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Cheap flights from Philadelphia to Saint Thomas Island from $247

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 9/17. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
12:00 pm - 2:41 pm
PHL
-
STT
26h 41m
1 stop
JetBlue Logo
3:40 pm - 11:05 am
STT
-
PHL
19h 25m
1 stop
$466JetBlue
Sat, Sep 26 - Sat, Oct 3
JetBlue Logo
12:57 pm - 2:55 pm
PHL
-
STT
25h 58m
1 stop
JetBlue Logo
1:53 pm - 8:22 am
STT
-
PHL
18h 29m
2 stops
$468JetBlue
Wed, Aug 12 - Tue, Aug 18
JetBlue Logo
12:00 pm - 2:41 pm
PHL
-
STT
26h 41m
1 stop
JetBlue Logo
3:40 pm - 11:05 am
STT
-
PHL
19h 25m
1 stop
$476JetBlue
Wed, Sep 30 - Sun, Oct 4
JetBlue Logo
12:38 pm - 2:55 pm
PHL
-
STT
26h 17m
1 stop
JetBlue Logo
2:49 pm - 8:08 am
STT
-
PHL
17h 19m
2 stops
$478JetBlue
Mon, Aug 24 - Fri, Aug 28
JetBlue Logo
12:38 pm - 2:55 pm
PHL
-
STT
26h 17m
1 stop
JetBlue Logo
3:45 pm - 11:46 am
STT
-
PHL
20h 01m
1 stop
$481JetBlue
Sat, Aug 29 - Wed, Sep 2
JetBlue Logo
8:55 pm - 12:59 pm
PHL
-
STT
16h 04m
1 stop
JetBlue Logo
2:49 pm - 8:30 am
STT
-
PHL
17h 41m
2 stops
$484JetBlue
Fri, Jul 17 - Fri, Jul 24
JetBlue Logo
8:55 pm - 2:03 pm
PHL
-
STT
17h 08m
1 stop
JetBlue Logo
2:49 pm - 8:30 am
STT
-
PHL
17h 41m
2 stops
$486JetBlue
Mon, Jul 20 - Fri, Jul 24
JetBlue Logo
12:57 pm - 2:55 pm
PHL
-
STT
25h 58m
1 stop
JetBlue Logo
3:45 pm - 11:46 am
STT
-
PHL
20h 01m
1 stop
$488JetBlue
Wed, Aug 26 - Sun, Aug 30
JetBlue Logo
12:00 pm - 2:41 pm
PHL
-
STT
26h 41m
1 stop
JetBlue Logo
3:40 pm - 11:05 am
STT
-
PHL
19h 25m
1 stop
$491JetBlue
Sun, Sep 20 - Fri, Sep 25
JetBlue Logo
12:04 pm - 3:32 pm
PHL
-
STT
27h 28m
1 stop
JetBlue Logo
2:58 pm - 8:22 am
STT
-
PHL
17h 24m
2 stops
$497JetBlue
Sun, Aug 23 - Tue, Aug 25

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JetBlue flights from Philadelphia to Saint Thomas Island

Our best JetBlue deals on Philadelphia to Saint Thomas Island flight tickets
JetBlue
Sep 26
PHL12:00 pmPhiladelphia
26h 41m
1 stop
STT2:41 pmSaint Thomas Island Cyril E King
Oct 3
STT3:40 pmSaint Thomas Island Cyril E King
19h 25m
1 stop
PHL11:05 amPhiladelphia
$466
JetBlue
Aug 12
PHL12:57 pmPhiladelphia
25h 58m
1 stop
STT2:55 pmSaint Thomas Island Cyril E King
Aug 18
STT1:53 pmSaint Thomas Island Cyril E King
18h 29m
2 stops
PHL8:22 amPhiladelphia
$468
JetBlue
Sep 30
PHL12:00 pmPhiladelphia
26h 41m
1 stop
STT2:41 pmSaint Thomas Island Cyril E King
Oct 4
STT3:40 pmSaint Thomas Island Cyril E King
19h 25m
1 stop
PHL11:05 amPhiladelphia
$476

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 June 23, 2026.
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

Cheapest round-trip

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 9/26

12:00 pm-2:41 pm

1 stop26h 41m

Saint Thomas Island Cyril E King

Sat 10/3

3:40 pm-11:05 am

1 stop19h 25m

$466

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 8/12

12:57 pm-2:55 pm

1 stop25h 58m

Saint Thomas Island Cyril E King

Tue 8/18

1:53 pm-8:22 am

2 stops18h 29m

$468

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 9/30

12:00 pm-2:41 pm

1 stop26h 41m

Saint Thomas Island Cyril E King

Sun 10/4

3:40 pm-11:05 am

1 stop19h 25m

$476

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Mon 8/24

12:38 pm-2:55 pm

1 stop26h 17m

Saint Thomas Island Cyril E King

Fri 8/28

2:49 pm-8:08 am

2 stops17h 19m

$478

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sat 8/29

12:38 pm-2:55 pm

1 stop26h 17m

Saint Thomas Island Cyril E King

Wed 9/2

3:45 pm-11:46 am

1 stop20h 01m

$481
Quickest round-trip

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Fri 7/17

8:55 pm-12:59 pm

1 stop16h 04m

Saint Thomas Island Cyril E King

Fri 7/24

2:49 pm-8:30 am

2 stops17h 41m

$484

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Mon 7/20

8:55 pm-2:03 pm

1 stop17h 08m

Saint Thomas Island Cyril E King

Fri 7/24

2:49 pm-8:30 am

2 stops17h 41m

$486

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Wed 8/26

12:57 pm-2:55 pm

1 stop25h 58m

Saint Thomas Island Cyril E King

Sun 8/30

3:45 pm-11:46 am

1 stop20h 01m

$488

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 9/20

12:00 pm-2:41 pm

1 stop26h 41m

Saint Thomas Island Cyril E King

Fri 9/25

3:40 pm-11:05 am

1 stop19h 25m

$491

PhiladelphiaSaint Thomas Island

PHL - STT

PHLSTT

Philadelphia

Sun 8/23

12:04 pm-3:32 pm

1 stop27h 28m

Saint Thomas Island Cyril E King

Tue 8/25

2:58 pm-8:22 am

2 stops17h 24m

$497

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Saint Thomas Island from

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 typical price of a round-trip flight between Philadelphia and Saint Thomas Island?

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

The month of August is another great option to travel to Saint Thomas Island, with average flight prices from Philadelphia averaging around $561.

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 $699. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Saint Thomas Island for around $915.

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 from Philadelphia 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 $696 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 $595 on momondo.

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

There are 2 cabin classes available to choose from on Philadelphia to Saint Thomas Island 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 45% 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 June 2026, prices for Philadelphia to Saint Thomas Island flights are approximately 516% 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 30m

Direct flights

Mon, 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 30m
Direct flights go from Philadelphia to Saint Thomas Island on Monday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Saint Thomas Island. From Philadelphia there are direct flights to Saint Thomas Island Cyril E King (STT).
Search flight deals

Frequently asked questions about flying from Philadelphia to Saint Thomas Island

  • 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 3h 30m 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 $126Free CancellationRating
5.6
2,870 reviews
Search Frontier flights
JetBluePriceFrom $284Free CancellationRating
7.1
3,001 reviews
Search JetBlue flights
American AirlinesPriceFrom $572Free CancellationRating
7.1
11,745 reviews
Search American Airlines flights
DeltaPriceFrom $604Free CancellationRating
7.8
8,424 reviews
Search Delta flights
United AirlinesPriceFrom $670Free CancellationRating
7.4
9,875 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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