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Saint Thomas Island

Cheap flights from Philadelphia (PHL) to Saint Thomas Island (SPB)

PHL — SPB
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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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 (SPB). 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 August 20, 2025.

Popular in

June

Cheapest in

October

Average price

$548
Highest demand for flights based on searches. 19% potential increase in price ($152 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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

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 $272). Flying from Philadelphia to Saint Thomas Island in March is currently the most expensive (average of $576). 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.

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 August 20, 2025.
Get a feel of what it's like to fly with Spirit Airlines from Philadelphia 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.
Spirit Airlines
6.3
Okay
8,039 reviews

Comfort

5.9

Overall

6.3

Boarding

6.6

Crew

7.0

Food

5.1

Entertainment

5.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

LAS - DTW

Was the most uncomfortable seat I have ever sat in on an airplane
Spirit Airlines
6.3
Okay
8,039 reviews
Spirit Airlines
6.3
Okay
8,039 reviews

Comfort

5.9

Overall

6.3

Boarding

6.6

Crew

7.0

Food

5.1

Entertainment

5.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

LAS - DTW

Was the most uncomfortable seat I have ever sat in on an airplane

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 is the cheapest airline to fly from Philadelphia to Saint Thomas Island round-trip?

    Our cheapest airline available from Philadelphia to Saint Thomas Island is Spirit Airlines. Our recent data shows that you can find tickets from as low as $265 on this airline. Spirit Airlines is currently priced 57% below the average price you’ll pay for this route.

  • 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 $272). Flying from Philadelphia to Saint Thomas Island in March is currently the most expensive (average of $576). 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.

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Alternative routes for Philadelphia to Saint Thomas Island

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Top airline flying from Philadelphia to Saint Thomas Island

Discover the top airline 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$265Average$425FlexibilityNo cancel feeOn-time65%

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