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Cheap flights from Harlingen to Louisville from $394

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen to Louisville departing on 8/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Harlingen to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
5:30 am - 1:05 pm
HRL
-
SDF
6h 35m
2 stops
Southwest Logo
10:50 am - 2:50 pm
SDF
-
HRL
5h 00m
1 stop
$394Southwest
Fri, Aug 14 - Tue, Aug 18
Southwest Logo
11:55 am - 6:30 pm
HRL
-
SDF
5h 35m
2 stops
Southwest Logo
10:50 am - 4:45 pm
SDF
-
HRL
6h 55m
2 stops
$399Southwest
Fri, Aug 14 - Tue, Aug 18
Southwest Logo
11:55 am - 6:30 pm
HRL
-
SDF
5h 35m
2 stops
Southwest Logo
6:45 am - 11:20 am
SDF
-
HRL
5h 35m
2 stops
$419Southwest
Thu, Sep 17 - Fri, Sep 18
Southwest Logo
5:50 am - 4:05 pm
HRL
-
SDF
9h 15m
1 stop
Southwest Logo
7:40 pm - 12:05 am
SDF
-
HRL
5h 25m
1 stop
$423Southwest
Fri, Nov 20 - Wed, Nov 25
Southwest Logo
5:50 am - 4:05 pm
HRL
-
SDF
9h 15m
1 stop
Southwest Logo
2:15 pm - 11:00 pm
SDF
-
HRL
9h 45m
2 stops
$429Southwest
Fri, Nov 20 - Wed, Nov 25
Southwest Logo
5:30 am - 3:40 pm
HRL
-
SDF
9h 10m
1 stop
Southwest Logo
6:45 am - 11:20 am
SDF
-
HRL
5h 35m
2 stops
$444Southwest
Thu, Sep 17 - Fri, Sep 18
Southwest Logo
6:40 am - 3:25 pm
HRL
-
SDF
7h 45m
2 stops
Southwest Logo
7:10 pm - 12:05 am
SDF
-
HRL
5h 55m
2 stops
$447Southwest
Fri, Nov 20 - Wed, Nov 25
United Airlines Logo
7:18 am - 1:33 pm
HRL
-
SDF
5h 15m
1 stop
United Airlines Logo
3:50 pm - 9:44 pm
SDF
-
HRL
6h 54m
1 stop
$450United Airlines
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
12:10 pm - 7:35 pm
HRL
-
SDF
6h 25m
1 stop
United Airlines Logo
7:30 am - 3:34 pm
SDF
-
HRL
9h 04m
2 stops
$455United Airlines
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
12:10 pm - 11:55 pm
HRL
-
SDF
10h 45m
2 stops
United Airlines Logo
7:30 am - 3:34 pm
SDF
-
HRL
9h 04m
2 stops
$460United Airlines
Sat, Dec 5 - Wed, Dec 9

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United Airlines flights from Harlingen to Louisville

Our best United Airlines deals on Harlingen to Louisville flight tickets
United Airlines
Dec 5
HRL7:18 amHarlingen Valley Intl
5h 15m
1 stop
SDF1:33 pmLouisville Intl
Dec 9
SDF3:50 pmLouisville Intl
6h 54m
1 stop
HRL9:44 pmHarlingen Valley Intl
$450
United Airlines
Dec 5
HRL12:10 pmHarlingen Valley Intl
6h 25m
1 stop
SDF7:35 pmLouisville Intl
Dec 9
SDF7:30 amLouisville Intl
9h 04m
2 stops
HRL3:34 pmHarlingen Valley Intl
$455
United Airlines
Dec 5
HRL12:10 pmHarlingen Valley Intl
10h 45m
2 stops
SDF11:55 pmLouisville Intl
Dec 9
SDF7:30 amLouisville Intl
9h 04m
2 stops
HRL3:34 pmHarlingen Valley Intl
$460

Southwest flights from Harlingen to Louisville

Our best Southwest deals on Harlingen to Louisville flight tickets
Southwest
Aug 14
HRL5:30 amHarlingen Valley Intl
6h 35m
2 stops
SDF1:05 pmLouisville Intl
Aug 18
SDF10:50 amLouisville Intl
5h 00m
1 stop
HRL2:50 pmHarlingen Valley Intl
$394
Southwest
Aug 14
HRL11:55 amHarlingen Valley Intl
5h 35m
2 stops
SDF6:30 pmLouisville Intl
Aug 18
SDF10:50 amLouisville Intl
6h 55m
2 stops
HRL4:45 pmHarlingen Valley Intl
$399
Southwest
Sep 17
HRL11:55 amHarlingen Valley Intl
5h 35m
2 stops
SDF6:30 pmLouisville Intl
Sep 18
SDF6:45 amLouisville Intl
5h 35m
2 stops
HRL11:20 amHarlingen Valley Intl
$419

momondo 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, momondo users made 832,500 searches. Data last updated August 3, 2026.
Use the filters below to find and compare flights from Harlingen to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Fri 8/14

5:30 am-1:05 pm

2 stops6h 35m

Louisville Intl

Tue 8/18

10:50 am-2:50 pm

1 stop5h 00m

$394

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Fri 8/14

11:55 am-6:30 pm

2 stops5h 35m

Louisville Intl

Tue 8/18

10:50 am-4:45 pm

2 stops6h 55m

$399
Quickest round-trip

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Thu 9/17

11:55 am-6:30 pm

2 stops5h 35m

Louisville Intl

Fri 9/18

6:45 am-11:20 am

2 stops5h 35m

$419

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Fri 11/20

5:50 am-4:05 pm

1 stop9h 15m

Louisville Intl

Wed 11/25

7:40 pm-12:05 am

1 stop5h 25m

$423

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Fri 11/20

5:50 am-4:05 pm

1 stop9h 15m

Louisville Intl

Wed 11/25

2:15 pm-11:00 pm

2 stops9h 45m

$429

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Thu 9/17

5:30 am-3:40 pm

1 stop9h 10m

Louisville Intl

Fri 9/18

6:45 am-11:20 am

2 stops5h 35m

$444

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Fri 11/20

6:40 am-3:25 pm

2 stops7h 45m

Louisville Intl

Wed 11/25

7:10 pm-12:05 am

2 stops5h 55m

$447

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Sat 12/5

7:18 am-1:33 pm

1 stop5h 15m

Louisville Intl

Wed 12/9

3:50 pm-9:44 pm

1 stop6h 54m

$450

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Sat 12/5

12:10 pm-7:35 pm

1 stop6h 25m

Louisville Intl

Wed 12/9

7:30 am-3:34 pm

2 stops9h 04m

$455

HarlingenLouisville

HRL - SDF

HRLSDF

Harlingen Valley Intl

Sat 12/5

12:10 pm-11:55 pm

2 stops10h 45m

Louisville Intl

Wed 12/9

7:30 am-3:34 pm

2 stops9h 04m

$460

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Louisville from

How to get the cheapest flight ticket from Harlingen to Louisville

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

Can stopping save me money on Harlingen to Louisville flights?

You could potentially save up to 2% on your flight if you consider stops on a Harlingen to Louisville flight.

When to book flights from Harlingen to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Harlingen to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harlingen to Louisville (HRL to SDF) flight deals and tips

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

Fastest flight time

5h 35m

Direct flights

None
The fastest flight from Harlingen to Louisville takes 5h 35m
There are no direct flights from Harlingen to Louisville. There are no popular flight routes from Harlingen to Louisville.
Search flight deals

Frequently asked questions about flying from Harlingen to Louisville

  • How far is Harlingen Valley Intl to Louisville Intl by plane?

    There are 1084.1 mi between Harlingen Valley Intl and Louisville Intl. A reasonable flight in good conditions will take 5h 35m.

  • When did momondo last update prices for flights from Harlingen Valley Intl Airport to Louisville Intl Airport?

    Prices for flights from Harlingen Valley Intl Airport to Louisville Intl Airport were last updated today.

  • How old do you have to be to fly from Harlingen Valley Intl Airport to Louisville Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Harlingen Valley Intl Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Jeffersonville
West Baden Springs
Bardstown
New Albany
Shepherdsville
Elizabeth
Corydon
Charlestown
Brandenburg
Georgetown
Springfield

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Harlingen to Louisville. momondo saves you time and could save you money on your trip.

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

Flights from Harlingen to Louisville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Louisville from Harlingen.

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

Of course. momondo tracks the price of Harlingen to Louisville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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