Cheap Flights from Phoenix (PHX) to St. Thomas (SPB)

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) 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 $651
STT
Cyril E. King
Cheapest
Flights from $651
Select flight to Terrance B. Lettsome Intl. EIS. Flights from $984
EIS
Terrance B. Lettsome Intl.
Flights from $984

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to St. Thomas Seaplane Base Airport (SPB) cost?
Lock in a cheap one-way flight or cheap return flight from Sky Harbor Intl. Airport (PHX) 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 Sky Harbor Intl. Airport (PHX) to St. Thomas Seaplane Base Airport (SPB)?
Traveling in is a great way to save, as it's the cheapest month for flights between PHX and SPB. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to St. Thomas Seaplane Base Airport (SPB)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHX to SPB flight.
How many flights per day from Sky Harbor Intl. Airport (PHX) to St. Thomas Seaplane Base Airport (SPB)?
Direct flights from Sky Harbor Intl. Airport (PHX) 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 Expedia's filters. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHX to SPB?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a number of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to St. Thomas Seaplane Base Airport (SPB)?
To reach St. Thomas Seaplane Base Airport (SPB) on time, choose a flight that leaves Sky Harbor Intl. Airport (PHX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Sky Harbor Intl. Airport (PHX) to St. Thomas Seaplane Base Airport (SPB) last-minute?
Holding off until right before your break to book a ticket from PHX to SPB often results in higher prices. While you may find some last-minute deals, there's no guarantee. Keep your travel plans flexible for a better chance of landing a bargain.
Is it cheaper to book a PHX to SPB flight and hotel package?
You can save money by booking a PHX to SPB flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to St. Thomas Seaplane Base Airport (SPB)?
You can usually cancel or reschedule your PHX to SPB flight. However, for bookings made more than 24 hours ago, additional fees 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 information on our Customer Service portal.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
St. Thomas Seaplane Base
Distance
3076 mi

Book with confidence

Phoenix to St. Thomas Flights

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

 

The best time to book a flight from Phoenix to St. Thomas

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

 

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