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£306 Cheap Flights from Philadelphia (PHL) to St. Thomas (STT)

View £306 flight on Sat, 22 Aug 2026Opens in a new window

Popular airlines from Philadelphia International Airport (PHL) to Cyril E. King Airport (STT)

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Cheap Flights from Philadelphia (PHL) to St. Thomas (STT)

Prices were available within the past 7 days and start at £306 for one-way flights and £611 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£611 Return, found 6 days ago
£611
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £611 found 6 days ago
JetBlue Airways
Wed, 19 Aug - Wed, 26 Aug
PHL
Philadelphia
STT
St. Thomas
£623 Return, found 6 days ago
£623
Return
found 6 days ago
Select JetBlue Airways flight, departing Wed, 19 Aug from Philadelphia to St. Thomas, returning Wed, 26 Aug, priced at £623 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£634 Return, found 6 days ago
£634
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £634 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£635 Return, found 6 days ago
£635
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £635 found 6 days ago
JetBlue Airways
Wed, 19 Aug - Wed, 26 Aug
PHL
Philadelphia
STT
St. Thomas
£646 Return, found 6 days ago
£646
Return
found 6 days ago
Select JetBlue Airways flight, departing Wed, 19 Aug from Philadelphia to St. Thomas, returning Wed, 26 Aug, priced at £646 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£649 Return, found 6 days ago
£649
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £649 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£661 Return, found 6 days ago
£661
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £661 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£664 Return, found 6 days ago
£664
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £664 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£676 Return, found 6 days ago
£676
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £676 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£679 Return, found 6 days ago
£679
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £679 found 6 days ago
JetBlue Airways
Mon, 17 Aug - Mon, 24 Aug
PHL
Philadelphia
STT
St. Thomas
£685 Return, found 6 days ago
£685
Return
found 6 days ago
Select JetBlue Airways flight, departing Mon, 17 Aug from Philadelphia to St. Thomas, returning Mon, 24 Aug, priced at £685 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£710 Return, found 6 days ago
£710
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £710 found 6 days ago
JetBlue Airways
Sun, 16 Aug - Sun, 23 Aug
PHL
Philadelphia
STT
St. Thomas
£711 Return, found 6 days ago
£711
Return
found 6 days ago
Select JetBlue Airways flight, departing Sun, 16 Aug from Philadelphia to St. Thomas, returning Sun, 23 Aug, priced at £711 found 6 days ago
JetBlue Airways
Sun, 16 Aug - Sun, 23 Aug
PHL
Philadelphia
STT
St. Thomas
£733 Return, found 6 days ago
£733
Return
found 6 days ago
Select JetBlue Airways flight, departing Sun, 16 Aug from Philadelphia to St. Thomas, returning Sun, 23 Aug, priced at £733 found 6 days ago
JetBlue Airways
Mon, 17 Aug - Mon, 24 Aug
PHL
Philadelphia
STT
St. Thomas
£736 Return, found 6 days ago
£736
Return
found 6 days ago
Select JetBlue Airways flight, departing Mon, 17 Aug from Philadelphia to St. Thomas, returning Mon, 24 Aug, priced at £736 found 6 days ago
JetBlue Airways
Mon, 17 Aug - Mon, 24 Aug
PHL
Philadelphia
STT
St. Thomas
£739 Return, found 6 days ago
£739
Return
found 6 days ago
Select JetBlue Airways flight, departing Mon, 17 Aug from Philadelphia to St. Thomas, returning Mon, 24 Aug, priced at £739 found 6 days ago
JetBlue Airways
Tue, 18 Aug - Tue, 25 Aug
PHL
Philadelphia
STT
St. Thomas
£744 Return, found 6 days ago
£744
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 18 Aug from Philadelphia to St. Thomas, returning Tue, 25 Aug, priced at £744 found 6 days ago

Alternative airports near St. Thomas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cyril E. King STT. Cheapest option available. Flights from £794
STT
Cyril E. King
Cheapest
Flights from £794

Frequently asked questions

How much does a flight from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) cost?
You can find one-way and return flights from PHL to STT with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when PHL to STT ticket fares go up or down.
What is the cheapest month to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
The cheapest months to fly from PHL to STT are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
Only one airline offers direct flights from Philadelphia Intl. (PHL) to Cyril E. King (STT). American Airlines operates 8 direct flights from PHL to STT every week.
What is the cheapest airline that flies from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
Spirit Airlines offers one of the cheapest connecting return flights with a layover in Fort Lauderdale - Hollywood Intl. (FLL), starting from around £117. King (STT), with tickets starting from around £348 for flights that can be booked for departure within the next year. American Airlines is one of the cheapest airlines offering nonstop return flights from Philadelphia Intl. (PHL) to Cyril E. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
To find a cheap flight from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
The best airline to fly with from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. American Airlines offers the most daily flights from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
There are approximately 37 connecting flights per day from Philadelphia International (PHL) to Cyril E. King (STT). Some common connection points include Fort Lauderdale - Hollywood International (FLL), Logan International (BOS), and O'Hare International (ORD).
What is the earliest flight from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
The earliest flight from Philadelphia International Airport (PHL) to Cyril E. King Airport (STT) typically departs around 5:00 AM. This service is offered by American Airlines. This is a seasonal service, active in April and May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
You'll typically find the most flights from Philadelphia International Airport (PHL) to Cyril E. King (STT) on a Saturday, with around 19 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, Spirit Airlines, and Delta. Looking at the week, Saturday offers notably more flight options compared to other days, making it a great day to consider for your journey.
What are the most popular departure times for flights from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
The most popular departure times for flights from Philadelphia Intl. (PHL) to Cyril E. King (STT) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Delta and Spirit Airlines, offer flights during this window. Many travellers prefer this time as it allows for an early start to your journey, getting you to your destination with plenty of time to enjoy the day.
How long does it take to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
A direct flight from Philadelphia International Airport (PHL) to Cyril E. King (STT) typically takes around 4 hours, covering a distance of approximately 2,591 kilometers. If you opt for a flight with one stop, your journey will usually take longer, around 7 hours 18 minutes. Flights with two or more stops can extend your travel time significantly, often taking about 11 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
Yes, you can fly business class or first class between PHL and STT. You can fly business class with Delta and American Airlines.First class cabins are available on Spirit Airlines, Delta, and United.
How do I earn miles on a Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) flight with Expedia?
It's easy to earn miles on a Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Thomas (STT) from Philadelphia, PA (PHL)?
If you're planning to travel to St. Thomas from Philadelphia Intl. (PHL), you can fly directly into Cyril E. King (STT). Some flights may connect through major hubs like Logan Intl. (BOS), O'Hare Intl. (ORD), or Fort Lauderdale - Hollywood Intl. (FLL) before reaching St. Thomas. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) at the last minute?
Typically, booking a last minute flight from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) flight and hotel package?
Securing a Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King)?
If you booked your Philadelphia, PA (PHL-Philadelphia Intl.) to St. Thomas (STT-Cyril E. King) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Cyril E. King
Return price
£611
Distance
2575 km
Average flight time
3 hours 4 mins

Book with confidence

Compare flights from Philadelphia to St. Thomas easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Philadelphia to St. Thomas. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Cyril E. King in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Philadelphia Intl. to Cyril E. King.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Philadelphia Intl. (PHL) to Cyril E. King (STT)

The easiest way to view the best deals on flights from Philadelphia to St. Thomas today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Philadelphia Intl. to Cyril E. King start at just £611 and range up to £744.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Philadelphia and St. Thomas
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Philadelphia to St. Thomas flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Philadelphia Intl. to Cyril E. King for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Philadelphia to St. Thomas easily and book with confidence

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*Available to Expedia members.