Cheap Flights from Seattle (SEA) to St. Thomas (SPB)

Popular airlines from Seattle-Tacoma International Airport (SEA) to St. Thomas (SPB-St. Thomas Seaplane Base)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Find available prices by choosing your travel dates.

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to St. Thomas Seaplane Base Airport (SPB) cost?
Discover the latest flight deals from SEA to SPB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to SPB?
The cheapest flights from SEA to SPB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to SPB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SEA to SPB. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to St. Thomas Seaplane Base Airport (SPB)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) 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 filter tool. Enter your dates and select either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SEA to SPB?
You’ll generally 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 Seattle - Tacoma Intl. Airport (SEA) to St. Thomas Seaplane Base Airport (SPB)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to St. Thomas Seaplane Base Airport (SPB) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Seattle - Tacoma Intl. Airport (SEA) to St. Thomas Seaplane Base Airport (SPB) last-minute?
Waiting until just before your trip to book a ticket from SEA to SPB generally means paying more. While you might find some last-minute discounts, they aren’t always guaranteed. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book a SEA to SPB flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to SPB flight and hotel package with Expedia could result in significant savings. What’s more, having everything in one easy place takes the hassle out of planning your trip. Just secure your flights and choose from our wide range of stays, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to St. Thomas Seaplane Base Airport (SPB)?
In most cases, you can cancel or modify your SEA to SPB flight. However, there may be additional charges, especially if you booked over 24 hours ago. Check your itinerary for the airline’s guidelines and fees on flight changes, or if you’d like more details, go to our Customer Service portal.
*Available to One Key members.