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$450+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
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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 April 28, 2026.

This British Airways deal was found by Cheapflights users on 4/27. 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.
Mon 9/77:08 pm
SDF
-
DUB
2 stops14h 22m
British Airways
Tue 9/1510:30 am
DUB
-
SDF
2 stops17h 28m
British Airways
Deal found 4/27$722
This KLM deal was found by Cheapflights users on 4/27. 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.
Mon 9/73:24 pm
SDF
-
DUB
1 stop12h 21m
KLM
Tue 9/1512:00 pm
DUB
-
SDF
1 stop11h 43m
KLM
Deal found 4/27$750
This Mytrip deal was found by Cheapflights users on 4/27. 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.
Mon 9/77:43 pm
SDF
-
DUB
2 stops21h 32m
Multiple Airlines
Tue 9/159:20 am
DUB
-
SDF
2 stops16h 16m
Multiple Airlines
Deal found 4/27$761
This Booking.com deal was found by Cheapflights users on 4/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:35 am
SDF
-
DUB
2 stops21h 10m
Air Canada
Wed 8/269:20 am
DUB
-
SDF
2 stops38h 59m
Air Canada
Deal found 4/26$773
This Finnair deal was found by Cheapflights users on 4/26. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:11 pm
SDF
-
DUB
1 stop12h 39m
Finnair
Wed 8/269:40 am
DUB
-
SDF
2 stops18h 21m
Finnair
Deal found 4/26$775
This Iberia deal was found by Cheapflights users on 4/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:11 pm
SDF
-
DUB
1 stop12h 39m
Iberia
Wed 8/269:30 am
DUB
-
SDF
1 stop18h 31m
Iberia
Deal found 4/26$778
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:00 am
SDF
-
DUB
1 stop19h 20m
United Airlines
Wed 12/29:00 am
DUB
-
SDF
3 stops20h 05m
United Airlines
Deal found 4/26$779
This KLM deal was found by Cheapflights users on 4/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:00 pm
SDF
-
DUB
1 stop15h 45m
KLM
Wed 12/25:55 am
DUB
-
SDF
2 stops15h 56m
KLM
Deal found 4/26$782
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:30 am
SDF
-
DUB
1 stop20h 00m
United Airlines
Wed 8/199:20 am
DUB
-
SDF
2 stops14h 36m
United Airlines
Deal found 4/26$783
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:05 am
SDF
-
DUB
2 stops16h 40m
United Airlines
Fri 8/219:20 am
DUB
-
SDF
2 stops14h 36m
United Airlines
Deal found 4/26$787
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 pm
SDF
-
DUB
1 stop10h 45m
United Airlines
Tue 8/259:50 am
DUB
-
SDF
2 stops14h 06m
United Airlines
Deal found 4/26$788
This Air Canada deal was found by Cheapflights users on 4/27. 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 9/710:15 am
SDF
-
DUB
3 stops16h 30m
Air Canada
Tue 9/159:20 am
DUB
-
SDF
3 stops16h 16m
Air Canada
Deal found 4/27$791

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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$722
(British Airways)

One-way from

$450
(American Airlines)

Popular in

June

Cheapest in

December

Average price

$665
Provider with most accurate pricing for Louisville Intl-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Dublin flights.
Search Deals
From Louisville Intl to Dublin
Search Deals
One-way flight from Louisville Intl to Dublin
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($234 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 28, 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

Mon 8/10

10:05 am-7:20 am

1 stop16h 15m

Dublin

Wed 8/19

9:20 am-6:56 pm

2 stops14h 36m

$783
Quickest round-trip

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 8/11

6:00 pm-9:45 am

1 stop10h 45m

Dublin

Mon 8/24

11:35 am-6:56 pm

1 stop12h 21m

$847

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 9/23

11:13 am-11:10 am

1 stop18h 57m

Dublin

Mon 9/28

9:20 am-11:15 pm

2 stops18h 55m

$849

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/14

12:53 pm-8:45 am

1 stop14h 52m

Dublin

Sat 10/24

11:00 am-8:50 am

1 stop26h 50m

$850

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 8/28

5:35 am-7:45 am

2 stops21h 10m

Dublin

Sat 9/5

9:50 am-4:51 pm

2 stops36h 01m

$879

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 10/16

11:00 am-7:20 am

2 stops15h 20m

Dublin

Sat 10/24

9:20 am-7:09 pm

2 stops14h 49m

$898

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 8/9

1:48 pm-7:20 am

1 stop12h 32m

Dublin

Sun 8/16

9:20 am-8:36 pm

2 stops16h 16m

$900

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 10/16

3:24 pm-8:45 am

1 stop12h 21m

Dublin

Sat 10/24

10:00 am-10:55 pm

1 stop17h 55m

$907

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 8/14

1:48 pm-10:40 am

1 stop15h 52m

Dublin

Sun 8/23

9:20 am-9:15 am

2 stops28h 55m

$909

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 7/19

10:05 am-7:45 am

2 stops16h 40m

Dublin

Mon 8/17

9:50 am-4:51 pm

2 stops36h 01m

$935

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Showing 1-10 of 18 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 April.
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 April 28, 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.
Delta
7.9
Good
8,466 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,466 reviews
Delta
7.9
Good
8,466 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.8
Good
1,510 reviews
Delta
7.9
Good
8,466 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,675 reviews
Delta
7.9
Good
8,466 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Aer Lingus
7.3
Good
1,536 reviews
Delta
7.9
Good
8,466 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,676 reviews
Delta
7.9
Good
8,466 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 16h 15m. There are 3757 mi between Louisville and Dublin.

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

    Currently priced at $483, 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 34% 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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$483Average$635FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$488Average$798FlexibilityNo cancel feeOn-time71%
DeltaCheapest$504Average$746FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$532Average$862FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$797Average$1,267FlexibilityNo cancel feeOn-timeN/A

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