$430 Cheap Flights from Watertown (ART) to St. Thomas (STT)

View $430 flight on Sat, Nov 22, 2025Opens in a new window

Popular airlines from Watertown, NY (ART-Watertown Intl.) to Cyril E. King Airport (STT)

Cheap Flights from Watertown to St. Thomas (ART-STT)

Prices were available within the past 7 days and start at $430 for one-way flights and $986 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$986 Roundtrip, found 9 hours ago
$986
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $986 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,076 Roundtrip, found 9 hours ago
$1,076
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,076 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,104 Roundtrip, found 9 hours ago
$1,104
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,104 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,174 Roundtrip, found 9 hours ago
$1,174
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,174 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,194 Roundtrip, found 9 hours ago
$1,194
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,194 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,264 Roundtrip, found 9 hours ago
$1,264
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,264 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,273 Roundtrip, found 9 hours ago
$1,273
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,273 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,292 Roundtrip, found 9 hours ago
$1,292
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,292 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,358 Roundtrip, found 9 hours ago
$1,358
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,358 found 9 hours ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
ART
Watertown
STT
St. Thomas
$1,382 Roundtrip, found 9 hours ago
$1,382
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Watertown to St. Thomas, returning Tue, Apr 28, priced at $1,382 found 9 hours ago

Frequently asked questions

How much does a flight from Watertown Intl. Airport (ART) to Cyril E. King Airport (STT) cost?
Secure a cheap one-way flight from $430 or cheap return flight from $986 from Watertown Intl. Airport (ART) 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 Watertown Intl. Airport (ART) to Cyril E. King Airport (STT)?
April is the least expensive month to fly from ART to STT. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Watertown Intl. Airport (ART) to Cyril E. King Airport (STT)?
To find the cheapest airline flying from ART to STT, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Watertown Intl. Airport (ART) to Cyril E. King Airport (STT)?
Nonstop flights from Watertown Intl. Airport (ART) 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 Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ART to STT?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Watertown Intl. Airport (ART) to Cyril E. King Airport (STT)?
To avoid possible delays on the Watertown Intl. Airport (ART) to Cyril E. King Airport (STT) route, fly before 3 PM. Departures after this hour 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 Watertown Intl. Airport (ART) to Cyril E. King Airport (STT) last-minute?
Last-minute bookings from ART to STT are usually more expensive. To lock in the lowest prices, start looking for flights well in advance. That said, if you're flexible with your travel plans, you may score a cheap fare right before your journey.
Is it cheaper to book an ART to STT flight and hotel package?
Compared with arranging hotels and flights separately, booking an ART to STT flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Watertown Intl. Airport (ART) to Cyril E. King Airport (STT)?
If you reserved your ART to STT flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after 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 want more information.

Travel information

Origin airport
Watertown Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines
Roundtrip price
$986
Distance
1885 mi

Book with confidence

Watertown to St. Thomas Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Watertown 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 Watertown 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 Watertown to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $430 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 Watertown 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 Watertown 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.

 

Watertown to St. Thomas Flights

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*Available to One Key members.