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Cheap flights from Philadelphia to Saint Thomas Island from $124

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Saint Thomas Island departing on 1/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Spirit Airlines Logo
8:05 pm - 12:28 pmPHL-STT
15h 23m1 stop
Spirit Airlines Logo
1:33 pm - 12:32 amSTT-PHL
11h 59m1 stop
$252Spirit Airlines
Find Deal
Sun, Jan 25 - Thu, Jan 29
Spirit Airlines Logo
5:25 am - 12:55 pmPHL-STT
6h 30m1 stop
Spirit Airlines Logo
3:54 pm - 11:34 pmSTT-PHL
8h 40m1 stop
$263Spirit Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
Spirit Airlines Logo
5:25 am - 12:55 pmPHL-STT
6h 30m1 stop
Spirit Airlines Logo
2:00 pm - 11:46 pmSTT-PHL
10h 46m1 stop
$267Spirit Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Spirit Airlines Logo
5:15 am - 3:11 pmPHL-STT
8h 56m2 stops
Spirit Airlines Logo
4:06 pm - 10:05 pmSTT-PHL
6h 59m1 stop
$269Spirit Airlines
Find Deal
Sun, Jan 25 - Thu, Jan 29
Spirit Airlines Logo
5:15 am - 3:11 pmPHL-STT
8h 56m2 stops
Spirit Airlines Logo
1:33 pm - 12:32 amSTT-PHL
11h 59m1 stop
$274Spirit Airlines
Find Deal
Sun, Jan 11 - Sun, Feb 8
Spirit Airlines Logo
6:00 am - 1:00 pmPHL-STT
6h 00m1 stop
Spirit Airlines Logo
2:00 pm - 11:46 pmSTT-PHL
10h 46m1 stop
$279Spirit Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
Spirit Airlines Logo
7:00 am - 3:11 pmPHL-STT
7h 11m1 stop
Spirit Airlines Logo
1:33 pm - 12:32 amSTT-PHL
11h 59m1 stop
$283Spirit Airlines
Find Deal
Fri, Jan 23 - Mon, Feb 2
Multiple Airlines Logo
6:05 pm - 11:31 amPHL-STT
16h 26m1 stop
Multiple Airlines Logo
3:23 pm - 8:37 amSTT-PHL
18h 14m1 stop
$287Multiple Airlines
Find Deal
Wed, Dec 31 - Wed, Jan 7
Multiple Airlines Logo
6:05 pm - 11:31 amPHL-STT
16h 26m1 stop
Multiple Airlines Logo
4:06 pm - 12:40 amSTT-PHL
9h 34m1 stop
$289Multiple Airlines
Find Deal
Wed, Dec 31 - Thu, Jan 8
Multiple Airlines Logo
4:35 pm - 12:55 pmPHL-STT
19h 20m1 stop
Multiple Airlines Logo
3:25 pm - 10:00 amSTT-PHL
19h 35m1 stop
$290Multiple Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3

Spirit Airlines flights from Philadelphia to Saint Thomas Island

Our best Spirit Airlines deals on Philadelphia to Saint Thomas Island flight tickets
Spirit Airlines
Jan 25
PHL8:05 pmPhiladelphia
15h 23m
1 stop
STT12:28 pmSaint Thomas Island Cyril E King
Jan 29
STT1:33 pmSaint Thomas Island Cyril E King
11h 59m
1 stop
PHL12:32 amPhiladelphia
$252
Find similar
Spirit Airlines
Dec 3
PHL5:25 amPhiladelphia
6h 30m
1 stop
STT12:55 pmSaint Thomas Island Cyril E King
Dec 6
STT3:54 pmSaint Thomas Island Cyril E King
8h 40m
1 stop
PHL11:34 pmPhiladelphia
$263
Find similar
Spirit Airlines
Nov 25
PHL5:25 amPhiladelphia
6h 30m
1 stop
STT12:55 pmSaint Thomas Island Cyril E King
Dec 2
STT2:00 pmSaint Thomas Island Cyril E King
10h 46m
1 stop
PHL11:46 pmPhiladelphia
$267
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Saint Thomas Island that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Philadelphia to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 1/25

8:05 pm-12:28 pm

1 stop15h 23m

Saint Thomas Island Cyril E King

Thu 1/29

1:33 pm-12:32 am

1 stop11h 59m

$252

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 12/3

5:25 am-12:55 pm

1 stop6h 30m

Saint Thomas Island Cyril E King

Sat 12/6

3:54 pm-11:34 pm

1 stop8h 40m

$263

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Tue 11/25

5:25 am-12:55 pm

1 stop6h 30m

Saint Thomas Island Cyril E King

Tue 12/2

2:00 pm-11:46 pm

1 stop10h 46m

$267

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 1/25

5:15 am-3:11 pm

2 stops8h 56m

Saint Thomas Island Cyril E King

Thu 1/29

4:06 pm-10:05 pm

1 stop6h 59m

$269

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 1/11

5:15 am-3:11 pm

2 stops8h 56m

Saint Thomas Island Cyril E King

Sun 2/8

1:33 pm-12:32 am

1 stop11h 59m

$274

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 11/15

6:00 am-1:00 pm

1 stop6h 00m

Saint Thomas Island Cyril E King

Sat 11/22

2:00 pm-11:46 pm

1 stop10h 46m

$279

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Fri 1/23

7:00 am-3:11 pm

1 stop7h 11m

Saint Thomas Island Cyril E King

Mon 2/2

1:33 pm-12:32 am

1 stop11h 59m

$283

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 12/31

6:05 pm-11:31 am

1 stop16h 26m

Saint Thomas Island Cyril E King

Wed 1/7

3:23 pm-8:37 am

1 stop18h 14m

$287

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 12/31

6:05 pm-11:31 am

1 stop16h 26m

Saint Thomas Island Cyril E King

Thu 1/8

4:06 pm-12:40 am

1 stop9h 34m

$289

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 11/26

4:35 pm-12:55 pm

1 stop19h 20m

Saint Thomas Island Cyril E King

Wed 12/3

3:25 pm-10:00 am

1 stop19h 35m

$290

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Philadelphia to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The month of November is another great option to travel to Saint Thomas Island, with average flight prices from Philadelphia averaging around $503.

What is the cheapest day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from Philadelphia is on a Sunday. momondo users have found tickets for Sunday departures for as low as $617. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Saint Thomas Island for around $928.

What is the cheapest time of day to depart on your flight to Saint Thomas Island?

The cheapest time of day to fly to Saint Thomas Island is in the evening when flights can be purchased for as low as $341. Flights to Saint Thomas Island are more costly in the morning, with an average ticket price of $726. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Philadelphia to Saint Thomas Island Cyril E King flight route?

Fly from Philadelphia to Saint Thomas Island Cyril E King for the best Philadelphia - Saint Thomas Island Cyril E King flight prices

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

You are more likely to see cheaper flights to Saint Thomas Island from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $588 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from Philadelphia for as low as $494 on momondo.

What cabin class options are available on Philadelphia to Saint Thomas Island Cyril E King flights?

There is only 1 cabin class available to choose from on Philadelphia to Saint Thomas Island Cyril E King flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Saint Thomas Island flights?

You could potentially save up to 37% on your flight if you consider stops on a Philadelphia to Saint Thomas Island flight.

How have Philadelphia to Saint Thomas Island flight prices changed over time?

As of October 2025, prices for Philadelphia to Saint Thomas Island flights are approximately 386% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Saint Thomas Island (PHL to STT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Saint Thomas Island

Best Price Found

$750

Fastest flight time

3h 53m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Saint Thomas Island

1 airport
The best flight deal from Philadelphia to Saint Thomas Island found on momondo in the last 72 hours is $750
The fastest flight from Philadelphia to Saint Thomas Island takes 3h 53m
Direct flights go from Philadelphia to Saint Thomas Island on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Saint Thomas Island: Saint Thomas Island Cyril E King (STT)
Search flight deals

  • How far is Philadelphia to Saint Thomas Island Cyril E King by plane?

    Philadelphia and Saint Thomas Island Cyril E King are 1611.8 mi apart from one another. Typically, this will take 6h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Philadelphia Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Philadelphia Airport to Saint Thomas Island Cyril E King Airport were last updated today.

  • How many operators does momondo search for flights from Philadelphia Airport to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Philadelphia Airport to Saint Thomas Island Cyril E King Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents required for your trip to Saint Thomas Island Cyril E King Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Thomas Island Cyril E King Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Philadelphia to Saint Thomas Island?

  • What is the most popular airline from Philadelphia to Saint Thomas Island?

Best airlines flying from Philadelphia to Saint Thomas Island

Compare and see reviews for airlines that fly from Philadelphia to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.8
3,122 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $228Free CancellationRating
6.3
8,116 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $438Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
DeltaPriceFrom $464Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $559Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Saint Thomas Island?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Saint Thomas Island. momondo saves you time and could save you money on your trip.

Can I find flights from Philadelphia to Saint Thomas Island with flexible booking policies on momondo?

All flight searches from Philadelphia to Saint Thomas Island on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Philadelphia to Saint Thomas Island?

Once all potential Philadelphia to Saint Thomas Island flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Philadelphia to Saint Thomas Island right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Philadelphia to Saint Thomas Island now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Thomas Island and let you know when they change.

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