WAS - STT

$144 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Saint Thomas Island departing on 7/17. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$300
Typical prices: $591-$401
American Airlines
Sun 8/23Sun 8/30
BWI - STT • 1 stop
Cheapest non-stop
$368
Typical prices: $685-$531
United Airlines
Sat 7/4Wed 7/22
IAD - STT • Non-stop
Top airlines
Cheapest • from $300 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 4h 10m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 65% average savings
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $205 (round-trip)
Shortest trip • 6h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 40% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Saint Thomas Island!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Washington, D.C. to Saint Thomas Island (WAS-STT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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 Washington, D.C. to Saint Thomas Island

Sun, Aug 23 - Sun, Aug 30
American Airlines Logo
6:00 am - 12:53 pm
BWI
-
STT
6h 53m
1 stop
American Airlines Logo
4:42 pm - 9:49 am
STT
-
BWI
17h 07m
1 stop
$300American Airlines
Sat, Aug 29 - Sat, Sep 5
Southwest Logo
7:20 am - 1:20 pm
BWI
-
STT
6h 00m
1 stop
Southwest Logo
2:05 pm - 8:25 pm
STT
-
BWI
6h 20m
1 stop
$321Southwest
Fri, Aug 28 - Tue, Sep 1
Delta Logo
6:00 am - 1:34 pm
BWI
-
STT
7h 34m
1 stop
Delta Logo
2:49 pm - 9:27 pm
STT
-
BWI
6h 38m
1 stop
$342Delta
Fri, Aug 28 - Tue, Sep 1
Delta Logo
6:59 am - 1:34 pm
DCA
-
STT
6h 35m
1 stop
Delta Logo
2:49 pm - 10:44 pm
STT
-
DCA
7h 55m
1 stop
$342Delta
Sun, Aug 30 - Sat, Sep 5
Delta Logo
6:00 am - 1:34 pm
IAD
-
STT
7h 34m
1 stop
Delta Logo
4:13 pm - 12:34 am
STT
-
IAD
8h 21m
1 stop
$342Delta
Sat, Sep 26 - Sat, Oct 3
United Airlines Logo
6:00 am - 3:43 pm
DCA
-
STT
9h 43m
1 stop
United Airlines Logo
12:09 pm - 10:14 pm
STT
-
DCA
10h 05m
1 stop
$352United Airlines
Fri, Aug 28 - Wed, Sep 2
Delta Logo
6:00 am - 1:34 pm
BWI
-
STT
7h 34m
1 stop
Delta Logo
2:49 pm - 9:27 pm
STT
-
BWI
6h 38m
1 stop
$358Delta
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
6:35 pm - 3:52 pm
BWI
-
STT
21h 17m
1 stop
American Airlines Logo
4:42 pm - 9:49 am
STT
-
BWI
17h 07m
1 stop
$361American Airlines
Fri, Sep 4 - Mon, Sep 7
American Airlines Logo
6:35 pm - 11:18 am
BWI
-
STT
16h 43m
1 stop
American Airlines Logo
1:49 pm - 11:45 pm
STT
-
BWI
9h 56m
1 stop
$362American Airlines
Sat, Jul 4 - Wed, Jul 22
United Airlines Logo
12:53 pm - 5:00 pm
IAD
-
STT
4h 07mnonstop
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
$368United Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Saint Thomas Island flights

Get data-powered insights and trends into flights from Washington, D.C. 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. 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. to Saint Thomas Island departing in August.

What is the cheapest Washington, D.C. to Saint Thomas Island flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. to Saint Thomas Island costs $321 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Saint Thomas Island (STT). Over the past month, this route was, on average, 65% cheaper than other Washington, D.C.-Saint Thomas Island routes. It is also the most popular route.

What’s the cheapest day of the week to fly from Washington, D.C. to Saint Thomas Island?

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

For Washington, D.C. to Saint Thomas Island, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Saint Thomas Island back to Washington, D.C., the best deals are generally found on Tuesday, with Sunday being the most expensive.

What is the cheapest month to fly from Washington, D.C. 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. 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. to Saint Thomas Island is March, where tickets cost $98 (return) on average. On the other hand, the most expensive months are September and October, where the average cost of round-trip tickets is $273 and $199 respectively.

Can I save money by flying with a layover from Washington, D.C. to Saint Thomas Island?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $624, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Washington, D.C. 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. 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. to Saint Thomas Island, you should book around 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Expert advice

Expert advice for your flight from Washington, D.C. to Saint Thomas Island

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on STT

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonSeptember
Cheapest flight$144
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 39% lower on average.
Flight from Washington Dulles Airport to Saint Thomas Island

When to book flights from Washington, D.C. to Saint Thomas Island

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Saint Thomas Island

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. to Saint Thomas Island was $144 for a one-way ticket and $300 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Saint Thomas Island?

    Yes

  • Which airports will I be using when flying from Washington, D.C. to Saint Thomas Island?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Saint Thomas Island Cyril E King.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Saint Thomas Island?

    JetBlue, Delta, and American Airlines offer inflight Wi-Fi service on the Washington, D.C. to Saint Thomas Island flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to Saint Thomas Island?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Washington, D.C. to Saint Thomas Island flight route.

  • Which airline alliances offer flights from Washington, D.C. to Saint Thomas Island?

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

  • On which days can I fly direct from Washington, D.C. to Saint Thomas Island?

    There are nonstop flights from Washington, D.C. to Saint Thomas Island on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Saint Thomas Island are Delta and Southwest. With an average price for the route of $457 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $503 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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 Washington, D.C. to Saint Thomas Island.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. 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 Washington, D.C. 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 Washington, D.C. 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 Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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 Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. to Saint Thomas Island

  • Looking for a cheap flight? 25% of our users found flights on this route for $289 or less one-way and $1,063 or less round-trip.

Prefer to fly direct from Washington, D.C. to Saint Thomas Island?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. to Saint Thomas Island Cyril E King.
Find which airlines fly direct from Washington, D.C. to Saint Thomas Island Cyril E King Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. to Saint Thomas Island Cyril E King

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Saint Thomas Island Cyril E King to Washington, D.C.

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Washington, D.C. 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 Washington, D.C. 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
SouthwestOverall score based on 4236 reviews
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

I like everything. Blythe at DCA is the absolute best!

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

The gate attendant in Boston had a high raspy voice and spoke much too fast to be understood. Not pleasant.

Everything you need to know for your flight from Washington, D.C. to Saint Thomas Island

Information on your arrival and departure airports