Saint Thomas Island

$196+ Cheap flights from Dulles Intl (IAD) 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STT
Mar 30 — Apr 61
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King are usually found in January or August, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$425
(Mytrip)

One-way from

$196
(Mytrip)

Popular in

March

Cheapest in

January

Average price

$946

Good round-trip deal

$570 or less

Good one-way deal

$313 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Saint Thomas Island Cyril E King flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Saint Thomas Island Cyril E King flights.
From Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King
One-way flight from Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King
Highest demand for flights based on searches. 17% potential increase in price ($152 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King.

Find flight deals from Dulles Intl to Saint Thomas Island

Cheapest flights from Dulles Intl to Saint Thomas Island
Explore the most affordable flight options available from Dulles Intl to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This Mytrip deal was found by Cheapflights users on 3/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/178:25 amIAD - STT
3 stops28h 01mMultiple Airlines
Tue 5/2010:52 amSTT - IAD
3 stops24h 28mMultiple Airlines
Deal found 3/23$425
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Tue 5/68:57 amIAD - STT
Nonstop4h 04mUnited Airlines
Tue 5/134:45 pmSTT - IAD
Nonstop4h 12mUnited Airlines
Deal found 3/24$460
This American Airlines deal was found by Cheapflights users on 3/24. 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 5/45:00 amIAD - STT
1 stop5h 40mAmerican Airlines
Mon 5/1211:40 amSTT - IAD
1 stop12h 22mAmerican Airlines
Deal found 3/24$467
This Delta deal was found by Cheapflights users on 3/24. 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.
Wed 7/167:00 amIAD - STT
1 stop8h 01mDelta
Tue 7/293:00 pmSTT - IAD
1 stop9h 10mDelta
Deal found 3/24$509

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl 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 March 25, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island that are best for you.

Fly from

Dulles Intl

Fly to

Saint Thomas Island

Route

Depart

Return

Price

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sat 5/17

8:25 am-12:26 pm

3 stops28h 01m

Saint Thomas Island Cyril E King

Tue 5/20

10:52 am-11:20 am

3 stops24h 28m

$425

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Tue 5/6

8:57 am-1:01 pm

Nonstop4h 04m

Saint Thomas Island Cyril E King

Tue 5/13

4:45 pm-8:57 pm

Nonstop4h 12m

$460

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sun 5/4

5:00 am-10:40 am

1 stop5h 40m

Saint Thomas Island Cyril E King

Mon 5/12

11:40 am-12:02 am

1 stop12h 22m

$467

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Wed 7/16

6:00 am-3:01 pm

1 stop9h 01m

Saint Thomas Island Cyril E King

Fri 7/25

1:21 pm-12:10 am

1 stop10h 49m

$509

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Mon 4/14

8:25 am-10:00 am

3 stops25h 35m

$196

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Wed 4/30

5:00 am-10:40 am

1 stop5h 40m

$273

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Mon 3/31

8:25 am-3:43 pm

1 stop7h 18m

$303

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Mon 4/14

7:35 am-3:05 pm

1 stop7h 30m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Dulles Intl 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 Dulles Intl to Saint Thomas Island in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-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. Dulles Intl Airport-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 Dulles Intl to Saint Thomas Island

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Saint Thomas Island. Price data was last updated on March 21, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island, you should look to book at least 37 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. Dulles Intl Airport to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island (average of $433). Flying from Washington, D.C. Dulles Intl Airport to Saint Thomas Island in June is currently the most expensive (average of $646). 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 IAD to STT?

Find hourly flight availability from Dulles Intl 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 March 25, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 8% on flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island by exploring options for tickets at noon.

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

Explore weekly flight availability from Dulles Intl 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 March 25, 2025.

The most flights from IAD 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).

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 March 25, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Saint Thomas Island, such as Delta, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Saint Thomas Island, you will be flying into Cyril E King. Saint Thomas Island Cyril E King (STT) is just 2.8 mi from the center of the city. Cyril E King is the only Saint Thomas Island airport and it handles 1 inbound flight from Washington, D.C. Dulles Intl per day. 4 airlines have flights to Saint Thomas Island Cyril E King from Washington, D.C. Dulles Intl on a regular basis.

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

    Flying on United Airlines is currently your cheapest option to Saint Thomas Island, with prices starting at $460. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $467 and $549, respectively. Users have found that United Airlines is 34% cheaper than the other options available to this destination.

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

    $273 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $303 and $318, respectively.

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

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island? While on average our users pay $537, our data indicates the cheapest price to be $268. The most popular route (Washington, D.C. Dulles Intl - Saint Thomas Island Cyril E King), is priced around $460.

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Saint Thomas Island?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island (average of $433). Flying from Washington, D.C. Dulles Intl Airport to Saint Thomas Island in June is currently the most expensive (average of $646). 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 Washington, D.C. Dulles Intl Airport?

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St. John

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Alternative routes for Dulles Intl to Saint Thomas Island

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

Top 4 airlines flying from Dulles Intl to Saint Thomas Island

Discover the top 4 airlines that operate flights from Dulles Intl 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$282Average$356FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$457Average$696FlexibilityNo cancel feeOn-time69%
DeltaCheapest$467Average$692FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$537Average$702FlexibilityNo cancel feeOn-time71%
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