STT - IAD

$152 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 9/5. 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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$474
American Airlines
Thu 9/3Mon 9/7
STT - IAD • 1 stop
Cheapest non-stop
$479
United Airlines
Fri 7/31Mon 8/3
STT - IAD • Non-stop
Top airlines
Cheapest • from $474 (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 13m
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

Thu, Sep 3 - Mon, Sep 7
American Airlines Logo
3:43 pm - 10:55 pm
STT
-
IAD
7h 12m
1 stop
American Airlines Logo
6:10 am - 2:59 pm
IAD
-
STT
8h 49m
1 stop
$474American Airlines
Fri, Jul 31 - Mon, Aug 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
$479United Airlines
Thu, Sep 17 - Mon, Sep 21
Delta Logo
2:54 pm - 12:32 am
STT
-
IAD
9h 38m
1 stop
Delta Logo
6:00 am - 1:44 pm
IAD
-
STT
7h 44m
1 stop
$523Delta
Fri, Nov 6 - Thu, Nov 12
United Airlines Logo
1:02 pm - 4:25 pm
STT
-
IAD
4h 23mnonstop
United Airlines Logo
8:15 am - 1:12 pm
IAD
-
STT
3h 57mnonstop
$529United Airlines
Thu, Jul 16 - Mon, Jul 27
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
6:30 am - 3:43 pm
IAD
-
STT
9h 13m
1 stop
$537United Airlines
Sat, Jun 20 - Wed, Jun 24
United Airlines Logo
12:09 pm - 4:22 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$565United Airlines
Fri, Nov 6 - Thu, Nov 12
United Airlines Logo
2:15 pm - 11:00 pm
STT
-
IAD
9h 45m
1 stop
United Airlines Logo
8:15 am - 1:12 pm
IAD
-
STT
3h 57mnonstop
$571United Airlines
Thu, Jul 16 - Mon, Jul 27
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
$576United Airlines
Fri, Aug 21 - Tue, Aug 25
Delta Logo
2:49 pm - 12:34 am
STT
-
IAD
9h 45m
1 stop
Delta Logo
6:00 am - 1:34 pm
IAD
-
STT
7h 34m
1 stop
$578Delta
Fri, Jul 31 - Mon, Aug 3
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
6:30 am - 3:43 pm
IAD
-
STT
9h 13m
1 stop
$588United 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 Sunday. 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $495 on average.

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$152
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 5 days, the lowest price for a flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport was $152 for a one-way ticket and $474 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?

    Delta, and JetBlue 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 $344 or less one-way and $543 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 9804 reviews
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

2.0 MediocreLinda, Jun 2026
LIS - IAD
Read more United Airlines reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

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

Information on your arrival and departure airports