$156 Cheap Flights from Portland (PWM) to St. Thomas (STT)

View $156 flight on Thu, Jan 1, 2026Opens in a new window

Popular airlines from Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT)

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

Prices were available within the past 7 days and start at $156 for one-way flights and $318 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Jan 1 - Thu, Jan 15
PWM
Portland
STT
St. Thomas
$318 Roundtrip, just found
$318
Roundtrip
just found
Select Delta flight, departing Thu, Jan 1 from Portland to St. Thomas, returning Thu, Jan 15, priced at $318 just found
American Airlines
Sat, Feb 7 - Wed, Feb 11
PWM
Portland
STT
St. Thomas
$321 Roundtrip, found 1 day ago
$321
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Feb 7 from Portland to St. Thomas, returning Wed, Feb 11, priced at $321 found 1 day ago
American Airlines
Mon, Feb 2 - Mon, Feb 9
PWM
Portland
STT
St. Thomas
$323 Roundtrip, found 1 day ago
$323
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Feb 2 from Portland to St. Thomas, returning Mon, Feb 9, priced at $323 found 1 day ago
American Airlines
Sat, Feb 7 - Wed, Feb 11
PWM
Portland
STT
St. Thomas
$327 Roundtrip, found 1 day ago
$327
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Feb 7 from Portland to St. Thomas, returning Wed, Feb 11, priced at $327 found 1 day ago
United
Thu, Jan 1 - Wed, Jan 14
PWM
Portland
STT
St. Thomas
$332 Roundtrip, found 3 days ago
$332
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 1 from Portland to St. Thomas, returning Wed, Jan 14, priced at $332 found 3 days ago
United
Thu, Jan 1 - Wed, Jan 14
PWM
Portland
STT
St. Thomas
$335 Roundtrip, found 3 days ago
$335
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 1 from Portland to St. Thomas, returning Wed, Jan 14, priced at $335 found 3 days ago
Delta
Thu, Jan 1 - Thu, Jan 15
PWM
Portland
STT
St. Thomas
$349 Roundtrip, just found
$349
Roundtrip
just found
Select Delta flight, departing Thu, Jan 1 from Portland to St. Thomas, returning Thu, Jan 15, priced at $349 just found
Delta
Wed, Feb 25 - Wed, Mar 4
PWM
Portland
STT
St. Thomas
$358 Roundtrip, found 6 days ago
$358
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Feb 25 from Portland to St. Thomas, returning Wed, Mar 4, priced at $358 found 6 days ago
JetBlue Airways
Sat, Sep 27 - Sun, Oct 5
PWM
Portland
STT
St. Thomas
$383 Roundtrip, found 1 day ago
$383
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sat, Sep 27 from Portland to St. Thomas, returning Sun, Oct 5, priced at $383 found 1 day ago
Southwest Airlines
Fri, Mar 6 - Thu, Mar 12
PWM
Portland
STT
St. Thomas
$740 Roundtrip, found 1 day ago
$740
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Mar 6 from Portland to St. Thomas, returning Thu, Mar 12, priced at $740 found 1 day ago

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

January is typically the cheapest month to fly

From $418 - $742 per traveler.

Frequently asked questions

How much does a flight from Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT) cost?
Get a cheap one-way flight from $156 or cheap return flight from $318 from Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT) 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 Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT)?
January is the most affordable month to fly from PWM to STT. Planning your trip for the off-season is often the key to finding better fares.
What is the cheapest airline that flies from Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from PWM to STT. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT)?
You'll need to book a flight with a layover if you're traveling from Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from PWM to STT?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*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. Jetport Airport (PWM) to Cyril E. King Airport (STT)?
Choose a flight from Portland Intl. Jetport Airport (PWM) to Cyril E. King Airport (STT) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**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. Jetport Airport (PWM) to Cyril E. King Airport (STT) last-minute?
Booking your flight from PWM to STT shortly before your trip is typically more expensive. But if you're flexible with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a PWM to STT flight and hotel package?
Securing a PWM to STT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our extensive range of accommodations and then add flights, car rentals 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. Jetport Airport (PWM) to Cyril E. King Airport (STT)?
If you booked your PWM to STT flight within 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, visit our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Portland Intl. Jetport
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$315
Distance
1776 mi

Book with confidence

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 January. 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 $156 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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Explore a world of travel with Expedia

*Available to One Key members.