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

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      Travellers and cabin class, 1 Adult, Economy
      Southwest Airlines
      Frontier Airlines
      Volaris

      Compare Harry Reid International to San Antonio International flight deals

      Find the cheapest month or even day of the year to fly to San Antonio International

      Book the best San Antonio International fare with no extra fees

      Flight deals from Harry Reid International to San Antonio International

      Looking for a cheap last-minute deal or the best return flight from Harry Reid International Airport to San Antonio International Airport? If you want to travel next month, return fares start from $209. Find the lowest prices on one-way and return tickets right here.
      San Antonio.$131 per passenger.Departing Thu, 29 Oct, returning Mon, 2 Nov.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Thu, 29 Oct, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Mon, 2 Nov, arriving in Harry Reid International.Price includes taxes and charges.From $131, select.
      San Antonio.$166 per passenger.Departing Thu, 19 Nov, returning Thu, 3 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Thu, 19 Nov, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Thu, 3 Dec, arriving in Harry Reid International.Price includes taxes and charges.From $166, select.
      San Antonio.$180 per passenger.Departing Fri, 13 Nov, returning Sat, 14 Nov.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Fri, 13 Nov, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Sat, 14 Nov, arriving in Harry Reid International.Price includes taxes and charges.From $180, select.
      San Antonio.$209 per passenger.Departing Fri, 9 Oct, returning Fri, 16 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Fri, 9 Oct, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Fri, 16 Oct, arriving in Harry Reid International.Price includes taxes and charges.From $209, select.
      San Antonio.$294 per passenger.Departing Sat, 5 Dec, returning Thu, 10 Dec.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Sat, 5 Dec, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Thu, 10 Dec, arriving in Harry Reid International.Price includes taxes and charges.From $294, select.
      San Antonio.$356 per passenger.Departing Thu, 17 Dec, returning Sat, 19 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Thu, 17 Dec, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Sat, 19 Dec, arriving in Harry Reid International.Price includes taxes and charges.From $356, select.
      San Antonio.$439 per passenger.Departing Mon, 28 Sep, returning Tue, 6 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Mon, 28 Sep, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Tue, 6 Oct, arriving in Harry Reid International.Price includes taxes and charges.From $439, select.
      San Antonio.$461 per passenger.Departing Tue, 2 Feb, returning Tue, 9 Feb.Return flight with United.Outbound indirect flight with United, departs from Harry Reid International on Tue, 2 Feb, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Tue, 9 Feb, arriving in Harry Reid International.Price includes taxes and charges.From $461, select.
      San Antonio.$461 per passenger.Departing Tue, 29 Dec, returning Tue, 5 Jan.Return flight with United.Outbound indirect flight with United, departs from Harry Reid International on Tue, 29 Dec, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Tue, 5 Jan, arriving in Harry Reid International.Price includes taxes and charges.From $461, select.
      San Antonio.$461 per passenger.Departing Sat, 16 Jan, returning Sat, 23 Jan.Return flight with United.Outbound indirect flight with United, departs from Harry Reid International on Sat, 16 Jan, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Sat, 23 Jan, arriving in Harry Reid International.Price includes taxes and charges.From $461, select.
      San Antonio.$468 per passenger.Departing Mon, 21 Sep, returning Wed, 30 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Mon, 21 Sep, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Wed, 30 Sep, arriving in Harry Reid International.Price includes taxes and charges.From $468, select.
      San Antonio.$542 per passenger.Departing Fri, 15 Jan, returning Mon, 18 Jan.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Fri, 15 Jan, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Mon, 18 Jan, arriving in Harry Reid International.Price includes taxes and charges.From $542, select.
      San Antonio.$613 per passenger.Departing Fri, 18 Sep, returning Mon, 28 Sep.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Fri, 18 Sep, arriving in San Antonio International.Inbound direct flight with Frontier Airlines departs from San Antonio International on Mon, 28 Sep, arriving in Harry Reid International.Price includes taxes and charges.From $613, select.
      San Antonio.$625 per passenger.Departing Thu, 11 Mar, returning Mon, 15 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Harry Reid International on Thu, 11 Mar, arriving in San Antonio International.Inbound indirect flight with Southwest Airlines, departs from San Antonio International on Mon, 15 Mar, arriving in Harry Reid International.Price includes taxes and charges.From $625, select.
      San Antonio.$631 per passenger.Departing Thu, 29 Apr, returning Mon, 3 May.Return flight with American Airlines.Outbound indirect flight with American Airlines, departs from Harry Reid International on Thu, 29 Apr, arriving in San Antonio International.Inbound indirect flight with American Airlines, departs from San Antonio International on Mon, 3 May, arriving in Harry Reid International.Price includes taxes and charges.From $631, select.
      San Antonio.$720 per passenger.Departing Fri, 11 Jun, returning Fri, 25 Jun.Return flight with United.Outbound indirect flight with United, departs from Harry Reid International on Fri, 11 Jun, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Fri, 25 Jun, arriving in Harry Reid International.Price includes taxes and charges.From $720, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Harry Reid International to San Antonio International found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Harry Reid International to San Antonio International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Harry Reid International to San Antonio International flights are currently cheapest in November.
      Sep
      from $468
      Oct
      from $209
      Nov
      from $180
      Dec
      from $294
      Jan
      from $461
      Feb
      from $461
      Mar
      from $625
      Apr
      from $721
      May
      from $721
      Jun
      from $720
      Jul
      Find prices
      Aug
      Find prices

      Direct flights from Harry Reid International to San Antonio International

      Frontier Airlines
      Southwest Airlines
      Volaris

      Harry Reid International to San Antonio International: Alternative routes

      Compare routes from Harry Reid International to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

      San Antonio International

      13km from central San Antonio
      ClosestCheapest
      from $131
      Search flights

      Las Vegas to San Antonio: Flight information

      The things to know before you go.
      Cheapest flight found$131
      Cheapest month to flyOctober
      Average flight time2 hrs, 39 mins
      Most popular airlineSouthwest Airlines
      Average flights per week50

      Finding cheap flights from Harry Reid International to San Antonio International: Frequently asked questions

      The best price we found for a return flight from Harry Reid International to San Antonio International is $131. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      2 hours and 39 minutes is the average flight time from Harry Reid International to San Antonio International.
      Southwest Airlines, Frontier Airlines and Volaris fly direct from Harry Reid International to San Antonio International.
      As of September 2026, there are 50 flights per week flying from Harry Reid International to San Antonio International.
      The cheapest month to fly from Harry Reid International to San Antonio International is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Harry Reid International Airport to San Antonio International Airport on Thursday, 29 October 2026.
      Yes – the average flight time is 2 hours and 39 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Frontier Airlines offers the cheapest flight tickets to San Antonio International.

      Flying from Harry Reid International Airport (LAS) to San Antonio International Airport (SAT): what you need to know

      • Around 2 hours 40 minutes is how long you'll be travelling on a direct flight from Harry Reid International Airport to San Antonio International Airport.

      • San Antonio is two hours ahead of Las Vegas and observes the UTC-6 timezone.

      • You can choose from 21 weekly Harry Reid International Airport to San Antonio International Airport flights. The 00:30 departure with Spirit Airlines is the earliest flight available. Spirit Airlines operates the latest service of the day at 23:59.

      • Give yourself plenty of time to catch your LAS to SAT flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

      • Flying during a peak time such as April? Major public holidays and other popular periods can mean longer lines at airport checkpoints. Play things extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

      • You can travel nonstop to San Antonio, the United States. Take to the skies with one of these carriers offering direct flights from Harry Reid International Airport to San Antonio International Airport:

      • Most passengers choose to travel with Southwest Airlines on this route.

      • With a dependable 92.77% of services arriving as planned, Spirit Airlines is the most punctual carrier offering LAS to SAT flights.

      • If you want to include a stop along the way, simply deselect 'Direct flights only' when searching for your ticket from Harry Reid International Airport to San Antonio International Airport. Here are the top stopovers between LAS and SAT:

        • Denver International Airport

        • Phoenix Sky Harbour Airport

        • Colorado Springs Peterson Field Airport

      How to find the cheapest flights from Harry Reid International Airport (LAS) to San Antonio International Airport (SAT)

      • The lowest price we've found for a one-way Harry Reid International Airport to San Antonio International Airport flight is $110. A round-trip plane ticket is currently $131. Depending on the availability and when you book, these fares could change.

      • To get your hands on cheap tickets from LAS to SAT, book early. Airlines typically offer their most competitively priced fares when flights are first released.

      • Schedule your trip for May. That's the cheapest month for flights from Harry Reid International Airport to San Antonio International Airport. If you have flexibility with your dates, use the 'Whole month' tool to find the cheapest price across every month.

      • Picking up cheap flights from LAS to SAT couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when fares go down.

      • Tailor your trip using filters. Choose your departure and arrival times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Harry Reid International Airport to San Antonio International Airport.

      Handy information about Harry Reid International Airport (LAS)

      • You'll find LAS at 5757 Wayne Newton Boulevard.

      • 79% of flights that take off from Harry Reid International Airport reach their destination on schedule.

      • Central Las Vegas to Harry Reid International Airport is around 8 kilometres. Depending on traffic, it'll take you about 10 minutes to get there if you're catching a taxi, ride-sharing or driving.

      • Expect a trip time of around 25 minutes when using public transport.

      • Catching an early flight from Harry Reid International Airport to San Antonio International Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by picking one of these stays close to LAS:

      Arriving at San Antonio International Airport (SAT)

      When to fly to San Antonio International Airport (SAT)

      • July is the most popular month for flights from Harry Reid International Airport to San Antonio International Airport. For a quieter experience, visit San Antonio in March.

      • The warmest month in San Antonio is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Lock in your flights from Harry Reid International Airport to San Antonio International Airport in this month if this is the type of weather you like.

      • Search for cheap tickets from LAS to SAT in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 20ºC (68ºF) on average.

      Explore more of the United States

      • San Antonio has loads to offer, but there are so many other corners of the United States you should also see. About 306 kilometres east of San Antonio, a trip to Houston will keep you on the move. Don't miss top attractions like The Museum of Fine Arts, Houston, Beck Building, Houston Museum of Natural Science and The Menil Collection.

      • Around 402 kilometres north-east of San Antonio, Dallas is another essential stop in the United States. Experience this destination's highlights firsthand at Meyerson Symphony Centre, Winspear Opera House and Dallas Museum of Art.

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      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.