$71 Cheap Flights from Louisville (SDF) to Las Vegas (LAS)

View $71 flight on Sat, May 10, 2025Opens in a new window

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

Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $71 for one-way flights and $150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, May 10 - Fri, May 16
SDF
Louisville
LAS
Las Vegas
$150 Roundtrip, found 12 hours ago
$150
Roundtrip
found 12 hours ago
Select Spirit Airlines flight, departing Sat, May 10 from Louisville to Las Vegas, returning Fri, May 16, priced at $150 found 12 hours ago
Spirit Airlines
Fri, May 16 - Fri, May 23
SDF
Louisville
LAS
Las Vegas
$158 Roundtrip, found 2 hours ago
$158
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Fri, May 16 from Louisville to Las Vegas, returning Fri, May 23, priced at $158 found 2 hours ago
Spirit Airlines
Mon, Sep 8 - Tue, Sep 16
SDF
Louisville
LAS
Las Vegas
$178 Roundtrip, found 2 hours ago
$178
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Mon, Sep 8 from Louisville to Las Vegas, returning Tue, Sep 16, priced at $178 found 2 hours ago
Spirit Airlines
Thu, May 1 - Thu, May 15
SDF
Louisville
LAS
Las Vegas
$182 Roundtrip, found 3 days ago
$182
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Thu, May 1 from Louisville to Las Vegas, returning Thu, May 15, priced at $182 found 3 days ago
Spirit Airlines
Thu, May 1 - Sat, May 10
SDF
Louisville
LAS
Las Vegas
$184 Roundtrip, found 6 hours ago
$184
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Thu, May 1 from Louisville to Las Vegas, returning Sat, May 10, priced at $184 found 6 hours ago
Spirit Airlines
Mon, May 26 - Thu, May 29
SDF
Louisville
LAS
Las Vegas
$190 Roundtrip, just found
$190
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, May 26 from Louisville to Las Vegas, returning Thu, May 29, priced at $190 just found
American Airlines
Wed, May 21 - Sat, May 24
SDF
Louisville
LAS
Las Vegas
$227 Roundtrip, found 3 hours ago
$227
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, May 21 from Louisville to Las Vegas, returning Sat, May 24, priced at $227 found 3 hours ago
Southwest Airlines
Wed, May 21 - Sat, May 24
SDF
Louisville
LAS
Las Vegas
$237 Roundtrip, found 3 hours ago
$237
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Wed, May 21 from Louisville to Las Vegas, returning Sat, May 24, priced at $237 found 3 hours ago
Delta
Tue, Jun 3 - Wed, Jun 11
SDF
Louisville
LAS
Las Vegas
$295 Roundtrip, found 8 hours ago
$295
Roundtrip
found 8 hours ago
Select Delta flight, departing Tue, Jun 3 from Louisville to Las Vegas, returning Wed, Jun 11, priced at $295 found 8 hours ago
United
Tue, Jun 3 - Wed, Jun 11
SDF
Louisville
LAS
Las Vegas
$305 Roundtrip, found 8 hours ago
$305
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 3 from Louisville to Las Vegas, returning Wed, Jun 11, priced at $305 found 8 hours ago
Flights from Louisville (SDF) to Las Vegas (LAS)
Origin airport
Louisville Intl.
Destination airport
Harry Reid Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$150
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 May. 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 $71 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?
Pick up cheap return flights starting from $295 from Louisville Intl. Airport (SDF) to Harry Reid Intl. Airport (LAS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving SDF on May 13 2025 and touching down at LAS. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from SDF to LAS?
The cheapest flights from SDF to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 SDF to LAS?
At the moment, the cheapest airline offering one-way flights from SDF to LAS is Southwest Airlines. You can book a seat on this route from $148. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SDF on July 5 2025. Prices were last updated on April 24 2025 and have not changed since.
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.