Cheap flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island from $103

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island departing on 3/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 am - 3:18 pm
DCA
-
STT
8h 48m
1 stop
United Airlines Logo
2:10 pm - 10:43 pm
STT
-
DCA
8h 33m
1 stop
$210United Airlines
Tue, Mar 24 - Tue, Mar 31
Delta Logo
6:00 am - 12:12 pm
DCA
-
STT
6h 12m
1 stop
Delta Logo
3:05 pm - 10:34 pm
STT
-
DCA
7h 29m
1 stop
$220Delta
Sun, Apr 26 - Wed, Apr 29
United Airlines Logo
6:30 am - 3:18 pm
DCA
-
STT
8h 48m
1 stop
United Airlines Logo
2:35 pm - 11:50 pm
STT
-
DCA
9h 15m
1 stop
$231United Airlines
Wed, Mar 11 - Wed, Mar 18
Delta Logo
6:00 am - 2:45 pm
DCA
-
STT
8h 45m
1 stop
Delta Logo
12:49 pm - 7:40 pm
STT
-
DCA
6h 51m
1 stop
$236Delta
Wed, Mar 11 - Tue, Mar 17
Delta Logo
6:00 am - 2:48 pm
DCA
-
STT
8h 48m
1 stop
Delta Logo
4:27 pm - 11:24 pm
STT
-
DCA
6h 57m
1 stop
$247Delta
Sun, May 3 - Sat, May 9
United Airlines Logo
7:30 am - 3:18 pm
DCA
-
STT
7h 48m
1 stop
United Airlines Logo
2:05 pm - 11:59 pm
STT
-
DCA
9h 54m
1 stop
$252United Airlines
Mon, Mar 9 - Thu, Mar 12
Delta Logo
6:00 am - 1:13 pm
DCA
-
STT
7h 13m
1 stop
Delta Logo
4:27 pm - 11:35 pm
STT
-
DCA
7h 08m
1 stop
$262Delta
Fri, Apr 24 - Fri, May 8
United Airlines Logo
6:30 am - 3:18 pm
DCA
-
STT
8h 48m
1 stop
United Airlines Logo
2:05 pm - 11:59 pm
STT
-
DCA
9h 54m
1 stop
$263United Airlines
Sun, Mar 8 - Thu, Mar 12
United Airlines Logo
7:30 am - 3:31 pm
DCA
-
STT
8h 01m
1 stop
United Airlines Logo
2:10 pm - 10:43 pm
STT
-
DCA
8h 33m
1 stop
$265United Airlines
Fri, Apr 10 - Tue, Apr 14
United Airlines Logo
6:00 am - 3:43 pm
DCA
-
STT
9h 43m
1 stop
United Airlines Logo
2:10 pm - 9:31 pm
STT
-
DCA
7h 21m
1 stop
$268United Airlines
Fri, May 1 - Fri, May 8

United Airlines flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Saint Thomas Island flight tickets
United Airlines
Mar 24
DCA6:30 amWashington, D.C. Reagan-National
8h 48m
1 stop
STT3:18 pmSaint Thomas Island Cyril E King
Mar 31
STT2:10 pmSaint Thomas Island Cyril E King
8h 33m
1 stop
DCA10:43 pmWashington, D.C. Reagan-National
$210
United Airlines
Mar 11
DCA6:30 amWashington, D.C. Reagan-National
8h 48m
1 stop
STT3:18 pmSaint Thomas Island Cyril E King
Mar 18
STT2:35 pmSaint Thomas Island Cyril E King
9h 15m
1 stop
DCA11:50 pmWashington, D.C. Reagan-National
$231
United Airlines
Mar 9
DCA7:30 amWashington, D.C. Reagan-National
7h 48m
1 stop
STT3:18 pmSaint Thomas Island Cyril E King
Mar 12
STT2:05 pmSaint Thomas Island Cyril E King
9h 54m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$252

JetBlue flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island

Our best JetBlue deals on Washington, D.C. Reagan-National Airport to Saint Thomas Island flight tickets
JetBlue
May 4
DCA8:00 amWashington, D.C. Reagan-National
5h 48m
1 stop
STT1:48 pmSaint Thomas Island Cyril E King
May 13
STT2:45 pmSaint Thomas Island Cyril E King
18h 17m
2 stops
DCA9:02 amWashington, D.C. Reagan-National
$349
JetBlue
May 4
DCA7:00 pmWashington, D.C. Reagan-National
18h 48m
2 stops
STT1:48 pmSaint Thomas Island Cyril E King
May 13
STT2:45 pmSaint Thomas Island Cyril E King
18h 17m
2 stops
DCA9:02 amWashington, D.C. Reagan-National
$350
JetBlue
Apr 25
DCA6:10 pmWashington, D.C. Reagan-National
18h 16m
2 stops
STT12:26 pmSaint Thomas Island Cyril E King
Apr 28
STT1:21 pmSaint Thomas Island Cyril E King
22h 59m
2 stops
DCA12:20 pmWashington, D.C. Reagan-National
$352

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated February 26, 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

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Tue 3/24

6:30 am-3:18 pm

1 stop8h 48m

Saint Thomas Island Cyril E King

Tue 3/31

2:10 pm-10:43 pm

1 stop8h 33m

$210

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Sun 4/26

6:00 am-12:12 pm

1 stop6h 12m

Saint Thomas Island Cyril E King

Wed 4/29

3:05 pm-10:34 pm

1 stop7h 29m

$220

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Wed 3/11

6:30 am-3:18 pm

1 stop8h 48m

Saint Thomas Island Cyril E King

Wed 3/18

2:35 pm-11:50 pm

1 stop9h 15m

$231

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-2:45 pm

1 stop8h 45m

Saint Thomas Island Cyril E King

Tue 3/17

12:49 pm-7:40 pm

1 stop6h 51m

$236

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Sun 5/3

6:00 am-2:48 pm

1 stop8h 48m

Saint Thomas Island Cyril E King

Sat 5/9

4:27 pm-11:24 pm

1 stop6h 57m

$247

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Mon 3/9

7:30 am-3:18 pm

1 stop7h 48m

Saint Thomas Island Cyril E King

Thu 3/12

2:05 pm-11:59 pm

1 stop9h 54m

$252

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Fri 4/24

6:00 am-1:13 pm

1 stop7h 13m

Saint Thomas Island Cyril E King

Fri 5/8

4:27 pm-11:35 pm

1 stop7h 08m

$262

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Sun 3/8

6:30 am-3:18 pm

1 stop8h 48m

Saint Thomas Island Cyril E King

Thu 3/12

2:05 pm-11:59 pm

1 stop9h 54m

$263

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Fri 4/10

7:30 am-3:31 pm

1 stop8h 01m

Saint Thomas Island Cyril E King

Tue 4/14

2:10 pm-10:43 pm

1 stop8h 33m

$265

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Fri 5/1

6:00 am-3:43 pm

1 stop9h 43m

Saint Thomas Island Cyril E King

Fri 5/8

2:10 pm-9:31 pm

1 stop7h 21m

$268

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Saint Thomas Island?

What is the cheapest month to fly to Saint Thomas Island?

The month of February is another great option to travel to Saint Thomas Island, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $279.

What is the cheapest day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from Washington, D.C. Reagan-National Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $524. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to Saint Thomas Island for around $749.

How far in advance should I book a flight to Saint Thomas Island?

You are more likely to see cheaper flights to Saint Thomas Island from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $498 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from Washington, D.C. Reagan-National Airport for as low as $229 on momondo.

How have Washington, D.C. Reagan-National Airport to Saint Thomas Island flight prices changed over time?

As of February 2026, prices for Washington, D.C. Reagan-National Airport to Saint Thomas Island flights are approximately 58% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Saint Thomas Island (DCA to STT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island

Fastest flight time

6h 12m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island takes 6h 12m
There are no direct flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Saint Thomas Island.
  • How far is Washington, D.C. Reagan-National to Saint Thomas Island Cyril E King by plane?

    The straight-line distance from Washington, D.C. Reagan-National to Saint Thomas Island Cyril E King is 1591.4 mi. Flights usually cover this in 6h 12m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island Cyril E King Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Saint Thomas Island Cyril E King Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents required for your trip to Saint Thomas Island Cyril E King Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Thomas Island Cyril E King Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Saint Thomas Island?

Best airlines flying from Washington, D.C. Reagan-National Airport to Saint Thomas Island

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $153Free CancellationRating
7.9
8,237 reviews
Search Delta flights
United AirlinesPriceFrom $190Free CancellationRating
7.4
9,348 reviews
Search United Airlines flights
American AirlinesPriceFrom $199Free CancellationRating
7.2
11,352 reviews
Search American Airlines flights
JetBluePriceFrom $209Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights

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

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Saint Thomas Island?

It is quick and easy to find Washington, D.C. to Saint Thomas Island flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Saint Thomas Island that suits you.

Can I find flights from Washington, D.C. to Saint Thomas Island with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Saint Thomas Island from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Saint Thomas Island?

Once you have performed a search for Washington, D.C. to Saint Thomas Island flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Saint Thomas Island right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Saint Thomas Island from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Sat 3/28
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