$73 Cheap Flights from Louisville (SDF) to Las Vegas (LAS)

View $73 flight on Sun, Oct 19, 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Louisville to Las Vegas (SDF-LAS)

Prices were available within the past 7 days and start at $73 for one-way flights and $146 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sun, Sep 7 - Mon, Sep 15
SDF
Louisville
LAS
Las Vegas
$146 Roundtrip, just found
$146
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Sep 7 from Louisville to Las Vegas, returning Mon, Sep 15, priced at $146 just found
Spirit Airlines
Tue, Sep 9 - Thu, Sep 11
SDF
Louisville
LAS
Las Vegas
$162 Roundtrip, found 3 hours ago
$162
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Tue, Sep 9 from Louisville to Las Vegas, returning Thu, Sep 11, priced at $162 found 3 hours ago
Spirit Airlines
Sat, Sep 20 - Thu, Sep 25
SDF
Louisville
LAS
Las Vegas
$167 Roundtrip, just found
$167
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Sep 20 from Louisville to Las Vegas, returning Thu, Sep 25, priced at $167 just found
Spirit Airlines
Fri, Sep 19 - Thu, Sep 25
SDF
Louisville
LAS
Las Vegas
$182 Roundtrip, just found
$182
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Sep 19 from Louisville to Las Vegas, returning Thu, Sep 25, priced at $182 just found
Spirit Airlines
Sun, Sep 7 - Mon, Sep 15
SDF
Louisville
LAS
Las Vegas
$184 Roundtrip, just found
$184
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Sep 7 from Louisville to Las Vegas, returning Mon, Sep 15, priced at $184 just found
Spirit Airlines
Sun, Oct 12 - Fri, Oct 17
SDF
Louisville
LAS
Las Vegas
$188 Roundtrip, just found
$188
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Oct 12 from Louisville to Las Vegas, returning Fri, Oct 17, priced at $188 just found
Southwest Airlines
Sun, Oct 26 - Fri, Oct 31
SDF
Louisville
LAS
Las Vegas
$204 Roundtrip, just found
$204
Roundtrip
just found
Select Southwest Airlines flight, departing Sun, Oct 26 from Louisville to Las Vegas, returning Fri, Oct 31, priced at $204 just found
Delta
Tue, Nov 11 - Wed, Nov 12
SDF
Louisville
LAS
Las Vegas
$245 Roundtrip, found 8 hours ago
$245
Roundtrip
found 8 hours ago
Select Delta flight, departing Tue, Nov 11 from Louisville to Las Vegas, returning Wed, Nov 12, priced at $245 found 8 hours ago
American Airlines
Wed, Sep 17 - Sat, Sep 20
SDF
Louisville
LAS
Las Vegas
$251 Roundtrip, just found
$251
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 17 from Louisville to Las Vegas, returning Sat, Sep 20, priced at $251 just found
United
Tue, Nov 11 - Wed, Nov 12
SDF
Louisville
LAS
Las Vegas
$317 Roundtrip, found 8 hours ago
$317
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Louisville to Las Vegas, returning Wed, Nov 12, priced at $317 found 8 hours ago

Find the cheapest month to fly from Louisville (SDF) to Las Vegas (LAS)

July is typically the cheapest month to fly

From $111 - $220 per traveler.

Graph displaying average flight prices per month

Alternative airports near Las Vegas

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

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $306
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $306
0
Flights from Louisville (SDF) to Las Vegas (LAS)
Origin airport
Louisville Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Breeze Airways, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$146
Distance
1619 mi

Louisville to Las Vegas Flights

The cheapest times to fly from Louisville to Las Vegas

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 Louisville to Las Vegas are during the month of September. You can find some of the cheapest flights from Louisville to Las Vegas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Las Vegas

Sunday is one of the best days to book for cheap flights from Louisville to Las Vegas: 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 Louisville to Las Vegas

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 Louisville to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $73 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 Louisville to Las Vegas 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 Louisville to Las Vegas 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 Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS) cost?
Secure a cheap one-way flight from $73 or cheap return flight from $146 from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
September is the least expensive month to fly from SDF to LAS. Avoiding peak travel times is often the key to finding better fares.
Which airlines fly direct from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
Board a direct flight with Southwest Airlines and fly straight from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS).
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
To find the cheapest airline flying from SDF to LAS, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
On average, Louisville Intl. Airport (SDF) only has 1 nonstop flight to Harry Reid Intl. Airport (LAS) each day. For more choices, try our easy-to-use filters. Just enter your preferred travel dates, then select "1 Stop" or "2+ Stops" to discover flights offering layovers.
What are the most popular departure times for flights from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
The 8 AM departures from SDF to LAS are typically the busiest. They can also be more expensive. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from SDF to LAS?
Friday has the most flights from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS). Consider traveling on this day and you'll have a greater chance of finding a departure that works with your plans.
What is the earliest flight from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
The first flight of the day jetting off from Louisville Intl. Airport (SDF) is at around 8:05AM UTC-5. Hop on this flight and you'll reach Harry Reid Intl. Airport (LAS) at approximately 9:35AM UTC-8. The total time in the air is 4h 30m.
How long does it take to fly from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
It takes roughly 4 hours and 26 minutes to fly the 1,600 mi from SDF to LAS.
What is the best time to fly from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
To avoid potential delays on the Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS) route, fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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 Las Vegas from Louisville Intl. Airport (SDF)?
If you're taking a direct flight from Louisville Intl. Airport (SDF) to Las Vegas, Harry Reid Intl. Airport (LAS) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS) last-minute?
Booking your flight from SDF to LAS right before your journey is usually more expensive. However, if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a SDF to LAS flight and hotel package?
Opting for a SDF to LAS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS)?
If you reserved your SDF to LAS flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

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*Available to One Key members.