$70 Cheap Flights from Houston (HOU) to Louisville (SDF)

View $70 flight on Sat, Sep 6, 2025Opens in a new window

Popular airlines from Houston William Hobby Airport (HOU) to Louisville Intl. Airport (SDF)

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Cheap Flights from Houston to Louisville (HOU-SDF)

Prices were available within the past 7 days and start at $70 for one-way flights and $149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Wed, Sep 24 - Sat, Sep 27
HOU
Houston
SDF
Louisville
$149 Roundtrip, found 18 hours ago
$149
Roundtrip
found 18 hours ago
Select Southwest Airlines flight, departing Wed, Sep 24 from Houston to Louisville, returning Sat, Sep 27, priced at $149 found 18 hours ago
Southwest Airlines
Wed, Sep 24 - Sat, Sep 27
HOU
Houston
SDF
Louisville
$154 Roundtrip, found 18 hours ago
$154
Roundtrip
found 18 hours ago
Select Southwest Airlines flight, departing Wed, Sep 24 from Houston to Louisville, returning Sat, Sep 27, priced at $154 found 18 hours ago
Southwest Airlines
Wed, Nov 5 - Sat, Nov 8
HOU
Houston
SDF
Louisville
$164 Roundtrip, found 20 hours ago
$164
Roundtrip
found 20 hours ago
Select Southwest Airlines flight, departing Wed, Nov 5 from Houston to Louisville, returning Sat, Nov 8, priced at $164 found 20 hours ago
Southwest Airlines
Thu, Dec 11 - Sat, Dec 13
HOU
Houston
SDF
Louisville
$171 Roundtrip, found 2 hours ago
$171
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Thu, Dec 11 from Houston to Louisville, returning Sat, Dec 13, priced at $171 found 2 hours ago
Southwest Airlines
Mon, Sep 8 - Thu, Sep 11
HOU
Houston
SDF
Louisville
$173 Roundtrip, found 3 days ago
$173
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Mon, Sep 8 from Houston to Louisville, returning Thu, Sep 11, priced at $173 found 3 days ago
Southwest Airlines
Wed, Nov 5 - Sat, Nov 8
HOU
Houston
SDF
Louisville
$177 Roundtrip, found 20 hours ago
$177
Roundtrip
found 20 hours ago
Select Southwest Airlines flight, departing Wed, Nov 5 from Houston to Louisville, returning Sat, Nov 8, priced at $177 found 20 hours ago
Delta
Wed, Sep 24 - Sat, Sep 27
HOU
Houston
SDF
Louisville
$178 Roundtrip, found 18 hours ago
$178
Roundtrip
found 18 hours ago
Select Delta flight, departing Wed, Sep 24 from Houston to Louisville, returning Sat, Sep 27, priced at $178 found 18 hours ago
Southwest Airlines
Fri, Oct 24 - Sat, Nov 1
HOU
Houston
SDF
Louisville
$181 Roundtrip, found 2 days ago
$181
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Fri, Oct 24 from Houston to Louisville, returning Sat, Nov 1, priced at $181 found 2 days ago
Southwest Airlines
Thu, Dec 4 - Sun, Dec 7
HOU
Houston
SDF
Louisville
$183 Roundtrip, found 4 hours ago
$183
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Thu, Dec 4 from Houston to Louisville, returning Sun, Dec 7, priced at $183 found 4 hours ago
American Airlines
Wed, Sep 24 - Sat, Sep 27
HOU
Houston
SDF
Louisville
$184 Roundtrip, found 18 hours ago
$184
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Wed, Sep 24 from Houston to Louisville, returning Sat, Sep 27, priced at $184 found 18 hours ago

Find the cheapest month to fly from Houston (HOU) to Louisville (SDF)

November is typically the cheapest month to fly

From $143 - $498 per traveler.

Graph displaying average flight prices per month

Alternative airports near Louisville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Louisville Intl. SDF. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $254
SDF
Louisville Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $254
Flights from Houston (HOU) to Louisville (SDF)
Origin airport
William P. Hobby
Destination airport
Louisville Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines
Roundtrip price
$149
Distance
802 mi
Average flight time
2 hours 10 mins

Houston to Louisville Flights

The cheapest times to fly from Houston to Louisville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Louisville are during the month of September. You can find some of the cheapest flights from Houston to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Louisville

Sunday is one of the best days to book for cheap flights from Houston to Louisville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Louisville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $70 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Louisville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Louisville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF) cost?
Get a cheap one-way flight from $70 or cheap return flight from $149 from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
September is the least expensive month to fly from HOU to SDF. Planning your trip for the off-season is often the key to scoring lower fares.
Which airlines fly direct from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
When heading out of William P. Hobby Airport (HOU), you can hop on a nonstop flight to Louisville Intl. Airport (SDF) with Southwest Airlines.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
To find the cheapest airline flying from HOU to SDF, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
On average, William P. Hobby Airport (HOU) has 3 nonstop flights to Louisville Intl. Airport (SDF) weekly. If you're looking for more choice, use Expedia's filters to search for flights with one or more stops. Squeeze in a visit to another destination or simply break up your travels.
What are the most popular departure times for flights from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
More passengers fly between HOU and SDF at 12 PM than at any other time of day. Prefer a quieter experience? Travel outside of rush hours and you could save on your fare as well.
What day of the week has the most flights from HOU to SDF?
Friday has the most flights from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF). Consider taking off on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
Take the earliest flight at around 12:55PM UTC-6, departing from William P. Hobby Airport (HOU). You'll be traveling for approximately 2h 5m, touching down at Louisville Intl. Airport (SDF) at approximately 4:00PM UTC-5.
How long does it take to fly from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
The average flight time from HOU to SDF is 2 hours and 5 minutes, covering a total distance of 800 mi.
What is the best time to fly from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
To touch down at Louisville Intl. Airport (SDF) on schedule, pick a flight that leaves from William P. Hobby Airport (HOU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Louisville from William P. Hobby Airport (HOU)?
Compare your flight options from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF). This is the only airport in Louisville you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF) last-minute?
Last-minute bookings from HOU to SDF are usually more expensive. To lock in the lowest rates, start looking for flights well in advance. That being said, if you're flexible with your travel plans, you may find a cheap fare right before your journey.
Is it cheaper to book a HOU to SDF flight and hotel package?
You can save money by securing a HOU to SDF flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to Louisville Intl. Airport (SDF)?
Typically, you can cancel or modify your HOU to SDF flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need more information, head to our Customer Service portal.

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