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Saint Thomas Island

$236+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STT
Jun 20 — Jun 271
Sat 6/20
Sat 6/27
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 November or July, booked 20 days in advance, depart on a Sunday or Thursday and return on a Monday

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 May 21, 2026.

This FlightHub deal was found by Cheapflights users on 5/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:55 pm
PHL
-
STT
1 stop17h 08m
JetBlue
Tue 8/112:58 pm
STT
-
PHL
2 stops16h 40m
JetBlue
Deal found 5/17$457
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Mon 7/209:20 am
PHL
-
STT
1 stop28h 43m
JetBlue
Tue 7/282:53 pm
STT
-
PHL
2 stops17h 37m
JetBlue
Deal found 5/19$465
This FlightHub deal was found by Cheapflights users on 5/20. 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.
Thu 7/98:50 am
PHL
-
STT
1 stop29h 09m
JetBlue
Tue 7/142:53 pm
STT
-
PHL
2 stops17h 37m
JetBlue
Deal found 5/20$467
This FlightHub deal was found by Cheapflights users on 5/18. 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.
Thu 7/28:55 pm
PHL
-
STT
1 stop17h 28m
JetBlue
Tue 7/72:58 pm
STT
-
PHL
2 stops16h 40m
JetBlue
Deal found 5/18$469
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Mon 6/228:55 pm
PHL
-
STT
1 stop17h 08m
JetBlue
Tue 6/302:58 pm
STT
-
PHL
2 stops16h 40m
JetBlue
Deal found 5/19$471
This FlightHub deal was found by Cheapflights users on 5/20. 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.
Fri 8/2812:04 pm
PHL
-
STT
1 stop27h 13m
JetBlue
Fri 9/42:58 pm
STT
-
PHL
2 stops16h 40m
JetBlue
Deal found 5/20$476
This FlightHub deal was found by Cheapflights users on 5/18. 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.
Mon 6/158:55 pm
PHL
-
STT
1 stop17h 08m
JetBlue
Fri 6/193:18 pm
STT
-
PHL
2 stops16h 20m
JetBlue
Deal found 5/18$478
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Tue 6/911:18 am
PHL
-
STT
1 stop27h 24m
JetBlue
Tue 6/162:58 pm
STT
-
PHL
2 stops16h 40m
JetBlue
Deal found 5/19$480
This FlightHub deal was found by Cheapflights users on 5/20. 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.
Thu 8/2712:04 pm
PHL
-
STT
1 stop27h 28m
JetBlue
Sat 8/292:00 pm
STT
-
PHL
2 stops17h 38m
JetBlue
Deal found 5/20$484
This FlightHub deal was found by Cheapflights users on 5/18. 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.
Fri 7/1712:04 pm
PHL
-
STT
1 stop27h 13m
JetBlue
Fri 7/242:58 pm
STT
-
PHL
2 stops16h 40m
JetBlue
Deal found 5/18$490
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Sun 7/1912:04 pm
PHL
-
STT
1 stop27h 28m
JetBlue
Tue 7/282:58 pm
STT
-
PHL
2 stops16h 40m
JetBlue
Deal found 5/19$496

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 May 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$457
(FlightHub)

One-way from

$236
(Priceline)

Popular in

December

Cheapest in

November

Average price

$851

Good round-trip deal

$841 or less

Good one-way deal

$418 or less
Provider with most accurate pricing for Philadelphia-Saint Thomas Island Cyril E King flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Saint Thomas Island Cyril E King flights.
Search Deals
From Philadelphia to Saint Thomas Island Cyril E King
Search Deals
One-way flight from Philadelphia to Saint Thomas Island Cyril E King
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 21, 2026.
Use the filters below to find and compare flights from Philadelphia to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 9/13

8:50 pm-1:50 pm

2 stops17h 00m

Saint Thomas Island Cyril E King

Sun 9/20

2:10 pm-11:30 pm

1 stop9h 20m

$646

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Mon 8/17

6:15 am-1:34 pm

1 stop7h 19m

Saint Thomas Island Cyril E King

Thu 8/27

2:49 pm-1:12 am

1 stop10h 23m

$650

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 8/9

5:15 am-3:20 pm

1 stop10h 05m

Saint Thomas Island Cyril E King

Thu 8/27

2:49 pm-1:12 am

1 stop10h 23m

$650

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 8/18

5:15 am-1:34 pm

1 stop8h 19m

Saint Thomas Island Cyril E King

Sat 8/22

4:13 pm-1:12 am

1 stop8h 59m

$685

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 8/4

5:15 am-3:20 pm

1 stop10h 05m

Saint Thomas Island Cyril E King

Mon 8/24

2:49 pm-1:12 am

1 stop10h 23m

$685

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 8/15

6:00 am-1:34 pm

1 stop7h 34m

Saint Thomas Island Cyril E King

Thu 8/27

2:49 pm-1:12 am

1 stop10h 23m

$685

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 8/15

6:00 am-1:34 pm

1 stop7h 34m

Saint Thomas Island Cyril E King

Sat 8/22

2:49 pm-9:46 pm

1 stop6h 57m

$720

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 7/21

6:15 am-3:43 pm

1 stop9h 28m

Saint Thomas Island Cyril E King

Mon 7/27

4:45 pm-11:44 pm

1 stop6h 59m

$740
Quickest round-trip

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Mon 7/27

6:10 am-12:20 pm

1 stop6h 10m

Saint Thomas Island Cyril E King

Sat 8/1

4:45 pm-11:44 pm

1 stop6h 59m

$770

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 11/7

6:10 am-4:18 pm

1 stop9h 08m

Saint Thomas Island Cyril E King

Sat 11/14

1:02 pm-11:07 pm

2 stops11h 05m

$776

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

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 19 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, November is the cheapest month in which you can book a flight from Philadelphia to Saint Thomas Island (average of $536). Flying from Philadelphia to Saint Thomas Island in December is currently the most expensive (average of $902). 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 May 21, 2026.

When flying from Philadelphia to Saint Thomas Island, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Philadelphia to Saint Thomas Island?

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 May 21, 2026.
Read through reviews of airlines operating flights from Philadelphia to Saint Thomas Island, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,451 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,451 reviews
Delta
7.9
Good
8,451 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,748 reviews
Delta
7.9
Good
8,451 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,641 reviews
Delta
7.9
Good
8,451 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Spirit Airlines
6.2
Okay
8,609 reviews
Delta
7.9
Good
8,451 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Frontier
5.7
Fair
2,945 reviews
Delta
7.9
Good
8,451 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 popular is this Philadelphia to Saint Thomas Island flight route?

    This flight path from Philadelphia to Saint Thomas Island Cyril E King was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 7h 19m. Fly via Southwest or Delta to get the fastest option. The distance between Philadelphia and Saint Thomas Island is about 1608 mi. This flight may include one or multiple stops.

  • 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 $172 on this airline. Additional options worth looking into are Spirit Airlines and JetBlue, starting at $252 and $284 round-trip. Frontier is currently priced 74% below the average price you’ll pay for this route.

  • 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: Alaska Airlines (88%), American Airlines (57%), Qatar Airways( 0%).

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

    On average you can expect to pay $745 for a flight from Philadelphia to Saint Thomas Island. The cheapest flight overall is $418 while the most popular route, (Philadelphia - Saint Thomas Island Cyril E King) is currently priced at $457.

  • 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, November is the cheapest month in which you can book a flight from Philadelphia to Saint Thomas Island (average of $536). Flying from Philadelphia to Saint Thomas Island in December is currently the most expensive (average of $902). 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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Top 6 airlines flying from Philadelphia to Saint Thomas Island

Discover the top 6 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 May 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$172Average$227FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$252Average$396FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$284Average$541FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$559Average$781FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$570Average$819FlexibilityNo cancel feeOn-time71%
DeltaCheapest$584Average$785FlexibilityNo cancel feeOn-timeN/A

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