What are the cheapest airlines to fly from Washington, D.C. to Saint Thomas Island one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $90. Users have also found prices from $139 and $245 on Spirit Airlines and JetBlue, respectively.

What is the cheapest day to fly from Washington, D.C. to Saint Thomas Island?

Travelers seeking maximum savings on their Washington, D.C. to Saint Thomas Island flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. to Saint Thomas Island?

The most popular flight routes from Washington, D.C. to Saint Thomas Island are Washington, D.C. Dulles Intl - Saint Thomas Island Cyril E King, Washington, D.C. Reagan-National - Saint Thomas Island Cyril E King and Baltimore/Washington - Saint Thomas Island Cyril E King.

What are the most popular airlines that fly from Washington, D.C. to Saint Thomas Island?

Before booking your flight from Washington, D.C. to Saint Thomas Island check out the most popular airlines for this route: American Airlines, Delta or Spirit Airlines.

Where are the most common layover locations when flying from Washington, D.C. to Saint Thomas Island?

Most of the time, Washington, D.C. to Saint Thomas Island flights that have layovers will stop in San Juan.

Where are the least popular layover locations for Washington, D.C. to Saint Thomas Island flights?

Of the flights from Washington, D.C. to Saint Thomas Island that have layovers, the fewest flights stop in Orlando.

What are some popular things to do or see while on a layover in San Juan?

The majority of San Juan visitors spend their time at Viejo San Juan, Casa Blanca, and Museo de Arte Contemporaneo de Puerto Rico. Viejo San Juan, Casa Blanca, and Museo de Arte Contemporaneo de Puerto Rico are located about 7.7 mi, 7.9 mi, and 4.7 mi, respectively from San Juan Luis Munoz Marin Intl. Those looking to explore during their layover in San Juan can rent a car from San Juan Luis Munoz Marin Intl for about $43 per day.

What is the cheapest day to fly round-trip from Washington, D.C. to Saint Thomas Island?

Monday is generally a great day to depart. Flying on this day could help you save up to 34%.

How far in advance should I book a flight from Washington, D.C. to Saint Thomas Island?

Travelers have found it’s best to book a flight 23 days in advance to save up to 80% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 23 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. to Saint Thomas Island 1-2 weeks in advance for as low as $566, or $898 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. to Saint Thomas Island?

September can be a great time to fly to Saint Thomas Island from Washington, D.C. with a flight ticket averaging about $606. Cheapflights users have found deals in the month of September for as cheap as $218. The most expensive prices can be found in the month of April.

What airport do you fly into for flights to Saint Thomas Island from Washington, D.C.?

Most people fly into Saint Thomas Island Cyril E King (STT) if they book a flight to Saint Thomas Island from Washington, D.C.. On average, Cyril E King has 0 inbound flights from Washington, D.C. per day from 5 airlines. Saint Thomas Island Cyril E King is conveniently located just 2.8 mi from Saint Thomas Island’s city center.

How can I find direct flights from Washington, D.C. to Saint Thomas Island?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Saint Thomas Island.

Can I find deals for business class flights from Washington, D.C. to Saint Thomas Island?

Yes. Cheapflights offers flight deals from Washington, D.C. to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$90+ Flights from Washington, D.C. to Saint Thomas Island

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Find cheap flights from Washington, D.C. to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. to Saint Thomas Island Cyril E King are usually found in September or October, booked 62 days in advance, depart on a Tuesday or Thursday and return on a Saturday

Cheap flight deals from Washington, D.C. to Saint Thomas Island

Round-trip from	$258 (Cheapflightsfares)
One-way from	$90 (Priceline)
Popular in	April
Cheapest in	September
Average price	$668
Good round-trip deal	$550 or less
Good one-way deal	$313 or less

From Washington, D.C. (WAS) to Saint Thomas Island Cyril E King

Search Deals

One-way flight from Washington, D.C. (WAS) to Saint Thomas Island Cyril E King

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($98 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. (WAS) to Saint Thomas Island Cyril E King.

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Price to beat on a one-way flight from Washington, D.C. (WAS) to Saint Thomas Island Cyril E King.

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Find flight deals from Washington, D.C. to Saint Thomas Island

Cheapest flights from Washington, D.C. to Saint Thomas Island
Explore the most affordable flight options available from Washington, D.C. to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Tue 7/155:45 amBWI - STT

1 stop9h 25mSpirit Airlines

Sat 7/194:05 pmSTT - BWI

1 stop7h 44mSpirit Airlines

Deal found 6/12

$254

Sun 8/104:31 pmBWI - STT

2 stops23h 58mFrontier

Fri 8/155:14 pmSTT - BWI

2 stops16h 19mFrontier

Deal found 6/11

$325

Wed 11/128:45 amBWI - STT

1 stop24h 00mMultiple Airlines

Sat 11/151:47 pmSTT - BWI

2 stops20h 35mMultiple Airlines

Deal found 6/12

$359

Sun 8/311:58 amIAD - STT

2 stops21h 50mMultiple Airlines

Thu 8/710:43 amSTT - IAD

2 stops22h 40mMultiple Airlines

Deal found 6/10

$392

Thu 7/312:23 pmIAD - STT

1 stop28h 04mFrontier

Mon 7/75:14 pmSTT - IAD

1 stop18h 42mFrontier

Deal found 6/11

$396

Sat 10/258:00 amDCA - STT

1 stop6h 35mJetBlue

Fri 10/312:50 pmSTT - DCA

1 stop7h 06mJetBlue

Deal found 6/11

$407

Wed 7/98:15 amIAD - STT

Nonstop4h 02mUnited Airlines

Wed 7/164:45 pmSTT - IAD

Nonstop4h 12mUnited Airlines

Deal found 6/11

$460

Tue 9/236:00 amDCA - STT

1 stop6h 48mAmerican Airlines

Sun 9/281:40 pmSTT - DCA

1 stop8h 20mAmerican Airlines

Deal found 6/11

$469

Sat 11/88:11 pmIAD - STT

1 stop14h 34mAmerican Airlines

Tue 11/114:38 pmSTT - IAD

1 stop8h 19mAmerican Airlines

Deal found 6/11

$469

Fri 9/126:00 amIAD - STT

1 stop7h 39mDelta

Wed 9/172:49 pmSTT - IAD

1 stop8h 28mDelta

Deal found 6/10

$494

Mon 7/216:59 amDCA - STT

1 stop6h 53mDelta

Thu 8/143:23 pmSTT - DCA

1 stop7h 22mDelta

Deal found 6/12

$509

Wed 7/306:00 amDCA - STT

1 stop9h 43mUnited Airlines

Mon 8/41:19 pmSTT - DCA

1 stop8h 56mUnited Airlines

Deal found 6/10

$644

Best flights from Washington, D.C. to Saint Thomas Island
Discover carefully curated flight deals from Washington, D.C. to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Mon 7/288:00 amBWI - STT

1 stop7h 10mSpirit Airlines

Wed 8/131:47 pmSTT - BWI

1 stop6h 43mSpirit Airlines

Deal found 6/11

$258

Sun 8/104:31 pmBWI - STT

2 stops23h 58mFrontier

Fri 8/155:14 pmSTT - BWI

2 stops16h 19mFrontier

Deal found 6/11

$325

Sun 7/205:35 pmBWI - STT

2 stops22h 54mMultiple Airlines

Mon 7/2812:26 pmSTT - BWI

1 stop21h 53mMultiple Airlines

Deal found 6/11

$373

Sat 10/258:00 amDCA - STT

1 stop6h 35mJetBlue

Fri 10/312:50 pmSTT - DCA

1 stop7h 06mJetBlue

Deal found 6/12

$407

Wed 7/98:15 amIAD - STT

Nonstop4h 02mUnited Airlines

Wed 7/164:45 pmSTT - IAD

Nonstop4h 12mUnited Airlines

Deal found 6/11

$460

Tue 9/236:00 amDCA - STT

1 stop6h 48mAmerican Airlines

Sun 9/281:40 pmSTT - DCA

1 stop8h 20mAmerican Airlines

Deal found 6/11

$469

Fri 9/126:00 amIAD - STT

1 stop7h 39mDelta

Wed 9/172:49 pmSTT - IAD

1 stop8h 28mDelta

Deal found 6/10

$494

Sun 8/311:58 amIAD - STT

2 stops21h 50mMultiple Airlines

Thu 8/710:43 amSTT - IAD

2 stops22h 40mMultiple Airlines

Deal found 6/10

$392

Thu 7/312:23 pmIAD - STT

1 stop28h 04mFrontier

Mon 7/75:14 pmSTT - IAD

1 stop18h 42mFrontier

Deal found 6/11

$396

Sat 11/88:11 pmIAD - STT

1 stop14h 34mAmerican Airlines

Tue 11/114:38 pmSTT - IAD

1 stop8h 19mAmerican Airlines

Deal found 6/12

$469

Mon 7/216:59 amDCA - STT

1 stop6h 53mDelta

Thu 8/143:23 pmSTT - DCA

1 stop7h 22mDelta

Deal found 6/12

$509

Wed 7/306:00 amDCA - STT

1 stop9h 43mUnited Airlines

Mon 8/41:19 pmSTT - DCA

1 stop8h 56mUnited Airlines

Deal found 6/10

$644

Last-minute flights from Washington, D.C. to Saint Thomas Island
Discover last-minute flight deals from Washington, D.C. to Saint Thomas Island. Data last updated June 12, 2025 and is based on user searches.

Wed 6/186:00 amDCA - STT

1 stop9h 43mUnited Airlines

Sat 6/219:10 amSTT - DCA

2 stops11h 49mUnited Airlines

Deal found 6/10

$999

Thu 6/194:31 pmIAD - STT

2 stops23h 56mFrontier

Mon 6/235:12 pmSTT - IAD

1 stop18h 41mFrontier

Deal found 6/11

$412

Thu 6/195:40 pmIAD - STT

3 stops20h 18mMultiple Airlines

Mon 6/233:03 pmSTT - IAD

3 stops20h 23mMultiple Airlines

Deal found 6/11

$590

Fri 6/207:20 amBWI - STT

2 stops9h 07mFrontier

Fri 6/275:12 pmSTT - BWI

1 stop18h 57mFrontier

Deal found 6/10

$432

Fri 6/206:00 amDCA - STT

1 stop10h 00mAmerican Airlines

Tue 7/111:39 amSTT - DCA

1 stop11h 28mAmerican Airlines

Deal found 6/10

$647

Sat 6/218:38 pmBWI - STT

1 stop13h 10mSpirit Airlines

Thu 6/2610:47 amSTT - BWI

1 stop8h 46mSpirit Airlines

Deal found 6/12

$406

Sat 6/218:00 amDCA - STT

1 stop7h 12mJetBlue

Thu 7/102:23 pmSTT - DCA

1 stop7h 36mJetBlue

Deal found 6/10

$537

Sun 6/2210:34 amBWI - STT

2 stops29h 53mMultiple Airlines

Thu 7/104:05 pmSTT - BWI

1 stop7h 44mMultiple Airlines

Deal found 6/10

$376

Sun 6/226:06 amDCA - STT

1 stop6h 08mDelta

Wed 7/91:27 pmSTT - DCA

1 stop7h 16mDelta

Deal found 6/11

$734

Sun 6/228:15 amIAD - STT

Nonstop4h 02mUnited Airlines

Thu 7/104:45 pmSTT - IAD

Nonstop4h 12mUnited Airlines

Deal found 6/10

$770

Sun 6/226:00 amIAD - STT

1 stop8h 51mDelta

Wed 7/91:27 pmSTT - IAD

1 stop9h 49mDelta

Deal found 6/11

$824

Sun 6/226:55 amIAD - STT

1 stop8h 25mAmerican Airlines

Thu 6/264:00 pmSTT - IAD

1 stop7h 59mAmerican Airlines

Deal found 6/9

$969

One-way flights from Washington, D.C. to Saint Thomas Island
Search for one-way flight options from Washington, D.C. to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Sun 6/2212:23 pmIAD - STT

1 stop28h 04mFrontier

Deal found 6/12

$90

Wed 7/95:45 amBWI - STT

1 stop9h 25mSpirit Airlines

Deal found 6/11

$139

Wed 7/912:55 pmIAD - STT

3 stops23h 35mMultiple Airlines

Deal found 6/11

$238

Sun 6/2210:34 amBWI - STT

2 stops29h 53mFrontier

Deal found 6/10

$242

Wed 7/98:00 amDCA - STT

1 stop5h 28mJetBlue

Deal found 6/11

$245

Wed 7/98:15 amIAD - STT

Nonstop4h 02mUnited Airlines

Deal found 6/11

$268

Thu 8/215:02 amBWI - STT

1 stop6h 04mAmerican Airlines

Deal found 6/12

$273

Thu 8/215:00 amDCA - STT

1 stop6h 06mAmerican Airlines

Deal found 6/11

$273

Wed 7/96:00 amIAD - STT

1 stop9h 00mDelta

Deal found 6/11

$273

Sat 7/266:05 amDCA - STT

1 stop6h 12mDelta

Deal found 6/10

$298

Tue 7/295:20 pmBWI - STT

2 stops22h 23mUnited Airlines

Deal found 6/10

$430

Tue 6/247:00 amDCA - STT

2 stops11h 00mMultiple Airlines

Deal found 6/9

$432

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSaint Thomas Island

BWI - STT

BWISTT

Baltimore/Washington

Wed 7/9

5:45 am-3:10 pm

1 stop9h 25m

Saint Thomas Island Cyril E King

Tue 7/15

4:05 pm-11:49 pm

1 stop7h 44m

$257

BaltimoreSaint Thomas Island

BWI - STT

BWISTT

Baltimore/Washington

Sun 8/10

4:31 pm-4:29 pm

2 stops23h 58m

Saint Thomas Island Cyril E King

Fri 8/15

5:14 pm-9:33 am

2 stops16h 19m

$325

BaltimoreSaint Thomas Island

BWI - STT

BWISTT

Baltimore/Washington

Wed 11/12

8:45 am-9:45 am

1 stop24h 00m

Saint Thomas Island Cyril E King

Sat 11/15

1:47 pm-9:22 am

2 stops20h 35m

$359

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sun 8/3

11:58 am-9:48 am

2 stops21h 50m

Saint Thomas Island Cyril E King

Thu 8/7

10:43 am-9:23 am

2 stops22h 40m

$392

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Thu 7/3

12:23 pm-4:27 pm

1 stop28h 04m

Saint Thomas Island Cyril E King

Mon 7/7

5:14 pm-11:56 am

1 stop18h 42m

$396

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Sat 10/25

8:00 am-2:35 pm

1 stop6h 35m

Saint Thomas Island Cyril E King

Fri 10/31

2:50 pm-9:56 pm

1 stop7h 06m

$407

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Wed 7/9

8:15 am-12:17 pm

Nonstop4h 02m

Saint Thomas Island Cyril E King

Wed 7/16

4:45 pm-8:57 pm

Nonstop4h 12m

$460

Washington, D.C.Saint Thomas Island

DCA - STT

DCASTT

Washington, D.C. Reagan-National

Tue 9/23

6:00 am-12:48 pm

1 stop6h 48m

Saint Thomas Island Cyril E King

Sun 9/28

1:40 pm-10:00 pm

1 stop8h 20m

$469

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Sat 11/8

8:11 pm-11:45 am

1 stop14h 34m

Saint Thomas Island Cyril E King

Tue 11/11

4:38 pm-11:57 pm

1 stop8h 19m

$469

Washington, D.C.Saint Thomas Island

IAD - STT

IADSTT

Washington, D.C. Dulles Intl

Fri 9/12

6:00 am-1:39 pm

1 stop7h 39m

Saint Thomas Island Cyril E King

Wed 9/17

2:49 pm-11:17 pm

1 stop8h 28m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 27 results

The best insider tips for Washington, D.C. to Saint Thomas Island flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Saint Thomas Island trip

Airports

IAD

Expect long security queues at IAD, especially in the afternoon. Plan extra time to navigate the airport's complex layout.

STT

At STT, rental car counters are conveniently located inside baggage claim, allowing you to secure transportation while waiting for your luggage.

Our travel experts

Mark Chesnut

Expert on STT

Ramsey Qubein

Expert on IAD

Best time to book a flight from Washington, D.C. to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Saint Thomas Island

How far ahead should I book a flight from Washington, D.C. to Saint Thomas Island?

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Saint Thomas Island, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Saint Thomas Island (average of $433). Flying from Washington, D.C. to Saint Thomas Island in June is currently the most expensive (average of $650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to STT?

When flying from Washington, D.C. to Saint Thomas Island, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 51% versus a flight in the morning.

Reviews of airlines servicing Saint Thomas Island

Peruse reviews from past customers who have flown with Delta, United Airlines and JetBlue from Washington, D.C. to Saint Thomas Island to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

JetBlue

7.3

Good

2,925 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Spirit Airlines

6.3

Okay

8,052 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Saint Thomas Island from Washington, D.C.?
Most people fly into Saint Thomas Island Cyril E King (STT) if they book a flight to Saint Thomas Island from Washington, D.C.. On average, Cyril E King has 0 inbound flights from Washington, D.C. per day from 5 airlines. Saint Thomas Island Cyril E King is conveniently located just 2.8 mi from Saint Thomas Island’s city center.
What are the cheapest airlines flying from Washington, D.C. to Saint Thomas Island round-trip?
Cheapflights users have booked flights from Washington, D.C. to Saint Thomas Island round-trip from $258. Other airlines that can offer you cheap pricing are Frontier, from $325, and JetBlue, from $407. You may be able to fly from Washington, D.C. to Saint Thomas Island for 57% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Washington, D.C. to Saint Thomas Island one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $90. Users have also found prices from $139 and $245 on Spirit Airlines and JetBlue, respectively.
What are the most popular routes from Washington, D.C. to Saint Thomas Island?
The most popular flight routes from Washington, D.C. to Saint Thomas Island are Washington, D.C. Dulles Intl - Saint Thomas Island Cyril E King, Washington, D.C. Reagan-National - Saint Thomas Island Cyril E King and Baltimore/Washington - Saint Thomas Island Cyril E King.
Where are the most common layover locations when flying from Washington, D.C. to Saint Thomas Island?
Most of the time, Washington, D.C. to Saint Thomas Island flights that have layovers will stop in San Juan.
What are some popular things to do or see while on a layover in San Juan?
The majority of San Juan visitors spend their time at Viejo San Juan, Casa Blanca, and Museo de Arte Contemporaneo de Puerto Rico. Viejo San Juan, Casa Blanca, and Museo de Arte Contemporaneo de Puerto Rico are located about 7.7 mi, 7.9 mi, and 4.7 mi, respectively from San Juan Luis Munoz Marin Intl. Those looking to explore during their layover in San Juan can rent a car from San Juan Luis Munoz Marin Intl for about $43 per day.
Where are the least popular layover locations for Washington, D.C. to Saint Thomas Island flights?
Of the flights from Washington, D.C. to Saint Thomas Island that have layovers, the fewest flights stop in Orlando.
Can I find deals for flights from Washington, D.C. to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Saint Thomas Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Saint Thomas Island.
Can I find deals for business class flights from Washington, D.C. to Saint Thomas Island?
Yes. Cheapflights offers flight deals from Washington, D.C. to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Saint Thomas Island (average of $433). Flying from Washington, D.C. to Saint Thomas Island in June is currently the most expensive (average of $650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

St. John

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Washington, D.C. to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$196	Average$431	FlexibilityNo cancel fee	On-time65%
JetBlue	Cheapest$287	Average$494	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$437	Average$680	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$437	Average$649	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$458	Average$641	FlexibilityNo cancel fee	On-time69%

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$90+ Cheap flights from Washington, D.C. (WAS) to Saint Thomas Island (STT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. to Saint Thomas Island Cyril E King are usually found in September or October, booked 62 days in advance, depart on a Tuesday or Thursday and return on a Saturday

Cheap flight deals from Washington, D.C. to Saint Thomas Island

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Washington, D.C. to Saint Thomas Island

Cheapest flights from Washington, D.C. to Saint Thomas IslandExplore the most affordable flight options available from Washington, D.C. to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Washington, D.C. to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

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Best time to book a flight from Washington, D.C. to Saint Thomas Island

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Everything you need to know about your flight from Washington, D.C. to Saint Thomas Island

How far ahead should I book a flight from Washington, D.C. to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Saint Thomas Island. Price data was last updated on June 9, 2025.

What is the cheapest month to book a flight from Washington, D.C. to Saint Thomas Island?

What is the cheapest time of day to fly from WAS to STT?

Find hourly flight availability from Washington, D.C. to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Reviews of airlines servicing Saint Thomas Island

Peruse reviews from past customers who have flown with Delta, United Airlines and JetBlue from Washington, D.C. to Saint Thomas Island to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Saint Thomas Island from Washington, D.C.?

What are the cheapest airlines flying from Washington, D.C. to Saint Thomas Island round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Saint Thomas Island one-way?

What are the most popular routes from Washington, D.C. to Saint Thomas Island?

Where are the most common layover locations when flying from Washington, D.C. to Saint Thomas Island?

What are some popular things to do or see while on a layover in San Juan?

Where are the least popular layover locations for Washington, D.C. to Saint Thomas Island flights?

Can I find deals for flights from Washington, D.C. to Saint Thomas Island that include hotel bookings?

How can I find direct flights from Washington, D.C. to Saint Thomas Island?

Can I find deals for business class flights from Washington, D.C. to Saint Thomas Island?

What is the cheapest month to book a flight from Washington, D.C. to Saint Thomas Island?

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Alternative routes for Washington, D.C. to Saint Thomas Island

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Cheapest flights from Washington, D.C. to Saint Thomas Island
Explore the most affordable flight options available from Washington, D.C. to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.