HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dublin

$270+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DUB
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Dublin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Louisville Intl to Dublin are usually found in November or February, booked 27 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 July 3, 2025.

Round-trip from

$511
(Air Canada)

One-way from

$364
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$982
From Louisville Intl to Dublin
Search Deals
One-way flight from Louisville Intl to Dublin
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($220 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 July 2025
Search Deals

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 July 3, 2025.

This Air Canada deal was found by Cheapflights users on 7/1. 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.
Tue 11/1811:10 amSDF - DUB
2 stops15h 00mAir Canada
Wed 11/269:00 amDUB - SDF
2 stops39h 27mAir Canada
Deal found 7/1$511
This United Airlines deal was found by Cheapflights users on 7/1. 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 10/2911:10 amSDF - DUB
1 stop17h 00mUnited Airlines
Wed 11/59:00 amDUB - SDF
2 stops14h 52mUnited Airlines
Deal found 7/1$527
This KLM deal was found by Cheapflights users on 7/2. 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 8/512:50 pmSDF - DUB
1 stop14h 55mKLM
Sat 8/2311:00 amDUB - SDF
1 stop16h 46mKLM
Deal found 7/2$587
This Delta deal was found by Cheapflights users on 7/1. 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.
Sat 11/15:45 pmSDF - DUB
1 stop34h 00mDelta
Sun 11/99:45 amDUB - SDF
1 stop14h 16mDelta
Deal found 7/1$588
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2012:45 pmSDF - DUB
2 stops42h 05mScandinavian Airlines
Wed 8/2712:40 pmDUB - SDF
2 stops40h 16mScandinavian Airlines
Deal found 7/1$599
This Booking.com deal was found by Cheapflights users on 6/30. 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.
Thu 11/69:00 amSDF - DUB
2 stops17h 10mMultiple Airlines
Mon 11/1711:45 amDUB - SDF
2 stops37h 29mMultiple Airlines
Deal found 6/30$600

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 July 3, 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

Tue 11/18

11:10 am-7:10 am

2 stops15h 00m

Dublin

Wed 11/26

9:00 am-7:27 pm

2 stops39h 27m

$511

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/29

11:10 am-8:10 am

1 stop17h 00m

Dublin

Wed 11/5

9:00 am-6:52 pm

2 stops14h 52m

$527

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 8/5

12:50 pm-8:45 am

1 stop14h 55m

Dublin

Sat 8/23

11:00 am-10:46 pm

1 stop16h 46m

$587

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sat 11/1

5:45 pm-7:45 am

1 stop34h 00m

Dublin

Mon 11/10

10:45 am-9:00 pm

1 stop15h 15m

$588

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 8/20

12:45 pm-11:50 am

2 stops42h 05m

Dublin

Wed 8/27

12:40 pm-11:56 pm

2 stops40h 16m

$599

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 11/6

9:00 am-7:10 am

2 stops17h 10m

Dublin

Mon 11/17

11:45 am-8:14 pm

2 stops37h 29m

$600

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 10/1

7:45 am-7:50 pm

2 stops31h 05m

$270

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 9/5

6:12 pm-10:40 am

1 stop11h 28m

$453

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 8/1

12:50 pm-10:00 am

2 stops16h 10m

$463

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Fri 8/1

11:25 am-10:20 am

2 stops17h 55m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 12 results
1
2

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 June 27, 2025.

Booking 27 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 $929). 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 July 3, 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 July 3, 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
7,983 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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
1,366 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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
8,861 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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!
Scandinavian Airlines
7.3
Good
1,415 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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!
Air Canada
7.1
Good
9,678 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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 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 $511, Air Canada will fly you from Louisville to Dublin and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and KLM - these airlines can fly you to your destination from $527 and $587, respectively. These flights start at 39% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $453 on Aer Lingus. Other airlines that offer cheap prices include KLM from $463 and British Airways from $1,724 one-way.

  • 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 $929). 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 Louisville?

Book flights to Louisville 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 4 airlines flying from Louisville to Dublin

Discover the top 4 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$519Average$874FlexibilityNo cancel feeOn-time69%
KLMCheapest$523Average$856FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$552Average$958FlexibilityNo cancel feeOn-time71%
DeltaCheapest$554Average$889FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.