quickest layover for flights from Chicago to Dublin?

Average layover duration for 1-stop one-way flights from Chicago to Dublin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 48m.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Aer Lingus from Chicago to Dublin by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.2
Good
1,271 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Icelandair
7.0
Good
546 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,929 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Chicago to Dublin. 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 into for flights to Dublin from Chicago?

    Dublin (DUB) is the airport you will fly into if you book a flight from Chicago to Dublin. You should not have trouble finding flights to Dublin from Chicago; the airport handles an average of 19 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 15 airlines have flights to the Dublin airport from Chicago. It is only a 5.7 mi journey from Dublin (DUB) to Dublin’s city center.

  • How long is the flight from Chicago to Dublin?

    For as low as $487, United Airlines can have you in Dublin from Chicago in 7h 25m. The distance from Chicago to Dublin is about 3661 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Chicago to Dublin round-trip?

    According to our current data, JetBlue ($51), Icelandair ($355), and TAP AIR PORTUGAL ($393) offers the cheapest pricing from Chicago to Dublin. You may be able to fly from Chicago to Dublin for 92% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Chicago to Dublin?

    Consider Air France (89%), Iberia (68%) or American Airlines (68%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Dublin.

  • What are the cheapest flights from Chicago to Dublin?

    On average you can expect to pay $3,321 for a flight from Chicago to Dublin. The cheapest flight overall is $400 while the most popular route, (Chicago O'Hare Intl - Dublin) is currently priced at $356.

  • Can I find deals for flights from Chicago to Dublin that include hotel bookings?

    Yes. In addition to deals on Chicago to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Dublin?

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

  • Can I find deals for business class flights from Chicago to Dublin?

    Yes. Cheapflights offers flight deals from Chicago to Dublin 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 Chicago to Dublin?

    Currently, November is the cheapest month in which you can book a flight from Chicago to Dublin (average of $509). Flying from Chicago to Dublin in June is currently the most expensive (average of $924). 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

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 10 airlines flying from Chicago to Dublin

Discover the top 10 airlines that operate flights from Chicago to Dublin. 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$568FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$355Average$543FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$496FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$479FlexibilityNo cancel feeOn-time77%
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$475Average$716FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$523Average$699FlexibilityNo cancel feeOn-time70%
IberiaCheapest$523Average$804FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$528Average$596FlexibilityNo cancel feeOn-time77%
DeltaCheapest$549Average$787FlexibilityNo cancel feeOn-timeN/A

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