SDF - DUB

$371 Find Cheap Flights from Louisville to Dublin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Dublin departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Dublin.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Dublin.
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Everything you should know

Cheapest round-trip
$418
Overall average: $739
British Airways
Mon 3/9Mon 3/16
SDF - DUB • 2 stops
Cheapest one-way
$371
Multiple Airlines
Mon 4/6
SDF - DUB • 3 stops
Top airlines
American Airlines
Cheapest • from $428 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
December
Cheapest • 35% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Dublin!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to Dublin (SDF-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Dublin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Dublin

Mon, Mar 9 - Mon, Mar 16
British Airways Logo
6:16 pm - 5:05 pmSDF-DUB
18h 49m2 stops
British Airways Logo
8:40 pm - 9:25 pmDUB-SDF
28h 45m2 stops
$418British Airways
Find Deal
Mon, Feb 9 - Thu, Feb 19
American Airlines Logo
7:13 pm - 1:35 pmSDF-DUB
13h 22m2 stops
American Airlines Logo
11:30 am - 9:14 pmDUB-SDF
14h 44m1 stop
$424American Airlines
Find Deal
Mon, Feb 9 - Thu, Feb 19
American Airlines Logo
7:13 pm - 1:35 pmSDF-DUB
13h 22m2 stops
American Airlines Logo
11:30 am - 12:24 amDUB-SDF
17h 54m2 stops
$428American Airlines
Find Deal
Mon, Feb 9 - Thu, Feb 19
American Airlines Logo
11:16 am - 8:40 amSDF-DUB
16h 24m1 stop
American Airlines Logo
11:30 am - 9:14 pmDUB-SDF
14h 44m1 stop
$433American Airlines
Find Deal
Sun, Mar 1 - Wed, Mar 11
Delta Logo
7:50 am - 8:45 amSDF-DUB
19h 55m2 stops
Delta Logo
9:45 am - 9:00 pmDUB-SDF
15h 15m1 stop
$438Delta
Find Deal
Wed, Jan 28 - Sun, Feb 1
American Airlines Logo
7:13 pm - 2:05 pmSDF-DUB
13h 52m2 stops
American Airlines Logo
11:30 am - 9:16 pmDUB-SDF
14h 46m1 stop
$449American Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
American Airlines Logo
7:13 pm - 1:35 pmSDF-DUB
13h 22m2 stops
American Airlines Logo
11:30 am - 11:19 pmDUB-SDF
16h 49m2 stops
$453American Airlines
Find Deal
Mon, Mar 9 - Mon, Mar 16
United Airlines Logo
2:35 pm - 10:20 amSDF-DUB
15h 45m1 stop
United Airlines Logo
8:00 am - 7:42 pmDUB-SDF
39h 42m2 stops
$455United Airlines
Find Deal
Mon, Mar 9 - Mon, Mar 16
KLM Logo
1:56 pm - 9:20 amSDF-DUB
15h 24m1 stop
KLM Logo
9:45 am - 10:55 pmDUB-SDF
17h 10m1 stop
$458KLM
Find Deal
Thu, Dec 11 - Mon, Dec 15
Lufthansa Logo
2:05 pm - 10:20 amSDF-DUB
15h 15m1 stop
Lufthansa Logo
5:10 am - 10:29 pmDUB-SDF
22h 19m2 stops
$472Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for Louisville to Dublin flights

Get data-powered insights and trends into flights from Louisville to Dublin to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Louisville to Dublin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Dublin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Dublin is December, where tickets cost $531 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,313 and $1,004 respectively.

How far in advance should I book a flight from Louisville to Dublin?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Dublin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to Dublin, you should book around 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$371
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Louisville to Dublin

When to book flights from Louisville to Dublin

Are your dates flexible? Find out the best times to travel from Louisville to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to Dublin

  • What is the cheapest flight from Louisville to Dublin?

    In the last 3 days, the lowest price for a flight from Louisville to Dublin was $371 for a one-way ticket and $418 for a round-trip.

  • Do I need a passport to fly between Louisville and Dublin?

    A passport is required to fly from Louisville to Dublin.

  • Which aircraft models fly most regularly from Louisville to Dublin?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Louisville to Dublin?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Louisville and Dublin, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Louisville to Dublin, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Louisville to Dublin are Delta and KLM. With an average price for the route of $840 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $640 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Louisville to Dublin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Dublin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Dublin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Dublin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Dublin with an airline and back to Louisville with another airline. Booking your flights between Louisville and DUB can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Dublin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dublin from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Louisville to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Dublin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Dublin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8011 reviews
7.9Entertainment
7.9Comfort
8.5Crew
8.1Boarding
7.3Food
Airline reviews

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

10.0 ExcellentHartaj, Nov 2025LGA - RDU
Read more Delta reviews

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

It all went very well, except for the ramp coordination upon landing in Boston. That, however, was resolved in fairly short order.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Everything you need to know for your flight from Louisville to Dublin

Information on your arrival and departure airports