PHL - STT

$108 Find Cheap Flights from Philadelphia to Saint Thomas Island

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Saint Thomas Island departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Saint Thomas Island

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Saint Thomas Island.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Saint Thomas Island.
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Everything you should know

Cheapest round-trip
$282
Overall average: $651
Multiple Airlines
Thu 4/9Tue 4/14
PHL - STT • 1 stop
Cheapest non-stop
$641
Typical prices: $620-$979
American Airlines
Fri 5/8Fri 5/15
PHL - STT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
PHL offers Philly-focused dining like cheesesteaks.
At STT, use USVI-licensed taxis and confirm rates.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with American Airlines. Average duration is 4h 00m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $243 (round-trip)
Shortest trip • 6h 15m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Saint Thomas Island!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Philadelphia to Saint Thomas Island (PHL-STT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Saint Thomas Island that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Saint Thomas Island

Thu, Apr 9 - Tue, Apr 14
Multiple Airlines Logo
5:32 pm - 3:28 pm
PHL
-
STT
21h 56m
1 stop
Multiple Airlines Logo
4:35 pm - 11:10 am
STT
-
PHL
18h 35m
1 stop
$282Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Spirit Airlines Logo
6:08 pm - 3:28 pm
PHL
-
STT
21h 20m
1 stop
Spirit Airlines Logo
12:25 pm - 11:37 pm
STT
-
PHL
11h 12m
1 stop
$288Spirit Airlines
Fri, Apr 10 - Fri, Apr 17
Spirit Airlines Logo
8:18 am - 3:28 pm
PHL
-
STT
7h 10m
1 stop
Spirit Airlines Logo
12:25 pm - 11:37 pm
STT
-
PHL
11h 12m
1 stop
$290Spirit Airlines
Mon, Apr 6 - Tue, Apr 14
Multiple Airlines Logo
5:32 pm - 3:28 pm
PHL
-
STT
21h 56m
1 stop
Multiple Airlines Logo
4:35 pm - 11:10 am
STT
-
PHL
18h 35m
1 stop
$294Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
Multiple Airlines Logo
6:08 pm - 1:26 pm
PHL
-
STT
19h 18m
2 stops
Multiple Airlines Logo
12:25 pm - 11:10 pm
STT
-
PHL
10h 45m
1 stop
$296Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
Spirit Airlines Logo
8:18 am - 3:28 pm
PHL
-
STT
7h 10m
1 stop
Spirit Airlines Logo
5:10 pm - 11:37 pm
STT
-
PHL
6h 27m
1 stop
$298Spirit Airlines
Tue, Apr 7 - Tue, Apr 14
Spirit Airlines Logo
8:53 pm - 3:28 pm
PHL
-
STT
18h 35m
2 stops
Spirit Airlines Logo
2:36 pm - 11:10 am
STT
-
PHL
20h 34m
2 stops
$300Spirit Airlines
Fri, Apr 10 - Fri, Apr 17
Spirit Airlines Logo
8:53 pm - 3:28 pm
PHL
-
STT
18h 35m
2 stops
Spirit Airlines Logo
5:10 pm - 11:37 pm
STT
-
PHL
6h 27m
1 stop
$301Spirit Airlines
Sun, Apr 12 - Sun, Apr 19
Spirit Airlines Logo
6:48 am - 3:28 pm
PHL
-
STT
8h 40m
1 stop
Spirit Airlines Logo
5:10 pm - 10:54 am
STT
-
PHL
17h 44m
1 stop
$302Spirit Airlines
Mon, Apr 20 - Mon, Apr 27
Spirit Airlines Logo
6:12 pm - 11:30 am
PHL
-
STT
17h 18m
1 stop
Spirit Airlines Logo
5:10 pm - 9:49 am
STT
-
PHL
16h 39m
1 stop
$304Spirit Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Saint Thomas Island flights

Get data-powered insights and trends into flights from Philadelphia to Saint Thomas Island to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Philadelphia to Saint Thomas Island?

The average price of all round-trip flights from Philadelphia to Saint Thomas Island clicked on KAYAK for each day over the last 12 months.

For Philadelphia to Saint Thomas Island, Sunday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Saint Thomas Island back to Philadelphia, the best deals are generally found on Tuesday, with Saturday being the most expensive.

What is the cheapest month to fly from Philadelphia to Saint Thomas Island?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Saint Thomas Island, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Saint Thomas Island is July, where tickets cost $505 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $943 and $781 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Saint Thomas Island, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Saint Thomas Island, you should book around 2 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia to Saint Thomas Island

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on STT

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Harriet Baskas

Harriet Baskas

Expert on PHL

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonSeptember
Cheapest flight$108
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Philadelphia to Saint Thomas Island

When to book flights from Philadelphia to Saint Thomas Island

Are your dates flexible? Find out the best times to travel from Philadelphia to Saint Thomas Island based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Saint Thomas Island

  • What transit options are available from Cyril E. King Airport (STT) to the city center?

    The VITRAN public bus system operates from STT to various destinations on the island. Bus route 10 goes to the city center and typically takes around 15-20 minutes. Taxis are also readily available outside the airport terminal. The duration of the journey to the city center is approximately 10-15 minutes, depending on traffic conditions.

  • What is the luggage allowance on flights from Philadelphia to Saint Thomas Island with United Airlines?

    For passengers traveling on a Basic Economy fare, only one personal item is allowed on board, and it must fit under the seat in front of you. No carry-on luggage is permitted with this ticket type. For passengers traveling on a standard economy fare, one personal item and one carry-on item are allowed on board.

  • What seat selection options are available on flights from Philadelphia to Saint Thomas Island with American Airlines?

    American Airlines offers a variety of seat selection options on their flights from Philadelphia to Saint Thomas Island. In Basic Economy, you will not be able to select a seat in advance but in Main Cabin, you will be allowed to select a seat when you book your flight or at any time up until check-in. Passengers also have the option to choose preferred seats that offer additional legroom for an additional fee.

  • Which nearby cities are served by Cyril E. King Airport (STT)?

    Cyril E. King Airport (STT) is located on the island of St. Thomas in the United States Virgin Islands. It serves several nearby cities in addition to Saint Thomas Island. These cities include Charlotte Amalie, Red Hook, Smith Bay, Frenchtown, Cruz Bay, Road Town, and East End.

  • What is the cheapest flight from Philadelphia to Saint Thomas Island?

    In the last 3 days, the lowest price for a flight from Philadelphia to Saint Thomas Island was $108 for a one-way ticket and $281 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Saint Thomas Island?

    Yes

  • Which airports will I be using when flying from Philadelphia to Saint Thomas Island?

    Philadelphia and Saint Thomas Island are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at Saint Thomas Island Cyril E King.

  • Which airlines offer Wi-Fi service onboard planes from Philadelphia to Saint Thomas Island?

    American Airlines, Delta, and JetBlue offer inflight Wi-Fi service on the Philadelphia to Saint Thomas Island flight route.

  • Which aircraft models fly most regularly from Philadelphia to Saint Thomas Island?

    The Airbus A319 is the aircraft model that flies most regularly on the Philadelphia to Saint Thomas Island flight route.

  • Which airline alliances offer flights from Philadelphia to Saint Thomas Island?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Philadelphia and Saint Thomas Island, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Philadelphia to Saint Thomas Island?

    There are nonstop flights from Philadelphia to Saint Thomas Island on a daily basis.

  • Which is the best airline for flights from Philadelphia to Saint Thomas Island, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Saint Thomas Island are Delta and United Airlines. With an average price for the route of $724 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $684 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Philadelphia to Saint Thomas Island?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Saint Thomas Island.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Saint Thomas Island?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint Thomas Island from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Saint Thomas Island?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint Thomas Island with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and STT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Saint Thomas Island?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint Thomas Island from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Philadelphia to Saint Thomas Island

  • Looking for a cheap flight? 25% of our users found flights on this route for $761 or less round-trip.
  • Passengers can bring pets on Frontier flights from Philadelphia (PHL) to Saint Thomas Island (STT). Only small pets are allowed and there is a fee to bring your pet onboard. You will also need to make a reservation for your pet in advance, as there are restrictions on the number of pets allowed on each flight.
  • Delta, United, and American Airlines allow strollers and infant seats to be gate-checked free of charge for flights from Philadelphia (PHL) to Saint Thomas Island (STT). These airlines also offer an unaccompanied minor service for children ages 5 to 14 years old.
  • Flights from Philadelphia (PHL) to Saint Thomas Island (STT) generally involve stops which can be in various cities, depending on the airline chosen. Some common layovers for these flights include Newark (EWR), Orlando (MCO), Fort Lauderdale (FLL), San Juan Luiz (SJU), and Tampa (TPA).
  • Spirit Airlines provides services for people with reduced mobility, including wheelchair assistance at the airport and boarding the aircraft for flights from Philadelphia to Saint Thomas Island. Passengers who require assistance can request it when booking their flight or by calling Spirit Airlines' Special Services department at least 48 hours before their flight.
  • Delta offers several fare classes for flights from Philadelphia to Saint Thomas Island, and each fare class has a different upgrade eligibility for seat upgrades. Upgrades for Main Cabin passengers are based on availability and are available only through Delta's upgrade bidding program called “Delta Upgrade with Miles.” If you have enough Delta SkyMiles, you can use them to bid for upgrades to the premium cabin.

Prefer to fly direct from Philadelphia to Saint Thomas Island?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Philadelphia to Saint Thomas Island Cyril E King.
Find which airlines fly direct from Philadelphia Airport to Saint Thomas Island Cyril E King Airport, which days they fly and book direct flights.

Direct departures

Philadelphia to Saint Thomas Island Cyril E King

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Saint Thomas Island Cyril E King to Philadelphia

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top 5 airlines serving from Philadelphia to Saint Thomas Island

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Saint Thomas Island. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Saint Thomas Island? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8288 reviews
7.8Entertainment
8.5Crew
8.1Boarding
7.2Food
7.9Comfort
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

Broke my luggage and I can't get a resolution yet.

My flight to London from Philadelphia was cancelled due to weather.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

My flight was ultimately cancelled but the lack of updates and professionalism from the crew leading up to the cancellation announcement was frustrating for all passengers.

Delay due to personnel issues on Spirit’s end. Original departure time 9:30pm. Took off at 2:15am. Lost an entire night’s sleep bc Spirit couldn’t get a crew together. Very poor.

Sadly the flight was delayed by 4 hours due to the weather snd sir traffic control staffing. Otherwise the crew was amazing and the flight was perfect.

If there are delays, it takes less than a minute for a Spirit employee to make an announcement. It’s very simple.

I’m still waiting to get on the flight. No one knows what’s happening. The passengers have gotten no updates. We have been up all night and waiting at the airport. This is no way to operate and we should be refunded for this lack of respect for their passengers.

Not enough crew members so we had to wait for more to arrive and they could never give us updates timing. Not even water for free on board. Bare bones airplane- there wasn’t even a seat back pocket to put things into. Spirit is cheap for a reason but this was dismal

The plane was clean and crew was nice. Can’t speak on food as I did not have any

Flight was delayed, then undelayed, then delayed again. Gate was changed to the other side of the airport. Horrible seats with no screens. Spirit os truly awful, even for a budget option.

flight delayed because of poor staffing and organization - confusion from gate agents and flight attendant supervisors scheduling a missing flight attendant. flight delay 1 hr 30 min

I liked the quickness of the boarding process. Things were run smoothly and the staff was very professional. The overall experience was great.

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

Everything you need to know for your flight from Philadelphia to Saint Thomas Island

Information on your arrival and departure airports