PHL - STT

$144 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 4/25. 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
$299
Typical prices: $869-$564
Spirit Airlines
Mon 4/27Tue 4/28
PHL - STT • 1 stop
Cheapest non-stop
$701
Typical prices: $901-$831
American Airlines
Thu 5/7Mon 5/11
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 05m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $230 (round-trip)
Shortest trip • 6h 17m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
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Start a new search
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
Booking Insights
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

Mon, Apr 27 - Tue, Apr 28
Multiple Airlines Logo
5:45 am - 4:15 pm
PHL
-
STT
10h 30m
1 stop
Multiple Airlines Logo
12:25 pm - 8:40 pm
STT
-
PHL
8h 15m
1 stop
$299Multiple Airlines
Wed, Aug 19 - Thu, Aug 27
Spirit Airlines Logo
5:45 am - 2:41 pm
PHL
-
STT
8h 56m
1 stop
Spirit Airlines Logo
3:46 pm - 11:40 pm
STT
-
PHL
7h 54m
1 stop
$302Spirit Airlines
Sun, Apr 26 - Sat, May 2
Multiple Airlines Logo
5:32 pm - 11:30 am
PHL
-
STT
17h 58m
1 stop
Multiple Airlines Logo
12:25 pm - 11:59 pm
STT
-
PHL
11h 34m
1 stop
$304Multiple Airlines
Sat, Apr 25 - Fri, May 1
Multiple Airlines Logo
5:32 pm - 11:30 am
PHL
-
STT
17h 58m
1 stop
Multiple Airlines Logo
12:25 pm - 11:07 pm
STT
-
PHL
10h 42m
1 stop
$305Multiple Airlines
Sun, Apr 26 - Fri, May 1
Multiple Airlines Logo
5:32 pm - 11:30 am
PHL
-
STT
17h 58m
1 stop
Multiple Airlines Logo
12:25 pm - 11:07 pm
STT
-
PHL
10h 42m
1 stop
$306Multiple Airlines
Sat, Apr 25 - Wed, Apr 29
Multiple Airlines Logo
5:32 pm - 11:30 am
PHL
-
STT
17h 58m
1 stop
Multiple Airlines Logo
12:25 pm - 8:40 pm
STT
-
PHL
8h 15m
1 stop
$307Multiple Airlines
Wed, Apr 29 - Sat, May 2
Multiple Airlines Logo
6:12 pm - 11:30 am
PHL
-
STT
17h 18m
1 stop
Multiple Airlines Logo
12:25 pm - 11:59 pm
STT
-
PHL
11h 34m
1 stop
$308Multiple Airlines
Tue, Apr 28 - Sat, May 2
Multiple Airlines Logo
5:45 am - 4:15 pm
PHL
-
STT
10h 30m
1 stop
Multiple Airlines Logo
12:25 pm - 11:59 pm
STT
-
PHL
11h 34m
1 stop
$309Multiple Airlines
Tue, Apr 21 - Thu, Apr 23
Multiple Airlines Logo
1:30 pm - 11:30 am
PHL
-
STT
22h 00m
1 stop
Multiple Airlines Logo
12:25 pm - 12:20 am
STT
-
PHL
11h 55m
1 stop
$310Multiple Airlines
Tue, Apr 21 - Fri, Apr 24
Multiple Airlines Logo
1:30 pm - 11:30 am
PHL
-
STT
22h 00m
1 stop
Multiple Airlines Logo
12:25 pm - 10:59 pm
STT
-
PHL
10h 34m
1 stop
$311Multiple 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.

How much is a round-trip flight from Philadelphia to Saint Thomas Island?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to Saint Thomas Island departing in April.

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 $464 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $910 and $819 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 3 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 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$144
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 14% 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 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 $144 for a one-way ticket and $299 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Philadelphia and Saint Thomas Island, with SkyTeam 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 $692 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 $825 or less round-trip.

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 8400 reviews
7.9Comfort
7.2Food
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

The flight was smooth, the crew was great but the plane was quite old

8.0 ExcellentDimitrina, Apr 2026
BOS - DCA
Read more Delta reviews

The flight was smooth, the crew was great but the plane was quite old

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

It's a long flight and I would have liked better snacks between lunch and the arrival meal. It's fine to have fruit and nuts but I really don't like ramen because it's salty junk soup. I'd suggest sandwiches. They're not expensive nor are they hard to store for a long flight. The FA's had a couple of big services and they were super busy preparing, executing and then cleaning up. Then they disappeared.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

All good flight was 35 minutes early when arriving in Edinburgh

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

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!

They didn’t put my luggage on my transfer so I had to spend the night in Detroit. They said my luggage would be here in the morning and they’re still searching for it. It did not arrive apparently.

The attendant at the gate was not helpful at all and she was rude when we asked why the flight was delayed.

Great just wish they always had WiFi on every flight couldn’t even purchase it

They cancelled my flight with no reason affecting my travel plans and delaying it 24 hours.

a weekend long saga that ultimately led to a canceled trip. totally unreliable.

Everything was horrible. They delayed my flight so I missed my connection flight and I lost my bags. I had to go to the same workers multiple times asking the same questions because everyone kept giving me different answers. One person closed down customer service because he wanted to go on lunch so there was like 30 people just waiting for hours because no one would relieve him.

Landing was technically perfect. What I didn't like is the pricey internet. Both flights with excellent crews. I'm 6 feet 210 pounds and could easily fit in the chair.

Paid for WiFi and the connection was basically nonexistent. Was pleasantly surprised with everything else. Staff was great. Boarding was easy. Plane was clean. Overall, a very pleasant experience

Long long delay, no AC while delayed, gate changes, just for the most uncomfortable flight of your life.

Everything was smooth sailing. Great crew, easy flight and was surprised with an upgraded seat. Thank you all!

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

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.

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

Information on your arrival and departure airports