$44 Cheap Flights from San Antonio (SAT) to Las Vegas (LAS)

View $44 flight on Mon, Sep 22, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Harry Reid Intl. Airport (LAS)

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

Prices were available within the past 7 days and start at $44 for one-way flights and $87 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Sep 22 - Thu, Sep 25
SAT
San Antonio
LAS
Las Vegas
$87 Roundtrip, just found
$87
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Sep 22 from San Antonio to Las Vegas, returning Thu, Sep 25, priced at $87 just found
Spirit Airlines
Mon, Sep 22 - Thu, Sep 25
SAT
San Antonio
LAS
Las Vegas
$93 Roundtrip, just found
$93
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Sep 22 from San Antonio to Las Vegas, returning Thu, Sep 25, priced at $93 just found
Frontier Airlines
Sat, Sep 20 - Sat, Sep 27
SAT
San Antonio
LAS
Las Vegas
$93 Roundtrip, just found
$93
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 20 from San Antonio to Las Vegas, returning Sat, Sep 27, priced at $93 just found
Spirit Airlines
Mon, Sep 22 - Sat, Sep 27
SAT
San Antonio
LAS
Las Vegas
$95 Roundtrip, found 5 hours ago
$95
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Mon, Sep 22 from San Antonio to Las Vegas, returning Sat, Sep 27, priced at $95 found 5 hours ago
Frontier Airlines
Sat, Sep 20 - Thu, Sep 25
SAT
San Antonio
LAS
Las Vegas
$98 Roundtrip, just found
$98
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 20 from San Antonio to Las Vegas, returning Thu, Sep 25, priced at $98 just found
Frontier Airlines
Thu, Sep 25 - Sat, Sep 27
SAT
San Antonio
LAS
Las Vegas
$99 Roundtrip, found 2 hours ago
$99
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Sep 25 from San Antonio to Las Vegas, returning Sat, Sep 27, priced at $99 found 2 hours ago
Spirit Airlines
Mon, Sep 29 - Thu, Oct 2
SAT
San Antonio
LAS
Las Vegas
$101 Roundtrip, just found
$101
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Sep 29 from San Antonio to Las Vegas, returning Thu, Oct 2, priced at $101 just found
Southwest Airlines
Tue, Nov 11 - Wed, Nov 19
SAT
San Antonio
LAS
Las Vegas
$193 Roundtrip, just found
$193
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Nov 11 from San Antonio to Las Vegas, returning Wed, Nov 19, priced at $193 just found
American Airlines
Wed, Jan 14 - Sat, Jan 17
SAT
San Antonio
LAS
Las Vegas
$197 Roundtrip, just found
$197
Roundtrip
just found
Select American Airlines flight, departing Wed, Jan 14 from San Antonio to Las Vegas, returning Sat, Jan 17, priced at $197 just found
Delta
Wed, Jan 14 - Sat, Jan 17
SAT
San Antonio
LAS
Las Vegas
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Delta flight, departing Wed, Jan 14 from San Antonio to Las Vegas, returning Sat, Jan 17, priced at $197 just found

Find the cheapest month to fly from San Antonio (SAT) to Las Vegas (LAS)

January is typically the cheapest month to fly

From $55 - $207 per traveler.

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 $122
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $122
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
$87
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 September. 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 $44 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 much does a flight from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS) cost?
Grab a cheap one-way flight from $44 or cheap return flight from $87 from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
Flying in September can help you save, as it's the cheapest month for flights between SAT and LAS. You'll typically find the lowest fares during off-peak months.
Which airlines fly direct from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
Pick from 3 carriers that operate direct flights from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS). Including:

  • Southwest Airlines
  • Spirit Airlines
  • Frontier Airlines

What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
While prices can change depending on your travel dates, Frontier Airlines and Spirit Airlines are often frequently picked for flights between San Antonio Intl. Airport (SAT) and Harry Reid Intl. Airport (LAS). You can also compare carriers on Expedia and use the "Sort by" filter to find the cheapest fare for your SAT to LAS flight.
How many flights per day from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
Each day, an average of 5 nonstop flights take off from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS). Select the departure time that best fits your schedule.
What are the most popular departure times for flights from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
The 5 AM departures from SAT to LAS are the busiest. These flights can come with a higher price due to their popularity. If you want to save on your trip, book during off-peak hours.
What day of the week has the most flights from SAT to LAS?
If you depart on a Friday, you'll get the greatest range of options for flights from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
Take the earliest flight at around 5:45AM UTC-6, heading out of San Antonio Intl. Airport (SAT). You'll be in the air for about 3h 5m, reaching Harry Reid Intl. Airport (LAS) at approximately 6:50AM UTC-8.
How long does it take to fly from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
The average flight time from SAT to LAS is 3 hours and 2 minutes, covering a distance of 1,050 mi.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
To arrive at Harry Reid Intl. Airport (LAS) on time, opt for a flight that leaves from San Antonio Intl. Airport (SAT) before 3 PM. The likelihood 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 Las Vegas from San Antonio Intl. Airport (SAT)?
Browse your flight options from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS). This is the only Las Vegas airport you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS) last-minute?
Waiting until just before your trip to book a ticket from SAT to LAS generally means paying more. While you may come across some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book a SAT to LAS flight and hotel package?
Compared with arranging hotels and flights separately, booking a SAT to LAS flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the stress out of planning your trip. Just secure your flights and choose from our wide range of hotels, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Harry Reid Intl. Airport (LAS)?
If you reserved your SAT to LAS flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.