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Ireland

$329+ Cheap flights from Louisville (SDF) to Ireland

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Louisville to Ireland

Cheapest flights from Louisville to Ireland
Explore the most affordable flight options available from Louisville to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/172:05 pmSDF - DUB
1 stop15h 15mLufthansa
Wed 12/2411:45 amDUB - SDF
2 stops34h 43mLufthansa
Deal found 12/15$1,023
This Delta deal was found by Cheapflights users on 12/15. 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.
Wed 12/1712:58 pmSDF - DUB
2 stops14h 47mDelta
Wed 12/245:55 amDUB - SDF
2 stops22h 08mDelta
Deal found 12/15$1,031
This Delta deal was found by Cheapflights users on 12/15. 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.
Tue 12/236:40 amSDF - DUB
1 stop20h 05mDelta
Tue 12/305:55 amDUB - SDF
2 stops17h 11mDelta
Deal found 12/15$1,427
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/262:22 pmSDF - DUB
1 stop14h 58mUnited Airlines
Thu 1/110:40 amDUB - SDF
1 stop14h 52mUnited Airlines
Deal found 12/15$1,683
This KAYAK deal was found by Cheapflights users on 12/15. 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.
Fri 12/266:11 pmSDF - DUB
1 stop32h 59mLufthansa
Sat 1/35:10 amDUB - SDF
2 stops19h 01mLufthansa
Deal found 12/15$1,721
This KAYAK deal was found by Cheapflights users on 12/15. 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.
Sat 12/272:22 pmSDF - DUB
1 stop14h 58mLufthansa
Thu 1/110:40 amDUB - SDF
1 stop16h 50mLufthansa
Deal found 12/15$1,755
This KAYAK deal was found by Cheapflights users on 12/15. 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.
Fri 12/262:22 pmSDF - DUB
2 stops14h 43mLufthansa
Thu 1/110:40 amDUB - SDF
1 stop11h 48mLufthansa
Deal found 12/15$1,791
This Cheapflightsfares deal was found by Cheapflights users on 12/15. 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.
Fri 12/262:00 pmSDF - ORK
2 stops28h 25mBritish Airways
Sat 1/37:40 amORK - SDF
2 stops19h 14mBritish Airways
Deal found 12/15$2,321

Find flight deals from Louisville to Ireland

Keep the following information in mind while searching for Louisville to Ireland flight deals. Data was last updated December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$456
(United Airlines)

One-way from

$329
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$483
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 Ireland
Search Deals
One-way flight from Louisville Intl to Ireland
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($315 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 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 Ireland 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 17, 2025.
Use the filters below to find and compare flights from Louisville to Ireland that are best for you.

Fly from

Louisville

Fly to

Ireland

Route

Depart

Return

Price

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 1/26

1:50 pm-7:30 am

1 stop12h 40m

Dublin

Mon 2/2

9:00 am-12:59 pm

2 stops32h 59m

$456

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 3/9

1:58 pm-8:10 am

1 stop14h 12m

Dublin

Mon 3/16

8:00 am-2:47 pm

2 stops34h 47m

$456

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 1/30

2:05 pm-8:10 am

1 stop13h 05m

Dublin

Fri 2/6

9:00 am-1:28 pm

2 stops33h 28m

$456

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 1/23

1:50 pm-7:30 am

1 stop12h 40m

Dublin

Mon 1/26

9:00 am-2:48 pm

2 stops34h 48m

$456

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 3/1

5:35 am-7:10 am

2 stops20h 35m

Dublin

Wed 3/11

8:00 am-7:31 pm

2 stops39h 31m

$462

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-5:19 pm

1 stop11h 39m

$480

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Mon 3/9

1:56 pm-9:20 am

1 stop15h 24m

Dublin

Mon 3/16

9:45 am-10:34 pm

1 stop16h 49m

$484

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Fri 1/30

7:13 pm-11:25 pm

2 stops23h 12m

Cork

Tue 2/3

7:40 am-10:05 pm

2 stops19h 25m

$687

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Fri 12/26

2:00 pm-11:25 pm

2 stops28h 25m

Cork

Sat 1/3

7:40 am-9:54 pm

2 stops19h 14m

$2,321

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 1/15

3:36 pm-6:10 pm

3 stops45h 34m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 18 results
1
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Best time to book a flight from Louisville to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland 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 Ireland

What is the cheapest month to book a flight from Louisville to Ireland?

Currently, December is the cheapest month in which you can book a flight from Louisville to Ireland (average of $423). Flying from Louisville to Ireland 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 IE?

Find hourly flight availability from Louisville to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 17, 2025.

One of the essential ways to save on airfare from Louisville to Ireland is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 17% on airfare.

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

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

Travelers seeking maximum savings on their Louisville to Ireland 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 Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated December 17, 2025.
See what other customers who have flown with Delta, KLM, and Scandinavian Airlines from Louisville to Ireland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Crew

8.5

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
8,006 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Crew

8.5

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
1,430 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Crew

8.5

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.
Scandinavian Airlines
7.4
Good
1,606 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Crew

8.5

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
9,092 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Crew

8.5

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
11,053 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Crew

8.5

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 Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Louisville to Ireland?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to Ireland.

  • How long is the flight from Louisville to Ireland?

    For as low as $456, United Airlines can have you in Ireland from Louisville in 12h 40m. Louisville and Ireland are separated by a distance of 3757 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Louisville to Ireland one-way?

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $386. American Airlines flights start at $403 while deals on United Airlines start at $412 one-way.

  • Can I find deals for flights from Louisville to Ireland that include hotel bookings?

    Yes. In addition to deals on Louisville to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Ireland.

  • Can I find deals for business class flights from Louisville to Ireland?

    Yes. Cheapflights offers flight deals from Louisville to Ireland 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 Ireland?

    Currently, December is the cheapest month in which you can book a flight from Louisville to Ireland (average of $423). Flying from Louisville to Ireland 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

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Alternative routes for Louisville to Ireland

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Top 5 airlines flying from Louisville to Ireland

Discover the top 5 airlines that operate flights from Louisville to Ireland. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$483Average$636FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$485Average$903FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$491Average$677FlexibilityNo cancel feeOn-time77%
DeltaCheapest$504Average$789FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$541Average$994FlexibilityNo cancel feeOn-time69%

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