Cheap Flights from San Francisco (SFO) to St. Augustine (UST)

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

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Flights from San Francisco (SFO) to St. Augustine (UST)
Origin airport
San Francisco Intl.
Destination airport
Northeast Florida Regional
Distance
2395 mi

San Francisco to St. Augustine Flights

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

 

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

Sunday is one of the best days to book for cheap flights from San Francisco 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 Francisco 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 Francisco 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 Francisco 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 Francisco 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.

 

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST) cost?
Lock in a cheap one-way flight or cheap return flight from San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST)?
Planning your trip for is a good way to save, as it's the cheapest month for flights between SFO and UST. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from SFO to UST. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST)?
Nonstop flights from San Francisco Intl. Airport (SFO) 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 Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SFO to UST?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, time of year and other factors.*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 Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST)?
Book a flight from San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST) that leaves before 3 PM to reduce the risk of delays and cancellations. Later departures 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 San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST) last-minute?
Last-minute fares from SFO to UST are generally more expensive. To lock in the best prices, start searching for flights early. That being said, if you're flexible with your travel plans, you may score a cheap ticket just before your departure.
Is it cheaper to book a SFO to UST flight and hotel package?
Compared with arranging flights and hotels separately, booking a SFO to UST flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the stress out of travel planning. Simply secure your flights and select from our wide range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Northeast Florida Regional Airport (UST)?
It's generally possible to reschedule or cancel your SFO to UST flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.