Cheap Flights from San Diego (SAN) to St. Augustine (UST)

Popular airlines from San Diego Intl. Airport (SAN) to St. Augustine, FL (UST-Northeast Florida Regional)

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST) cost?
Grab a cheap one-way flight or cheap return flight from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST)?
Planning your getaway for is a good way to save, as it's the cheapest month for flights between SAN and UST. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SAN to UST. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST)?
You'll need to book a flight with a layover if you're traveling from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from SAN to UST?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST)?
To avoid potential delays on the San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST) route, aim to travel before 3 PM. Later flights have a 22% higher chance of being 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 San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST) last-minute?
Last-minute fares from SAN to UST are typically more expensive. To secure the lowest rates, start looking for flights ahead of time. That being said, if your travel plans are flexible, it's possible to score a cheap ticket right before your journey.
Is it cheaper to book a SAN to UST flight and hotel package?
Compared with arranging hotels and flights separately, booking a SAN to UST flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Just secure your flights and select from our wide range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Northeast Florida Regional Airport (UST)?
In most instances, you can modify or cancel your SAN to UST flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Origin airport
San Diego Intl.
Destination airport
Northeast Florida Regional
Distance
2113 mi

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San Diego to St. Augustine Flights

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

 

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

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

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*Available to One Key members.