Cheap Flights from San Antonio International to San Juan

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      Compare San Antonio International to San Juan flight deals

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

      Book the best San Juan fare with no extra fees

      Flight deals from San Antonio International to San Juan

      Looking for a cheap last-minute deal or the best return flight from San Antonio International Airport to San Juan? If you want to travel next month, return fares start from Rs82,630. Find the lowest prices on one-way and return tickets right here.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from San Antonio International to San Juan found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from San Antonio International to San Juan

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Antonio International to San Juan flights are currently cheapest in October.

      San Antonio to San Juan: Flight information

      The things to know before you go.
      Cheapest flight foundRs40,856
      Cheapest month to flyOctober

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

      There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
      The best price we found for a return flight from San Antonio International to San Juan is Rs82,260. 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.
      Currently, there are no airlines that fly direct from San Antonio International to San Juan. But we found flights with one or more stops from Rs82,260.
      As of September 2026, there are no flights flying from San Antonio International to San Juan.
      The cheapest month to fly from San Antonio International to San Juan is usually November.
      If you're flying from San Antonio International Airport, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the centre of San Juan. We've found flights into this airport from Rs82,260.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Antonio International Airport to San Juan on Friday, 6 November 2026.
      No airlines currently offer direct flights between San Antonio International Airport and San Juan. Most routes have one or more stops.
      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 Juan 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 Juan is around 40 days in advance, so don’t leave your flight to the last minute.

      In September, the average temperature is usually around 28°C. August is typically the warmest month in San Juan, when it usually averages around 30°C. You can expect the least rain in January. The coldest month is February, with temperatures averaging 22°C. The rainiest month is September.
      Currently, Frontier Airlines offers the cheapest flight tickets to San Juan.

      Travelling from San Antonio International Airport (SAT) to San Juan: what you need to know

      • Hop on a direct flight from San Antonio International Airport to San Juan and you'll be travelling for around 5 hours 5 minutes.

      • San Antonio International Airport is located in San Antonio. Based in the UTC-4 timezone, San Juan is two hours ahead of San Antonio.

      • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your SAT to San Juan flight.

      • During popular months such as July, you'll want to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a peak period in general.

      • Direct San Antonio International Airport to San Juan tickets are available for booking. Luis Munoz Marin International Airport (SJU) is where you'll step off the plane.

      • Be on the lookout for promotions from Spirit Airlines. This airline has direct flights from San Antonio International Airport to San Juan.

      • A stopover is the ideal opportunity to take a break from travelling and possibly even explore another city. When browsing for plane tickets from SAT to San Juan, deselect the 'Direct flights only' box to see where you can visit along the way. Here are some popular options to consider:

        • Atlanta Hartsfield-Jackson International Airport (ATL)

        • Cancun International Airport (CUN)

        • Houston Hobby Airport (HOU)

      • The journey from central San Antonio to SAT takes around 50 minutes by public transport. If you ride-share, drive or grab a taxi, you'll cover the 13 kilometres in 20 minutes or so, depending on traffic.

      • Want an easy start to your trip? Stay near SAT. Whether you're catching an early flight from San Antonio International Airport to San Juan or want to avoid feeling rushed, these hotels put convenience first:

      • San Antonio International Airport gets high marks for on-time performance. 82% of flights that take off from SAT reach their destination without delay.

      • SAT is located at 9800 Airport Boulevard.

      How to find the cheapest flights from San Antonio International Airport (SAT) to San Juan

      • Rs40,856 is the cheapest price we've seen for a one-way San Antonio International Airport to San Juan flight. A round-trip ticket right now is Rs82,260. Depending on when you book and the availability, these fares could change.

      • To find cheap flights from SAT to San Juan, book early. Airlines generally offer the most competitive fares when tickets are first released.

      • The 'Whole month' search tool will show you the cheapest tickets from San Antonio International Airport to San Juan throughout the month. It's a great way to find a bargain if your dates are flexible.

      • Save time looking for cheap flights from SAT to San Juan by setting up a Price Alert. You'll receive an email or push notification on the app when a new discounted fare appears.

      • Select your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from San Antonio International Airport to San Juan by 'Fastest,' 'Cheapest' or 'Best.'

      Airports in San Juan

      Luis Munoz Marin International Airport (SJU)

      • Luis Munoz Marin International Airport (SJU) is around 11 kilometres from central San Juan. If you're grabbing a taxi or a ride-share, the drive takes roughly 20 minutes.

      • Travelling by public transport takes about 1 hour.

      • Consider booking a hotel close to SJU if you're coming in on a late flight from San Antonio International Airport to San Juan. Choose one of these accommodation options and avoid the hassle of a long transfer:

      • Reserving your vehicle from Luis Munoz Marin International Airport around two weeks ahead of your flight from SAT to San Juan can help you secure the lowest rate.

      Best time to go to San Juan

      • March is the most popular month for flights from San Antonio International Airport to San Juan. To escape the crowds, plan your trip to San Juan in December.

      • The warmest month in San Juan is August, with temperatures ranging between 24ºC and 32ºC. Book your San Antonio International Airport to San Juan plane ticket then if that's the weather you find most pleasant.

      • February sees average temperatures of between 21ºC and 28ºC. Search for a cheap ticket from SAT to San Juan around that time if you'd rather travel in cooler conditions.

      More about San Juan

      • When it comes to searching for somewhere to lay your head, you'll find the most popular stays in San Juan right here. Check out these hotels once you've locked in your flight from San Antonio International Airport to San Juan:

      • Every great holiday has to include a little sightseeing. Esperanza Beach, Balneario El Escambron and Escambron Green are essential stops on your San Juan itinerary.

      Explore more of Puerto Rico

      • Aguadilla is just one of the many cities in Puerto Rico waiting to be discovered once you've seen San Juan. Around 113 kilometres away to the west, well-known attractions include Silla Aguadilla, Bridges Surf Beach and Playa Rompe Olas.

      • If there's time to check out another major stop in Puerto Rico, consider Isabela, roughly 105 kilometres west of San Juan. Playa montones, Shore Island Beach and Guajataca Forest Reserve are key reasons to visit.

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