Cheap Flights from Louisville (SDF) to St. Thomas (SPB)

Popular airlines from Louisville Intl. Airport (SDF) to St. Thomas (SPB-St. Thomas Seaplane Base)

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 $579
STT
Cyril E. King
Cheapest
Flights from $579
Select flight to Terrance B. Lettsome Intl. EIS. Flights from $908
EIS
Terrance B. Lettsome Intl.
Flights from $908
Flights from Louisville (SDF) to St. Thomas (SPB)
Origin airport
Louisville Intl.
Destination airport
St. Thomas Seaplane Base
Distance
1857 mi

Louisville to St. Thomas Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Louisville 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 Louisville 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 Louisville 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 Louisville 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 Louisville 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.

 

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB) cost?
Secure a cheap one-way flight or cheap return flight from Louisville Intl. Airport (SDF) 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 offers on this route.
What is the cheapest month to fly from Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB)?
Flying in is a great way to save, as it's the cheapest month for flights between SDF and SPB. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB)?
Expedia's filter tool lets you easily compare travel time, airlines 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 SDF to SPB flight.
How many flights per day from Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB)?
You'll need to take a flight with a layover if you're traveling from Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from SDF to SPB?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change depending on a number of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB)?
To avoid possible delays on the Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB) route, travel before 3 PM. Departures after this time are 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 Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB) last-minute?
Booking your plane ticket from SDF to SPB right before your trip is typically more expensive. But if there's some wiggle room with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a SDF to SPB flight and hotel package?
You'll typically save money by booking a SDF to SPB flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your preferred accommodations and flights, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to St. Thomas Seaplane Base Airport (SPB)?
You can usually cancel or reschedule your SDF to SPB flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.