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Cheap flights from Philadelphia to Saint Thomas Island from $242

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.
Multiple Airlines Logo
6:19 pm - 10:05 amPHL  Philadelphia-STT Saint Thomas Island Cyril E King
14h 46m1 stop Tampa
Multiple Airlines Logo
3:50 pm - 9:18 amSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
18h 28m1 stop Tampa
$449Multiple Airlines
Fri, Jan 1 - Wed, Jan 13
Southwest Logo
6:25 am - 2:55 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
7h 30m1 stop Orlando
Southwest Logo
2:10 pm - 12:50 amSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
11h 40m1 stop Orlando
$470Southwest
Sun, Feb 7 - Thu, Feb 11
JetBlue Logo
1:00 pm - 1:41 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
23h 41m1 stop San Juan Luis Munoz Marin Intl
JetBlue Logo
2:31 pm - 12:10 pmSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
22h 39m1 stop San Juan Luis Munoz Marin Intl
$480JetBlue
Tue, Jan 5 - Mon, Jan 11
JetBlue Logo
1:00 pm - 1:41 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
23h 41m1 stop San Juan Luis Munoz Marin Intl
JetBlue Logo
2:31 pm - 12:10 pmSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
22h 39m1 stop San Juan Luis Munoz Marin Intl
$480JetBlue
Tue, Jan 19 - Wed, Feb 3
Delta Logo
6:30 am - 2:53 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
7h 23m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:11 pm - 10:28 pmSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
8h 17m1 stop Atlanta Hartsfield-Jackson
$620Delta
Tue, Jan 5 - Tue, Jan 12
Delta Logo
8:00 am - 3:49 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
6h 49m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:54 pm - 12:58 amSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
12h 04m1 stop Atlanta Hartsfield-Jackson
$620Delta
Mon, Jan 4 - Thu, Jan 14
American Airlines Logo
6:00 pm - 12:17 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
17h 17m1 stop Miami
American Airlines Logo
2:34 pm - 5:55 pmSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
4h 21mnonstop
$676American Airlines
Sat, Dec 12 - Fri, Dec 18
American Airlines Logo
6:00 pm - 12:17 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
17h 17m1 stop Miami
American Airlines Logo
2:34 pm - 5:55 pmSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
4h 21mnonstop
$676American Airlines
Sat, Dec 12 - Fri, Dec 18
United Airlines Logo
6:15 am - 1:56 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
6h 41m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
1:07 pm - 6:45 pmSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
6h 38m1 stop Washington, D.C. Dulles Intl
$722United Airlines
Wed, Feb 10 - Sun, Feb 14
United Airlines Logo
6:05 am - 4:20 pmPHL  Philadelphia-STT Saint Thomas Island Cyril E King
9h 15m1 stop Chicago O'Hare Intl
United Airlines Logo
1:07 pm - 12:59 amSTT  Saint Thomas Island Cyril E King-PHL Philadelphia
12h 52m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
$820United Airlines
Thu, Feb 25 - Thu, Mar 4

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Southwest flights from Philadelphia to Saint Thomas Island

Our best Southwest deals on Philadelphia to Saint Thomas Island flight tickets
Southwest
Feb 7
PHL12:05 pmPhiladelphia
24h 15m
2 stops
STT1:20 pmSaint Thomas Island Cyril E King
Feb 11
STT2:10 pmSaint Thomas Island Cyril E King
11h 40m
1 stop
PHL12:50 amPhiladelphia
$470
Southwest
Jan 18
PHL5:20 pmPhiladelphia
20h 35m
2 stops
STT2:55 pmSaint Thomas Island Cyril E King
Feb 2
STT2:10 pmSaint Thomas Island Cyril E King
9h 10m
1 stop
PHL10:20 pmPhiladelphia
$504
Southwest
Feb 22
PHL5:20 pmPhiladelphia
20h 35m
2 stops
STT2:55 pmSaint Thomas Island Cyril E King
Mar 3
STT2:10 pmSaint Thomas Island Cyril E King
9h 10m
1 stop
PHL10:20 pmPhiladelphia
$513

JetBlue flights from Philadelphia to Saint Thomas Island

Our best JetBlue deals on Philadelphia to Saint Thomas Island flight tickets
JetBlue
Feb 22
PHL11:50 amPhiladelphia
25h 38m
1 stop
STT2:28 pmSaint Thomas Island Cyril E King
Mar 3
STT3:18 pmSaint Thomas Island Cyril E King
19h 43m
1 stop
PHL10:01 amPhiladelphia
$480
JetBlue
Feb 28
PHL10:51 amPhiladelphia
26h 37m
1 stop
STT2:28 pmSaint Thomas Island Cyril E King
Mar 2
STT3:18 pmSaint Thomas Island Cyril E King
19h 43m
1 stop
PHL10:01 amPhiladelphia
$509
JetBlue
Dec 2
PHL11:35 amPhiladelphia
25h 08m
1 stop
STT1:43 pmSaint Thomas Island Cyril E King
Dec 8
STT2:35 pmSaint Thomas Island Cyril E King
21h 10m
1 stop
PHL10:45 amPhiladelphia
$519

momondo Fare Finder

 
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 Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Fri 1/1

6:19 pm-10:05 am

1 stop14h 46m

Saint Thomas Island Cyril E King

Wed 1/13

3:50 pm-9:18 am

1 stop18h 28m

$449

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Sun 2/7

6:25 am-2:55 pm

1 stop7h 30m

Saint Thomas Island Cyril E King

Thu 2/11

2:10 pm-12:50 am

1 stop11h 40m

$470

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Tue 1/5

1:00 pm-1:41 pm

1 stop23h 41m

Saint Thomas Island Cyril E King

Mon 1/11

2:31 pm-12:10 pm

1 stop22h 39m

$480

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Tue 1/19

1:00 pm-1:41 pm

1 stop23h 41m

Saint Thomas Island Cyril E King

Wed 2/3

2:31 pm-12:10 pm

1 stop22h 39m

$480

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Tue 1/5

6:30 am-2:53 pm

1 stop7h 23m

Saint Thomas Island Cyril E King

Tue 1/12

3:11 pm-10:28 pm

1 stop8h 17m

$620

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Mon 1/4

8:00 am-3:49 pm

1 stop6h 49m

Saint Thomas Island Cyril E King

Thu 1/14

1:54 pm-12:58 am

1 stop12h 04m

$620

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Sat 12/12

6:00 pm-12:17 pm

1 stop17h 17m

Saint Thomas Island Cyril E King

Fri 12/18

2:34 pm-5:55 pm

Nonstop4h 21m

$676

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Sat 12/12

6:00 pm-12:17 pm

1 stop17h 17m

Saint Thomas Island Cyril E King

Fri 12/18

2:34 pm-5:55 pm

Nonstop4h 21m

$676
Quickest round-trip

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Wed 2/10

6:15 am-1:56 pm

1 stop6h 41m

Saint Thomas Island Cyril E King

Sun 2/14

1:07 pm-6:45 pm

1 stop6h 38m

$722

PhiladelphiaSaint Thomas Island

PHL Philadelphia - STT Saint Thomas Island Cyril E King

PHLSTT

Philadelphia

Thu 2/25

6:05 am-4:20 pm

1 stop9h 15m

Saint Thomas Island Cyril E King

Thu 3/4

1:07 pm-12:59 am

2 stops12h 52m

$820

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?

Prices are currently low for flights on this route.

Typical prices usually range from $790 to $1,315.
The lowest price recently found on this route was $449.

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

The month of October is another great option to travel to Saint Thomas Island, with average flight prices from Philadelphia averaging around $680.

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 $679. 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 $901.

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 $788 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 $690 on momondo.

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

There is only 1 cabin class 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.

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

As of November 2026, prices for Philadelphia to Saint Thomas Island flights are approximately 155% 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

$242

Fastest flight time

4h 00m

Direct flights

Every day

Airports in Saint Thomas Island

1 airport
The best one-way flight to Saint Thomas Island from Philadelphia in the past 72 hours is $242. The best round-trip flight deal from Philadelphia to Saint Thomas Island found on momondo in the last 72 hours is $449.
The fastest flight from Philadelphia to Saint Thomas Island takes 4h 00m
Direct flights go from Philadelphia to Saint Thomas Island every day.
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 4h 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
JetBluePriceFrom $284Free CancellationRating
7.1
3,065 reviews
Search JetBlue flights
DeltaPriceFrom $500Free CancellationRating
7.8
8,700 reviews
Search Delta flights
American AirlinesPriceFrom $591Free CancellationRating
7.0
12,225 reviews
Search American Airlines flights
United AirlinesPriceFrom $670Free CancellationRating
7.3
10,475 reviews
Search United Airlines flights

  • American Airlines Flights From Philadelphia to Saint Thomas Island

    American Airlines is one of the most popular airlines flying from Philadelphia to Saint Thomas Island, operating 1 flight/week on average for this route. A good American Airlines flight deal for Philadelphia to Saint Thomas Island starts from $591 round-trip, up to an average price of $816. Our users have rated American Airlines at 7.0/10.

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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