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Saint Thomas Island

$123+ Cheap flights from Reagan-National (DCA) 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — STT
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
1 adult, Economy
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Cheap flight deals from Reagan-National to Saint Thomas Island

Cheapest flights from Reagan-National to Saint Thomas Island
Explore the most affordable flight options available from Reagan-National to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.

This Delta deal was found by Cheapflights users on 6/6. 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.
Sat 8/226:00 am
DCA
-
STT
1 stop9h 02m
Delta
Tue 9/12:49 pm
STT
-
DCA
1 stop7h 55m
Delta
Deal found 6/6$384
This Delta deal was found by Cheapflights users on 6/8. 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 9/86:00 am
DCA
-
STT
1 stop7h 52m
Delta
Fri 9/112:54 pm
STT
-
DCA
1 stop6h 27m
Delta
Deal found 6/8$389
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Sat 8/226:00 am
DCA
-
STT
1 stop6h 53m
American Airlines
Wed 8/2611:49 am
STT
-
DCA
1 stop11h 44m
American Airlines
Deal found 6/5$390
This Delta deal was found by Cheapflights users on 6/6. 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 8/256:00 am
DCA
-
STT
1 stop7h 34m
Delta
Thu 8/272:49 pm
STT
-
DCA
1 stop8h 59m
Delta
Deal found 6/6$405
This Delta deal was found by Cheapflights users on 6/9. 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 8/266:59 am
DCA
-
STT
1 stop6h 35m
Delta
Mon 8/312:49 pm
STT
-
DCA
1 stop8h 59m
Delta
Deal found 6/9$410
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:20 am
DCA
-
STT
1 stop7h 12m
JetBlue
Mon 8/314:27 pm
STT
-
DCA
1 stop5h 32m
JetBlue
Deal found 6/7$413
This Delta deal was found by Cheapflights users on 6/6. 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 6/98:00 am
DCA
-
STT
1 stop6h 19m
Delta
Thu 6/114:31 pm
STT
-
DCA
1 stop6h 50m
Delta
Deal found 6/6$416
This Travelocity deal was found by Cheapflights users on 6/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:09 am
DCA
-
STT
1 stop7h 29m
JetBlue
Tue 7/74:13 pm
STT
-
DCA
1 stop5h 20m
JetBlue
Deal found 6/7$418
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 11/105:59 am
DCA
-
STT
1 stop8h 16m
American Airlines
Tue 11/1712:57 pm
STT
-
DCA
1 stop7h 02m
American Airlines
Deal found 6/10$424
This Southwest deal was found by Cheapflights users on 6/8. 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.
Fri 9/116:00 am
DCA
-
STT
1 stop7h 50m
Southwest
Mon 9/142:35 pm
STT
-
DCA
1 stop9h 20m
Southwest
Deal found 6/8$426
This American Airlines deal was found by Cheapflights users on 6/9. 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 8/2610:19 pm
DCA
-
STT
2 stops14h 34m
American Airlines
Mon 8/314:42 pm
STT
-
DCA
1 stop8h 15m
American Airlines
Deal found 6/9$429
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:00 am
DCA
-
STT
1 stop7h 12m
JetBlue
Tue 7/212:53 pm
STT
-
DCA
2 stops19h 17m
JetBlue
Deal found 6/9$431

Find flight deals from Reagan-National to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$342
(Delta)

One-way from

$123
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$614
Provider with most accurate pricing for Washington, D.C. Reagan-National-Saint Thomas Island Cyril E King flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Saint Thomas Island Cyril E King flights.
Search Deals
From Washington, D.C. Reagan-National to Saint Thomas Island Cyril E King
Search Deals
One-way flight from Washington, D.C. Reagan-National to Saint Thomas Island Cyril E King
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 June 10, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport 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

Sat 8/22

6:00 am-3:02 pm

1 stop9h 02m

Saint Thomas Island Cyril E King

Tue 9/1

2:49 pm-10:44 pm

1 stop7h 55m

$384

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Sat 8/22

6:00 am-1:20 pm

1 stop7h 20m

Saint Thomas Island Cyril E King

Sat 8/29

2:05 pm-9:55 pm

1 stop7h 50m

$426

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Mon 8/24

6:00 am-1:34 pm

1 stop7h 34m

Saint Thomas Island Cyril E King

Tue 9/1

2:49 pm-9:45 pm

1 stop6h 56m

$442

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Mon 8/24

6:00 am-1:34 pm

1 stop7h 34m

Saint Thomas Island Cyril E King

Thu 8/27

2:49 pm-11:48 pm

1 stop8h 59m

$442

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Fri 9/11

9:15 pm-1:20 pm

2 stops16h 05m

Saint Thomas Island Cyril E King

Mon 9/14

2:35 pm-8:55 am

2 stops18h 20m

$449

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Fri 9/18

6:00 am-1:50 pm

1 stop7h 50m

Saint Thomas Island Cyril E King

Mon 9/21

2:35 pm-8:55 am

2 stops18h 20m

$472

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Mon 6/29

6:00 am-3:43 pm

1 stop9h 43m

Saint Thomas Island Cyril E King

Wed 7/15

1:22 pm-11:59 pm

1 stop10h 37m

$489
Quickest round-trip

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Sat 8/22

8:20 am-3:17 pm

1 stop6h 57m

Saint Thomas Island Cyril E King

Wed 8/26

4:27 pm-9:59 pm

1 stop5h 32m

$490

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Tue 9/1

8:20 am-3:32 pm

1 stop7h 12m

Saint Thomas Island Cyril E King

Thu 9/3

4:27 pm-9:59 pm

1 stop5h 32m

$496

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Thu 8/20

6:00 am-1:50 pm

1 stop7h 50m

Saint Thomas Island Cyril E King

Mon 8/24

2:35 pm-8:55 am

2 stops18h 20m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Reagan-National 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 Reagan-National to Saint Thomas Island in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy1 starTrust 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. Reagan-National 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. Reagan-National 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. Reagan-National 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. Reagan-National 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. Reagan-National 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 Reagan-National to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Reagan-National 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. Reagan-National Airport to Saint Thomas Island

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

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island (average of $247). Flying from Washington, D.C. Reagan-National Airport to Saint Thomas Island in June is currently the most expensive (average of $614). 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.

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

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 June 10, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Washington, D.C. Reagan-National Airport to Saint Thomas Island have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,397 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,397 reviews
Delta
7.9
Good
8,397 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,808 reviews
Delta
7.9
Good
8,397 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,636 reviews
Delta
7.9
Good
8,397 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
JetBlue
7.1
Good
2,980 reviews
Delta
7.9
Good
8,397 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.8

Entertainment

7.8

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 Reagan-National 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. Reagan-National?

    Saint Thomas Island Cyril E King (STT), located 2.8 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Reagan-National to Saint Thomas Island. 4 airlines have flights to Cyril E King from Washington, D.C. Reagan-National on a regular basis. Booking flights from Washington, D.C. Reagan-National to Saint Thomas Island Cyril E King should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day.

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

    For as low as $426, Delta can have you in Saint Thomas Island from Washington, D.C. Reagan-National Airport in 7h 20m. There are 1591 mi between Washington, D.C. Reagan-National Airport and Saint Thomas Island. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $153, Delta will fly you from Washington, D.C. Reagan-National Airport to Saint Thomas Island and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $190 and $199, respectively. Delta is currently priced 65% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $98. However, be on the lookout for offers from American Airlines and JetBlue, as they are both options that can get you from Washington, D.C. Reagan-National Airport to Saint Thomas Island for a low price.

  • Can I find deals for flights from Reagan-National to Saint Thomas Island that include hotel bookings?

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

  • How can I find direct flights from Reagan-National 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 Reagan-National to Saint Thomas Island.

  • Can I find deals for business class flights from Reagan-National to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Saint Thomas Island?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island (average of $247). Flying from Washington, D.C. Reagan-National Airport to Saint Thomas Island in June is currently the most expensive (average of $614). 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 Reagan-National to Saint Thomas Island

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

Top 4 airlines flying from Reagan-National to Saint Thomas Island

Discover the top 4 airlines that operate flights from Reagan-National 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 June 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$153Average$384FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$190Average$265FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$199Average$500FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$209Average$448FlexibilityNo cancel feeOn-time62%

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