Cheap Flights from Portland (PDX) to St. Thomas (SPB)

Popular airlines from Portland International Airport (PDX) to St. Thomas (SPB-St. Thomas Seaplane Base)

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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 $711
STT
Cyril E. King
Cheapest
Flights from $711

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to St. Thomas Seaplane Base Airport (SPB) cost?
Snag a cheap one-way flight or cheap return flight from Portland Intl. Airport (PDX) 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 deals on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to St. Thomas Seaplane Base Airport (SPB)?
The cheapest month to fly from PDX to SPB is , when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to St. Thomas Seaplane Base Airport (SPB)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from PDX to SPB. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Portland Intl. Airport (PDX) to St. Thomas Seaplane Base Airport (SPB)?
Direct flights from Portland Intl. Airport (PDX) to St. Thomas Seaplane Base Airport (SPB) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PDX to SPB?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the airline and season.*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 St. Thomas Seaplane Base Airport (SPB)?
Select a flight from Portland Intl. Airport (PDX) to St. Thomas Seaplane Base Airport (SPB) that takes off before 3 PM to reduce the likelihood of delays and cancellations. 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 Portland Intl. Airport (PDX) to St. Thomas Seaplane Base Airport (SPB) last-minute?
Last-minute fares from PDX to SPB are usually more expensive. For the best rates, start looking for flights early. That being said, if you're flexible with your travel plans, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a PDX to SPB flight and hotel package?
Opting for a PDX to SPB flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our wide range of hotels and then add activities, car rentals and flights 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 St. Thomas Seaplane Base Airport (SPB)?
It's usually possible to reschedule or cancel your PDX to SPB flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Portland Intl.
Destination airport
St. Thomas Seaplane Base
Distance
3767 mi

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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 . 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 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
*Available to One Key members.