DCA - STT

$150 Find Cheap Flights from Reagan Washington National Airport to Saint Thomas Island

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Saint Thomas Island departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Saint Thomas Island

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Saint Thomas Island, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Saint Thomas Island, as well as popular online travel agencies
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Cheap Flights from Reagan-National to Saint Thomas Island (DCA-STT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Saint Thomas Island that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Saint Thomas Island

Wed, Oct 29 - Wed, Nov 26
American Airlines Logo
6:09 am - 12:00 pmDCA-STT
5h 51m1 stop
American Airlines Logo
4:18 pm - 12:24 amSTT-DCA
9h 06m1 stop
$344American Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
American Airlines Logo
7:59 pm - 5:27 pmDCA-STT
20h 28m1 stop
American Airlines Logo
2:49 pm - 9:30 pmSTT-DCA
7h 41m1 stop
$364American Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
JetBlue Logo
8:00 am - 2:20 pmDCA-STT
5h 20m1 stop
JetBlue Logo
3:17 pm - 9:48 pmSTT-DCA
7h 31m1 stop
$368JetBlue
Find Deal
Mon, Jan 26 - Sat, Jan 31
JetBlue Logo
8:00 am - 4:20 pmDCA-STT
7h 20m1 stop
JetBlue Logo
5:15 pm - 9:10 amSTT-DCA
16h 55m2 stops
$369JetBlue
Find Deal
Tue, Mar 17 - Thu, Mar 26
JetBlue Logo
8:00 am - 3:15 pmDCA-STT
7h 15m1 stop
JetBlue Logo
4:10 pm - 10:12 amSTT-DCA
18h 02m2 stops
$375JetBlue
Find Deal
Tue, Jan 13 - Wed, Jan 21
JetBlue Logo
8:00 am - 4:20 pmDCA-STT
7h 20m1 stop
JetBlue Logo
2:00 pm - 9:51 pmSTT-DCA
8h 51m2 stops
$387JetBlue
Find Deal
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
6:30 am - 4:18 pmDCA-STT
8h 48m1 stop
United Airlines Logo
3:05 pm - 11:59 pmSTT-DCA
9h 54m1 stop
$393United Airlines
Find Deal
Thu, Feb 26 - Thu, Mar 5
Delta Logo
6:05 am - 1:45 pmDCA-STT
6h 40m1 stop
Delta Logo
4:00 pm - 10:16 pmSTT-DCA
7h 16m1 stop
$409Delta
Find Deal
Thu, Mar 5 - Tue, Mar 10
United Airlines Logo
7:30 am - 4:18 pmDCA-STT
7h 48m1 stop
United Airlines Logo
2:35 pm - 11:52 pmSTT-DCA
9h 17m1 stop
$433United Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 20
Delta Logo
6:05 am - 1:45 pmDCA-STT
6h 40m1 stop
Delta Logo
3:00 pm - 9:13 pmSTT-DCA
7h 13m1 stop
$434Delta
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $344 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
6 weeks
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 24% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$344
Typical prices: $457-$624
American Airlines
Wed 10/29Wed 11/26
DCA - STT • 1 stop
Cheapest one-way
$150
Typical prices: $295-$353
American Airlines
Sun 11/16
DCA - STT • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Saint Thomas Island!
Booking Insights

KAYAK's insights & trends for Reagan-National to Saint Thomas Island flights

Get data-powered insights and trends into flights from Reagan-National to Saint Thomas Island to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island departing in October.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to Saint Thomas Island?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Saint Thomas Island on a Wednesday and more expensive on a Sunday. On your return trip to Reagan Washington National Airport, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island is September, where tickets cost $472 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $810 and $722 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Saint Thomas Island, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island, you should book around 6 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$150
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Reagan Washington National Airport to Saint Thomas Island

When to book flights from Reagan-National to Saint Thomas Island

Are your dates flexible? Find out the best times to travel from Reagan-National to Saint Thomas Island based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to Saint Thomas Island flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Saint Thomas Island was $150 for a one-way ticket and $344 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Saint Thomas Island?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Reagan Washington National Airport and on arrival in Saint Thomas Island.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Saint Thomas Island?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Reagan Washington National Airport to Saint Thomas Island?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Reagan Washington National Airport and Saint Thomas Island, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Saint Thomas Island, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Saint Thomas Island are Delta and United Airlines. With an average price for the route of $644 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $570 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Saint Thomas Island?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Saint Thomas Island.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Saint Thomas Island?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint Thomas Island from Reagan Washington National Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Saint Thomas Island?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint Thomas Island with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and STT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Saint Thomas Island?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint Thomas Island from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Reagan-National to Saint Thomas Island

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Saint Thomas Island. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to Saint Thomas Island? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7984 reviews
7.9Comfort
7.3Food
8.2Boarding
8.5Crew
7.9Entertainment
Airline reviews

Old plane and old configuration/seats but still comfortable for a morning flight

10.0 ExcellentBraulio, Oct 2025ATL - SDQ
Read more Delta reviews

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

There was a fowl odour coming from the lavatory the entire flight

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

They have the most inexperienced / rude flight staff I’ve encountered

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

Everything you need to know for your flight from Reagan-National to Saint Thomas Island

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