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$100+ Cheap flights from San Antonio to Las Vegas (SAT - LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LAS
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
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Find cheap flights from San Antonio to Las Vegas with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from San Antonio to Las Vegas Harry Reid Intl are usually found in September or November, booked 33 days in advance, depart on a Sunday or Monday and return on a Friday

Cheap flight deals from San Antonio to Las Vegas

Cheapest flights from San Antonio to Las Vegas
Explore the most affordable flight options available from San Antonio to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:39 pm
SAT
-
LAS
Nonstop3h 02m
Frontier
Thu 4/307:00 am
LAS
-
SAT
Nonstop2h 40m
Frontier
Deal found 3/10$159
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:04 pm
SAT
-
LAS
1 stop6h 07m
Frontier
Fri 4/2412:59 am
LAS
-
SAT
1 stop12h 10m
Frontier
Deal found 3/12$160
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:45 am
SAT
-
LAS
1 stop17h 52m
Frontier
Tue 4/79:21 pm
LAS
-
SAT
1 stop24h 58m
Frontier
Deal found 3/12$164
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:14 pm
SAT
-
LAS
1 stop10h 22m
Frontier
Fri 5/86:00 am
LAS
-
SAT
1 stop6h 19m
Frontier
Deal found 3/10$166
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:45 am
SAT
-
LAS
1 stop15h 26m
Frontier
Sat 4/187:00 am
LAS
-
SAT
1 stop6h 09m
Frontier
Deal found 3/12$174
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:45 am
SAT
-
LAS
1 stop17h 52m
Frontier
Fri 4/312:59 am
LAS
-
SAT
1 stop21h 20m
Frontier
Deal found 3/12$175
This Cheapflightsfares deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/294:49 pm
SAT
-
LAS
1 stop8h 47m
Frontier
Wed 5/64:52 pm
LAS
-
SAT
1 stop19h 27m
Frontier
Deal found 3/10$179
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:45 am
SAT
-
LAS
1 stop18h 52m
Frontier
Tue 4/2112:59 am
LAS
-
SAT
1 stop12h 54m
Frontier
Deal found 3/12$180
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:45 am
SAT
-
LAS
1 stop10h 28m
Frontier
Fri 4/1712:59 am
LAS
-
SAT
1 stop12h 10m
Frontier
Deal found 3/12$182
This Cheapflightsfares deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:14 pm
SAT
-
LAS
1 stop6h 57m
Frontier
Thu 5/77:00 am
LAS
-
SAT
Nonstop2h 40m
Frontier
Deal found 3/10$183

Find flight deals from San Antonio to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$159
(Cheapflightsfares)

One-way from

$100
(Frontier)

Popular in

March

Cheapest in

September

Average price

$310

Good round-trip deal

$291 or less

Good one-way deal

$155 or less
Provider with most accurate pricing for San Antonio-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Las Vegas Harry Reid Intl flights.
Search Deals
From San Antonio to Las Vegas Harry Reid Intl
Search Deals
One-way flight from San Antonio to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from San Antonio to Las Vegas Harry Reid Intl.
Search Deals
Price to beat on a one-way flight from San Antonio to Las Vegas Harry Reid Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
Use the filters below to find and compare flights from San Antonio to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Mon 4/13

8:20 pm-9:10 pm

Nonstop2h 50m

Las Vegas Harry Reid Intl

Wed 4/15

7:15 am-11:50 am

Nonstop2h 35m

$359

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Wed 5/27

5:55 pm-9:40 pm

2 stops5h 45m

Las Vegas Harry Reid Intl

Fri 5/29

4:05 pm-10:55 pm

1 stop4h 50m

$426

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Mon 5/25

8:20 pm-9:10 pm

Nonstop2h 50m

Las Vegas Harry Reid Intl

Thu 5/28

7:30 pm-12:05 am

Nonstop2h 35m

$431

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Tue 5/5

6:02 pm-9:57 pm

1 stop5h 55m

Las Vegas Harry Reid Intl

Sat 5/9

10:46 am-8:49 pm

2 stops8h 03m

$436

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Fri 5/29

9:55 am-2:00 pm

2 stops6h 05m

Las Vegas Harry Reid Intl

Tue 6/2

10:00 am-6:15 pm

2 stops6h 15m

$450

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Wed 5/27

5:57 pm-12:21 am

2 stops8h 24m

Las Vegas Harry Reid Intl

Mon 6/1

3:33 pm-10:42 pm

1 stop5h 09m

$459

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Tue 4/21

8:45 am-5:52 pm

2 stops11h 07m

Las Vegas Harry Reid Intl

Fri 4/24

8:05 am-5:43 pm

1 stop7h 38m

$478

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Wed 4/1

11:40 am-12:40 pm

Nonstop3h 00m

Las Vegas Harry Reid Intl

Sat 4/4

9:10 pm-1:40 am

Nonstop2h 30m

$481

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Fri 5/1

6:02 pm-12:19 am

2 stops8h 17m

Las Vegas Harry Reid Intl

Mon 5/4

7:07 pm-8:42 am

2 stops11h 35m

$504
Cheapest one-way
Quickest one-way

San AntonioLas Vegas

SAT - LAS

SATLAS

San Antonio

Sat 5/16

8:59 pm-9:57 pm

Nonstop2h 58m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from San Antonio to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Las Vegas in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Super.comPrice Accuracy-Trust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Antonio to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Las Vegas

How far ahead should I book a flight from San Antonio to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Las Vegas. Price data was last updated on March 13, 2026.

The price you pay for your flight from San Antonio to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 33 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Antonio to Las Vegas?

Currently, January is the cheapest month in which you can book a flight from San Antonio to Las Vegas (average of $58). Flying from San Antonio to Las Vegas in March is currently the most expensive (average of $91). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to LAS?

Find hourly flight availability from San Antonio to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 15, 2026.

One of the essential ways to save on airfare from San Antonio to Las Vegas is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 31% on airfare.

What is the cheapest day to fly from San Antonio to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Las Vegas. Price data was last updated on March 14, 2026.

Travelers seeking maximum savings on their San Antonio to Las Vegas flight should consider departing on Monday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for San Antonio to Las Vegas flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to Las Vegas trip
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on SAT and LAS

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated March 15, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines from San Antonio to Las Vegas by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
8.0
Very good
4,318 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
United Airlines
7.4
Good
9,427 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
American Airlines
7.1
Good
11,472 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Spirit Airlines
6.3
Okay
8,516 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Frontier
5.7
Fair
3,032 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Antonio to Las Vegas?

    You will need to book a flight from San Antonio to Las Vegas Harry Reid Intl if you want to fly from San Antonio to Las Vegas. At least 6 different airlines have flights from San Antonio (SAT) to Harry Reid Intl (LAS) on a regular basis. There are 3 flights to Las Vegas from the San Antonio airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SAT to LAS to be around 2h 40m.

  • How popular is this San Antonio to Las Vegas flight route?

    The San Antonio to Las Vegas Harry Reid Intl flight path was viewed by 247 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Antonio to Las Vegas?

    For as low as $359, Southwest can have you in Las Vegas from San Antonio in 2h 50m. Airlines will cover a distance of 1067 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Antonio to Las Vegas round-trip?

    According to our current data, Frontier ($72), Spirit Airlines ($87), and Delta ($117) offers the cheapest pricing from San Antonio to Las Vegas. Frontier is priced at 70% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Antonio to Las Vegas one-way?

    $39 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and United Airlines, with prices starting from $47 and $75, respectively.

  • What are the most reliable airlines from San Antonio to Las Vegas?

    Consider Spirit Airlines (86%), Volaris (79%) or Southwest (77%) when booking your flight. These represent the most reliable airlines when flying from San Antonio to Las Vegas.

  • What are the cheapest flights from San Antonio to Las Vegas?

    Looking at all options, your cheapest flight can be booked for $90. While the most popular route (San Antonio - Las Vegas Harry Reid Intl) can be booked for $207 on average, our data indicates $295 when flying from San Antonio to Las Vegas.

  • Can I find deals for flights from San Antonio to Las Vegas that include hotel bookings?

    Yes. In addition to deals on San Antonio to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Las Vegas.

  • Can I find deals for business class flights from San Antonio to Las Vegas?

    Yes. Cheapflights offers flight deals from San Antonio to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Las Vegas?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Las Vegas (average of $58). Flying from San Antonio to Las Vegas in March is currently the most expensive (average of $91). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Henderson
Mesquite
North Las Vegas
Kingman
Winchester
Boulder City
Needles
Sunrise Manor

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from San Antonio to Las Vegas

Discover the top 6 airlines that operate flights from San Antonio to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$221FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$87Average$179FlexibilityNo cancel feeOn-time65%
DeltaCheapest$117Average$257FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$305FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$219Average$458FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$222Average$445FlexibilityNo cancel feeOn-time63%

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