$143+ Cheap flights from Philadelphia (PHL) to Saint Thomas Island (STT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STT
Apr 26 — May 31
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Philadelphia to Saint Thomas Island with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Philadelphia to Saint Thomas Island Cyril E King are usually found in July or September, booked 13 days in advance, depart on a Sunday or Thursday and return on a Monday
Cheap flight deals from Philadelphia to Saint Thomas Island
Cheapest
Best
Last-minute
One-way
Cheapest flights from Philadelphia to Saint Thomas IslandExplore the most affordable flight options available from Philadelphia to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
Explore the most affordable flight options available from Philadelphia to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:18 am
PHL
- STT
1 stop7h 10m
Spirit Airlines
Tue 4/144:35 pm
STT
- PHL
1 stop18h 35m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$281
This Trip.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:48 am
PHL
- STT
1 stop8h 40m
Multiple Airlines
Thu 4/1612:25 pm
STT
- PHL
1 stop10h 45m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$283
This CheapOair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:18 am
PHL
- STT
1 stop7h 10m
Spirit Airlines
Fri 4/175:10 pm
STT
- PHL
1 stop6h 27m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$287
This CheapOair deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:53 pm
PHL
- STT
1 stop16h 33m
Spirit Airlines
Tue 4/144:35 pm
STT
- PHL
1 stop7h 21m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$292
This CheapOair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:12 pm
PHL
- STT
1 stop18h 57m
Spirit Airlines
Tue 5/122:04 pm
STT
- PHL
1 stop9h 33m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$298
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 am
PHL
- STT
1 stop10h 30m
Spirit Airlines
Wed 4/295:10 pm
STT
- PHL
1 stop6h 27m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:42 pm
PHL
- STT
1 stop17h 12m
Multiple Airlines
Sat 5/212:25 pm
STT
- PHL
1 stop11h 34m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$301
This Mytrip deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:18 am
PHL
- STT
1 stop7h 10m
Spirit Airlines
Tue 4/2110:49 am
STT
- PHL
2 stops23h 00m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$303
Best flights from Philadelphia to Saint Thomas IslandDiscover carefully curated flight deals from Philadelphia to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
Discover carefully curated flight deals from Philadelphia to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:45 am
PHL
- STT
1 stop7h 22m
Spirit Airlines
Wed 7/82:12 pm
STT
- PHL
1 stop9h 28m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:21 am
PHL
- STT
1 stop9h 09m
Multiple Airlines
Wed 7/84:43 pm
STT
- PHL
1 stop8h 01m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:45 pm
PHL
- STT
2 stops19h 58m
United Airlines
Wed 5/61:22 pm
STT
- PHL
2 stops20h 32m
United Airlines
Deal found 3/26![United Airlines logo]()
$619
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:50 pm
PHL
- STT
2 stops20h 35m
Southwest
Sun 9/132:10 pm
STT
- PHL
1 stop9h 20m
Southwest
Deal found 3/24![Southwest logo]()
$640
This American Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:30 am
PHL
- STT
Nonstop4h 05m
American Airlines
Sun 5/1712:25 pm
STT
- PHL
1 stop10h 19m
American Airlines
Deal found 3/22![American Airlines logo]()
$676
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:05 am
PHL
- STT
1 stop7h 15m
Delta
Sat 7/255:50 pm
STT
- PHL
1 stop7h 07m
Delta
Deal found 3/23![Delta logo]()
$685
This CheapOair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:12 pm
PHL
- STT
1 stop22h 03m
Spirit Airlines
Thu 5/215:10 pm
STT
- PHL
2 stops20h 05m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$365
This CheapOair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1011:36 am
PHL
- STT
2 stops25h 33m
Spirit Airlines
Sun 5/172:04 pm
STT
- PHL
2 stops18h 52m
Spirit Airlines
Deal found 3/22![Spirit Airlines logo]()
$397
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/257:30 am
PHL
- STT
2 stops29h 39m
Spirit Airlines
Mon 6/12:04 pm
STT
- PHL
2 stops29h 47m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:18 am
PHL
- STT
1 stop7h 10m
Multiple Airlines
Sat 4/112:22 pm
STT
- PHL
2 stops41h 48m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$587
This CheapOair deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:41 pm
PHL
- STT
2 stops17h 49m
Spirit Airlines
Tue 7/73:25 pm
STT
- PHL
2 stops20h 55m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$534
Last-minute flights from Philadelphia to Saint Thomas IslandDiscover last-minute flight deals from Philadelphia to Saint Thomas Island. Data last updated March 27, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Saint Thomas Island. Data last updated March 27, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:18 am
PHL
- STT
1 stop7h 10m
Spirit Airlines
Tue 4/2110:49 am
STT
- PHL
2 stops23h 00m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$303
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:18 am
PHL
- STT
1 stop7h 10m
Spirit Airlines
Tue 4/144:35 pm
STT
- PHL
1 stop18h 35m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$281
This CheapOair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:18 am
PHL
- STT
1 stop7h 10m
Spirit Airlines
Fri 4/175:10 pm
STT
- PHL
1 stop6h 27m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$287
This CheapOair deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:53 pm
PHL
- STT
1 stop16h 33m
Spirit Airlines
Tue 4/144:35 pm
STT
- PHL
1 stop7h 21m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$292
This Trip.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:48 am
PHL
- STT
1 stop8h 40m
Multiple Airlines
Thu 4/1612:25 pm
STT
- PHL
1 stop10h 45m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:42 pm
PHL
- STT
1 stop17h 12m
Multiple Airlines
Sat 5/212:25 pm
STT
- PHL
1 stop11h 34m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$301
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 am
PHL
- STT
1 stop10h 30m
Spirit Airlines
Wed 4/295:10 pm
STT
- PHL
1 stop6h 27m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$300
One-way flights from Philadelphia to Saint Thomas IslandSearch for one-way flight options from Philadelphia to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
Search for one-way flight options from Philadelphia to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2510:24 pm
PHL
- STT
1 stop11h 30m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:38 pm
PHL
- STT
1 stop11h 16m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$148
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:45 am
PHL
- STT
1 stop10h 30m
Spirit Airlines
Deal found 3/23![Spirit Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:38 pm
PHL
- STT
1 stop11h 16m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$152
This Cheapflightsfares deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:45 am
PHL
- STT
1 stop7h 22m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:00 am
PHL
- STT
1 stop28h 47m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:30 pm
PHL
- STT
1 stop22h 00m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:45 am
PHL
- STT
1 stop10h 30m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:50 am
PHL
- STT
1 stop7h 58m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:12 pm
PHL
- STT
1 stop17h 18m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:45 am
PHL
- STT
1 stop10h 30m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:45 am
PHL
- STT
1 stop7h 24m
Spirit Airlines
Deal found 3/23![Spirit Airlines logo]()
$165
Find flight deals from Philadelphia to Saint Thomas Island
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (CheapOair) |
One-way from | $143 (Kiwi.com) |
Popular in | December |
Cheapest in | July |
Average price | $696 |
Good round-trip deal | $831 or less |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 27, 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
Cheapest round-trip
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Wed 7/1
5:45 am-1:07 pm
1 stop7h 22m
Saint Thomas Island Cyril E King
Wed 7/8
2:12 pm-11:40 pm
1 stop9h 28m
$352
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Fri 5/8
6:12 pm-4:15 pm
1 stop22h 03m
Saint Thomas Island Cyril E King
Thu 5/21
5:10 pm-1:15 pm
2 stops20h 05m
$365
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Sun 5/10
11:36 am-1:09 pm
2 stops25h 33m
Saint Thomas Island Cyril E King
Sun 5/17
2:04 pm-8:56 am
2 stops18h 52m
$397
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Mon 5/25
7:30 am-1:09 pm
2 stops29h 39m
Saint Thomas Island Cyril E King
Mon 6/1
2:04 pm-7:51 pm
2 stops29h 47m
$444
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Fri 7/3
5:21 am-2:30 pm
1 stop9h 09m
Saint Thomas Island Cyril E King
Wed 7/8
4:43 pm-12:44 am
1 stop8h 01m
$461
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Thu 7/2
8:41 pm-2:30 pm
2 stops17h 49m
Saint Thomas Island Cyril E King
Tue 7/7
3:25 pm-12:20 pm
2 stops20h 55m
$534
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Wed 4/8
8:18 am-3:28 pm
1 stop7h 10m
Saint Thomas Island Cyril E King
Sat 4/11
2:22 pm-8:10 am
2 stops41h 48m
$587
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Thu 4/30
7:45 pm-3:43 pm
2 stops19h 58m
Saint Thomas Island Cyril E King
Wed 5/6
1:22 pm-9:54 am
2 stops20h 32m
$619
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Sat 9/5
4:50 pm-1:25 pm
2 stops20h 35m
Saint Thomas Island Cyril E King
Sun 9/13
2:10 pm-11:30 pm
1 stop9h 20m
$640
PhiladelphiaSaint Thomas Island
PHL - STT
PHLSTT
Philadelphia
Sun 5/10
8:30 am-12:35 pm
Nonstop4h 05m
Saint Thomas Island Cyril E King
Sun 5/17
12:25 pm-10:44 pm
1 stop10h 19m
$676
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Saint Thomas Island
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Saint Thomas Island in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Philadelphia-Saint Thomas Island flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Saint Thomas Island flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Saint Thomas Island flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Saint Thomas Island
Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Philadelphia with our price prediction graph.
PHL-STT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Saint Thomas Island
Prices
More
How far ahead should I book a flight from Philadelphia to Saint Thomas Island?
Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Saint Thomas Island. Price data was last updated on March 13, 2026.
The price you pay for your flight from Philadelphia to Saint Thomas Island may vary depending on when you book. For the best chance of a lower fare, look to book 13 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Philadelphia to Saint Thomas Island?
Currently, July is the cheapest month in which you can book a flight from Philadelphia to Saint Thomas Island (average of $111). Flying from Philadelphia to Saint Thomas Island in November is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHL to STT?
Find hourly flight availability from Philadelphia to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 27, 2026.
When flying from Philadelphia to Saint Thomas Island, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What’s the top layover airport for flights from Philadelphia to Saint Thomas Island?
Share of 1-stop round-trip flights from Philadelphia to Saint Thomas Island chosen by Cheapflights users in the past 12 months, using the same layover each way.
Fort Lauderdale (FLL) – chosen by Cheapflights users on 67% of 1-stop itineraries from Philadelphia to Saint Thomas Island on Cheapflights.
What’s the cheapest layover airport for flights from Philadelphia to Saint Thomas Island?
Average round-trip fare for 1-stop flights from Philadelphia to Saint Thomas Island, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Fort Lauderdale (FLL) is the most affordable 1-stop option, with an average round-trip price of $314.
What’s the fastest layover option from Philadelphia to Saint Thomas Island?
Shortest average travel time for 1-stop one-way flights from Philadelphia to Saint Thomas Island, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Fort Lauderdale (FLL) have the shortest average one-way travel time for 1-stop routes: 8h 58m.
Which airport typically offers the quickest layover for flights from Philadelphia to Saint Thomas Island?
Average layover duration for 1-stop one-way flights from Philadelphia to Saint Thomas Island, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Fort Lauderdale (FLL) offer the fastest connection on this route, with an average layover time of 2h 31m.
Reviews of airlines servicing Saint Thomas Island
Get insights into the airlines that provide service to Saint Thomas Island. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Thomas Island. Reviews last updated March 27, 2026.
Read through reviews of airlines operating flights from Philadelphia to Saint Thomas Island, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Saint Thomas Island?
Book flights to Saint Thomas Island if you plan to visit one of these locationsSt. John
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Philadelphia
Popular flights
Saint Thomas Island flight routes
Alternative routes for Philadelphia to Saint Thomas Island
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Saint Thomas Island by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Philadelphia to Saint Thomas Island by cabin class
Find flights from Philadelphia to Saint Thomas Island, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Saint Thomas Island flights
Browse other Philadelphia and Saint Thomas Island flight options. Last updated on March 27, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on March 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Saint Thomas Island
Explore flights to Saint Thomas Island departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 27, 2026.
Top 6 airlines flying from Philadelphia to Saint Thomas Island
Discover the top 6 airlines that operate flights from Philadelphia to Saint Thomas Island. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$172 | Average$221 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$247 | Average$396 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$284 | Average$541 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$308 | Average$724 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$493 | Average$684 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$559 | Average$791 | FlexibilityNo cancel fee | On-time71% |