PHL - STT

$126 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 4/26. 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
$281
Typical prices: $827-$489
Spirit Airlines
Thu 4/9Tue 4/14
PHL - STT • 1 stop
Cheapest non-stop
$641
Typical prices: $901-$831
American Airlines
Thu 5/14Mon 5/18
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
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $244 (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
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
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

Thu, Apr 9 - Tue, Apr 14
Spirit Airlines Logo
8:18 am - 3:28 pm
PHL
-
STT
7h 10m
1 stop
Spirit Airlines Logo
4:35 pm - 11:10 am
STT
-
PHL
18h 35m
1 stop
$281Spirit Airlines
Mon, Apr 13 - Thu, Apr 16
Multiple Airlines Logo
6:48 am - 3:28 pm
PHL
-
STT
8h 40m
1 stop
Multiple Airlines Logo
12:25 pm - 11:10 pm
STT
-
PHL
10h 45m
1 stop
$283Multiple 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
5:10 pm - 11:37 pm
STT
-
PHL
6h 27m
1 stop
$287Spirit Airlines
Thu, Apr 16 - Sat, Apr 18
Multiple Airlines Logo
10:38 pm - 9:54 am
PHL
-
STT
11h 16m
1 stop
Multiple Airlines Logo
10:49 am - 7:57 pm
STT
-
PHL
9h 08m
1 stop
$289Multiple 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
$291Spirit Airlines
Fri, Apr 10 - Tue, Apr 14
Spirit Airlines Logo
8:53 pm - 1:26 pm
PHL
-
STT
16h 33m
1 stop
Spirit Airlines Logo
4:35 pm - 11:56 pm
STT
-
PHL
7h 21m
1 stop
$292Spirit 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
$293Multiple Airlines
Thu, May 7 - Tue, May 12
Spirit Airlines Logo
6:12 pm - 1:09 pm
PHL
-
STT
18h 57m
1 stop
Spirit Airlines Logo
2:04 pm - 11:37 pm
STT
-
PHL
9h 33m
1 stop
$298Spirit Airlines
Mon, Apr 13 - Thu, Apr 16
Multiple Airlines Logo
5:00 am - 1:26 pm
PHL
-
STT
8h 26m
1 stop
Multiple Airlines Logo
10:49 am - 12:54 am
STT
-
PHL
14h 05m
2 stops
$299Multiple Airlines
Sat, May 2 - Fri, May 8
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
$300Spirit 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 $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$126
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 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 $126 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 $831 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 8338 reviews
7.8Entertainment
7.2Food
8.1Boarding
8.5Crew
7.9Comfort
Airline reviews

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

10.0 ExcellentCharlean, Mar 2026
LAS - ATL
Read more Delta reviews

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

Excellent service, I love the soft blush pink mood lighting on the 767-400ER during meal service. The overhead gasper vents on the 767-400ER were also very strong with a lot of airflow to keep me comfortable on my flight.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

I am still at the Airport! Delayed Delayed and Delyaed

I took seat 15A in anticipation of window seat, there is no window.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

Awful. No counter attendants. No dinner offered due to delays.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

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!

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

We had to take a bus to the plane with a old woman and carry on bags, and at landing at the airport we have to wait one hour seating on the plane waiting for a gate. We came back from Australia Bussines class Quantas 16 hours traveling, then wait in Dallas 7 hours for connection...honestly waiting 1 hour more at the plane was the worst part.

Flight delayed twice (not Spirit fault) No food served* No entertainment * *in response to my choices in the rating. None was provided so couldn’t rate properly

Delayed over two hours. Only knew about a 30 minute delay in advance

Poor service but I guess that’s what you get for picking cheap flight. Overacted with all extra up-charge fees, so annoying.

They canceled both the flight to Myrtle beach and the return flight. They are an awful airline and they ruined my trip. I will never book with Spirit again.

The flight was a big joke very uncomfortable I had a horrible experience and I will never fly with them again everything about the flight was bogus and I’m not happy with it at all this experience makes me not want to fly ever again

Pricing, boarding time communication, over priced baggage and overall service is lacking, seating unconfortable

Flight attendant was all so sweet and pilot got us to our destination safely and on time

They cancelled our flight. 2 hours before we were supposed to take off and offered us nothing! We got our money back and that was it. No other flight to get to our cruise no working with another airline or with us to get there. Terrible customer service, no apology.

we boarded the plane and then sat for OVER AN HOUR on it, first waiting for fuel and then the crew timed out. the flight kept getting delayed longer and longer, a 9:30pm flight is still on the ground at 1:15am.

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.

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!

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

Information on your arrival and departure airports