Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island from $140

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 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:15 am - 1:12 pmIAD-STT
3h 57mnonstop
United Airlines Logo
3:05 pm - 11:59 pmSTT-IAD
9h 54m1 stop
$389United Airlines
Find Deal
Tue, Nov 18 - Sat, Nov 22
United Airlines Logo
8:15 am - 1:12 pmIAD-STT
3h 57mnonstop
United Airlines Logo
3:05 pm - 12:15 amSTT-IAD
10h 10m1 stop
$394United Airlines
Find Deal
Tue, Dec 16 - Tue, Dec 23
American Airlines Logo
7:01 am - 3:06 pmIAD-STT
7h 05m1 stop
American Airlines Logo
4:12 pm - 11:12 pmSTT-IAD
8h 00m1 stop
$401American Airlines
Find Deal
Fri, Jan 9 - Tue, Jan 13
United Airlines Logo
8:59 am - 1:56 pmIAD-STT
3h 57mnonstop
United Airlines Logo
1:02 pm - 4:25 pmSTT-IAD
4h 23mnonstop
$402United Airlines
Find Deal
Mon, Jan 5 - Wed, Jan 14
Multiple Airlines Logo
10:23 pm - 3:11 pmIAD-STT
15h 48m1 stop
Multiple Airlines Logo
4:06 pm - 2:42 pmSTT-IAD
23h 36m1 stop
$404Multiple Airlines
Find Deal
Sun, Jan 18 - Sun, Jan 25
Delta Logo
9:00 am - 4:10 pmIAD-STT
6h 10m1 stop
Delta Logo
4:15 pm - 11:37 pmSTT-IAD
8h 22m1 stop
$405Delta
Find Deal
Mon, Jan 5 - Wed, Jan 14
Multiple Airlines Logo
8:36 pm - 1:00 pmIAD-STT
15h 24m2 stops
Multiple Airlines Logo
3:25 pm - 7:50 amSTT-IAD
17h 25m1 stop
$406Multiple Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 20
United Airlines Logo
6:30 am - 4:18 pmIAD-STT
8h 48m1 stop
United Airlines Logo
1:02 pm - 4:25 pmSTT-IAD
4h 23mnonstop
$407United Airlines
Find Deal
Mon, Jan 5 - Wed, Jan 14
Delta Logo
7:15 am - 3:04 pmIAD-STT
6h 49m1 stop
Delta Logo
4:15 pm - 12:24 amSTT-IAD
9h 09m1 stop
$422Delta
Find Deal
Tue, Jan 20 - Tue, Jan 27
American Airlines Logo
8:09 pm - 11:43 amIAD-STT
14h 34m1 stop
American Airlines Logo
4:27 pm - 11:59 pmSTT-IAD
8h 32m1 stop
$442American Airlines
Find Deal
Sat, Nov 15 - Sun, Nov 23

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Saint Thomas Island flight tickets
American Airlines
Jan 9
IAD7:01 amWashington, D.C. Dulles Intl
7h 05m
1 stop
STT3:06 pmSaint Thomas Island Cyril E King
Jan 13
STT4:12 pmSaint Thomas Island Cyril E King
8h 00m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
$401
Find similar
American Airlines
Nov 15
IAD8:09 pmWashington, D.C. Dulles Intl
14h 34m
1 stop
STT11:43 amSaint Thomas Island Cyril E King
Nov 23
STT4:27 pmSaint Thomas Island Cyril E King
8h 32m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
$442
Find similar
American Airlines
Nov 2
IAD8:09 pmWashington, D.C. Dulles Intl
15h 47m
1 stop
STT12:56 pmSaint Thomas Island Cyril E King
Nov 6
STT12:28 pmSaint Thomas Island Cyril E King
7h 53m
1 stop
IAD7:21 pmWashington, D.C. Dulles Intl
$463
Find similar

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
Jan 5
IAD9:00 amWashington, D.C. Dulles Intl
6h 10m
1 stop
STT4:10 pmSaint Thomas Island Cyril E King
Jan 14
STT4:15 pmSaint Thomas Island Cyril E King
8h 22m
1 stop
IAD11:37 pmWashington, D.C. Dulles Intl
$405
Find similar
Delta
Jan 20
IAD7:15 amWashington, D.C. Dulles Intl
6h 49m
1 stop
STT3:04 pmSaint Thomas Island Cyril E King
Jan 27
STT4:15 pmSaint Thomas Island Cyril E King
9h 09m
1 stop
IAD12:24 amWashington, D.C. Dulles Intl
$422
Find similar
Delta
Dec 31
IAD6:00 amWashington, D.C. Dulles Intl
9h 25m
1 stop
STT4:25 pmSaint Thomas Island Cyril E King
Jan 8
STT4:15 pmSaint Thomas Island Cyril E King
8h 22m
1 stop
IAD11:37 pmWashington, D.C. Dulles Intl
$459
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Tue 11/18

8:15 am-1:12 pm

Nonstop3h 57m

Saint Thomas Island Cyril E King

Sat 11/22

3:05 pm-11:59 pm

1 stop9h 54m

$389

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Tue 12/16

8:15 am-1:12 pm

Nonstop3h 57m

Saint Thomas Island Cyril E King

Tue 12/23

3:05 pm-12:15 am

1 stop10h 10m

$394

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Fri 1/9

7:01 am-3:06 pm

1 stop7h 05m

Saint Thomas Island Cyril E King

Tue 1/13

4:12 pm-11:12 pm

1 stop8h 00m

$401

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Mon 1/5

8:59 am-1:56 pm

Nonstop3h 57m

Saint Thomas Island Cyril E King

Wed 1/14

1:02 pm-4:25 pm

Nonstop4h 23m

$402

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sun 1/18

10:23 pm-3:11 pm

1 stop15h 48m

Saint Thomas Island Cyril E King

Sun 1/25

4:06 pm-2:42 pm

1 stop23h 36m

$404

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Mon 1/5

9:00 am-4:10 pm

1 stop6h 10m

Saint Thomas Island Cyril E King

Wed 1/14

4:15 pm-11:37 pm

1 stop8h 22m

$405

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sat 11/8

8:36 pm-1:00 pm

2 stops15h 24m

Saint Thomas Island Cyril E King

Thu 11/20

3:25 pm-7:50 am

1 stop17h 25m

$406

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Mon 1/5

6:30 am-4:18 pm

1 stop8h 48m

Saint Thomas Island Cyril E King

Wed 1/14

1:02 pm-4:25 pm

Nonstop4h 23m

$407

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Tue 1/20

7:15 am-3:04 pm

1 stop6h 49m

Saint Thomas Island Cyril E King

Tue 1/27

4:15 pm-12:24 am

1 stop9h 09m

$422

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sat 11/15

8:09 pm-11:43 am

1 stop14h 34m

Saint Thomas Island Cyril E King

Sun 11/23

4:27 pm-11:59 pm

1 stop8h 32m

$442

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Saint Thomas Island?

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

The month of July is another great option to travel to Saint Thomas Island, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $575.

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 $635. 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 $869.

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 $715. 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 weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $689 when searching 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 $584 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 53% 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?

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

$383

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 $383. 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 $453.
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)
Search flight deals

  • 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
Spirit AirlinesPriceFrom $295Free CancellationRating
6.3
8,115 reviews
Search Spirit Airlines flights
DeltaPriceFrom $346Free CancellationRating
7.9
7,993 reviews
Search Delta flights
United AirlinesPriceFrom $460Free CancellationRating
7.4
8,998 reviews
Search United 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 $460 round-trip. Over the 3 United Airlines flights for this route in a normal week, average airfare is usually $695 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.

An easier way to manage your Saint Thomas Island trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the U.S. Virgin Islands

Airports servicing U.S. Virgin Islands

Saint Croix Airport