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Ireland

$502+ Cheap flights from Louisville (SDF) to Ireland

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 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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Cheap flight deals from Louisville to Ireland

Keep the following information in mind while searching for Louisville to Ireland flight deals. Data was last updated September 15, 2025.

Round-trip from

$490
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$877
From Louisville Intl to Ireland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($262 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 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 American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:35 pmSDF - ORK
2 stops15h 35mAmerican Airlines
Tue 11/47:40 amORK - SDF
2 stops17h 39mAmerican Airlines
Deal found 9/13$559
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 American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:08 pmSDF - ORK
2 stops16h 17mAmerican Airlines
Thu 11/611:55 amORK - SDF
2 stops14h 52mAmerican Airlines
Deal found 9/14$609
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 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 September 15, 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

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

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Tue 10/28

3:35 pm-11:10 am

2 stops15h 35m

Cork

Tue 11/4

7:40 am-8:19 pm

2 stops17h 39m

$559

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Thu 10/30

7:08 pm-3:25 pm

2 stops16h 17m

Cork

Thu 11/6

11:55 am-9:47 pm

2 stops14h 52m

$609

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Wed 3/4

4:30 pm-11:25 pm

2 stops25h 55m

Cork

Sun 3/8

3:40 pm-5:42 pm

2 stops30h 02m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 17 results
1
2

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, November is the cheapest month in which you can book a flight from Louisville to Ireland (average of $509). Flying from Louisville to Ireland 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 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Ireland as you normally would.

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 September 15, 2025.
See what other customers who have flown with Delta, KLM, and United 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
8.0
Very good
7,956 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
7,956 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
8,931 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
7,956 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
1,271 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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 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 $502, United Airlines can have you in Ireland from Louisville in 10h 57m. Louisville and Ireland are separated by a distance of 3757 mi. This flight may include one or multiple stops.

  • 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, November is the cheapest month in which you can book a flight from Louisville to Ireland (average of $509). Flying from Louisville to Ireland 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

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Alternative routes for Louisville to Ireland

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Top 6 airlines flying from Louisville to Ireland

Discover the top 6 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$523Average$658FlexibilityNo cancel feeOn-time75%
DeltaCheapest$536Average$865FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$552Average$991FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$567Average$879FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$662Average$679FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$752Average$1,371FlexibilityNo cancel feeOn-timeN/A

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