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$246+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$490
(FlightHub)

One-way from

$246
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$877
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. 23% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This KLM deal was found by Cheapflights users on 9/13. 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.
Wed 10/2212:54 pmSDF - DUB
1 stop14h 51mKLM
Wed 11/59:45 amDUB - SDF
1 stop19h 16mKLM
Deal found 9/13$502
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/221:58 pmSDF - DUB
2 stops16h 12mUnited Airlines
Wed 11/510:40 amDUB - SDF
1 stop15h 04mUnited Airlines
Deal found 9/13$507
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 12/512:20 pmSDF - DUB
2 stops14h 10mUnited Airlines
Fri 12/1212:05 pmDUB - SDF
1 stop13h 37mUnited Airlines
Deal found 9/14$552
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/1311:00 amSDF - DUB
2 stops15h 30mUnited Airlines
Tue 11/189:30 amDUB - SDF
2 stops16h 14mUnited Airlines
Deal found 9/13$557
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/282:35 pmSDF - DUB
1 stop15h 45mUnited Airlines
Tue 11/412:05 pmDUB - SDF
1 stop12h 22mUnited Airlines
Deal found 9/13$582
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/242:03 pmSDF - DUB
1 stop15h 17mUnited Airlines
Fri 10/319:30 amDUB - SDF
1 stop13h 22mUnited Airlines
Deal found 9/14$622
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/58:45 amSDF - DUB
2 stops18h 30mUnited Airlines
Wed 10/159:50 amDUB - SDF
2 stops36h 23mUnited Airlines
Deal found 9/13$625
This Booking.com deal was found by Cheapflights users on 9/13. 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.
Sun 10/58:45 amSDF - DUB
2 stops42h 00mAir Canada
Wed 10/159:50 amDUB - SDF
2 stops15h 43mAir Canada
Deal found 9/13$632
This KLM deal was found by Cheapflights users on 9/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/54:18 pmSDF - DUB
1 stop13h 27mKLM
Wed 10/1510:00 amDUB - SDF
1 stop17h 54mKLM
Deal found 9/14$647
This KLM deal was found by Cheapflights users on 9/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/512:48 pmSDF - DUB
1 stop14h 57mMultiple Airlines
Wed 10/1512:00 pmDUB - SDF
2 stops14h 48mMultiple Airlines
Deal found 9/14$651

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 September 15, 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

Wed 10/22

5:48 pm-9:45 am

1 stop10h 57m

Dublin

Wed 11/5

12:05 pm-7:27 pm

1 stop12h 22m

$502

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/22

12:54 pm-8:45 am

1 stop14h 51m

Dublin

Wed 11/5

9:45 am-12:01 am

1 stop19h 16m

$502

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 2/9

2:05 pm-8:10 am

1 stop13h 05m

Dublin

Thu 2/19

10:40 am-10:09 pm

1 stop16h 29m

$502

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 10/28

3:11 pm-9:20 am

2 stops14h 09m

Dublin

Tue 11/4

10:45 am-9:15 pm

2 stops15h 30m

$507

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/22

12:54 pm-9:15 am

2 stops15h 21m

Dublin

Wed 11/5

9:45 am-12:01 am

1 stop19h 16m

$507

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 10/28

4:25 pm-9:20 am

1 stop12h 55m

Dublin

Tue 11/4

10:45 am-10:34 pm

2 stops16h 49m

$507

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 3/9

1:55 pm-10:20 am

1 stop16h 25m

Dublin

Mon 3/16

8:00 am-2:47 pm

2 stops34h 47m

$524

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/22

5:31 pm-11:30 am

2 stops36h 59m

$246

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/22

9:57 am-5:10 am

1 stop14h 13m

$398

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/15

10:55 am-10:15 am

3 stops18h 20m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 September 12, 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 $923). 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 September 15, 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.

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 September 15, 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
8.0
Very good
7,954 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,385 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,954 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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!
Aer Lingus
7.2
Good
1,270 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.

  • How long is the flight from Louisville to Dublin?

    Departing from Louisville to Dublin will take you 10h 57m. 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 $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 $552, respectively. These flights start at 38% 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 $923). 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

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$523Average$658FlexibilityNo cancel feeOn-time75%
DeltaCheapest$536Average$865FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$552Average$886FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$567Average$1,059FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$662Average$679FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$752Average$1,371FlexibilityNo cancel feeOn-timeN/A

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