HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$54+ Cheap flights from Saint Thomas Island (STT) to Puerto Rico

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
STT — SJU
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Saint Thomas Island to Puerto Rico 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.

Cheap flight deals from Saint Thomas Island to Puerto Rico

Keep the following information in mind while searching for Saint Thomas Island to Puerto Rico flight deals. Data was last updated July 3, 2025.

Round-trip from

$95
(Frontier)

One-way from

$54
(Frontier)

Popular in

June

Cheapest in

November

Average price

$89

Good round-trip deal

$153 or less

Good one-way deal

$95 or less
From Saint Thomas Island Cyril E King to Puerto Rico
Search Deals
One-way flight from Saint Thomas Island Cyril E King to Puerto Rico
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Saint Thomas Island Cyril E King to Puerto Rico.
Search Deals
Price to beat on a one-way flight from Saint Thomas Island Cyril E King to Puerto Rico.
Search Deals

Find flight deals from Saint Thomas Island to Puerto Rico

Cheapest flights from Saint Thomas Island to Puerto Rico
Explore the most affordable flight options available from Saint Thomas Island to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Frontier deal was found by Cheapflights users on 7/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/255:14 pmSTT - SJU
Nonstop0h 54mFrontier
Mon 8/43:37 pmSJU - STT
Nonstop0h 52mFrontier
Deal found 7/3$95
This JetBlue deal was found by Cheapflights users on 7/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:23 pmSTT - SJU
Nonstop0h 47mJetBlue
Sun 8/3112:50 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 7/3$109
This FlightHub deal was found by Cheapflights users on 7/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/185:14 pmSTT - SJU
Nonstop0h 54mMultiple Airlines
Sun 7/2011:15 amSJU - STT
Nonstop0h 35mMultiple Airlines
Deal found 7/3$171

Cheapflights Fare Finder

Customize your flight search to find flights from Saint Thomas Island to Puerto Rico 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 July 3, 2025.
Use the filters below to find and compare flights from Saint Thomas Island to Puerto Rico that are best for you.

Fly from

Saint Thomas Island

Fly to

Puerto Rico

Route

Depart

Return

Price

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Fri 7/25

5:14 pm-6:08 pm

Nonstop0h 54m

San Juan Luis Munoz Marin Intl

Mon 8/4

3:37 pm-4:29 pm

Nonstop0h 52m

$95

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 8/28

2:23 pm-3:10 pm

Nonstop0h 47m

San Juan Luis Munoz Marin Intl

Sun 8/31

12:50 pm-1:28 pm

Nonstop0h 38m

$109

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Fri 7/18

5:14 pm-6:08 pm

Nonstop0h 54m

San Juan Luis Munoz Marin Intl

Sun 7/20

11:15 am-11:50 am

Nonstop0h 35m

$171

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Fri 7/11

5:14 pm-6:08 pm

Nonstop0h 54m

$54

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Tue 7/15

2:23 pm-3:10 pm

Nonstop0h 47m

$65

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Mon 8/4

10:43 am-9:09 pm

1 stop10h 26m

$129

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sun 7/27

10:55 am-11:30 am

Nonstop0h 35m

$141

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Wed 7/9

6:26 pm-9:20 am

1 stop14h 54m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Saint Thomas Island to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Saint Thomas Island with our price prediction graph.
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 Saint Thomas Island to Puerto Rico

What is the cheapest month to book a flight from Saint Thomas Island to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Saint Thomas Island to Puerto Rico (average of $254). Flying from Saint Thomas Island to Puerto Rico in June is currently the most expensive (average of $339). 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 STT to PR?

Find hourly flight availability from Saint Thomas Island to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from Saint Thomas Island to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Saint Thomas Island to Puerto Rico

Explore weekly flight availability from Saint Thomas Island to Puerto Rico. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from STT to PR0 are scheduled on a Thursday (19 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (15 on average).

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Saint Thomas Island to Puerto Rico, such as JetBlue, Spirit Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.3
Good
2,916 reviews

Entertainment

7.3

Crew

8.0

Food

6.7

Comfort

7.6

Boarding

7.5

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
JetBlue
7.3
Good
2,916 reviews
JetBlue
7.3
Good
2,916 reviews

Entertainment

7.3

Crew

8.0

Food

6.7

Comfort

7.6

Boarding

7.5

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
Spirit Airlines
6.3
Okay
8,086 reviews
JetBlue
7.3
Good
2,916 reviews

Entertainment

7.3

Crew

8.0

Food

6.7

Comfort

7.6

Boarding

7.5

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
Frontier
5.9
Fair
3,286 reviews
JetBlue
7.3
Good
2,916 reviews

Entertainment

7.3

Crew

8.0

Food

6.7

Comfort

7.6

Boarding

7.5

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.

Related info for your journey

Find useful and relevant information for your journey from Saint Thomas Island to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Saint Thomas Island to Puerto Rico?

    Saint Thomas Island Cyril E King (STT), located 2.8 mi from the city center, is the airport you fly out of when you book flights from Saint Thomas Island to Puerto Rico.

  • What are the cheapest airlines to fly from Saint Thomas Island to Puerto Rico one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $54. JetBlue flights start at $65 while deals on Spirit Airlines start at $129 one-way.

  • What are the most reliable airlines from Saint Thomas Island to Puerto Rico?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Saint Thomas Island to Puerto Rico on time: Qatar Airways (100%), Silver Airways (85%), United Airlines (69%).

  • What are the cheapest flights from Saint Thomas Island to Puerto Rico?

    On average you can expect to pay $178 for a flight from Saint Thomas Island to Puerto Rico. The cheapest flight overall is $61 while the most popular route, (Saint Thomas Island Cyril E King - San Juan Luis Munoz Marin Intl) is currently priced at $109.

  • Can I find deals for flights from Saint Thomas Island to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Saint Thomas Island to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Saint Thomas Island to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Thomas Island to Puerto Rico.

  • Can I find deals for business class flights from Saint Thomas Island to Puerto Rico?

    Yes. Cheapflights offers flight deals from Saint Thomas Island to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Saint Thomas Island to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Saint Thomas Island to Puerto Rico (average of $254). Flying from Saint Thomas Island to Puerto Rico in June is currently the most expensive (average of $339). 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.

See more FAQs

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.

Top 5 airlines flying from Saint Thomas Island to Puerto Rico

Discover the top 5 airlines that operate flights from Saint Thomas Island to Puerto Rico. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$24Average$60FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$51Average$121FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$58Average$77FlexibilityNo cancel feeOn-time69%
Silver AirwaysCheapest$64Average$119FlexibilityNo cancel feeOn-timeN/A
Cape AirCheapest$170Average$283FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.