Cheap Flights from San Francisco (SFO) to St. Thomas (SPB)

Popular airlines from San Francisco Intl. Airport (SFO) to St. Thomas (SPB-St. Thomas Seaplane Base)

Alternative airports near St. Thomas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cyril E. King STT. Cheapest option available. Flights from $926
STT
Cyril E. King
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Flights from $926

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to St. Thomas Seaplane Base Airport (SPB) cost?
Lock in a cheap one-way flight or cheap return flight from San Francisco Intl. Airport (SFO) to St. Thomas Seaplane Base Airport (SPB) 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 St. Thomas Seaplane Base Airport (SPB)?
Flying in is a great way to save, as it's the cheapest month for flights between SFO and SPB. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to St. Thomas Seaplane Base Airport (SPB)?
To find the cheapest airline that'll fly you from SFO to SPB, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from San Francisco Intl. Airport (SFO) to St. Thomas Seaplane Base Airport (SPB)?
Nonstop flights from San Francisco Intl. Airport (SFO) to St. Thomas Seaplane Base Airport (SPB) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SFO to SPB?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, airline 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 St. Thomas Seaplane Base Airport (SPB)?
Book a flight from San Francisco Intl. Airport (SFO) to St. Thomas Seaplane Base Airport (SPB) that takes off before 3 PM to reduce the risk of cancellations and delays. 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 St. Thomas Seaplane Base Airport (SPB) last-minute?
Booking your flight from SFO to SPB shortly before your trip is generally more expensive. But if there's some wiggle room with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a SFO to SPB flight and hotel package?
Compared with arranging flights and hotels separately, booking a SFO to SPB flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place takes the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to St. Thomas Seaplane Base Airport (SPB)?
Generally, it's possible to reschedule or cancel your SFO to SPB 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 allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
San Francisco Intl.
Destination airport
St. Thomas Seaplane Base
Distance
3687 mi

Book with confidence

Book with confidence

San Francisco to St. Thomas Flights

The cheapest times to fly from San Francisco to St. Thomas

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

 

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

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

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. Thomas 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. Thomas 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. Thomas 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 Francisco to St. Thomas Flights
*Available to One Key members.