$225 Cheap Flights from Portland (PDX) to St. Thomas (STT)

View $225 flight on Sat, Feb 21, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Cyril E. King Airport (STT)

Cheap Flights from Portland to St. Thomas (PDX-STT)

Prices were available within the past 7 days and start at $225 for one-way flights and $456 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Feb 9 - Thu, Feb 12
PDX
Portland
STT
St. Thomas
$456 Roundtrip, found 3 days ago
$456
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Feb 9 from Portland to St. Thomas, returning Thu, Feb 12, priced at $456 found 3 days ago
Southwest Airlines
Sat, Feb 21 - Fri, Feb 27
PDX
Portland
STT
St. Thomas
$486 Roundtrip, found 3 days ago
$486
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Sat, Feb 21 from Portland to St. Thomas, returning Fri, Feb 27, priced at $486 found 3 days ago
United
Mon, Feb 9 - Thu, Feb 12
PDX
Portland
STT
St. Thomas
$501 Roundtrip, found 3 days ago
$501
Roundtrip
found 3 days ago
Select United flight, departing Mon, Feb 9 from Portland to St. Thomas, returning Thu, Feb 12, priced at $501 found 3 days ago
American Airlines
Fri, Feb 6 - Fri, Feb 13
PDX
Portland
STT
St. Thomas
$506 Roundtrip, found 1 day ago
$506
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Feb 6 from Portland to St. Thomas, returning Fri, Feb 13, priced at $506 found 1 day ago
American Airlines
Mon, Feb 9 - Thu, Feb 12
PDX
Portland
STT
St. Thomas
$511 Roundtrip, found 3 days ago
$511
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Feb 9 from Portland to St. Thomas, returning Thu, Feb 12, priced at $511 found 3 days ago
Delta
Mon, Feb 9 - Thu, Feb 12
PDX
Portland
STT
St. Thomas
$516 Roundtrip, found 3 days ago
$516
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Feb 9 from Portland to St. Thomas, returning Thu, Feb 12, priced at $516 found 3 days ago
Delta
Mon, Feb 9 - Thu, Feb 12
PDX
Portland
STT
St. Thomas
$521 Roundtrip, found 3 days ago
$521
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Feb 9 from Portland to St. Thomas, returning Thu, Feb 12, priced at $521 found 3 days ago
Southwest Airlines
Sat, Feb 21 - Fri, Feb 27
PDX
Portland
STT
St. Thomas
$531 Roundtrip, found 3 days ago
$531
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Sat, Feb 21 from Portland to St. Thomas, returning Fri, Feb 27, priced at $531 found 3 days ago
United
Mon, Feb 9 - Thu, Feb 12
PDX
Portland
STT
St. Thomas
$546 Roundtrip, found 3 days ago
$546
Roundtrip
found 3 days ago
Select United flight, departing Mon, Feb 9 from Portland to St. Thomas, returning Thu, Feb 12, priced at $546 found 3 days ago
JetBlue Airways
Thu, Apr 30 - Mon, May 4
PDX
Portland
STT
St. Thomas
$817 Roundtrip, found 2 days ago
$817
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Apr 30 from Portland to St. Thomas, returning Mon, May 4, priced at $817 found 2 days ago

Find the cheapest month to fly from Portland (PDX) to St. Thomas (STT)

April is typically the cheapest month to fly

From $251 - $729 per traveler.

Alternative airports near St. Thomas

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

Select flight to Terrance B. Lettsome Intl. EIS. Flights from $1,130
EIS
Terrance B. Lettsome Intl.
Flights from $1,130

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Cyril E. King Airport (STT) cost?
Grab a cheap one-way flight from $225 or cheap return flight from $456 from Portland Intl. Airport (PDX) to Cyril E. King Airport (STT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Cyril E. King Airport (STT)?
Traveling in February is a good way to save, as it's the cheapest month for flights between PDX and STT. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Cyril E. King Airport (STT)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PDX to STT flight.
How many flights per day from Portland Intl. Airport (PDX) to Cyril E. King Airport (STT)?
Direct flights from Portland Intl. Airport (PDX) to Cyril E. King Airport (STT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PDX to STT?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 Portland Intl. Airport (PDX) to Cyril E. King Airport (STT)?
To land at Cyril E. King Airport (STT) on time, opt for a flight that leaves Portland Intl. Airport (PDX) before 3 PM. The chance 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 Portland Intl. Airport (PDX) to Cyril E. King Airport (STT) last-minute?
Last-minute bookings from PDX to STT are generally more expensive. To secure the best rates, start searching for flights well in advance. That said, if you're flexible with your travel dates, you may find a cheap fare just before your departure.
Is it cheaper to book a PDX to STT flight and hotel package?
Securing a PDX to STT flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Cyril E. King Airport (STT)?
If you booked your PDX to STT flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Portland Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$456
Distance
3766 mi

Book with confidence

Portland to St. Thomas Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Portland 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 Portland 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 Portland to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $225 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 Portland 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 Portland 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.

 

Portland to St. Thomas Flights

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*Available to One Key members.