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Cheap flights from Cyril E. King to Washington Dulles

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      Travellers and cabin class, 1 Adult, Economy

      Compare Cyril E. King to Washington Dulles flight deals

      Find the cheapest month or even day of the year to fly to Washington Dulles

      Book the best Washington Dulles fare with no extra fees

      Flight deals from Cyril E. King to Washington Dulles

      Looking for a cheap last-minute deal or the best return flight from Cyril E. King Airport to Washington Dulles Airport? If you want to travel next month, return fares start from $963. Find the lowest prices on one-way and return tickets right here.
      Washington D.C..$177 per passenger.Departing Wed, 23 Dec.One-way flight with Delta.Outbound indirect flight with Delta, departs from Cyril E. King on Wed, 23 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $177, select.
      Washington D.C..$177 per passenger.Departing Sat, 5 Sep.One-way flight with Delta.Outbound indirect flight with Delta, departs from Cyril E. King on Sat, 5 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $177, select.
      Washington D.C..$197 per passenger.Departing Sat, 5 Sep.One-way flight with United.Outbound direct flight with United departs from Cyril E. King on Sat, 5 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $197, select.
      Washington D.C..$249 per passenger.Departing Fri, 25 Dec.One-way flight with United.Outbound direct flight with United departs from Cyril E. King on Fri, 25 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $249, select.
      Washington D.C..$286 per passenger.Departing Fri, 20 Nov.One-way flight with United.Outbound direct flight with United departs from Cyril E. King on Fri, 20 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $286, select.
      Washington D.C..$287 per passenger.Departing Tue, 27 Oct.One-way flight with United.Outbound direct flight with United departs from Cyril E. King on Tue, 27 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $287, select.
      Washington D.C..$524 per passenger.Departing Sun, 17 Jan.One-way flight with United.Outbound indirect flight with United, departs from Cyril E. King on Sun, 17 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $524, select.
      Washington D.C..$565 per passenger.Departing Fri, 17 Jul.One-way flight with United.Outbound direct flight with United departs from Cyril E. King on Fri, 17 Jul, arriving in Washington Dulles.Price includes taxes and charges.From $565, select.
      Washington D.C..$651 per passenger.Departing Sun, 17 Jan.One-way flight with United.Outbound direct flight with United departs from Cyril E. King on Sun, 17 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $651, select.
      Washington D.C..$722 per passenger.Departing Mon, 3 Aug.One-way flight with United.Outbound direct flight with United departs from Cyril E. King on Mon, 3 Aug, arriving in Washington Dulles.Price includes taxes and charges.From $722, select.

      Find the cheapest month to fly from Cyril E. King to Washington Dulles

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cyril E. King to Washington Dulles flights are currently cheapest in September.
      Jul
      from $565
      Aug
      from $722
      Sep
      from $177
      Oct
      from $287
      Nov
      from $286
      Dec
      from $177
      Jan
      from $524
      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Direct flights from Cyril E. King to Washington Dulles

      Cyril E. King to Washington Dulles: Alternative routes

      Compare routes from Cyril E. King to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

      Washington Ronald Reagan

      5km from central Washington D.C.
      ClosestCheapest
      from $164
      Search flights

      Washington Dulles

      37km from central Washington D.C.
      from $177
      Search flights

      Baltimore Washington International

      44km from central Washington D.C.
      from $202
      Search flights

      Saint Thomas to Washington D.C.: Flight information

      The things to know before you go.
      Cheapest flight found$177
      Cheapest month to flyDecember
      Average flight time4 hrs, 19 mins
      Most popular airlineUnited
      Average flights per week9

      Finding cheap flights from Cyril E. King to Washington Dulles: Frequently asked questions

      The best price we found for a return flight from Cyril E. King to Washington Dulles is $402. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      4 hours and 19 minutes is the average flight time from Cyril E. King to Washington Dulles.
      United flies direct from Cyril E. King to Washington Dulles.
      As of July 2026, there are 9 flights per week flying from Cyril E. King to Washington Dulles.
      The cheapest month to fly from Cyril E. King to Washington Dulles is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cyril E. King Airport to Washington Dulles Airport on Friday, 4 September 2026.
      Yes – the average flight time is 4 hours and 19 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Delta and United offer the cheapest flight tickets to Washington Dulles.

      Travelling from Cyril E. King Airport (STT) to Washington Dulles Airport (IAD): what you need to know

      • Take a direct flight from Cyril E. King Airport to Washington Dulles Airport and you'll be travelling for an average of 4 hours 15 minutes.

      • Washington DC's timezone is UTC-5, which makes Washington DC one hour behind Saint Thomas.

      • Choose from six weekly Cyril E. King Airport to Washington Dulles Airport flights. The 12:05 departure with United Airlines is the earliest flight available. United Airlines operates the latest service of the day at 16:45.

      • Give yourself plenty of time to make your STT to IAD flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

      • During popular months such as April, you'll want to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead of international flights when you travel during a peak period in general.

      • United is your gateway to exploring Washington DC (and perhaps some other great parts of the United States!). Browse the direct flights from Cyril E. King Airport to Washington Dulles Airport offered by this popular carrier.

      • United is the airline most travellers choose to fly with on this route.

      • United is the most punctual carrier that offers STT to IAD flights. A reliable 88.46% of its services on this route arrive as planned.

      • If you'd like to add a stop to your trip, just deselect 'Direct flights only' when searching for your ticket from Cyril E. King Airport to Washington Dulles Airport. Here are the top stopovers between STT and IAD:

        • Atlanta Hartsfield-Jackson Airport

        • Orlando International Airport

        • San Juan Luis Munoz Marin Airport

      How to find the cheapest flights from Cyril E. King Airport (STT) to Washington Dulles Airport (IAD)

      • The lowest price we've seen for a one-way Cyril E. King Airport to Washington Dulles Airport flight is $177. A round-trip ticket right now is $402. Depending on the availability and when you book, these fares could change.

      • To score cheap tickets from STT to IAD, book as early as you can. Airlines typically offer lower fares when flights are first released.

      • The 'Whole month' search tool shows you the cheapest flights from Cyril E. King Airport to Washington Dulles Airport across each month. It's an easy way to snap up a bargain if your dates are flexible.

      • You won't have to check every day to see if fares have dropped when you set up a Price Alert. We'll notify you as soon as the price changes on cheap flights from STT to IAD.

      • Choose your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Cyril E. King Airport to Washington Dulles Airport.

      Handy information about Cyril E. King Airport (STT)

      • Cyril E. King Airport gets high marks for on-time performance. 82% of flights that take off from STT arrive at their destination on time.

      • Cyril E. King Airport is around 5 kilometres from central Saint Thomas. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

      • You can expect a trip time of around 20 minutes when using public transport.

      • Get your break off to a stress-free start by staying near STT. Whether you're boarding an early flight from Cyril E. King Airport to Washington Dulles Airport or just don't like being rushed, these hotels are ideal:

      Arriving at Washington Dulles Airport (IAD)

      When to fly to Washington Dulles Airport (IAD)

      • The quietest month for a flight from Cyril E. King Airport to Washington Dulles Airport is February, while July is the busiest. Choose the ideal time to go to Washington DC based on whether you prefer a more fast-paced or easygoing experience.

      • Book your flight from Cyril E. King Airport to Washington Dulles Airport for July if you want to go to Washington DC during its warmest month. You can expect temperatures of between 19ºC (66ºF) and 33ºC (91ºF).

      • For cooler conditions, look for a cheap ticket from STT to IAD in January. Temperatures average between -6ºC (21ºF) and 10ºC (50ºF) then.

      Explore more of the United States

      • You've visited Washington DC, now it's time to explore other corners of the United States. Travel around 322 kilometres north-east to New York to check off its top sights. From Central Park to Statue of Liberty and Metropolitan Museum of Art, your itinerary will be busy.

      • If you're ready to explore another corner of the United States, consider Philadelphia, roughly 193 kilometres north-east of Washington DC. Independence Hall, Liberty Bell and Philadelphia Museum of Art are key reasons to visit.

      Plan the rest of your trip from Saint Thomas to Washington D.C.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.