What are the cheapest airlines flying from Boston to Saint Thomas Island round-trip?

Currently priced at $168, Delta will fly you from Boston to Saint Thomas Island and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and United Airlines - these airlines can fly you to your destination from $170 and $221, respectively. Delta is priced at 65% lower than the current average price of a flight leaving 3 months from now.

What is the cheapest day to fly from Boston to Saint Thomas Island?

Travelers seeking maximum savings on their Boston to Saint Thomas Island flight should consider departing on Tuesday 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 cheapest flights from Boston to Saint Thomas Island?

While on average a flight from Boston to Saint Thomas Island is generally $394, our data shows the cheapest flight currently is $173. When looking at the most popular route, (Boston Logan Intl - Saint Thomas Island Cyril E King), you can expect to pay $262 for that flight.

What are the most popular airlines that fly from Boston to Saint Thomas Island?

When booking a flight from Boston to Saint Thomas Island, you may want to consider flying on American Airlines, JetBlue or Delta as they are the most popular for this route.

Where are the most common layover locations when flying from Boston to Saint Thomas Island?

Boston to Saint Thomas Island flights have a layover in San Juan most often. Miami sees the next most layovers on Boston to Saint Thomas Island flights. Fort Lauderdale comes in third as the most popular layover location on Boston to Saint Thomas Island flights.

Where are the least popular layover locations for Boston to Saint Thomas Island flights?

Boston to Saint Thomas Island flights have a layover in Charlotte the least frequently. New York sees the next fewest layovers on Boston to Saint Thomas Island flights. Philadelphia sees the third fewest flights with layovers for the Boston to Saint Thomas Island route.

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

If you're on a layover in San Juan and looking for things to do, consider visiting Viejo San Juan, Casa Blanca, or Centro de Bellas Artes Luis A. Ferre. Travelers on a layover in San Juan can visit Viejo San Juan, Casa Blanca, and Centro de Bellas Artes Luis A. Ferre, by traveling 7.7 mi, 7.9 mi, and 4.3 mi, respectively after landing at San Juan Luis Munoz Marin Intl. Travelers can book a car rental at San Juan Luis Munoz Marin Intl for about $52 per day to make their sightseeing more efficient.

What are some popular points of interest to see during a layover in Miami?

Wynwood Art District, Bayfront Park, and Kaseya Center are the most popular attractions in Miami if you're in need of something to do during your layover. Wynwood Art District, Bayfront Park, and Kaseya Center can be accessed by traveling approximately 5.5 mi, 6.4 mi, and 6.2 mi, respectively from Miami. Travelers in need of a car in Miami can rent one for about $29 per day.

What are points of interest worth seeing during a layover in Fort Lauderdale?

Las Olas Beach, Port Everglades, and Fort Lauderdale Beach Park are currently the most popular points of interest in Fort Lauderdale. Las Olas Beach, Port Everglades, and Fort Lauderdale Beach Park can be accessed by traveling approximately 4.1 mi, 2.1 mi, and 4.2 mi, respectively from Fort Lauderdale. Travelers can book a car rental at Fort Lauderdale for about $26 per day to make their sightseeing more efficient.

What is the cheapest day to fly round-trip from Boston to Saint Thomas Island?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 58%.

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

Users have found that booking a flight from Boston to Saint Thomas Island at least 48 days early can save you up to 68% on average compared to booking a flight this week. If booking 48 days before your flight isn’t an option for you, users have found flights from Boston to Saint Thomas Island for as little as $420 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $513 for flights departing within the next 3 days.

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

Flights from Boston to Saint Thomas Island lean towards being more expensive in April. Prices are generally better when you fly from Boston to Saint Thomas Island in January, with the cheapest ticket starting at $197.

Can I find deals for flights from Boston to Saint Thomas Island that include hotel bookings?

Yes. In addition to deals on Boston to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boston 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 Boston to Saint Thomas Island.

Can I find deals for business class flights from Boston to Saint Thomas Island?

Yes. Cheapflights offers flight deals from Boston 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.

$137+ Flights from Boston to Saint Thomas Island

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Cheapflights Tip: The best prices from Boston Logan Intl to Saint Thomas Island Cyril E King are usually found in January or August, booked 47 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Boston to Saint Thomas Island

Round-trip from	$256 (Cheapflightsfares)
One-way from	$137 (Kiwi.com)
Popular in	April
Cheapest in	January
Average price	$410
Good round-trip deal	$408 or less
Good one-way deal	$204 or less

From Boston Logan Intl to Saint Thomas Island Cyril E King

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One-way flight from Boston Logan Intl to Saint Thomas Island Cyril E King

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Highest demand for flights based on searches. 8% potential increase in price ($43 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Price to beat on a round-trip flight from Boston Logan Intl to Saint Thomas Island Cyril E King.

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Price to beat on a one-way flight from Boston Logan Intl to Saint Thomas Island Cyril E King.

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Find flight deals from Boston to Saint Thomas Island

Cheapest flights from Boston to Saint Thomas Island
Explore the most affordable flight options available from Boston to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

Wed 11/126:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Wed 11/194:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/14

$262

Tue 11/116:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Wed 11/194:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/14

$263

Tue 11/116:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Sat 11/151:33 pmSTT - BOS

1 stop12h 07mSpirit Airlines

Deal found 8/14

$267

Wed 9/36:55 pmBOS - STT

1 stop14h 49mSpirit Airlines

Sat 9/1310:49 amSTT - BOS

1 stop13h 08mSpirit Airlines

Deal found 8/14

$268

Wed 9/106:00 amBOS - STT

3 stops27h 44mSpirit Airlines

Sat 9/2010:49 amSTT - BOS

1 stop13h 08mSpirit Airlines

Deal found 8/14

$277

Sun 11/96:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Sat 11/151:33 pmSTT - BOS

1 stop12h 07mSpirit Airlines

Deal found 8/13

$280

Mon 11/106:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Mon 11/171:33 pmSTT - BOS

1 stop12h 07mSpirit Airlines

Deal found 8/14

$281

Tue 11/116:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Mon 11/171:33 pmSTT - BOS

1 stop12h 07mSpirit Airlines

Deal found 8/14

$282

Mon 9/296:49 pmBOS - STT

1 stop14h 55mSpirit Airlines

Sat 10/410:49 amSTT - BOS

1 stop13h 08mSpirit Airlines

Deal found 8/15

$284

Best flights from Boston to Saint Thomas Island
Discover carefully curated flight deals from Boston to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2025.

Mon 11/106:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Wed 11/194:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/15

$262

Wed 11/126:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Wed 11/194:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/14

$262

Mon 11/106:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Tue 11/184:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/14

$262

Wed 11/126:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Tue 11/184:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/13

$262

Tue 11/116:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Wed 11/194:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/14

$263

Tue 11/116:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Tue 11/184:06 pmSTT - BOS

1 stop7h 02mSpirit Airlines

Deal found 8/14

$263

Tue 11/116:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Sat 11/151:33 pmSTT - BOS

1 stop12h 07mSpirit Airlines

Deal found 8/15

$266

Last-minute flights from Boston to Saint Thomas Island
Discover last-minute flight deals from Boston to Saint Thomas Island. Data last updated August 16, 2025 and is based on user searches.

Wed 8/206:55 pmBOS - STT

1 stop16h 18mSpirit Airlines

Wed 8/272:43 pmSTT - BOS

1 stop18h 56mSpirit Airlines

Deal found 8/14

$517

Fri 8/226:55 pmBOS - STT

1 stop16h 18mSpirit Airlines

Fri 8/294:24 pmSTT - BOS

1 stop17h 15mSpirit Airlines

Deal found 8/15

$385

Fri 8/225:54 amBOS - STT

2 stops10h 06mAmerican Airlines

Fri 8/295:10 pmSTT - BOS

2 stops14h 43mAmerican Airlines

Deal found 8/15

$449

Fri 8/2210:39 amBOS - STT

3 stops24h 34mMultiple Airlines

Fri 8/2912:18 pmSTT - BOS

2 stops21h 21mMultiple Airlines

Deal found 8/15

$483

Sat 8/236:55 pmBOS - STT

1 stop16h 18mSpirit Airlines

Thu 8/282:43 pmSTT - BOS

1 stop18h 56mSpirit Airlines

Deal found 8/15

$469

Sat 8/232:53 pmBOS - STT

2 stops20h 20mMultiple Airlines

Thu 8/282:43 pmSTT - BOS

1 stop17h 52mMultiple Airlines

Deal found 8/15

$511

Sun 8/2410:34 amBOS - STT

1 stop28h 45mSpirit Airlines

Tue 8/262:43 pmSTT - BOS

1 stop18h 56mSpirit Airlines

Deal found 8/14

$495

Sun 8/249:22 amBOS - STT

3 stops29h 57mMultiple Airlines

Tue 8/2612:18 pmSTT - BOS

2 stops25h 30mMultiple Airlines

Deal found 8/14

$528

Wed 9/36:55 pmBOS - STT

1 stop14h 49mSpirit Airlines

Sat 9/1310:49 amSTT - BOS

1 stop13h 08mSpirit Airlines

Deal found 8/14

$268

Sat 9/612:20 pmBOS - STT

2 stops21h 24mSpirit Airlines

Sat 9/1310:49 amSTT - BOS

1 stop13h 08mSpirit Airlines

Deal found 8/15

$303

Mon 9/86:49 pmBOS - STT

1 stop14h 55mSpirit Airlines

Tue 9/1610:49 amSTT - BOS

1 stop13h 08mSpirit Airlines

Deal found 8/15

$287

Mon 9/86:49 pmBOS - STT

1 stop14h 55mSpirit Airlines

Mon 9/154:02 pmSTT - BOS

1 stop21h 46mSpirit Airlines

Deal found 8/15

$304

One-way flights from Boston to Saint Thomas Island
Search for one-way flight options from Boston to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated August 16, 2025.

Sat 9/133:00 pmBOS - STT

1 stop18h 44mSpirit Airlines

Deal found 8/15

$137

Wed 9/1712:20 pmBOS - STT

2 stops21h 24mSpirit Airlines

Deal found 8/14

$139

Mon 9/156:49 pmBOS - STT

1 stop14h 55mSpirit Airlines

Deal found 8/15

$148

Tue 9/26:05 amBOS - STT

2 stops31h 43mSpirit Airlines

Deal found 8/14

$153

Thu 11/136:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Deal found 8/14

$154

Sun 9/146:49 pmBOS - STT

1 stop14h 55mSpirit Airlines

Deal found 8/15

$158

Sat 8/308:40 amBOS - STT

Nonstop4h 01mJetBlue

Deal found 8/14

$159

Tue 11/116:15 amBOS - STT

1 stop7h 56mSpirit Airlines

Deal found 8/15

$160

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Mon 11/10

6:15 am-3:11 pm

1 stop7h 56m

Saint Thomas Island Cyril E King

Wed 11/19

4:06 pm-10:08 pm

1 stop7h 02m

$262

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Wed 11/12

6:15 am-3:11 pm

1 stop7h 56m

Saint Thomas Island Cyril E King

Wed 11/19

4:06 pm-10:08 pm

1 stop7h 02m

$262

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Mon 11/10

6:15 am-3:11 pm

1 stop7h 56m

Saint Thomas Island Cyril E King

Tue 11/18

4:06 pm-10:08 pm

1 stop7h 02m

$262

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Wed 11/12

6:15 am-3:11 pm

1 stop7h 56m

Saint Thomas Island Cyril E King

Tue 11/18

4:06 pm-10:08 pm

1 stop7h 02m

$262

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Tue 11/11

6:15 am-3:11 pm

1 stop7h 56m

Saint Thomas Island Cyril E King

Wed 11/19

4:06 pm-10:08 pm

1 stop7h 02m

$263

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Tue 11/11

6:15 am-3:11 pm

1 stop7h 56m

Saint Thomas Island Cyril E King

Tue 11/18

4:06 pm-10:08 pm

1 stop7h 02m

$263

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Tue 11/11

6:15 am-3:11 pm

1 stop7h 56m

Saint Thomas Island Cyril E King

Sat 11/15

1:33 pm-12:40 am

1 stop12h 07m

$266

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Sat 9/13

3:00 pm-9:44 am

1 stop18h 44m

$137

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Wed 9/17

12:20 pm-9:44 am

2 stops21h 24m

$139

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Sat 9/20

12:20 pm-9:44 am

2 stops21h 24m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 13 results

Best time to book a flight from Boston to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Boston 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 Boston to Saint Thomas Island

How far ahead should I book a flight from Boston to Saint Thomas Island?

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Saint Thomas Island. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from Boston to Saint Thomas Island (average of $433). Flying from Boston to Saint Thomas Island in June is currently the most expensive (average of $648). 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 BOS to STT?

When flying from Boston to Saint Thomas Island, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 53% versus a flight in the morning.

What’s the top layover airport for flights from Boston to Saint Thomas Island?

Newark (EWR) – chosen by Cheapflights users on 50% of 1-stop itineraries from Boston to Saint Thomas Island on Cheapflights.

What’s the cheapest layover airport for flights from Boston to Saint Thomas Island?

Fort Lauderdale (FLL) is the most affordable 1-stop option, with an average round-trip price of $322.

What’s the fastest layover option from Boston to Saint Thomas Island?

Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 7h 13m.

Which airport typically offers the quickest layover for flights from Boston to Saint Thomas Island?

Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 2h 03m.

Reviews of airlines servicing Saint Thomas Island

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Boston to Saint Thomas Island by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,985 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

7,985 reviews

Delta

8.0

Very good

7,985 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

8,916 reviews

Delta

8.0

Very good

7,985 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

7,985 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

7.2

Good

2,916 reviews

Delta

8.0

Very good

7,985 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

8,042 reviews

Delta

8.0

Very good

7,985 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 are the cheapest airlines flying from Boston to Saint Thomas Island round-trip?
Currently priced at $168, Delta will fly you from Boston to Saint Thomas Island and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and United Airlines - these airlines can fly you to your destination from $170 and $221, respectively. Delta is priced at 65% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest flights from Boston to Saint Thomas Island?
While on average a flight from Boston to Saint Thomas Island is generally $394, our data shows the cheapest flight currently is $173. When looking at the most popular route, (Boston Logan Intl - Saint Thomas Island Cyril E King), you can expect to pay $262 for that flight.
Where are the most common layover locations when flying from Boston to Saint Thomas Island?
Boston to Saint Thomas Island flights have a layover in San Juan most often. Miami sees the next most layovers on Boston to Saint Thomas Island flights. Fort Lauderdale comes in third as the most popular layover location on Boston to Saint Thomas Island flights.
What are some popular things to do or see while on a layover in San Juan?
If you're on a layover in San Juan and looking for things to do, consider visiting Viejo San Juan, Casa Blanca, or Centro de Bellas Artes Luis A. Ferre. Travelers on a layover in San Juan can visit Viejo San Juan, Casa Blanca, and Centro de Bellas Artes Luis A. Ferre, by traveling 7.7 mi, 7.9 mi, and 4.3 mi, respectively after landing at San Juan Luis Munoz Marin Intl. Travelers can book a car rental at San Juan Luis Munoz Marin Intl for about $52 per day to make their sightseeing more efficient.
What are some popular points of interest to see during a layover in Miami?
Wynwood Art District, Bayfront Park, and Kaseya Center are the most popular attractions in Miami if you're in need of something to do during your layover. Wynwood Art District, Bayfront Park, and Kaseya Center can be accessed by traveling approximately 5.5 mi, 6.4 mi, and 6.2 mi, respectively from Miami. Travelers in need of a car in Miami can rent one for about $29 per day.
What are points of interest worth seeing during a layover in Fort Lauderdale?
Las Olas Beach, Port Everglades, and Fort Lauderdale Beach Park are currently the most popular points of interest in Fort Lauderdale. Las Olas Beach, Port Everglades, and Fort Lauderdale Beach Park can be accessed by traveling approximately 4.1 mi, 2.1 mi, and 4.2 mi, respectively from Fort Lauderdale. Travelers can book a car rental at Fort Lauderdale for about $26 per day to make their sightseeing more efficient.
Where are the least popular layover locations for Boston to Saint Thomas Island flights?
Boston to Saint Thomas Island flights have a layover in Charlotte the least frequently. New York sees the next fewest layovers on Boston to Saint Thomas Island flights. Philadelphia sees the third fewest flights with layovers for the Boston to Saint Thomas Island route.
Can I find deals for flights from Boston to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on Boston to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston 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 Boston to Saint Thomas Island.
Can I find deals for business class flights from Boston to Saint Thomas Island?
Yes. Cheapflights offers flight deals from Boston 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 Boston to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from Boston to Saint Thomas Island (average of $433). Flying from Boston to Saint Thomas Island in June is currently the most expensive (average of $648). 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 Boston to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$168	Average$470	FlexibilityNo cancel fee	On-timeN/A
Spirit Airlines	Cheapest$170	Average$335	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$221	Average$502	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$228	Average$526	FlexibilityNo cancel fee	On-time71%
JetBlue	Cheapest$264	Average$541	FlexibilityNo cancel fee	On-time62%

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$137+ Cheap flights from Boston (BOS) 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston 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 Boston Logan Intl to Saint Thomas Island Cyril E King are usually found in January or August, booked 47 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Boston 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 Boston to Saint Thomas Island

Cheapest flights from Boston to Saint Thomas IslandExplore the most affordable flight options available from Boston to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

Explore the most affordable flight options available from Boston to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Saint Thomas Island that are best for you.

Best time to book a flight from Boston to Saint Thomas Island

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

Cheapflights Insights

Everything you need to know about your flight from Boston to Saint Thomas Island

How far ahead should I book a flight from Boston to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Saint Thomas Island. Price data was last updated on August 8, 2025.

What is the cheapest month to book a flight from Boston to Saint Thomas Island?

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

Find hourly flight availability from Boston 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 August 16, 2025.

What’s the top layover airport for flights from Boston to Saint Thomas Island?

Share of 1-stop round-trip flights from Boston to Saint Thomas Island chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from Boston to Saint Thomas Island?

Average round-trip fare for 1-stop flights from Boston to Saint Thomas Island, chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from Boston to Saint Thomas Island?

Shortest average travel time for 1-stop one-way flights from Boston to Saint Thomas Island, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from Boston to Saint Thomas Island?

Average layover duration for 1-stop one-way flights from Boston to Saint Thomas Island, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Saint Thomas Island

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Boston to Saint Thomas Island by reading reviews from past customers. Users have also rated airlines 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 Boston 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 are the cheapest airlines flying from Boston to Saint Thomas Island round-trip?

What are the cheapest flights from Boston to Saint Thomas Island?

Where are the most common layover locations when flying from Boston to Saint Thomas Island?

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

What are some popular points of interest to see during a layover in Miami?

What are points of interest worth seeing during a layover in Fort Lauderdale?

Where are the least popular layover locations for Boston to Saint Thomas Island flights?

Can I find deals for flights from Boston to Saint Thomas Island that include hotel bookings?

How can I find direct flights from Boston to Saint Thomas Island?

Can I find deals for business class flights from Boston to Saint Thomas Island?

What is the cheapest month to book a flight from Boston to Saint Thomas Island?

Traveling to a place near Saint Thomas Island?

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Top 5 airlines flying from Boston to Saint Thomas Island

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Cheapest flights from Boston to Saint Thomas Island
Explore the most affordable flight options available from Boston to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.