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Dulles Intl

$144+ Cheap flights from Saint Thomas Island (STT) to Dulles Intl (IAD)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
STT — IAD
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Find flight deals from Saint Thomas Island to Dulles Intl

Cheapest flights from Saint Thomas Island to Dulles Intl
Explore the most affordable flight options available from Saint Thomas Island to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This American Airlines deal was found by Cheapflights users on 11/18. 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.
Mon 11/244:35 pmSTT - IAD
1 stop17h 06mAmerican Airlines
Sat 11/296:44 amIAD - STT
1 stop8h 03mAmerican Airlines
Deal found 11/18$439
This American Airlines deal was found by Cheapflights users on 11/18. 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.
Mon 11/244:35 pmSTT - IAD
1 stop17h 06mAmerican Airlines
Fri 11/288:09 pmIAD - STT
1 stop14h 34mAmerican Airlines
Deal found 11/18$463
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:00 pmSTT - IAD
2 stops18h 45mMultiple Airlines
Sat 11/297:56 pmIAD - STT
1 stop15h 26mMultiple Airlines
Deal found 11/17$464
This American Airlines deal was found by Cheapflights users on 11/16. 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.
Wed 12/105:29 pmSTT - IAD
1 stop16h 15mAmerican Airlines
Wed 12/177:55 amIAD - STT
1 stop7h 53mAmerican Airlines
Deal found 11/16$465
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:00 pmSTT - IAD
2 stops18h 45mMultiple Airlines
Fri 11/288:06 pmIAD - STT
1 stop14h 30mMultiple Airlines
Deal found 11/17$476
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:00 pmSTT - IAD
2 stops18h 45mMultiple Airlines
Sun 11/308:06 pmIAD - STT
1 stop16h 51mMultiple Airlines
Deal found 11/17$487
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:25 pmSTT - IAD
1 stop17h 20mMultiple Airlines
Sat 11/297:56 pmIAD - STT
1 stop15h 26mMultiple Airlines
Deal found 11/17$519
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:25 pmSTT - IAD
1 stop17h 20mMultiple Airlines
Fri 11/288:06 pmIAD - STT
1 stop14h 30mMultiple Airlines
Deal found 11/17$531
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:25 pmSTT - IAD
1 stop17h 20mMultiple Airlines
Sun 11/309:45 pmIAD - STT
2 stops39h 45mMultiple Airlines
Deal found 11/17$540

Cheap flight deals from Saint Thomas Island to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Saint Thomas Island (STT) to Dulles Intl (IAD). 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 November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$425
(American Airlines)

One-way from

$144
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$437

Good round-trip deal

$490 or less

Good one-way deal

$212 or less
Provider with most accurate pricing for Saint Thomas Island Cyril E King-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Saint Thomas Island Cyril E King-Washington, D.C. Dulles Intl flights.
Search Deals
From Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($157 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Saint Thomas Island to Dulles Intl 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 November 18, 2025.
Use the filters below to find and compare flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Saint Thomas Island

Fly to

Dulles Intl

Route

Depart

Return

Price

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

3:46 pm-11:12 pm

1 stop8h 26m

Washington, D.C. Dulles Intl

Thu 2/5

7:01 am-3:06 pm

1 stop7h 05m

$425

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 12/10

5:29 pm-8:44 am

1 stop16h 15m

Washington, D.C. Dulles Intl

Wed 12/17

7:55 am-4:48 pm

1 stop7h 53m

$465

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

3:05 pm-7:30 am

2 stops17h 25m

Washington, D.C. Dulles Intl

Wed 2/4

8:59 am-1:56 pm

Nonstop3h 57m

$477

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

1:02 pm-4:25 pm

Nonstop4h 23m

Washington, D.C. Dulles Intl

Thu 2/5

8:59 am-1:56 pm

Nonstop3h 57m

$522

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 12/10

10:45 am-9:43 am

1 stop23h 58m

Washington, D.C. Dulles Intl

Wed 12/17

9:00 am-11:31 am

2 stops25h 31m

$540

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

1:50 pm-11:12 pm

1 stop10h 22m

$144

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

1:02 pm-4:25 pm

Nonstop4h 23m

$149

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 3/25

2:35 pm-11:51 pm

1 stop9h 16m

$154

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Tue 12/2

3:25 pm-2:29 pm

2 stops24h 04m

$201

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/8

5:25 pm-11:18 pm

1 stop6h 53m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 14 results
1
2

Compare providers for flights from Saint Thomas Island to Dulles Intl

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 Saint Thomas Island to Dulles Intl in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Saint Thomas Island-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Saint Thomas Island-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Saint Thomas Island-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Saint Thomas Island-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Saint Thomas Island-Washington, D.C. Dulles Intl Airport 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 Saint Thomas Island to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Saint Thomas Island 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 Saint Thomas Island to Washington, D.C. Dulles Intl Airport

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

Find hourly flight availability from Saint Thomas Island to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport as you normally would.

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Saint Thomas Island to Washington, D.C. Dulles Intl Airport trip
Airports
STT

Expect quick screening times at STT with easy check-in and departure, making it convenient for travelers heading to Washington Dulles.

Read more about STTby Mark Chesnut
IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cheap way to get to the city from the airport.

Read more about IADby Ramsey Qubein
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on STT

Mark Chesnut

Mark Chesnut

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.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

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.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated November 18, 2025.
Read reviews from past customers who have flown United Airlines from Saint Thomas Island to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,019 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,019 reviews
United Airlines
7.4
Good
9,019 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Saint Thomas Island to Dulles Intl. 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 from for flights from Saint Thomas Island to Washington, D.C. Dulles Intl?

    Most people fly from Saint Thomas Island Cyril E King (STT) if they book a flight from Saint Thomas Island to Washington, D.C. Dulles Intl. On average, Cyril E King has 1 outbound flight to Washington, D.C. Dulles Intl per day from 1 airline. 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 Saint Thomas Island to Washington, D.C. Dulles Intl Airport?

    A quick flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport can take about 8h 26m. American Airlines provides one of the quickest options available for as low as $425. There are 1608 mi between Saint Thomas Island and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Saint Thomas Island to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $298.

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

    While on average a flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport is generally $3,611, our data shows the cheapest flight currently is $202. When looking at the most popular route, (Saint Thomas Island Cyril E King - Washington, D.C. Dulles Intl), you can expect to pay $294 for that flight.

  • Can I find deals for flights from Saint Thomas Island to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from Saint Thomas Island to Dulles Intl?

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

  • Can I find deals for business class flights from Saint Thomas Island to Dulles Intl?

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

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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Alternative routes for Saint Thomas Island to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Saint Thomas Island to Reagan-National flights
Saint Thomas Island to Baltimore flights
Christiansted to Reagan-National flights
Christiansted to Baltimore flights
Christiansted to Dulles Intl flights

Top airline flying from Saint Thomas Island to Dulles Intl

Discover the top airline that operate flights from Saint Thomas Island to Dulles Intl. 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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$680FlexibilityNo cancel feeOn-time69%

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