Dublin

$348+ Cheap flights from Louisville (SDF) 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Jun 6 — Jun 131
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Cheap flight deals from Louisville to Dublin

Cheapest flights from Louisville to Dublin
Explore the most affordable flight options available from Louisville to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 7, 2026.

This Air Canada deal was found by Cheapflights users on 5/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:15 am
SDF
-
DUB
2 stops16h 30m
Air Canada
Thu 9/179:20 am
DUB
-
SDF
2 stops40h 16m
Air Canada
Deal found 5/2$721
This British Airways deal was found by Cheapflights users on 5/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:07 pm
SDF
-
DUB
2 stops14h 28m
Multiple Airlines
Fri 9/1810:30 am
DUB
-
SDF
2 stops17h 04m
Multiple Airlines
Deal found 5/2$722
This Air Canada deal was found by Cheapflights users on 5/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:00 am
SDF
-
DUB
2 stops18h 15m
Air Canada
Thu 9/179:20 am
DUB
-
SDF
2 stops40h 16m
Air Canada
Deal found 5/2$726
This Air Canada deal was found by Cheapflights users on 5/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:00 am
SDF
-
DUB
2 stops18h 15m
Air Canada
Wed 9/169:20 am
DUB
-
SDF
2 stops42h 02m
Air Canada
Deal found 5/2$731
This Gotogate deal was found by Cheapflights users on 5/6. 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.
Tue 9/15:08 pm
SDF
-
DUB
2 stops20h 42m
British Airways
Mon 9/78:30 pm
DUB
-
SDF
2 stops29h 56m
British Airways
Deal found 5/6$741
This Air Canada deal was found by Cheapflights users on 5/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:13 am
SDF
-
DUB
2 stops15h 32m
Air Canada
Tue 9/159:20 am
DUB
-
SDF
2 stops15h 42m
Air Canada
Deal found 5/2$745
This United Airlines deal was found by Cheapflights users on 5/4. 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 9/11:46 pm
SDF
-
DUB
1 stop12h 44m
United Airlines
Fri 9/119:20 am
DUB
-
SDF
2 stops14h 36m
United Airlines
Deal found 5/4$746
This Delta deal was found by Cheapflights users on 5/2. 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.
Sun 9/61:00 pm
SDF
-
DUB
1 stop16h 45m
Delta
Fri 9/185:55 am
DUB
-
SDF
2 stops16h 46m
Delta
Deal found 5/2$747
This KLM deal was found by Cheapflights users on 5/6. 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.
Sun 9/68:20 am
SDF
-
DUB
1 stop19h 25m
KLM
Tue 9/1510:00 am
DUB
-
SDF
1 stop12h 41m
KLM
Deal found 5/6$750
This Delta deal was found by Cheapflights users on 5/2. 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.
Mon 9/710:15 am
SDF
-
DUB
2 stops16h 40m
Delta
Fri 9/183:00 pm
DUB
-
SDF
2 stops13h 59m
Delta
Deal found 5/2$754
This Expedia deal was found by Cheapflights users on 5/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:15 pm
SDF
-
DUB
1 stop11h 35m
Finnair
Tue 9/159:40 am
DUB
-
SDF
2 stops18h 18m
Finnair
Deal found 5/6$755
This Air Canada deal was found by Cheapflights users on 5/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:35 am
SDF
-
DUB
2 stops21h 10m
Air Canada
Thu 9/179:50 am
DUB
-
SDF
2 stops41h 32m
Air Canada
Deal found 5/2$756

Find flight deals from Louisville to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) 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 May 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$721
(Air Canada)

One-way from

$348
(Delta)

Popular in

June

Cheapest in

December

Average price

$857
Provider with most accurate pricing for Louisville Intl-Dublin flight deals.
Provider most trusted by Cheapflights users for Louisville Intl-Dublin flights.
From Louisville Intl to Dublin
One-way flight from Louisville Intl to Dublin
Highest demand for flights based on searches. 24% potential increase in price ($235 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 May 7, 2026.
Use the filters below to find and compare flights from Louisville to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 9/23

10:05 am-10:40 am

1 stop19h 35m

Dublin

Mon 9/28

9:20 am-12:38 pm

2 stops32h 18m

$825

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 7/19

1:48 pm-7:20 am

1 stop12h 32m

Dublin

Wed 7/29

9:20 am-8:23 pm

2 stops16h 03m

$900

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 10/16

12:53 pm-8:45 am

1 stop14h 52m

Dublin

Sat 10/24

11:00 am-7:01 pm

1 stop13h 01m

$907

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 8/14

6:15 am-7:45 am

2 stops20h 30m

Dublin

Sun 8/23

9:20 am-10:57 pm

2 stops18h 37m

$907

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 8/13

10:34 am-9:15 am

2 stops17h 41m

Dublin

Sun 8/23

5:55 am-5:15 pm

2 stops16h 20m

$908

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 10/16

8:20 am-9:15 am

2 stops19h 55m

Dublin

Sat 10/24

8:55 am-12:02 am

2 stops20h 07m

$908
Quickest round-trip

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 10/16

3:24 pm-8:45 am

1 stop12h 21m

Dublin

Sat 10/24

3:00 pm-12:02 am

2 stops14h 02m

$911

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 5/27

10:02 am-9:45 am

1 stop18h 43m

Dublin

Wed 6/3

9:20 am-5:03 pm

2 stops36h 43m

$985

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 7/30

9:00 am-7:20 am

2 stops17h 20m

Dublin

Sat 8/8

9:50 am-5:03 pm

2 stops36h 13m

$997
Cheapest one-way

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 9/21

10:15 am-10:00 am

1 stop18h 45m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Louisville 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 Louisville to Dublin in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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 Louisville-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-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 Louisville-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 Louisville to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Louisville 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 Louisville to Dublin

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

Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Dublin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from Louisville to Dublin (average of $507). Flying from Louisville to Dublin in June is currently the most expensive (average of $1,131). 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.

How much does it cost to fly round-trip from Louisville to Dublin?

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 May 7, 2026.
Read reviews from past customers who have flown Delta,KLM, andUnited Airlines from Louisville to Dublin. 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.

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Louisville to Dublin?

    Departing from Louisville to Dublin will take you 19h 35m. There are 3757 mi between Louisville and Dublin.

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

    Currently priced at $484, KLM will fly you from Louisville to Dublin and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $488 and $504, respectively. These flights start at 33% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $294 on American Airlines. Other airlines that offer cheap prices include Aer Lingus from $426 and Delta from $452 one-way.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Louisville to Dublin (average of $507). Flying from Louisville to Dublin in June is currently the most expensive (average of $1,131). 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
Leixlip

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Top 5 airlines flying from Louisville to Dublin

Discover the top 5 airlines that operate flights from Louisville 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 May 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$484Average$636FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$488Average$798FlexibilityNo cancel feeOn-time71%
DeltaCheapest$504Average$800FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$532Average$873FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$963Average$1,184FlexibilityNo cancel feeOn-timeN/A

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