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Saint Thomas Island

$112+ Cheap flights from Philadelphia (PHL) 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STT
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Find cheap flights from Philadelphia to Saint Thomas Island with Cheapflights

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Cheapflights Tip: The best prices from Philadelphia to Saint Thomas Island Cyril E King are usually found in September or May, booked 20 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from Philadelphia to Saint Thomas Island

Cheapest flights from Philadelphia to Saint Thomas Island
Explore the most affordable flight options available from Philadelphia to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:54 pmPHL - STT
1 stop13h 37mSpirit Airlines
Wed 12/3112:31 pmSTT - PHL
1 stop11h 46mSpirit Airlines
Deal found 12/16$530
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:10 amPHL - STT
1 stop29h 21mMultiple Airlines
Wed 12/2412:31 pmSTT - PHL
1 stop8h 54mMultiple Airlines
Deal found 12/14$546
This Cheapflightsfares deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:25 amPHL - STT
1 stop8h 03mSpirit Airlines
Wed 12/3112:31 pmSTT - PHL
1 stop11h 46mSpirit Airlines
Deal found 12/16$561
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:00 pmPHL - STT
1 stop15h 28mMultiple Airlines
Wed 12/2412:31 pmSTT - PHL
1 stop8h 54mMultiple Airlines
Deal found 12/14$563
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 pmPHL - STT
1 stop16h 26mMultiple Airlines
Tue 1/63:23 pmSTT - PHL
2 stops28h 50mMultiple Airlines
Deal found 12/17$565
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amPHL - STT
2 stops25h 45mMultiple Airlines
Wed 12/3112:31 pmSTT - PHL
1 stop11h 46mMultiple Airlines
Deal found 12/16$574
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:00 pmPHL - STT
2 stops36h 31mMultiple Airlines
Tue 12/2312:31 pmSTT - PHL
1 stop8h 54mMultiple Airlines
Deal found 12/15$579
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 pmPHL - STT
1 stop16h 26mMultiple Airlines
Mon 1/55:28 pmSTT - PHL
2 stops50h 45mMultiple Airlines
Deal found 12/16$585
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amPHL - STT
1 stop29h 01mMultiple Airlines
Tue 1/63:23 pmSTT - PHL
2 stops18h 44mMultiple Airlines
Deal found 12/16$586

Find flight deals from Philadelphia to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 17, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$250
(Priceline)

One-way from

$112
(JetBlue)

Popular in

December

Cheapest in

September

Average price

$968

Good round-trip deal

$670 or less

Good one-way deal

$323 or less
Provider with most accurate pricing for Philadelphia-Saint Thomas Island Cyril E King flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Saint Thomas Island Cyril E King flights.
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From Philadelphia to Saint Thomas Island Cyril E King
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One-way flight from Philadelphia to Saint Thomas Island Cyril E King
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Philadelphia to Saint Thomas Island Cyril E King.
Search Deals
Price to beat on a one-way flight from Philadelphia to Saint Thomas Island Cyril E King.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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, Cheapflights users made 2,558,603 searches. Data last updated December 17, 2025.
Use the filters below to find and compare flights from Philadelphia to Saint Thomas Island that are best for you.

Fly from

Philadelphia

Fly to

Saint Thomas Island

Route

Depart

Return

Price

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 1/25

8:43 pm-2:52 pm

1 stop17h 09m

Saint Thomas Island Cyril E King

Thu 1/29

3:57 pm-10:03 pm

1 stop7h 06m

$277

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 1/11

8:43 pm-2:52 pm

1 stop17h 09m

Saint Thomas Island Cyril E King

Sun 2/15

3:36 pm-10:57 pm

1 stop8h 21m

$354

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 2/10

5:30 am-4:37 pm

2 stops10h 07m

Saint Thomas Island Cyril E King

Wed 2/18

5:40 pm-7:03 pm

3 stops26h 23m

$371

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 3/17

5:57 pm-1:26 pm

2 stops19h 29m

Saint Thomas Island Cyril E King

Tue 3/24

2:36 pm-11:58 pm

2 stops9h 22m

$431

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Fri 2/13

9:41 pm-4:34 pm

2 stops17h 53m

Saint Thomas Island Cyril E King

Wed 2/18

5:40 pm-8:50 am

1 stop16h 10m

$434

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Fri 2/13

8:00 pm-2:31 pm

1 stop17h 31m

Saint Thomas Island Cyril E King

Wed 2/18

3:36 pm-9:25 pm

1 stop6h 49m

$435

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 1/27

7:45 pm-1:56 pm

1 stop17h 11m

Saint Thomas Island Cyril E King

Fri 1/30

5:25 pm-9:37 am

2 stops17h 12m

$483

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 1/14

7:45 pm-4:18 pm

2 stops19h 33m

Saint Thomas Island Cyril E King

Wed 1/21

5:25 pm-9:37 am

2 stops17h 12m

$483

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 3/7

2:52 pm-3:18 pm

2 stops23h 26m

Saint Thomas Island Cyril E King

Thu 3/12

2:05 pm-9:47 am

2 stops19h 42m

$518

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Thu 2/12

6:00 pm-2:31 pm

2 stops19h 31m

Saint Thomas Island Cyril E King

Sun 2/15

3:36 pm-9:25 pm

1 stop6h 49m

$528

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 20 results
1
2

Compare providers for flights from Philadelphia to Saint Thomas Island

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Saint Thomas Island in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Saint Thomas Island flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Philadelphia-Saint Thomas Island flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Philadelphia-Saint Thomas Island flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Saint Thomas Island flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Saint Thomas Island. Price data was last updated on December 12, 2025.

The price you pay for your flight from Philadelphia to Saint Thomas Island may vary depending on when you book. For the best chance of a lower fare, look to book 20 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Philadelphia to Saint Thomas Island (average of $95). Flying from Philadelphia to Saint Thomas Island in November is currently the most expensive (average of $246). 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 PHL to STT?

Find hourly flight availability from Philadelphia 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 December 17, 2025.

When flying from Philadelphia 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 evening, which can drop the price by up to 54% versus a flight in the morning.

Reviews of airlines servicing Saint Thomas Island

Get insights into the airlines that provide service to Saint Thomas Island. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Thomas Island. Reviews last updated December 17, 2025.
Read through reviews of airlines operating flights from Philadelphia to Saint Thomas Island, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,186 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,082 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia 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.

  • How long is the flight from Philadelphia to Saint Thomas Island?

    There are many flights that can get you from Philadelphia to Saint Thomas Island in 17h 09m. Fly via Spirit Airlines to get the fastest option. The distance between Philadelphia and Saint Thomas Island is about 1608 mi.

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

    Our cheapest airline available from Philadelphia to Saint Thomas Island is Frontier. Our recent data shows that you can find tickets from as low as $106 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $222 and $464 round-trip. Frontier is currently priced 83% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Philadelphia to Saint Thomas Island one-way?

    $53 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and American Airlines, with prices starting from $108 and $243, respectively.

  • What are the most reliable airlines from Philadelphia to Saint Thomas Island?

    Before booking your flight to Saint Thomas Island from Philadelphia, check out the most reliable airlines to get you to your destination on time: American Airlines (100%), Qatar Airways (100%), Alaska Airlines( 100%).

  • What are the cheapest flights from Philadelphia to Saint Thomas Island?

    On average you can expect to pay $594 for a flight from Philadelphia to Saint Thomas Island. The cheapest flight overall is $323 while the most popular route, (Philadelphia - Saint Thomas Island Cyril E King) is currently priced at $250.

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia 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 Philadelphia to Saint Thomas Island?

    Currently, March is the cheapest month in which you can book a flight from Philadelphia to Saint Thomas Island (average of $95). Flying from Philadelphia to Saint Thomas Island in November is currently the most expensive (average of $246). 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

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

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Alternative routes for Philadelphia to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Saint Thomas Island flights
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Top 5 airlines flying from Philadelphia to Saint Thomas Island

Discover the top 5 airlines that operate flights from Philadelphia to Saint Thomas Island. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$222FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$225Average$390FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$469Average$739FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$493Average$705FlexibilityNo cancel feeOn-time69%
DeltaCheapest$512Average$799FlexibilityNo cancel feeOn-timeN/A

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