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$304+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Dublin are usually found in November or February, booked 38 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap 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 August 14, 2025.

Round-trip from

$532
(United Airlines)

One-way from

$304
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$904
From Louisville Intl to Dublin
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One-way flight from Louisville Intl to Dublin
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Highest demand for flights based on searches. 22% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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 12/82:02 pmSDF - DUB
1 stop13h 08mUnited Airlines
Tue 12/1610:40 amDUB - SDF
1 stop16h 49mUnited Airlines
Deal found 8/12$532
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 9/67:36 pmSDF - DUB
2 stops31h 09mUnited Airlines
Wed 9/179:50 amDUB - SDF
2 stops32h 27mUnited Airlines
Deal found 8/14$613
This Air Canada deal was found by Cheapflights users on 8/14. 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 10/136:15 amSDF - DUB
2 stops21h 00mAir Canada
Fri 10/249:50 amDUB - SDF
2 stops34h 01mAir Canada
Deal found 8/14$620
This Scandinavian Airlines deal was found by Cheapflights users on 8/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1412:54 pmSDF - DUB
2 stops41h 56mScandinavian Airlines
Wed 10/2212:40 pmDUB - SDF
2 stops40h 19mScandinavian Airlines
Deal found 8/14$632
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/1310:55 amSDF - DUB
1 stop17h 50mUnited Airlines
Wed 10/229:50 amDUB - SDF
2 stops29h 11mUnited Airlines
Deal found 8/14$636
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/132:03 pmSDF - DUB
1 stop12h 07mUnited Airlines
Fri 10/2411:35 amDUB - SDF
1 stop11h 58mUnited Airlines
Deal found 8/14$641
This Scandinavian Airlines deal was found by Cheapflights users on 8/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1412:54 pmSDF - DUB
2 stops41h 56mScandinavian Airlines
Sun 10/1910:15 amDUB - SDF
2 stops42h 44mScandinavian Airlines
Deal found 8/14$662
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 10/162:03 pmSDF - DUB
1 stop12h 07mUnited Airlines
Tue 10/219:50 amDUB - SDF
2 stops17h 40mUnited Airlines
Deal found 8/14$686
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 10/161:58 pmSDF - DUB
1 stop14h 47mUnited Airlines
Wed 10/2211:35 amDUB - SDF
1 stop10h 38mUnited Airlines
Deal found 8/14$691
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 9/61:06 pmSDF - DUB
2 stops12h 24mAmerican Airlines
Wed 9/171:45 pmDUB - SDF
2 stops13h 37mAmerican Airlines
Deal found 8/12$696

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 August 14, 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

Mon 2/9

10:35 am-8:10 am

1 stop16h 35m

Dublin

Thu 2/19

10:40 am-8:14 pm

1 stop14h 34m

$532

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 12/8

2:02 pm-8:10 am

1 stop13h 08m

Dublin

Tue 12/16

10:40 am-10:29 pm

1 stop16h 49m

$532

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 2/9

7:13 pm-1:35 pm

2 stops13h 22m

Dublin

Thu 2/19

11:30 am-9:47 pm

2 stops15h 17m

$534

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sat 10/11

6:58 pm-10:00 am

2 stops34h 02m

$304

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 9/18

6:34 pm-8:45 pm

2 stops45h 11m

$351

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 9/4

2:20 pm-7:10 am

1 stop11h 50m

$463

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sat 10/11

7:26 am-6:30 am

1 stop18h 04m

$463

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 9/18

7:35 am-8:10 am

1 stop19h 35m

$538

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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 August 8, 2025.

Booking 38 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, November is the cheapest month in which you can book a flight from Louisville to Dublin (average of $509). Flying from Louisville to Dublin in June is currently the most expensive (average of $925). 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 August 14, 2025.

It’s typically best to fly out from Louisville to Dublin at noon. Doing so could potentially save you 16% 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 August 14, 2025.
Read reviews from past customers who have flown Delta, KLM, and Scandinavian 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
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,381 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.4
Good
1,468 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Currently priced at $523, 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 Delta and United Airlines - these airlines can fly you to your destination from $536 and $562, respectively. These flights start at 37% lower than the current average price 3 months from now.

  • 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, November is the cheapest month in which you can book a flight from Louisville to Dublin (average of $509). Flying from Louisville to Dublin in June is currently the most expensive (average of $925). 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
Swords
Wicklow
Leixlip

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$523Average$658FlexibilityNo cancel feeOn-time75%
DeltaCheapest$536Average$855FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$562Average$904FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$567Average$1,007FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$662Average$679FlexibilityNo cancel feeOn-time77%

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