Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to St. Augustine, FL (UST-Northeast Florida Regional)

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Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST) cost?
Snag a cheap one-way flight or cheap return flight from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST)?
Planning your getaway for is a great way to save, as it's the cheapest month for flights between SJU and UST. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SJU to UST flight.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST)?
Nonstop flights from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SJU to UST?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST)?
Choose a flight from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**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.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST) last-minute?
Last-minute bookings from SJU to UST are typically more expensive. To lock in the lowest rates, start looking for flights ahead of time. That said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book a SJU to UST flight and hotel package?
You can save money by booking a SJU to UST flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your ideal flights and accommodations, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Northeast Florida Regional Airport (UST)?
It's usually possible to reschedule or cancel your SJU to UST flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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San Juan to St. Augustine Flights

The cheapest times to fly from San Juan to St. Augustine

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 Juan to St. Augustine are during the month of . You can find some of the cheapest flights from San Juan to St. Augustine with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to St. Augustine

Sunday is one of the best days to book for cheap flights from San Juan to St. Augustine: 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 Juan to St. Augustine

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 Juan to St. Augustine in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Juan to St. Augustine 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 Juan to St. Augustine 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.

 

San Juan to St. Augustine Flights

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*Available to One Key members.