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$225+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DUB
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Dublin are usually found in February or January, booked 56 days in advance, depart on a Tuesday or Sunday and return on a Friday

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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$511
(Mytrip)

One-way from

$225
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$621

Good round-trip deal

$696 or less

Good one-way deal

$545 or less
Provider with most accurate pricing for Chicago (CHI)-Dublin flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Dublin flights.
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From Chicago (CHI) to Dublin
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One-way flight from Chicago (CHI) to Dublin
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This FlightHub deal was found by Cheapflights users on 3/24. 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.
Thu 8/217:15 pmORD - DUB
2 stops18h 45mScandinavian Airlines
Mon 9/17:05 pmDUB - ORD
1 stop27h 05mScandinavian Airlines
Deal found 3/24$509
This oojo deal was found by Cheapflights users on 3/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:30 pmORD - DUB
1 stop9h 45mIcelandair
Wed 11/1911:30 amDUB - ORD
1 stop11h 50mIcelandair
Deal found 3/25$539
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Wed 11/53:55 pmORD - DUB
Nonstop7h 20mAer Lingus
Thu 11/133:20 pmDUB - ORD
Nonstop8h 35mAer Lingus
Deal found 3/26$547
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Thu 5/15:55 amORD - DUB
2 stops36h 15mMultiple Airlines
Sun 5/1112:50 pmDUB - ORD
1 stop33h 54mMultiple Airlines
Deal found 3/25$549
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/25. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:00 pmORD - DUB
1 stop18h 05mTAP AIR PORTUGAL
Tue 10/146:50 pmDUB - ORD
1 stop27h 20mTAP AIR PORTUGAL
Deal found 3/25$551
This Justfly.com deal was found by Cheapflights users on 3/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:20 amORD - DUB
2 stops17h 50mAir Canada
Wed 11/199:00 amDUB - ORD
1 stop11h 51mAir Canada
Deal found 3/24$559
This JetBlue deal was found by Cheapflights users on 3/25. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/28:50 amORD - DUB
1 stop17h 30mJetBlue
Fri 5/910:40 amDUB - ORD
1 stop29h 28mJetBlue
Deal found 3/25$568
This KLM deal was found by Cheapflights users on 3/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:00 pmMDW - DUB
1 stop11h 45mKLM
Tue 12/99:45 amDUB - MDW
1 stop14h 18mKLM
Deal found 3/25$572
This United deal was found by Cheapflights users on 3/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:00 pmORD - DUB
2 stops17h 05mUnited Airlines
Thu 11/69:00 amDUB - ORD
2 stops18h 05mUnited Airlines
Deal found 3/24$576
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:30 amMDW - DUB
2 stops16h 15mDelta
Tue 12/99:45 amDUB - MDW
1 stop14h 18mDelta
Deal found 3/25$576
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:00 amORD - DUB
1 stop19h 45mDelta
Thu 11/135:55 amDUB - ORD
2 stops17h 44mDelta
Deal found 3/25$583
This Cheapflightsfares deal was found by Cheapflights users on 3/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:13 pmORD - DUB
1 stop14h 27mIberia
Mon 11/172:05 pmDUB - ORD
1 stop14h 49mIberia
Deal found 3/26$585

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 March 26, 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 5/11

7:15 pm-10:55 am

2 stops33h 40m

Dublin

Wed 5/21

11:45 am-4:10 pm

2 stops34h 25m

$511

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 5/1

5:55 am-12:10 am

2 stops36h 15m

Dublin

Sun 5/11

12:50 pm-4:44 pm

1 stop33h 54m

$549

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 4/2

6:00 pm-12:05 am

1 stop24h 05m

Dublin

Tue 4/8

6:50 pm-4:10 pm

1 stop27h 20m

$552

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 5/4

6:20 am-8:20 am

1 stop20h 00m

Dublin

Tue 5/13

10:40 am-6:36 pm

1 stop13h 56m

$567

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 3/31

3:45 pm-5:10 am

Nonstop7h 25m

Dublin

Wed 4/9

4:40 pm-7:00 pm

Nonstop8h 20m

$571

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 4/2

2:25 pm-7:20 am

1 stop10h 55m

Dublin

Mon 4/7

9:50 am-2:40 pm

2 stops34h 50m

$586

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 4/2

4:41 pm-8:15 am

1 stop9h 34m

Dublin

Sun 4/6

9:50 am-8:02 am

2 stops28h 12m

$601

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 4/1

8:35 pm-2:45 pm

1 stop12h 10m

Dublin

Tue 4/8

9:30 am-5:36 pm

1 stop14h 06m

$606

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Tue 4/1

12:51 pm-8:45 am

1 stop13h 54m

Dublin

Mon 4/7

11:00 am-10:21 pm

1 stop17h 21m

$613

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Wed 4/2

12:51 pm-8:45 am

1 stop13h 54m

Dublin

Mon 4/7

11:00 am-10:21 pm

1 stop17h 21m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 35 results
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Compare providers for flights from Chicago to Dublin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Dublin in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Dublin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 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 56 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 $1,010). 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 March 26, 2025.

It’s optimal to fly from Chicago to Dublin at noon. By choosing this option you can save up to 5% on the cost of your flight, compared to a flight in the evening.

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 June 30, 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 evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dublin ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Dublin when rainfall is around 1.9 in.

Temperature in Dublin by month

Plan your trip to Dublin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 March 26, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Chicago to Dublin by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,319 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,423 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 3 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 16 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.

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

    According to our current data, Scandinavian Airlines ($511), TAP AIR PORTUGAL ($552), and JetBlue ($567) offers the cheapest pricing from Chicago to Dublin. You may be able to fly from Chicago to Dublin for 26% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago to Dublin one-way?

    One-way options have recently been found by users for as low as $339 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Scandinavian Airlines from $372 and American Airlines from $406 one-way.

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

    Consider American Airlines (78%), Aer Lingus (78%) or British Airways (78%) 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 $2,151 for a flight from Chicago to Dublin. The cheapest flight overall is $476 while the most popular route, (Chicago O'Hare Intl - Dublin) is currently priced at $422.

  • Where are the most common layover locations when flying from Chicago to Dublin?

    Chicago to Dublin flights have a layover in Reykjavik most often.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are currently the most popular points of interest in Reykjavik at the moment. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool can be visited by traveling about 23.2 mi, 23.3 mi, and 24.6 mi respectively from Reykjavik Keflavik Intl. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $55 per day.

  • Where are the least popular layover locations for Chicago to Dublin flights?

    Chicago to Dublin flights have a layover in Stockholm least often.

  • 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 $1,010). 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

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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$196Average$200FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$341Average$489FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$356Average$568FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$394Average$476FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$446Average$699FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$482Average$731FlexibilityNo cancel feeOn-time75%
IberiaCheapest$509Average$733FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$519Average$672FlexibilityNo cancel feeOn-time70%
FinnairCheapest$526Average$811FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$526Average$825FlexibilityNo cancel feeOn-time71%
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