HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$389+ Cheap flights from Harlingen, TX to Louisville (HRL - SDF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SDF
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harlingen to Louisville 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.

Cheap flight deals from Harlingen to Louisville

Cheapest flights from Harlingen to Louisville
Explore the most affordable flight options available from Harlingen to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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.
sáb. 2/147:00 am
HRL
-
SDF
1 stop7h 11m
United Airlines
mié. 2/183:30 pm
SDF
-
HRL
1 stop7h 29m
United Airlines
Deal found 1/27$389

Find flight deals from Harlingen to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Louisville (SDF). 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 enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$389
(United Airlines)
Provider with most accurate pricing for Harlingen Valley Intl-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harlingen Valley Intl-Louisville Intl flights.
Search Deals
From Harlingen Valley Intl to Louisville Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Louisville 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 enero 29, 2026.
Use the filters below to find and compare flights from Harlingen to Louisville that are best for you.

Fly from

Harlingen

Fly to

Louisville

Route

Depart

Return

Price

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

sáb. 2/14

9:20 am-3:11 pm

1 stop4h 51m

Louisville Intl

mié. 2/18

3:30 pm-9:59 pm

1 stop7h 29m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

  • Most accurate provider: When it comes to deals on Harlingen, Texas-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen, Texas-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harlingen, Texas-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen, Texas-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harlingen to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Harlingen 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 Harlingen to Louisville

What is the cheapest month to book a flight from Harlingen, Texas to Louisville?

Currently, May is the cheapest month in which you can book a flight from Harlingen, Texas to Louisville (average of $228). Flying from Harlingen, Texas to Louisville in August is currently the most expensive (average of $409). 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.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Harlingen, Texas to Louisville?

    Departing from Harlingen, Texas to Louisville will take you 4h 51m. The distance between Harlingen, Texas and Louisville is about 1077 mi.

  • Can I find deals for flights from Harlingen to Louisville that include hotel bookings?

    Yes. In addition to deals on Harlingen to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Louisville.

  • Can I find deals for business class flights from Harlingen to Louisville?

    Yes. Cheapflights offers flight deals from Harlingen to Louisville 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 Harlingen, Texas to Louisville?

    Currently, May is the cheapest month in which you can book a flight from Harlingen, Texas to Louisville (average of $228). Flying from Harlingen, Texas to Louisville in August is currently the most expensive (average of $409). 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
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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.

Alternative routes for Harlingen to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Nashville flights
Hobby to Nashville flights
Austin to Nashville flights
George Bush Intcntl to Nashville flights
Hobby to Cincinnati flights
Dallas/Fort Worth to Cincinnati flights
Dallas/Fort Worth to Knoxville flights
George Bush Intcntl to Cincinnati flights
Hobby to Knoxville flights
Love Field to Nashville flights
Dallas/Fort Worth to Louisville flights
George Bush Intcntl to Knoxville flights
San Antonio to Nashville flights
Austin to Cincinnati flights
Hobby to Louisville flights
Dallas/Fort Worth to Lexington flights
Love Field to Knoxville flights
George Bush Intcntl to Louisville flights
Love Field to Cincinnati flights
Love Field to Louisville flights
Austin to Knoxville flights
San Antonio to Cincinnati flights
Hobby to Lexington flights
Austin to Louisville flights
San Antonio to Lexington flights
San Antonio to Louisville flights
George Bush Intcntl to Lexington flights
El Paso to Nashville flights
Austin to Lexington flights
Corpus Christi to Nashville flights
San Antonio to Knoxville flights
Hobby to Evansville flights
Midland to Nashville flights
Austin to Blountville flights
George Bush Intcntl to Evansville flights
McAllen to Nashville flights
El Paso to Knoxville flights
Corpus Christi to Knoxville flights
El Paso to Cincinnati flights
McAllen to Cincinnati flights
Lubbock to Nashville flights
Love Field to Lexington flights
Brownsville to Nashville flights
Corpus Christi to Cincinnati flights
McAllen to Knoxville flights
George Bush Intcntl to Blountville flights
Austin to Evansville flights
Hobby to Blountville flights
Harlingen to Nashville flights
Amarillo to Knoxville flights

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.