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$405+ Cheap flights from Louisville (SDF) to Dublin (DUB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Louisville Intl to Dublin are usually found in December or November, booked 12 days in advance, depart on a Monday or Tuesday and return on a Monday

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 December 2, 2025.

This FlightHub deal was found by Cheapflights users on 12/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:38 pmSDF - DUB
1 stop12h 52mLufthansa
Tue 12/99:10 amDUB - SDF
2 stops19h 22mLufthansa
Deal found 12/2$468
This Cheapflightsfares deal was found by Cheapflights users on 12/1. 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.
Wed 12/31:38 pmSDF - DUB
1 stop15h 17mLufthansa
Sun 12/75:10 amDUB - SDF
2 stops22h 19mLufthansa
Deal found 12/1$472
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/312:20 pmSDF - DUB
2 stops14h 10mUnited Airlines
Sun 12/79:00 amDUB - SDF
2 stops16h 42mUnited Airlines
Deal found 12/1$483
This KLM deal was found by Cheapflights users on 12/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:16 pmSDF - DUB
2 stops12h 29mKLM
Tue 12/98:50 amDUB - SDF
2 stops17h 23mKLM
Deal found 12/2$486
This Air Canada deal was found by Cheapflights users on 12/1. 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 12/312:20 pmSDF - DUB
3 stops16h 55mMultiple Airlines
Sun 12/79:00 amDUB - SDF
2 stops16h 42mMultiple Airlines
Deal found 12/1$1,009
This Delta deal was found by Cheapflights users on 12/2. 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 12/1510:37 amSDF - DUB
1 stop16h 08mDelta
Mon 1/51:25 pmDUB - SDF
2 stops33h 07mDelta
Deal found 12/2$1,077
This KAYAK deal was found by Cheapflights users on 12/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/151:50 pmSDF - DUB
1 stop13h 20mLufthansa
Mon 1/59:30 amDUB - SDF
1 stop18h 52mLufthansa
Deal found 12/2$1,139
This KAYAK deal was found by Cheapflights users on 12/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:05 pmSDF - DUB
1 stop15h 15mLufthansa
Mon 1/59:30 amDUB - SDF
1 stop18h 52mLufthansa
Deal found 12/2$1,189
This United Airlines deal was found by Cheapflights users on 12/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:50 pmSDF - DUB
2 stops15h 30mUnited Airlines
Mon 1/512:05 pmDUB - SDF
1 stop12h 06mUnited Airlines
Deal found 12/2$1,194

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 December 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$410
(Ovago)

Popular in

June

Cheapest in

December

Average price

$531
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
Highest demand for flights based on searches. 26% potential increase in price ($290 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 2, 2025.
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

Sun 3/1

8:55 am-7:45 am

1 stop17h 50m

Dublin

Wed 3/11

9:45 am-11:57 pm

1 stop18h 12m

$433

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 1/12

7:20 pm-3:20 pm

2 stops15h 00m

Dublin

Tue 1/27

10:55 am-11:19 pm

2 stops17h 24m

$434

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 1/15

7:13 pm-5:25 pm

2 stops17h 12m

Dublin

Thu 1/22

8:40 pm-6:39 pm

2 stops26h 59m

$435

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 3/1

8:55 am-8:45 am

2 stops18h 50m

Dublin

Wed 3/11

9:45 am-9:00 pm

1 stop15h 15m

$438

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sat 2/28

5:49 pm-7:45 am

1 stop32h 56m

Dublin

Wed 3/11

9:45 am-9:00 pm

1 stop15h 15m

$439

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 1/26

11:10 am-8:10 am

1 stop16h 00m

Dublin

Mon 2/2

9:00 am-12:59 pm

2 stops32h 59m

$455

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 3/9

9:55 am-10:20 am

1 stop20h 25m

Dublin

Mon 3/16

8:00 am-10:13 pm

2 stops42h 13m

$455

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sat 2/28

5:54 pm-8:10 am

1 stop33h 16m

Dublin

Wed 3/11

8:00 am-4:46 pm

2 stops36h 46m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Dublin flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 28, 2025.

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 $432). Flying from Louisville to Dublin in June is currently the most expensive (average of $788). 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 SDF to DUB?

Find hourly flight availability from Louisville 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 December 2, 2025.

It’s typically best to fly out from Louisville to Dublin at noon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Louisville to Dublin. Price data was last updated on December 16, 2024.

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

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 December 2, 2025.
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
8,013 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

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
8,013 reviews
Delta
7.9
Good
8,013 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

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
1,426 reviews
Delta
7.9
Good
8,013 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

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
9,063 reviews
Delta
7.9
Good
8,013 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

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
11,044 reviews
Delta
7.9
Good
8,013 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

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.
Aer Lingus
7.2
Good
1,384 reviews
Delta
7.9
Good
8,013 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

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 15h. There are 3757 mi between Louisville and Dublin. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Scandinavian Airlines and Delta - these airlines can fly you to your destination from $491 and $504, respectively. These flights start at 40% 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 $386 on Aer Lingus. Other airlines that offer cheap prices include American Airlines from $403 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 $432). Flying from Louisville to Dublin in June is currently the most expensive (average of $788). 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
Wicklow
Leixlip

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Louisville to Dublin

Discover the top 6 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 December 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$483Average$640FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$491Average$677FlexibilityNo cancel feeOn-time77%
DeltaCheapest$504Average$789FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$536Average$1,050FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$541Average$892FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$752Average$1,371FlexibilityNo cancel feeOn-timeN/A

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