$46 Cheap Flights from San Antonio (SAT) to Las Vegas (LAS)

View $46 flight on Tue, May 27, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from San Antonio to Las Vegas (SAT-LAS)

Prices were available within the past 7 days and start at $46 for one-way flights and $92 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 27 - Sat, May 31
SAT
San Antonio
LAS
Las Vegas
$92 Roundtrip, found 2 hours ago
$92
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 27 from San Antonio to Las Vegas, returning Sat, May 31, priced at $92 found 2 hours ago
Frontier Airlines
Tue, May 27 - Thu, May 29
SAT
San Antonio
LAS
Las Vegas
$100 Roundtrip, found 2 hours ago
$100
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 27 from San Antonio to Las Vegas, returning Thu, May 29, priced at $100 found 2 hours ago
Spirit Airlines
Wed, May 28 - Sat, May 31
SAT
San Antonio
LAS
Las Vegas
$101 Roundtrip, just found
$101
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, May 28 from San Antonio to Las Vegas, returning Sat, May 31, priced at $101 just found
Frontier Airlines
Tue, May 27 - Thu, May 29
SAT
San Antonio
LAS
Las Vegas
$104 Roundtrip, found 2 hours ago
$104
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 27 from San Antonio to Las Vegas, returning Thu, May 29, priced at $104 found 2 hours ago
Spirit Airlines
Sun, May 11 - Tue, May 13
SAT
San Antonio
LAS
Las Vegas
$106 Roundtrip, just found
$106
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, May 11 from San Antonio to Las Vegas, returning Tue, May 13, priced at $106 just found
Spirit Airlines
Thu, May 15 - Sun, May 18
SAT
San Antonio
LAS
Las Vegas
$107 Roundtrip, just found
$107
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, May 15 from San Antonio to Las Vegas, returning Sun, May 18, priced at $107 just found
Spirit Airlines
Sun, Jun 1 - Mon, Jun 2
SAT
San Antonio
LAS
Las Vegas
$108 Roundtrip, just found
$108
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Jun 1 from San Antonio to Las Vegas, returning Mon, Jun 2, priced at $108 just found
Southwest Airlines
Tue, Jun 10 - Wed, Jun 11
SAT
San Antonio
LAS
Las Vegas
$225 Roundtrip, just found
$225
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Jun 10 from San Antonio to Las Vegas, returning Wed, Jun 11, priced at $225 just found
American Airlines
Wed, May 21 - Thu, May 22
SAT
San Antonio
LAS
Las Vegas
$269 Roundtrip, just found
$269
Roundtrip
just found
Select American Airlines flight, departing Wed, May 21 from San Antonio to Las Vegas, returning Thu, May 22, priced at $269 just found
Delta
Fri, May 16 - Mon, May 19
SAT
San Antonio
LAS
Las Vegas
$275 Roundtrip, just found
$275
Roundtrip
just found
Select Delta flight, departing Fri, May 16 from San Antonio to Las Vegas, returning Mon, May 19, priced at $275 just found
Flights from San Antonio (SAT) to Las Vegas (LAS)
Origin airport
San Antonio Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$92
Distance
1067 mi

San Antonio to Las Vegas Flights

The cheapest times to fly from San Antonio 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 San Antonio to Las Vegas are during the month of May. You can find some of the cheapest flights from San Antonio to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Antonio to Las Vegas

Sunday is one of the best days to book for cheap flights from San Antonio 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 San Antonio 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 San Antonio to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $46 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 San Antonio 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 San Antonio 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 long does it take to fly from SAT to McCarran Airport?
A direct flight with Spirit Airlines takes around 2 hours and 56 minutes. Lock in a seat on the 8:41PM flight from San Antonio Airport and arrive at McCarran Intl. Airport (LAS) at 9:37PM. Clinch an amazing deal on this and other routes when you use Expedia to book your journey.
Is it cheaper to buy a plane ticket from San Antonio Airport to McCarran Airport last minute?
Being the spontaneous type is a great way to see the world, but it’s not always the best method to nab a cheap flight. Think about booking your San Antonio Intl. Airport (SAT) to Harry Reid Airport (formerly McCarran Airport) trip in advance instead of leaving it till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Leave your spontaneous side for when you arrive in Harry Reid Airport (formerly McCarran Airport)!
What airports do you fly into for Las Vegas from San Antonio?
With McCarran Intl. Airport (LAS), Henderson Executive Airport (HSH) and North Las Vegas Airport (VGT) to select from, journeying from San Antonio to Las Vegas is no sweat. The city’s main terminal, McCarran Intl. Airport (LAS), is about 2 mi southeast of the downtown area. As well as ticket prices, consider things like public transportation options from the airport and the distance to your hotel before deciding where you’ll get off the plane. Get your Las Vegas vacation off to an awesome start by checking out Thomas and Mack Center and Fashion Show Mall.
What are the most popular departure times for flights from San Antonio Airport to McCarran Airport?
Between 3:00 PM - 4:00 PM is when you’ll find the most Spirit Airlines flights jetting off from San Antonio Intl. Airport (SAT) to Harry Reid Airport (formerly McCarran Airport). Our handy tip? Fly out in the morning. With air traffic yet to build up, your chances of catching a delay-free flight are higher.
Can I change the date of my flight from San Antonio Intl. Airport (SAT) to LAS?
It’s a breeze to make changes to your San Antonio Airport to McCarran Airport journey yourself. Access your details via the Expedia Trips portal and tap “change flight.” Browse around for new flights and book the one that works with your new plans. You’ll see an estimate of your flight change fee, if applicable. You can also use our Customer Service portal to chat to our Virtual Agent and get answers to your questions.

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*Available to One Key members.