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$399+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
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 January 26, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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 3/15:35 am
SDF
-
DUB
1 stop21h 35m
United Airlines
Wed 3/118:00 am
DUB
-
SDF
2 stops36h 46m
United Airlines
Deal found 1/26$458
This United Airlines deal was found by Cheapflights users on 1/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/262:10 pm
SDF
-
DUB
2 stops36h 00m
United Airlines
Mon 2/29:00 am
DUB
-
SDF
2 stops39h 43m
United Airlines
Deal found 1/25$466
This Ovago deal was found by Cheapflights users on 1/25. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:12 pm
SDF
-
DUB
2 stops17h 48m
British Airways
Tue 3/310:55 am
DUB
-
SDF
2 stops15h 31m
British Airways
Deal found 1/25$467
This oojo deal was found by Cheapflights users on 1/25. 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.
Sat 2/2812:00 pm
SDF
-
DUB
2 stops19h 45m
British Airways
Sat 3/78:40 pm
DUB
-
SDF
2 stops30h 40m
British Airways
Deal found 1/25$468
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:13 pm
SDF
-
DUB
2 stops13h 22m
American Airlines
Thu 2/1911:30 am
DUB
-
SDF
1 stop14h 43m
American Airlines
Deal found 1/24$475
This United Airlines deal was found by Cheapflights users on 1/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/269:50 am
SDF
-
DUB
2 stops16h 40m
United Airlines
Sun 2/89:00 am
DUB
-
SDF
2 stops18h 30m
United Airlines
Deal found 1/25$477
This Mytrip deal was found by Cheapflights users on 1/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/12:05 pm
SDF
-
DUB
2 stops12h 05m
Multiple Airlines
Mon 2/95:10 am
DUB
-
SDF
2 stops23h 13m
Multiple Airlines
Deal found 1/26$479
This United Airlines deal was found by Cheapflights users on 1/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/41:50 pm
SDF
-
DUB
1 stop12h 40m
United Airlines
Sun 2/89:00 am
DUB
-
SDF
2 stops15h 43m
United Airlines
Deal found 1/25$481
This KLM deal was found by Cheapflights users on 1/26. 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.
Thu 2/267:05 am
SDF
-
DUB
1 stop19h 40m
KLM
Tue 3/35:55 am
DUB
-
SDF
2 stops16h 55m
KLM
Deal found 1/26$483
This KLM deal was found by Cheapflights users on 1/26. 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.
Sun 3/112:33 pm
SDF
-
DUB
1 stop15h 47m
Multiple Airlines
Wed 3/119:45 am
DUB
-
SDF
1 stop17h 24m
Multiple Airlines
Deal found 1/26$485

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$458
(United Airlines)

One-way from

$399
(United Airlines)

Popular in

June

Cheapest in

December

Average price

$679
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. 25% potential increase in price ($265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 26, 2026.
Use the filters below to find and compare flights from Louisville to Dublin that are best for you.

Fly from

Louisville

Fly to

Dublin

Route

Depart

Return

Price

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 2/26

5:35 am-8:10 am

1 stop21h 35m

Dublin

Mon 3/2

9:00 am-5:19 pm

2 stops37h 19m

$458

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 3/1

5:35 am-8:10 am

1 stop21h 35m

Dublin

Wed 3/11

8:00 am-4:46 pm

2 stops36h 46m

$458

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 3/9

2:35 pm-10:20 am

1 stop15h 45m

Dublin

Mon 3/16

8:00 am-2:47 pm

2 stops34h 47m

$458

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 2/6

11:10 am-8:10 am

1 stop16h 00m

Dublin

Wed 2/11

9:00 am-5:19 pm

2 stops37h 19m

$458

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 4/1

9:55 am-7:20 am

1 stop16h 25m

Dublin

Wed 4/15

9:50 am-2:47 pm

2 stops33h 57m

$462

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 3/10

1:58 pm-9:55 am

2 stops15h 57m

$399

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 3/10

9:00 am-6:10 am

3 stops17h 10m

$422

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 6/18

7:20 am-9:20 am

2 stops21h 00m

$583

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 6/18

12:17 pm-8:15 am

1 stop14h 58m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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?

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Dublin. Price data was last updated on January 23, 2026.

Booking 12 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 $423). Flying from Louisville to Dublin in June is currently the most expensive (average of $790). 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.

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 January 26, 2026.
Read reviews from past customers who have flown Delta, KLM, and United 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
8,113 reviews

Overall

7.9

Food

7.2

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
8,113 reviews
Delta
7.9
Good
8,113 reviews

Overall

7.9

Food

7.2

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
7.7
Good
1,442 reviews
Delta
7.9
Good
8,113 reviews

Overall

7.9

Food

7.2

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
9,199 reviews
Delta
7.9
Good
8,113 reviews

Overall

7.9

Food

7.2

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
7.2
Good
11,189 reviews
Delta
7.9
Good
8,113 reviews

Overall

7.9

Food

7.2

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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 21h 35m. 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 37% 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 $386 and United Airlines from $412 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 $423). Flying from Louisville to Dublin in June is currently the most expensive (average of $790). 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 4 airlines flying from Louisville to Dublin

Discover the top 4 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$483Average$636FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$488Average$889FlexibilityNo cancel feeOn-time71%
DeltaCheapest$504Average$794FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$533Average$892FlexibilityNo cancel feeOn-time69%

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