Saint Thomas Island

$139+ Cheap flights from Washington, D.C. (WAS) to Saint Thomas Island (STT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — STT
Jun 16 — Jun 231
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Find cheap flights from Washington, D.C. to Saint Thomas Island with Cheapflights

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Cheapflights Tip: The best prices from Washington, D.C. to Saint Thomas Island Cyril E King are usually found in February or May, booked 62 days in advance, depart on a Tuesday or Sunday and return on a Friday

Cheap flight deals from Washington, D.C. to Saint Thomas Island

Cheapest flights from Washington, D.C. to Saint Thomas Island
Explore the most affordable flight options available from Washington, D.C. to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.

This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
IAD
-
STT
1 stop7h 44m
Delta
Thu 9/172:54 pm
STT
-
IAD
1 stop9h 16m
Delta
Deal found 5/13$332
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:00 am
DCA
-
STT
1 stop7h 50m
Southwest
Mon 8/242:35 pm
STT
-
DCA
1 stop9h 20m
Southwest
Deal found 5/13$348
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 am
IAD
-
STT
1 stop6h 52m
Delta
Wed 9/162:54 pm
STT
-
IAD
1 stop9h 16m
Delta
Deal found 5/13$348
This American Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:01 am
BWI
-
STT
1 stop6h 02m
American Airlines
Mon 8/31:49 pm
STT
-
BWI
1 stop28h 37m
American Airlines
Deal found 5/14$356
This United Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:15 am
IAD
-
STT
Nonstop4h 05m
United Airlines
Thu 8/64:45 pm
STT
-
IAD
Nonstop4h 13m
United Airlines
Deal found 5/15$358
This United Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:30 am
IAD
-
STT
1 stop9h 13m
United Airlines
Thu 8/64:45 pm
STT
-
IAD
Nonstop4h 13m
United Airlines
Deal found 5/15$363
This United Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:51 am
IAD
-
STT
Nonstop4h 07m
United Airlines
Sun 7/122:10 pm
STT
-
IAD
1 stop9h 09m
United Airlines
Deal found 5/15$367
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/125:00 am
DCA
-
STT
1 stop6h 03m
American Airlines
Mon 7/134:46 pm
STT
-
DCA
2 stops17h 15m
American Airlines
Deal found 5/16$368
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 am
DCA
-
STT
1 stop7h 25m
Southwest
Sun 8/302:10 pm
STT
-
DCA
1 stop8h 40m
Southwest
Deal found 5/12$369
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
DCA
-
STT
1 stop8h 19m
Delta
Tue 6/164:31 pm
STT
-
DCA
1 stop6h 50m
Delta
Deal found 5/13$379
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:00 am
IAD
-
STT
1 stop7h 44m
Delta
Tue 9/222:54 pm
STT
-
IAD
1 stop9h 16m
Delta
Deal found 5/14$379
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am
BWI
-
STT
1 stop7h 34m
Delta
Mon 8/313:02 pm
STT
-
BWI
1 stop9h 14m
Delta
Deal found 5/12$380

Find flight deals from Washington, D.C. to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$332
(Delta)

One-way from

$139
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$364

Good round-trip deal

$240 or less

Good one-way deal

$196 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Saint Thomas Island Cyril E King flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Saint Thomas Island Cyril E King flights.
From Washington, D.C. (WAS) to Saint Thomas Island Cyril E King
One-way flight from Washington, D.C. (WAS) to Saint Thomas Island Cyril E King
Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Saint Thomas Island Cyril E King.
Price to beat on a one-way flight from Washington, D.C. (WAS) to Saint Thomas Island Cyril E King.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Saint Thomas Island that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 17, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Fri 7/31

6:00 am-3:43 pm

1 stop9h 43m

Saint Thomas Island Cyril E King

Fri 8/7

1:22 pm-11:59 pm

1 stop10h 37m

$503

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Mon 6/1

6:00 am-1:51 pm

1 stop7h 51m

Saint Thomas Island Cyril E King

Thu 6/4

4:38 pm-11:24 pm

1 stop6h 46m

$543

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sat 5/30

6:10 am-2:54 pm

1 stop8h 44m

Saint Thomas Island Cyril E King

Fri 6/5

4:45 pm-8:58 pm

Nonstop4h 13m

$559

BaltimoreSaint Thomas Island

BWI - STT

BWISTT

Baltimore/Washington

Tue 6/9

5:40 am-3:21 pm

1 stop9h 41m

Saint Thomas Island Cyril E King

Tue 6/16

1:20 pm-9:25 pm

1 stop8h 05m

$571

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Thu 6/25

5:00 am-4:02 pm

1 stop11h 02m

Saint Thomas Island Cyril E King

Mon 6/29

4:49 pm-9:00 am

1 stop16h 11m

$578

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sat 6/6

12:53 pm-5:00 pm

Nonstop4h 07m

Saint Thomas Island Cyril E King

Tue 6/9

1:22 pm-12:31 am

1 stop11h 09m

$582

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sat 6/6

12:53 pm-5:00 pm

Nonstop4h 07m

Saint Thomas Island Cyril E King

Fri 6/12

4:45 pm-8:58 pm

Nonstop4h 13m

$586

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Sat 7/4

6:30 am-2:54 pm

1 stop8h 24m

Saint Thomas Island Cyril E King

Sun 7/12

2:10 pm-9:53 pm

1 stop7h 43m

$596

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Tue 7/21

8:15 am-12:20 pm

Nonstop4h 05m

Saint Thomas Island Cyril E King

Sun 7/26

2:10 pm-11:19 pm

1 stop9h 09m

$598

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sun 7/19

6:00 am-3:20 pm

1 stop9h 20m

Saint Thomas Island Cyril E King

Thu 7/23

1:21 pm-9:03 pm

1 stop7h 42m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Saint Thomas Island

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Saint Thomas Island in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Saint Thomas Island flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Saint Thomas Island flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Saint Thomas Island flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Saint Thomas Island

How far ahead should I book a flight from Washington, D.C. to Saint Thomas Island?

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Saint Thomas Island, you should look to book at least 60 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. to Saint Thomas Island?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Saint Thomas Island (average of $98). Flying from Washington, D.C. to Saint Thomas Island in September is currently the most expensive (average of $273). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to STT?

Find hourly flight availability from Washington, D.C. to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 17, 2026.

When flying from Washington, D.C. to Saint Thomas Island, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. to Saint Thomas Island

Explore weekly flight availability from Washington, D.C. to Saint Thomas Island. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 17, 2026.

The most flights from WAS to STT are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Washington, D.C. to Saint Thomas Island?

The best insider tips for Washington, D.C. to Saint Thomas Island flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Saint Thomas Island trip
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on STT

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Reviews of airlines servicing Saint Thomas Island

Get insights into the airlines that provide service to Saint Thomas Island. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Thomas Island. Reviews last updated May 17, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to Saint Thomas Island, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Saint Thomas Island from Washington, D.C.?

    Most people fly into Saint Thomas Island Cyril E King (STT) if they book a flight to Saint Thomas Island from Washington, D.C.. On average, Cyril E King has 1 inbound flight from Washington, D.C. per day from 6 airlines. Saint Thomas Island Cyril E King is conveniently located just 2.8 mi from Saint Thomas Island’s city center.

  • How long is the flight from Washington, D.C. to Saint Thomas Island?

    There are many flights that can get you from Washington, D.C. to Saint Thomas Island in 7h 51m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. The distance between Washington, D.C. and Saint Thomas Island is about 1591 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. to Saint Thomas Island round-trip?

    Cheapflights users have booked flights from Washington, D.C. to Saint Thomas Island round-trip from $153. Other airlines that can offer you cheap pricing are American Airlines, from $189, and United Airlines, from $190. You may be able to fly from Washington, D.C. to Saint Thomas Island for 68% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Saint Thomas Island one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $98. Users have also found prices from $103 and $130 on American Airlines and JetBlue, respectively.

  • What are the most popular routes from Washington, D.C. to Saint Thomas Island?

  • What are the cheapest flights from Washington, D.C. to Saint Thomas Island?

    Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Washington, D.C. Dulles Intl - Saint Thomas Island Cyril E King) can be booked for $358 on average, our data indicates $745 when flying from Washington, D.C. to Saint Thomas Island.

  • Can I find deals for flights from Washington, D.C. to Saint Thomas Island that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Saint Thomas Island?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Saint Thomas Island.

  • Can I find deals for business class flights from Washington, D.C. to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Saint Thomas Island?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Saint Thomas Island (average of $98). Flying from Washington, D.C. to Saint Thomas Island in September is currently the most expensive (average of $273). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

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Alternative routes for Washington, D.C. to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Washington, D.C. to Saint Thomas Island

Discover the top 6 airlines that operate flights from Washington, D.C. to Saint Thomas Island. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$108Average$511FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$187Average$407FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$189Average$507FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$190Average$446FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$191Average$597FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$205Average$372FlexibilityNo cancel feeOn-time65%

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