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Cheap flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island departing on 6/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island

Cheap round-trip flights

Frontier Logo
12:31 pm - 4:29 pmIAD-STT
27h 58m1 stop
Frontier Logo
5:14 pm - 11:56 amSTT-IAD
18h 42m1 stop
$172Frontier
Find Deal
Thu, Jul 10 - Mon, Jul 14
Frontier Logo
12:24 pm - 4:29 pmIAD-STT
28h 05m1 stop
Frontier Logo
5:14 pm - 11:56 amSTT-IAD
18h 42m1 stop
$202Frontier
Find Deal
Thu, Aug 7 - Mon, Aug 11
 Logo
1:22 pm - 12:52 pmIAD-STT
47h 30m3 stops
 Logo
9:40 am - 3:23 pmSTT-IAD
29h 43m2 stops
Mon, Aug 18 - Sun, Aug 24
 Logo
11:58 am - 12:30 pmIAD-STT
24h 32m2 stops
 Logo
10:43 am - 9:23 amSTT-IAD
22h 40m2 stops
Sun, Jul 20 - Thu, Jul 24
United Airlines Logo
8:15 am - 12:17 pmIAD-STT
4h 02mnonstop
United Airlines Logo
4:45 pm - 8:57 pmSTT-IAD
4h 12mnonstop
$460United Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 16
United Airlines Logo
6:10 am - 3:43 pmIAD-STT
9h 33m1 stop
United Airlines Logo
4:45 pm - 8:57 pmSTT-IAD
4h 12mnonstop
$465United Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 16
American Airlines Logo
8:11 pm - 11:45 amIAD-STT
14h 34m1 stop
American Airlines Logo
4:38 pm - 11:57 pmSTT-IAD
8h 19m1 stop
$469American Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11
Delta Logo
6:00 am - 1:39 pmIAD-STT
7h 39m1 stop
Delta Logo
2:49 pm - 11:17 pmSTT-IAD
8h 28m1 stop
$494Delta
Find Deal
Fri, Sep 12 - Wed, Sep 17
Delta Logo
9:00 am - 3:10 pmIAD-STT
6h 10m1 stop
Delta Logo
3:23 pm - 11:21 pmSTT-IAD
7h 58m1 stop
$519Delta
Find Deal
Sat, Aug 23 - Sat, Aug 30
American Airlines Logo
8:14 pm - 11:40 amIAD-STT
14h 26m1 stop
American Airlines Logo
4:30 pm - 8:39 amSTT-IAD
17h 09m1 stop
$549American Airlines
Find Deal
Mon, Dec 8 - Fri, Dec 12

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

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Saint Thomas Island flight tickets
Frontier
Jul 10
IAD12:31 pmWashington, D.C. Dulles Intl
27h 58m
1 stop
STT4:29 pmSaint Thomas Island Cyril E King
Jul 14
STT5:14 pmSaint Thomas Island Cyril E King
18h 42m
1 stop
IAD11:56 amWashington, D.C. Dulles Intl
Frontier
Aug 7
IAD12:24 pmWashington, D.C. Dulles Intl
28h 05m
1 stop
STT4:29 pmSaint Thomas Island Cyril E King
Aug 11
STT5:14 pmSaint Thomas Island Cyril E King
18h 42m
1 stop
IAD11:56 amWashington, D.C. Dulles Intl
Frontier
Jul 24
IAD12:24 pmWashington, D.C. Dulles Intl
28h 05m
1 stop
STT4:29 pmSaint Thomas Island Cyril E King
Jul 28
STT5:14 pmSaint Thomas Island Cyril E King
18h 42m
1 stop
IAD11:56 amWashington, D.C. Dulles Intl

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Saint Thomas Island flight tickets
Delta
Sep 12
IAD6:00 amWashington, D.C. Dulles Intl
7h 39m
1 stop
STT1:39 pmSaint Thomas Island Cyril E King
Sep 17
STT2:49 pmSaint Thomas Island Cyril E King
8h 28m
1 stop
IAD11:17 pmWashington, D.C. Dulles Intl
Delta
Aug 23
IAD9:00 amWashington, D.C. Dulles Intl
6h 10m
1 stop
STT3:10 pmSaint Thomas Island Cyril E King
Aug 30
STT3:23 pmSaint Thomas Island Cyril E King
7h 58m
1 stop
IAD11:21 pmWashington, D.C. Dulles Intl
Delta
Aug 14
IAD6:00 amWashington, D.C. Dulles Intl
8h 10m
1 stop
STT2:10 pmSaint Thomas Island Cyril E King
Aug 21
STT3:23 pmSaint Thomas Island Cyril E King
8h 58m
1 stop
IAD12:21 amWashington, D.C. Dulles Intl

See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Saint Thomas Island?

The month of October is another great option to travel to Saint Thomas Island, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $582.

What is the cheapest day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from Washington, D.C. Dulles Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $628. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Saint Thomas Island for around $845.

What is the cheapest time of day to depart on your flight to Saint Thomas Island?

The cheapest time of day to fly to Saint Thomas Island is in the afternoon when flights can be purchased for as low as $348. Flights to Saint Thomas Island are more costly in the morning, with an average ticket price of $710. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King flight route?

Fly from Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King for the best Washington, D.C. Dulles Intl - Saint Thomas Island Cyril E King flight prices

How far in advance should I book a flight to Saint Thomas Island?

You are more likely to see cheaper flights to Saint Thomas Island from Washington, D.C. Dulles Intl Airport when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $684 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from Washington, D.C. Dulles Intl Airport for as low as $560 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Saint Thomas Island flights?

You could potentially save up to 13% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Saint Thomas Island flight.

How have Washington, D.C. Dulles Intl Airport to Saint Thomas Island flight prices changed over time?

As of June 2025, prices for Washington, D.C. Dulles Intl Airport to Saint Thomas Island flights are approximately 8% cheaper when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Saint Thomas Island (IAD to STT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island

Best Price Found

$90

Fastest flight time

3h 57m

Direct flights

Every day

Airports in Saint Thomas Island

1 airport
The best one-way flight to Saint Thomas Island from Washington, D.C. Dulles Intl Airport in the past 72 hours is $90. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Saint Thomas Island found on momondo in the last 72 hours is $172.
The fastest flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island takes 3h 57m
Direct flights go from Washington, D.C. Dulles Intl Airport to Saint Thomas Island every day.
There is 1 airport near Saint Thomas Island: Saint Thomas Island Cyril E King (STT)

  • How far is Washington, D.C. Dulles Intl to Saint Thomas Island Cyril E King by plane?

    The distance between Washington, D.C. Dulles Intl and Saint Thomas Island Cyril E King is about 1608.5 mi. In terms of flight time, this usually takes a little over 3h 57m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island Cyril E King Airport are updated daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Saint Thomas Island Cyril E King Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The required travel and health documents for your Saint Thomas Island Cyril E King Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Saint Thomas Island?

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Saint Thomas Island?


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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $458Free CancellationRating
7.4
8,790 reviews
Search United Airlines flights
DeltaPriceFrom $467Free CancellationRating
8.0
7,946 reviews
Search Delta flights
American AirlinesPriceFrom $537Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Saint Thomas Island

    United Airlines flight deals from Washington, D.C. Dulles Intl Airport to Saint Thomas Island start from $458 round-trip. Over the 6 United Airlines flights for this route in a normal week, average airfare is usually $696 round-trip - but some users have found much cheaper deals with momondo.


Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Saint Thomas Island?

Finding the right flight to Saint Thomas Island from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Thomas Island quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Saint Thomas Island with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Saint Thomas Island on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Saint Thomas Island?

Once all potential Washington, D.C. to Saint Thomas Island flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Saint Thomas Island right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Saint Thomas Island, momondo offers a useful price alert feature which will track prices for flights to Saint Thomas Island from Washington, D.C. and alert you when they change.


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1 adult
Tue 6/17
Tue 6/24

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