$258 Cheap Flights from St. Thomas (STT) to Phoenix (PHX)

View $258 flight on Tue, Jan 20, 2026Opens in a new window

Popular airlines from Cyril E. King Airport (STT) to Phoenix Sky Harbor Intl. Airport (PHX)

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Cheap Flights from St. Thomas to Phoenix (STT-PHX)

Prices were available within the past 7 days and start at $258 for one-way flights and $493 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Sep 20 - Thu, Sep 25
STT
St. Thomas
PHX
Phoenix
$493 Roundtrip, found 5 days ago
$493
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Sep 20 from St. Thomas to Phoenix, returning Thu, Sep 25, priced at $493 found 5 days ago
JetBlue Airways
Sat, Sep 20 - Thu, Sep 25
STT
St. Thomas
PHX
Phoenix
$494 Roundtrip, found 5 days ago
$494
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sat, Sep 20 from St. Thomas to Phoenix, returning Thu, Sep 25, priced at $494 found 5 days ago
United
Sat, Sep 20 - Thu, Sep 25
STT
St. Thomas
PHX
Phoenix
$518 Roundtrip, found 5 days ago
$518
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 20 from St. Thomas to Phoenix, returning Thu, Sep 25, priced at $518 found 5 days ago
American Airlines
Wed, Sep 10 - Mon, Sep 15
STT
St. Thomas
PHX
Phoenix
$532 Roundtrip, found 4 hours ago
$532
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Sep 10 from St. Thomas to Phoenix, returning Mon, Sep 15, priced at $532 found 4 hours ago
Delta
Tue, Dec 23 - Sun, Jan 4
STT
St. Thomas
PHX
Phoenix
$539 Roundtrip, found 17 hours ago
$539
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Dec 23 from St. Thomas to Phoenix, returning Sun, Jan 4, priced at $539 found 17 hours ago
American Airlines
Thu, Oct 16 - Sun, Oct 26
STT
St. Thomas
PHX
Phoenix
$539 Roundtrip, found 1 day ago
$539
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 16 from St. Thomas to Phoenix, returning Sun, Oct 26, priced at $539 found 1 day ago
American Airlines
Sat, Sep 20 - Thu, Sep 25
STT
St. Thomas
PHX
Phoenix
$549 Roundtrip, found 5 days ago
$549
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Sep 20 from St. Thomas to Phoenix, returning Thu, Sep 25, priced at $549 found 5 days ago
Delta
Sat, Sep 20 - Thu, Sep 25
STT
St. Thomas
PHX
Phoenix
$554 Roundtrip, found 5 days ago
$554
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep 20 from St. Thomas to Phoenix, returning Thu, Sep 25, priced at $554 found 5 days ago
Delta
Mon, Dec 22 - Sun, Jan 4
STT
St. Thomas
PHX
Phoenix
$564 Roundtrip, found 17 hours ago
$564
Roundtrip
found 17 hours ago
Select Delta flight, departing Mon, Dec 22 from St. Thomas to Phoenix, returning Sun, Jan 4, priced at $564 found 17 hours ago
Cape Air
Wed, Sep 10 - Mon, Sep 15
STT
St. Thomas
PHX
Phoenix
$607 Roundtrip, found 4 hours ago
$607
Roundtrip
found 4 hours ago
Select Cape Air flight, departing Wed, Sep 10 from St. Thomas to Phoenix, returning Mon, Sep 15, priced at $607 found 4 hours ago

Find the cheapest month to fly from St. Thomas (STT) to Phoenix (PHX)

November is typically the cheapest month to fly

From $325 - $1,007 per traveler.

Graph displaying average flight prices per month

Alternative airports near Phoenix

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

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $739
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $739
Flights from St. Thomas (STT) to Phoenix (PHX)
Origin airport
Cyril E. King
Destination airport
Sky Harbor Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
$492
Distance
3074 mi

St. Thomas to Phoenix Flights

The cheapest times to fly from St. Thomas to Phoenix

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

 

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

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

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 St. Thomas to Phoenix in 2025. You can also book with separate airlines for your outbound and return journeys, from $258 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 St. Thomas to Phoenix 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 St. Thomas to Phoenix 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 Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX) cost?
Grab a cheap one-way flight from $258 or cheap return flight from $493 from Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX) 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 Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX)?
Planning your trip for September may help you find better deals, as it's the cheapest month for flights between STT and PHX. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STT to PHX flight.
How many flights per day from Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX)?
Direct flights from Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STT to PHX?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX)?
To avoid possible delays on the Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX) route, aim to fly before 3 PM. Later departures have a 22% higher chance of cancellation.**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 Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX) last-minute?
Last-minute fares from STT to PHX are generally more expensive. To lock in the lowest prices, start searching for flights well ahead of time. That being said, if you're flexible with your travel dates, it's possible to score a cheap fare just before your departure.
Is it cheaper to book a STT to PHX flight and hotel package?
You'll generally save money by booking a STT to PHX flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred flights and accommodations, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Cyril E. King Airport (STT) to Sky Harbor Intl. Airport (PHX)?
In most cases, you're able to reschedule or cancel your STT to PHX flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.