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$255+ Cheap flights from Kentucky 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap flight deals from Kentucky to Ireland

Keep the following information in mind while searching for Kentucky to Ireland flight deals. Data was last updated November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$424
(Expedia)

One-way from

$255
(CheapOair)

Popular in

June

Cheapest in

November

Average price

$533
Provider with most accurate pricing for Louisville Intl-Dublin flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Dublin flights.
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From Kentucky to Ireland
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One-way flight from Kentucky to Ireland
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Highest demand for flights based on searches. 23% potential increase in price ($264 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 November 2025
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Find flight deals from Kentucky to Ireland

Cheapest flights from Kentucky to Ireland
Explore the most affordable flight options available from Kentucky to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Expedia deal was found by Cheapflights users on 11/5. 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.
Sun 11/97:54 pmSDF - DUB
1 stop30h 51mKLM
Tue 11/259:45 amDUB - SDF
1 stop13h 56mKLM
Deal found 11/5$424
This KLM deal was found by Cheapflights users on 11/5. 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 11/97:52 pmCVG - DUB
1 stop30h 53mKLM
Tue 11/259:45 amDUB - CVG
1 stop13h 28mKLM
Deal found 11/5$424
This Delta deal was found by Cheapflights users on 11/3. 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 11/125:35 amTYS - DUB
1 stop21h 10mDelta
Wed 11/199:45 amDUB - TYS
1 stop12h 06mDelta
Deal found 11/3$433
This KLM deal was found by Cheapflights users on 11/5. 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.
Mon 12/12:27 pmCVG - DUB
1 stop12h 18mMultiple Airlines
Fri 12/1211:30 amDUB - CVG
1 stop14h 57mMultiple Airlines
Deal found 11/5$433
This Delta deal was found by Cheapflights users on 11/5. 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 11/116:00 amLEX - DUB
2 stops21h 45mDelta
Wed 11/1910:45 amDUB - LEX
2 stops28h 08mDelta
Deal found 11/5$438
This Delta deal was found by Cheapflights users on 11/5. 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.
Sun 11/96:00 amSDF - DUB
2 stops21h 45mDelta
Tue 11/259:45 amDUB - SDF
2 stops19h 21mDelta
Deal found 11/5$438
This KLM deal was found by Cheapflights users on 11/5. 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 12/32:20 pmCVG - DUB
2 stops13h 25mKLM
Wed 12/109:45 amDUB - CVG
1 stop14h 08mKLM
Deal found 11/5$438
This KLM deal was found by Cheapflights users on 11/5. 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 11/910:59 amCVG - DUB
1 stop16h 46mMultiple Airlines
Tue 11/256:00 amDUB - CVG
2 stops15h 31mMultiple Airlines
Deal found 11/5$442
This KLM deal was found by Cheapflights users on 11/5. 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.
Tue 11/111:05 pmLEX - DUB
2 stops14h 40mKLM
Wed 11/199:45 amDUB - LEX
1 stop28h 42mKLM
Deal found 11/5$443
This Flighttix deal was found by Cheapflights users on 11/5. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:07 pmSDF - DUB
2 stops32h 03mAir Canada
Mon 12/89:00 amDUB - SDF
2 stops18h 29mAir Canada
Deal found 11/5$446
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/117:05 amLEX - DUB
1 stop20h 05mUnited Airlines
Wed 11/199:00 amDUB - LEX
2 stops33h 17mUnited Airlines
Deal found 11/5$455
This Delta deal was found by Cheapflights users on 11/5. 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 11/2410:37 amSDF - DUB
1 stop16h 08mDelta
Mon 12/85:55 amDUB - SDF
2 stops23h 04mDelta
Deal found 11/5$456

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky 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 November 6, 2025.
Use the filters below to find and compare flights from Kentucky to Ireland that are best for you.

Fly from

Kentucky

Fly to

Ireland

Route

Depart

Return

Price

CincinnatiDublin

CVG - DUB

CVGDUB

Cincinnati Cinci./N. Kentucky

Sun 11/9

7:52 pm-7:45 am

1 stop30h 53m

Dublin

Tue 11/25

9:45 am-6:13 pm

1 stop13h 28m

$424

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Wed 11/12

5:35 am-7:45 am

1 stop21h 10m

Dublin

Thu 11/20

9:45 am-11:09 pm

1 stop18h 24m

$433

CincinnatiDublin

CVG - DUB

CVGDUB

Cincinnati Cinci./N. Kentucky

Mon 12/1

2:27 pm-7:45 am

1 stop12h 18m

Dublin

Fri 12/12

11:30 am-9:27 pm

1 stop14h 57m

$433

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Wed 11/12

5:35 am-7:45 am

1 stop21h 10m

Dublin

Fri 11/21

9:45 am-7:02 pm

1 stop14h 17m

$433

CincinnatiDublin

CVG - DUB

CVGDUB

Cincinnati Cinci./N. Kentucky

Wed 1/14

11:52 am-8:45 am

1 stop15h 53m

Dublin

Wed 1/21

10:45 am-5:09 pm

1 stop11h 24m

$433

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Wed 11/12

5:35 am-7:45 am

1 stop21h 10m

Dublin

Wed 11/19

9:45 am-4:51 pm

1 stop12h 06m

$433

CincinnatiDublin

CVG - DUB

CVGDUB

Cincinnati Cinci./N. Kentucky

Sun 11/9

10:59 am-8:45 am

1 stop16h 46m

Dublin

Tue 11/25

6:00 am-4:31 pm

2 stops15h 31m

$442

LexingtonDublin

LEX - DUB

LEXDUB

Lexington Blue Grass

Fri 1/30

8:35 am-8:10 am

1 stop18h 35m

Dublin

Sun 2/8

9:00 am-4:48 pm

2 stops36h 48m

$455

LexingtonDublin

LEX - DUB

LEXDUB

Lexington Blue Grass

Mon 2/2

10:30 am-8:10 am

1 stop16h 40m

Dublin

Sun 2/8

9:00 am-4:48 pm

2 stops36h 48m

$455

CincinnatiDublin

CVG - DUB

CVGDUB

Cincinnati Cinci./N. Kentucky

Mon 2/2

11:45 am-8:45 am

1 stop16h 00m

Dublin

Sun 2/8

1:25 pm-11:58 pm

2 stops15h 33m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 41 results
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Best time to book a flight from Kentucky to Ireland

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

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

Currently, November is the cheapest month in which you can book a flight from Kentucky to Ireland (average of $483). Flying from Kentucky to Ireland in June is currently the most expensive (average of $888). 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 KY to IE?

Find hourly flight availability from Kentucky 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 November 6, 2025.

One of the essential ways to save on airfare from Kentucky to Ireland is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 9% on airfare.

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

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

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

Related info for your journey

Find useful and relevant information for your journey from Kentucky to Ireland. 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 Kentucky to Ireland?

    A quick flight from Kentucky to Ireland can take about 18h 35m. KLM provides one of the quickest options available for as low as $455. There are 3720 mi between Kentucky and Ireland. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $349 on Icelandair. Other airlines that offer cheap prices include Lufthansa from $371 and SWISS from $394 one-way.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Kentucky to Ireland (average of $483). Flying from Kentucky to Ireland in June is currently the most expensive (average of $888). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kentucky to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Kentucky to Ireland

Discover the top 6 airlines that operate flights from Kentucky 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$485Average$907FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$491Average$679FlexibilityNo cancel feeOn-time77%
DeltaCheapest$504Average$881FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$531Average$866FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$541Average$970FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$752Average$1,228FlexibilityNo cancel feeOn-timeN/A

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