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

Delta, American Airlines, and United Airlines 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 47% 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 May 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.

$348 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.

5:35 am - 8:15 am

SDF

DUB

21h 40m

2 stops

9:20 am - 12:21 pm

DUB

SDF

32h 01m

2 stops

$731Air Canada

Tue, Sep 1 - Fri, Sep 11

5:08 pm - 5:00 pm

SDF

DUB

18h 52m

2 stops

8:35 am - 10:58 pm

DUB

SDF

19h 23m

2 stops

$739British Airways

Tue, Sep 1 - Fri, Sep 11

5:08 pm - 6:50 pm

SDF

DUB

20h 42m

2 stops

8:30 pm - 9:26 pm

DUB

SDF

29h 56m

2 stops

$741British Airways

Tue, Sep 1 - Mon, Sep 7

1:46 pm - 7:30 am

SDF

DUB

12h 44m

1 stop

9:20 am - 6:56 pm

DUB

SDF

14h 36m

2 stops

$746United Airlines

Tue, Sep 1 - Fri, Sep 11

1:46 pm - 7:30 am

SDF

DUB

12h 44m

1 stop

1:35 pm - 10:57 pm

DUB

SDF

14h 22m

1 stop

$750United Airlines

Tue, Sep 1 - Fri, Sep 11

7:15 pm - 11:50 am

SDF

DUB

11h 35m

1 stop

9:40 am - 10:58 pm

DUB

SDF

18h 18m

2 stops

$755Finnair

Sun, Sep 6 - Tue, Sep 15

10:15 am - 5:10 am

SDF

DUB

13h 55m

2 stops

1:20 pm - 9:37 pm

DUB

SDF

13h 17m

2 stops

$760Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

10:15 am - 5:10 am

SDF

DUB

13h 55m

2 stops

1:20 pm - 9:37 pm

DUB

SDF

13h 17m

2 stops

$767Multiple Airlines

Thu, Sep 17 - Sun, Sep 27

12:42 pm - 10:20 am

SDF

ORK

16h 38m

2 stops

6:15 am - 7:08 pm

ORK

SDF

17h 53m

2 stops

$1,166Delta

Fri, May 22 - Wed, Jun 3

7:38 am - 7:50 pm

SDF

ORK

31h 12m

2 stops

7:10 am - 11:08 pm

ORK

SDF

20h 58m

2 stops

$1,230Aer Lingus

Fri, May 22 - Wed, Jun 3

Air Canada flights from Louisville to Ireland

Our best Air Canada deals on Louisville to Ireland flight tickets

Air Canada

Sep 1

SDF5:35 amLouisville Intl

21h 40m

2 stops

DUB8:15 amDublin

Sep 11

DUB9:20 amDublin

32h 01m

2 stops

SDF12:21 pmLouisville Intl

$731

Air Canada

Sep 23

SDF6:00 amLouisville Intl

20h 45m

2 stops

DUB7:45 amDublin

Sep 28

DUB9:20 amDublin

32h 18m

2 stops

SDF12:38 pmLouisville Intl

$829

Air Canada

Aug 2

SDF9:00 amLouisville Intl

17h 45m

2 stops

DUB7:45 amDublin

Aug 19

DUB9:20 amDublin

40h 16m

2 stops

SDF8:36 pmLouisville Intl

$833

United Airlines flights from Louisville to Ireland

Our best United Airlines deals on Louisville to Ireland flight tickets

United Airlines

Sep 1

SDF1:46 pmLouisville Intl

12h 44m

1 stop

DUB7:30 amDublin

Sep 11

DUB9:20 amDublin

14h 36m

2 stops

SDF6:56 pmLouisville Intl

$746

United Airlines

Sep 1

SDF1:46 pmLouisville Intl

12h 44m

1 stop

DUB7:30 amDublin

Sep 11

DUB1:35 pmDublin

14h 22m

1 stop

SDF10:57 pmLouisville Intl

$750

United Airlines

Sep 4

SDF6:00 amLouisville Intl

20h 20m

1 stop

DUB7:20 amDublin

Sep 11

DUB9:20 amDublin

32h 01m

2 stops

SDF12:21 pmLouisville Intl

$773

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 9/1

5:35 am-8:15 am

2 stops21h 40m

Dublin

Fri 9/11

9:20 am-12:21 pm

2 stops32h 01m

$731

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 9/1

5:08 pm-5:00 pm

2 stops18h 52m

Dublin

Fri 9/11

8:35 am-10:58 pm

2 stops19h 23m

$739

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 9/1

5:08 pm-6:50 pm

2 stops20h 42m

Dublin

Mon 9/7

8:30 pm-9:26 pm

2 stops29h 56m

$741

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 9/1

1:46 pm-7:30 am

1 stop12h 44m

Dublin

Fri 9/11

9:20 am-6:56 pm

2 stops14h 36m

$746

Quickest round-trip

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Tue 9/1

1:46 pm-7:30 am

1 stop12h 44m

Dublin

Fri 9/11

1:35 pm-10:57 pm

1 stop14h 22m

$750

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Sun 9/6

7:15 pm-11:50 am

1 stop11h 35m

Dublin

Tue 9/15

9:40 am-10:58 pm

2 stops18h 18m

$755

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Wed 9/23

10:15 am-5:10 am

2 stops13h 55m

Dublin

Mon 9/28

1:20 pm-9:37 pm

2 stops13h 17m

$760

LouisvilleDublin

SDF - DUB

SDFDUB

Louisville Intl

Thu 9/17

10:15 am-5:10 am

2 stops13h 55m

Dublin

Sun 9/27

1:20 pm-9:37 pm

2 stops13h 17m

$767

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Fri 5/22

12:42 pm-10:20 am

2 stops16h 38m

Cork

Wed 6/3

6:15 am-7:08 pm

2 stops17h 53m

$1,166

LouisvilleCork

SDF - ORK

SDFORK

Louisville Intl

Fri 5/22

7:38 am-7:50 pm

2 stops31h 12m

Cork

Wed 6/3

7:10 am-11:08 pm

2 stops20h 58m

$1,230

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 $411. If you aren’t able to travel to Ireland during the month of December, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $452.

How far in advance should I book a flight from Louisville 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 $732 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 37% 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 55m
Direct flights	None

The fastest flight from Louisville to Ireland takes 10h 55m

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 May 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 $484	Free Cancellation	Rating 7.8 1,510 reviews	Search KLM flights
American Airlines	PriceFrom $485	Free Cancellation	Rating 7.1 11,671 reviews	Search American Airlines flights
Delta	PriceFrom $504	Free Cancellation	Rating 7.9 8,457 reviews	Search Delta flights
United Airlines	PriceFrom $532	Free Cancellation	Rating 7.4 9,694 reviews	Search United Airlines flights
Aer Lingus	PriceFrom $963	Free Cancellation	Rating 7.3 1,551 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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Popular cities

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Feeling lucky

Popular cities in Ireland

Flights to Dublinfrom $450

Flights to Shannon, Clarefrom $556

Flights to Corkfrom $613

Flights to Knockfrom $810

Flights to Milltown (Kerry)from $848

Flights to Donegalfrom $861

Cheap flights from Louisville to Ireland from $348

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 9/21. 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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Air Canada flights from Louisville to Ireland

Our best Air Canada deals on Louisville to Ireland flight tickets

United Airlines flights from Louisville to Ireland

Our best United Airlines 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 from Louisville 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