$432 Cheap Flights from Louisville (SDF) to Dublin (DUB)

View $432 flight on Mon, May 12, 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Dublin Airport (DUB)

Find available prices by choosing your travel dates.

Cheap Flights from Louisville to Dublin (SDF-DUB)

Prices were available within the past 7 days and start at $432 for one-way flights and $564 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, Aug 17 - Tue, Aug 26
SDF
Louisville
DUB
Dublin
$564 Roundtrip, found 2 days ago
$564
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sun, Aug 17 from Louisville to Dublin, returning Tue, Aug 26, priced at $564 found 2 days ago
United
Wed, Mar 4 - Wed, Mar 11
SDF
Louisville
DUB
Dublin
$567 Roundtrip, found 1 day ago
$567
Roundtrip
found 1 day ago
Select United flight, departing Wed, Mar 4 from Louisville to Dublin, returning Wed, Mar 11, priced at $567 found 1 day ago
Air Canada
Sun, Aug 17 - Tue, Aug 26
SDF
Louisville
DUB
Dublin
$571 Roundtrip, found 2 days ago
$571
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sun, Aug 17 from Louisville to Dublin, returning Tue, Aug 26, priced at $571 found 2 days ago
Air Canada
Wed, Aug 13 - Tue, Aug 26
SDF
Louisville
DUB
Dublin
$571 Roundtrip, found 5 hours ago
$571
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Wed, Aug 13 from Louisville to Dublin, returning Tue, Aug 26, priced at $571 found 5 hours ago
Delta
Sun, Mar 8 - Tue, Mar 17
SDF
Louisville
DUB
Dublin
$572 Roundtrip, found 1 day ago
$572
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Mar 8 from Louisville to Dublin, returning Tue, Mar 17, priced at $572 found 1 day ago
American Airlines
Wed, Mar 4 - Wed, Mar 11
SDF
Louisville
DUB
Dublin
$572 Roundtrip, found 1 day ago
$572
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Mar 4 from Louisville to Dublin, returning Wed, Mar 11, priced at $572 found 1 day ago
Air Canada
Wed, Oct 8 - Wed, Nov 5
SDF
Louisville
DUB
Dublin
$573 Roundtrip, found 3 days ago
$573
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Oct 8 from Louisville to Dublin, returning Wed, Nov 5, priced at $573 found 3 days ago
United
Sun, Aug 10 - Tue, Aug 19
SDF
Louisville
DUB
Dublin
$576 Roundtrip, found 8 hours ago
$576
Roundtrip
found 8 hours ago
Select United flight, departing Sun, Aug 10 from Louisville to Dublin, returning Tue, Aug 19, priced at $576 found 8 hours ago
Delta
Sat, Oct 25 - Wed, Nov 5
SDF
Louisville
DUB
Dublin
$577 Roundtrip, found 1 day ago
$577
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 25 from Louisville to Dublin, returning Wed, Nov 5, priced at $577 found 1 day ago
Lufthansa
Sun, Aug 17 - Tue, Aug 26
SDF
Louisville
DUB
Dublin
$586 Roundtrip, found 2 days ago
$586
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sun, Aug 17 from Louisville to Dublin, returning Tue, Aug 26, priced at $586 found 2 days ago
Flights from Louisville (SDF) to Dublin (DUB)
Origin airport
Louisville Intl.
Destination airport
Dublin
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, United
Roundtrip price
$564
Distance
3759 mi

Louisville to Dublin Flights

The cheapest times to fly from Louisville to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Louisville to Dublin are during the month of August. You can find some of the cheapest flights from Louisville to Dublin with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Louisville to Dublin

Sunday is one of the best days to book for cheap flights from Louisville to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Louisville to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Louisville to Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from $432 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Louisville to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Louisville to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Dublin Airport (DUB) cost?
Discover the latest flight deals from SDF to DUB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SDF to DUB?
The cheapest flights from SDF to DUB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SDF to DUB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SDF to DUB. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Louisville Intl. Airport (SDF) to Dublin Airport (DUB)?
You’ll need to hop on a flight with a layover when traveling from Louisville Intl. Airport (SDF) to Dublin Airport (DUB). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from SDF to DUB?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louisville Intl. Airport (SDF) to Dublin Airport (DUB)?
Select a flight from Louisville Intl. Airport (SDF) to Dublin Airport (DUB) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Dublin Airport (DUB) last-minute?
Waiting until right before your break to book a ticket from SDF to DUB generally means paying more. While you may find some last-minute deals, they aren’t always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book a SDF to DUB flight and hotel package?
You can save money by securing a SDF to DUB flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one convenient place. After selecting your preferred flights and accommodations, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Dublin Airport (DUB)?
Usually, it’s possible to reschedule or cancel your SDF to DUB flight. However, if it’s been more than 24 hours since booking, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are allowed and whether any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.