$150 Cheap Flights from Washington (DCA) to St. Thomas (STT)

View $150 flight on Thu, Jan 22, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT)

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Cheap Flights from Washington to St. Thomas (DCA-STT)

Prices were available within the past 7 days and start at $150 for one-way flights and $303 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jan 22 - Mon, Jan 26
DCA
Washington
STT
St. Thomas
$303 Roundtrip, just found
$303
Roundtrip
just found
Select American Airlines flight, departing Thu, Jan 22 from Washington to St. Thomas, returning Mon, Jan 26, priced at $303 just found
United
Thu, Jan 22 - Mon, Jan 26
DCA
Washington
STT
St. Thomas
$303 Roundtrip, just found
$303
Roundtrip
just found
Select United flight, departing Thu, Jan 22 from Washington to St. Thomas, returning Mon, Jan 26, priced at $303 just found
United
Wed, Jan 7 - Sun, Jan 11
DCA
Washington
STT
St. Thomas
$308 Roundtrip, found 4 hours ago
$308
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Jan 7 from Washington to St. Thomas, returning Sun, Jan 11, priced at $308 found 4 hours ago
American Airlines
Fri, Feb 6 - Wed, Feb 11
DCA
Washington
STT
St. Thomas
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Feb 6 from Washington to St. Thomas, returning Wed, Feb 11, priced at $309 found 2 days ago
American Airlines
Thu, Jan 22 - Mon, Jan 26
DCA
Washington
STT
St. Thomas
$310 Roundtrip, just found
$310
Roundtrip
just found
Select American Airlines flight, departing Thu, Jan 22 from Washington to St. Thomas, returning Mon, Jan 26, priced at $310 just found
American Airlines
Mon, Dec 1 - Thu, Dec 4
DCA
Washington
STT
St. Thomas
$322 Roundtrip, found 1 day ago
$322
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Dec 1 from Washington to St. Thomas, returning Thu, Dec 4, priced at $322 found 1 day ago
JetBlue Airways
Tue, Dec 9 - Thu, Dec 18
DCA
Washington
STT
St. Thomas
$325 Roundtrip, found 7 hours ago
$325
Roundtrip
found 7 hours ago
Select JetBlue Airways flight, departing Tue, Dec 9 from Washington to St. Thomas, returning Thu, Dec 18, priced at $325 found 7 hours ago
American Airlines
Thu, Jan 8 - Mon, Jan 12
DCA
Washington
STT
St. Thomas
$326 Roundtrip, found 5 hours ago
$326
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Jan 8 from Washington to St. Thomas, returning Mon, Jan 12, priced at $326 found 5 hours ago
Delta
Sat, Jan 24 - Tue, Feb 3
DCA
Washington
STT
St. Thomas
$356 Roundtrip, found 3 hours ago
$356
Roundtrip
found 3 hours ago
Select Delta flight, departing Sat, Jan 24 from Washington to St. Thomas, returning Tue, Feb 3, priced at $356 found 3 hours ago
Southwest Airlines
Tue, Mar 10 - Tue, Mar 17
DCA
Washington
STT
St. Thomas
$709 Roundtrip, found 14 hours ago
$709
Roundtrip
found 14 hours ago
Select Southwest Airlines flight, departing Tue, Mar 10 from Washington to St. Thomas, returning Tue, Mar 17, priced at $709 found 14 hours ago

Find the cheapest month to fly from Washington (DCA) to St. Thomas (STT)

August is typically the cheapest month to fly

From $277 - $625 per traveler.

Alternative airports near St. Thomas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Terrance B. Lettsome Intl. EIS. Flights from $1,073
EIS
Terrance B. Lettsome Intl.
Flights from $1,073
Select flight to Benjamin Rivera Noriega CPX. Flights from $642
CPX
Benjamin Rivera Noriega
Flights from $642

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT) cost?
Get a cheap one-way flight from $150 or cheap return flight from $303 from Ronald Reagan Washington National Airport (DCA) 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 Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT)?
January is the least expensive month to fly from DCA to STT. Timing your trip outside of the busy season is often the key to finding better fares.
Which airlines fly direct from Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT)?
There are no direct routes from Washington, DC (DCA-Ronald Reagan Washington National) to Cyril E. King Airport (STT). However, you can find other airports that have nonstop flights. Board your plane at Washington Dulles Intl. Airport (IAD) and fly straight to St. Thomas without a layover.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT)?
To find the cheapest airline flying from DCA to STT, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT)?
You'll have to hop on a flight with a layover if you're traveling from Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from DCA to STT?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be 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 Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT)?
To avoid possible delays on the Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT) route, fly before 3 PM. Flights after this time 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 Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT) last-minute?
Waiting until just before your departure to book your flight from DCA to STT generally means paying more. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans to maximize your chances of getting a bargain.
Is it cheaper to book a DCA to STT flight and hotel package?
Compared with arranging flights and hotels separately, booking a DCA to STT flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place takes the hassle out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Cyril E. King Airport (STT)?
In most instances, you can cancel or reschedule your DCA to STT flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you'd like more information, go to our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$303
Distance
1591 mi

Book with confidence

Washington to St. Thomas Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $150 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 Washington 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 Washington 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.

 

Washington to St. Thomas Flights

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