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Cheap flights from St. Augustine to San Antonio (UST - SAT)

UST — SAT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Best time to book a flight from St. Augustine to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from St. Augustine 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 St. Augustine to San Antonio

What is the cheapest month to book a flight from St. Augustine to San Antonio?

Currently, August is the cheapest month in which you can book a flight from St. Augustine to San Antonio (average of $295). Flying from St. Augustine to San Antonio in March is currently the most expensive (average of $376). 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 UST to SAT?

Find hourly flight availability from St. Augustine to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

One of the essential ways to save on airfare from St. Augustine to San Antonio is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 37% on airfare.

Related info for your journey

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

  • Can I find deals for flights from St. Augustine to San Antonio that include hotel bookings?

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

  • How can I find direct flights from St. Augustine to San Antonio?

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

  • Can I find deals for business class flights from St. Augustine to San Antonio?

    Yes. Cheapflights offers flight deals from St. Augustine to San Antonio 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 St. Augustine to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from St. Augustine to San Antonio (average of $295). Flying from St. Augustine to San Antonio in March is currently the most expensive (average of $376). 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.

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Traveling to a place near St. Augustine?

Book flights to St. Augustine if you plan to visit one of these locations
New Braunfels

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