What is the cheapest airline that flies from Louisville Intl to Ireland?

United Airlines, KLM, and Delta are the most popular carriers operating from Louisville Intl to Ireland

What airlines fly to Ireland?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Ireland from Louisville according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 8 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Ireland?

Prices for flights from Louisville Intl Airport to Ireland refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to Ireland?

As of April 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to Ireland.

How old do you have to be to fly from Louisville Intl Airport to Ireland?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Ireland.

What documentation or ID do you need to fly to Ireland?

The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$357 Cheap Flights from Louisville to Ireland in 2026

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Find the cheapest flights from Louisville to Ireland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:11 pm - 4:20 pm

SDF

DUB

17h 09m

2 stops

8:25 pm - 5:09 pm

DUB

SDF

25h 44m

2 stops

$707British Airways

Sun, Sep 6 - Tue, Sep 15

2:43 pm - 12:05 pm

SDF

DUB

16h 22m

2 stops

8:25 pm - 5:09 pm

DUB

SDF

25h 44m

2 stops

$745British Airways

Sun, Sep 6 - Tue, Sep 15

6:11 pm - 2:30 pm

SDF

DUB

15h 19m

2 stops

7:30 pm - 5:09 pm

DUB

SDF

26h 39m

2 stops

$746British Airways

Sun, Sep 6 - Tue, Sep 15

8:20 am - 8:45 am

SDF

DUB

19h 25m

1 stop

10:00 am - 9:37 pm

DUB

SDF

16h 37m

1 stop

$750KLM

Sun, Sep 6 - Tue, Sep 15

6:11 pm - 11:50 am

SDF

DUB

12h 39m

1 stop

9:40 am - 10:58 pm

DUB

SDF

18h 18m

2 stops

$753Finnair

Sun, Sep 6 - Tue, Sep 15

6:11 pm - 11:50 am

SDF

DUB

12h 39m

1 stop

9:40 am - 10:58 pm

DUB

SDF

18h 18m

2 stops

$755Finnair

Sun, Sep 6 - Tue, Sep 15

12:17 pm - 6:30 am

SDF

DUB

13h 13m

1 stop

1:45 pm - 9:59 pm

DUB

SDF

13h 14m

2 stops

$782American Airlines

Tue, Aug 18 - Wed, Aug 26

4:40 pm - 2:40 pm

SDF

ORK

17h 00m

2 stops

6:15 am - 11:50 pm

ORK

SDF

22h 35m

2 stops

$1,230Delta

Tue, Jun 30 - Fri, Jul 10

7:05 am - 2:40 pm

SDF

ORK

26h 35m

2 stops

10:50 am - 8:54 am

ORK

SDF

27h 04m

2 stops

$1,231Delta

Tue, Jun 30 - Wed, Jul 8

2:19 pm - 10:20 am

SDF

ORK

15h 01m

2 stops

10:50 am - 12:26 am

ORK

SDF

18h 36m

2 stops

$1,235KLM

Tue, Jun 30 - Thu, Jul 9

British Airways flights from Louisville to Ireland

Our best British Airways deals on Louisville to Ireland flight tickets

British Airways

Sep 6

SDF6:11 pmLouisville Intl

17h 09m

2 stops

DUB4:20 pmDublin

Sep 15

DUB8:25 pmDublin

25h 44m

2 stops

SDF5:09 pmLouisville Intl

$707

British Airways

Sep 6

SDF2:43 pmLouisville Intl

16h 22m

2 stops

DUB12:05 pmDublin

Sep 15

DUB8:25 pmDublin

25h 44m

2 stops

SDF5:09 pmLouisville Intl

$745

British Airways

Sep 6

SDF6:11 pmLouisville Intl

15h 19m

2 stops

DUB2:30 pmDublin

Sep 15

DUB7:30 pmDublin

26h 39m

2 stops

SDF5:09 pmLouisville Intl

$746

KLM flights from Louisville to Ireland

Our best KLM deals on Louisville to Ireland flight tickets

KLM

Sep 6

SDF8:20 amLouisville Intl

19h 25m

1 stop

DUB8:45 amDublin

Sep 15

DUB10:00 amDublin

16h 37m

1 stop

SDF9:37 pmLouisville Intl

$750

KLM

Sep 23

SDF12:53 pmLouisville Intl

14h 52m

1 stop

DUB8:45 amDublin

Oct 2

DUB10:00 amDublin

12h 41m

1 stop

SDF5:41 pmLouisville Intl

$797

KLM

Jul 20

SDF4:47 pmLouisville Intl

10h 58m

1 stop

DUB8:45 amDublin

Jul 31

DUB10:00 amDublin

11h 47m

1 stop

SDF4:47 pmLouisville Intl

$874

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 9/6

6:11 pm-4:20 pm

2 stops17h 09m

Dublin

Tue 9/15

8:25 pm-5:09 pm

2 stops25h 44m

$707

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 9/6

2:43 pm-12:05 pm

2 stops16h 22m

Dublin

Tue 9/15

8:25 pm-5:09 pm

2 stops25h 44m

$745

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 9/6

6:11 pm-2:30 pm

2 stops15h 19m

Dublin

Tue 9/15

7:30 pm-5:09 pm

2 stops26h 39m

$746

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 9/6

8:20 am-8:45 am

1 stop19h 25m

Dublin

Tue 9/15

10:00 am-9:37 pm

1 stop16h 37m

$750

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 9/6

6:11 pm-11:50 am

1 stop12h 39m

Dublin

Tue 9/15

9:40 am-10:58 pm

2 stops18h 18m

$753

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 9/6

6:11 pm-11:50 am

1 stop12h 39m

Dublin

Tue 9/15

9:40 am-10:58 pm

2 stops18h 18m

$755

Quickest round-trip

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 8/18

12:17 pm-6:30 am

1 stop13h 13m

Dublin

Wed 8/26

1:45 pm-9:59 pm

2 stops13h 14m

$782

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Tue 6/30

4:40 pm-2:40 pm

2 stops17h 00m

Cork

Fri 7/10

6:15 am-11:50 pm

2 stops22h 35m

$1,230

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Tue 6/30

7:05 am-2:40 pm

2 stops26h 35m

Cork

Wed 7/8

10:50 am-8:54 am

2 stops27h 04m

$1,231

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Tue 6/30

2:19 pm-10:20 am

2 stops15h 01m

Cork

Thu 7/9

10:50 am-12:26 am

2 stops18h 36m

$1,235

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ireland?

In general, December is the cheapest month to fly from Louisville to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $507. If you aren’t able to travel to Ireland during the month of December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $531.

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $724 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Louisville for as low as $531 on momondo.

Can stopping save me money on Louisville to Ireland flights?

You could potentially save up to 7% on your flight if you consider stops on a Louisville to Ireland flight.

Cheap Louisville to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Ireland

Fastest flight time	10h 24m
Direct flights	None

The fastest flight from Louisville to Ireland takes 10h 24m

There are no direct flights from Louisville to Ireland. There are no popular flight routes from Louisville to Ireland.

Search flight deals

Frequently asked questions about flying from Louisville to Ireland

When did momondo last update prices for flights from Louisville Intl Airport to Ireland?
Prices for flights from Louisville Intl Airport to Ireland refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Ireland?
As of April 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to Ireland.
How old do you have to be to fly from Louisville Intl Airport to Ireland?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Ireland.
What documentation or ID do you need to fly to Ireland?
The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to Ireland

Compare and see reviews for airlines that fly from Louisville to Ireland with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $483	Free Cancellation	Rating 7.8 1,496 reviews	Search KLM flights
American Airlines	PriceFrom $485	Free Cancellation	Rating 7.1 11,565 reviews	Search American Airlines flights
Delta	PriceFrom $504	Free Cancellation	Rating 7.9 8,407 reviews	Search Delta flights
United Airlines	PriceFrom $532	Free Cancellation	Rating 7.4 9,580 reviews	Search United Airlines flights
Aer Lingus	PriceFrom $797	Free Cancellation	Rating 7.2 1,504 reviews	Search Aer Lingus flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Ireland?

It is quick and easy to find Louisville to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.

Can I find flights from Louisville to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Louisville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Louisville to Ireland?

momondo helps you find the best flight between Louisville and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Louisville to Ireland right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Louisville to Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Feeling lucky

Popular cities in Ireland

Flights to Dublinfrom $491

Flights to Shannon, Clarefrom $476

Flights to Corkfrom $604

Flights to Milltown (Kerry)from $856

Flights to Knockfrom $828

Flights to Donegalfrom $896

Cheap flights from Louisville to Ireland from $357

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Ireland departing on 6/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from Louisville to Ireland

Our best British Airways deals on Louisville to Ireland flight tickets

KLM flights from Louisville to Ireland

Our best KLM deals on Louisville to Ireland flight tickets

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See travel insights to Ireland from

How to get the cheapest flight ticket from Louisville to Ireland

What is the cheapest month to fly to Ireland?

How far in advance should I book a flight to Ireland?

Can stopping save me money on Louisville to Ireland flights?

What is the cheapest airline that flies from Louisville Intl to Ireland?

What airlines fly to Ireland?

Cheap Louisville to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Ireland

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to Ireland

Best airlines flying from Louisville to Ireland

Compare and see reviews for airlines that fly from Louisville to Ireland with momondo

Why use momondo?

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo

Louisville flight routes

According to popular flight searches on momondo this year

Ireland flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Ireland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ireland

List of cabin classes available on flights landing in Ireland. Availability may vary depending on flight origin and airline.

Complete your trip to Ireland

Explore popular destinations other users love

According to popular flight searches on momondo this year