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Saint Thomas Island

$67+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Saint Thomas Island Cyril E King are usually found in September or October, booked 33 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Cheap 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 July 3, 2025.

Round-trip from

$174
(Priceline)

One-way from

$67
(Priceline)

Popular in

December

Cheapest in

September

Average price

$563

Good round-trip deal

$790 or less
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
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Highest demand for flights based on searches. 7% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Philadelphia to Saint Thomas Island Cyril E King.
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Find 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 July 3, 2025.

This Priceline deal was found by Cheapflights users on 7/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/146:00 amPHL - STT
1 stop10h 29mFrontier
Fri 7/185:14 pmSTT - PHL
1 stop8h 31mFrontier
Deal found 7/3$174
This Priceline deal was found by Cheapflights users on 7/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/178:05 pmPHL - STT
1 stop20h 24mMultiple Airlines
Mon 8/252:43 pmSTT - PHL
1 stop8h 46mMultiple Airlines
Deal found 7/3$209
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/197:05 pmPHL - STT
1 stop17h 25mSpirit Airlines
Sat 7/264:05 pmSTT - PHL
1 stop7h 16mSpirit Airlines
Deal found 7/1$250

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 July 3, 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

Mon 7/14

6:00 am-4:29 pm

1 stop10h 29m

Saint Thomas Island Cyril E King

Fri 7/18

5:14 pm-1:45 am

1 stop8h 31m

$174

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 8/17

8:05 pm-4:29 pm

1 stop20h 24m

Saint Thomas Island Cyril E King

Mon 8/25

2:43 pm-11:29 pm

1 stop8h 46m

$209

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 7/19

7:05 pm-12:30 pm

1 stop17h 25m

Saint Thomas Island Cyril E King

Sat 7/26

4:05 pm-11:21 pm

1 stop7h 16m

$250

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 7/27

8:05 pm-4:29 pm

1 stop20h 24m

$67

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 7/22

5:21 pm-9:48 am

1 stop16h 27m

$145

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 7/12

7:05 pm-1:30 pm

2 stops18h 25m

$281

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 7/12

9:14 am-1:09 pm

Nonstop3h 55m

$488

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Fri 7/11

3:39 pm-2:54 pm

3 stops23h 15m

$669

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 June 27, 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 33 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, September is the cheapest month in which you can book a flight from Philadelphia to Saint Thomas Island (average of $433). Flying from Philadelphia 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 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 July 3, 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 51% 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 July 3, 2025.
Read through reviews of airlines operating flights from Philadelphia to Saint Thomas Island, such as United Airlines, American Airlines, and Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,845 reviews

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,845 reviews
United Airlines
7.4
Good
8,845 reviews

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,845 reviews

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Spirit Airlines
6.3
Okay
8,094 reviews
United Airlines
7.4
Good
8,845 reviews

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Frontier
5.9
Fair
3,284 reviews
United Airlines
7.4
Good
8,845 reviews

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 $174 on this airline. An additional option worth looking into is Spirit Airlines, starting at $250. Frontier is currently priced 69% 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?

    $67 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 $145 and $488, 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: Qatar Airways (100%), American Airlines (67%), Alaska Airlines( 50%).

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

    On average you can expect to pay $1,318 for a flight from Philadelphia to Saint Thomas Island. The cheapest flight overall is $570 while the most popular route, (Philadelphia - Saint Thomas Island Cyril E King) is currently priced at $224.

  • 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, September is the cheapest month in which you can book a flight from Philadelphia to Saint Thomas Island (average of $433). Flying from Philadelphia 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia 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.
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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$174FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$223Average$358FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$429Average$660FlexibilityNo cancel feeOn-time71%
DeltaCheapest$462Average$724FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$493Average$752FlexibilityNo cancel feeOn-time69%

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