STT - IAD

$127 Find Cheap Flights from Saint Thomas Island to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Saint Thomas Island to Dulles Intl departing on 4/30. 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 Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Saint Thomas Island to Washington, D.C., 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 Saint Thomas Island to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$309
United Airlines
Fri 5/1Sun 5/3
STT - IAD • Non-stop
Cheapest one-way
$127
Typical prices: $427-$559
Delta
Thu 4/30
STT - IAD • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Arrive at STT 3 hours early for customs and security.
Use the Silver Line Metro from IAD to reach downtown.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $329 (round-trip)
Best reviews • 7.4 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 23m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
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 Dulles Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Saint Thomas Island to Dulles Intl (STT-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Saint Thomas Island to Dulles Intl 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 Saint Thomas Island to Dulles Intl

Fri, May 1 - Sun, May 3
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$309United Airlines
Fri, May 1 - Sun, May 3
Multiple Airlines Logo
10:49 am - 7:27 am
STT
-
IAD
20h 38m
1 stop
Multiple Airlines Logo
10:02 am - 9:54 am
IAD
-
STT
23h 52m
1 stop
$312Multiple Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
6:00 am - 1:08 pm
IAD
-
STT
7h 08m
1 stop
$314United Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$329United Airlines
Mon, Apr 20 - Sun, Apr 26
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$331United Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
6:00 am - 3:43 pm
IAD
-
STT
9h 43m
1 stop
$334United Airlines
Mon, Apr 20 - Sun, Apr 26
United Airlines Logo
2:10 pm - 12:32 am
STT
-
IAD
10h 22m
1 stop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$335United Airlines
Wed, Apr 22 - Wed, May 27
United Airlines Logo
1:22 pm - 9:04 pm
STT
-
IAD
7h 42m
1 stop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$336United Airlines
Mon, Apr 20 - Sun, Apr 26
United Airlines Logo
2:10 pm - 12:32 am
STT
-
IAD
10h 22m
1 stop
United Airlines Logo
6:15 am - 3:31 pm
IAD
-
STT
9h 16m
1 stop
$340United Airlines
Fri, May 1 - Sun, May 3
Multiple Airlines Logo
10:49 am - 12:36 am
STT
-
IAD
13h 47m
2 stops
Multiple Airlines Logo
10:02 am - 9:54 am
IAD
-
STT
23h 52m
1 stop
$344Multiple Airlines
Booking Insights

KAYAK's insights & trends for Saint Thomas Island to Dulles Intl flights

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

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

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

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

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

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 $405, prices are generally cheapest when you fly direct.

Expert advice

Expert advice for your flight from Saint Thomas Island to Dulles Intl

 
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

Cheapest flight$127
Flight from Saint Thomas Island to Washington Dulles Airport

When to book flights from Saint Thomas Island to Dulles Intl

Are your dates flexible? Find out the best times to travel from Saint Thomas Island to Dulles Intl 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 Saint Thomas Island to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport was $127 for a one-way ticket and $329 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Saint Thomas Island to Washington Dulles Airport?

    When flying out of Saint Thomas Island you will be using Saint Thomas Island Cyril E King. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Saint Thomas Island to Washington Dulles Airport?

    JetBlue, and Delta offer inflight Wi-Fi service on the Saint Thomas Island to Washington Dulles Airport flight route.

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

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

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

    Star Alliance is the only airline alliance operating flights between Saint Thomas Island and Washington Dulles Airport.

  • On which days can I fly direct from Saint Thomas Island to Washington Dulles Airport?

    There are nonstop flights from Saint Thomas Island to Washington Dulles Airport on a daily basis.

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

    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 Saint Thomas Island to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Saint Thomas Island 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 Saint Thomas Island to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Saint Thomas Island with another airline. Booking your flights between Saint Thomas Island and IAD 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 Saint Thomas Island to Washington Dulles Airport?

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $282 or less one-way and $495 or less round-trip.

Prefer to fly direct from Saint Thomas Island to Washington Dulles Airport?

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

Direct departures

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

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

Washington, D.C. Dulles Intl 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

Reviews of the top airline flying from Saint Thomas Island to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Saint Thomas Island to Washington, D.C.. 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 Saint Thomas Island to Dulles Intl? 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.
7.4
United AirlinesOverall score based on 9427 reviews
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
Airline reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

6.0 GoodOlga, Mar 2026
FRA - IAD
Read more United Airlines reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

Everything you need to know for your flight from Saint Thomas Island to Dulles Intl

Information on your arrival and departure airports