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$50+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
STT — SJU
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Round-trip from

$79
(Frontier)

One-way from

$50
(Frontier)

Popular in

April

Cheapest in

November

Average price

$114

Good round-trip deal

$154 or less

Good one-way deal

$113 or less
From Saint Thomas Island Cyril E King to Puerto Rico
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One-way flight from Saint Thomas Island Cyril E King to Puerto Rico
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Highest demand for flights based on searches. 7% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Saint Thomas Island Cyril E King to Puerto Rico.
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Price to beat on a one-way flight from Saint Thomas Island Cyril E King to Puerto Rico.
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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 April 17, 2025.

This Frontier deal was found by Cheapflights users on 4/17. 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.
Mon 4/281:12 pmSTT - SJU
Nonstop1h 02mFrontier
Fri 5/211:20 amSJU - STT
Nonstop0h 52mFrontier
Deal found 4/17$79
This Priceline deal was found by Cheapflights users on 4/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:05 pmSTT - SJU
Nonstop0h 35mMultiple Airlines
Fri 5/211:20 amSJU - STT
Nonstop0h 52mMultiple Airlines
Deal found 4/17$104
This JetBlue deal was found by Cheapflights users on 4/17. 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.
Tue 4/293:26 pmSTT - SJU
Nonstop0h 56mJetBlue
Fri 5/23:13 pmSJU - STT
Nonstop0h 40mJetBlue
Deal found 4/17$119
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/16:05 pmSTT - SJU
Nonstop0h 35mSilver Airways
Sun 5/48:00 amSJU - STT
Nonstop0h 35mSilver Airways
Deal found 4/17$124
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Sat 5/102:41 pmSTT - SJU
1 stop10h 13mSpirit Airlines
Mon 5/128:12 pmSJU - STT
1 stop13h 45mSpirit Airlines
Deal found 4/17$285
This Cape Air deal was found by Cheapflights users on 4/17. 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 Cape Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/179:28 amSTT - SJU
1 stop8h 17mCape Air
Fri 4/187:15 amSJU - STT
Nonstop0h 35mCape Air
Deal found 4/17$392
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 4/292:10 pmSTT - SJU
1 stop9h 47mUnited Airlines
Fri 5/21:05 amSJU - STT
1 stop12h 03mUnited Airlines
Deal found 4/17$584

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 April 17, 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

Mon 4/28

1:12 pm-2:14 pm

Nonstop1h 02m

San Juan Luis Munoz Marin Intl

Fri 5/2

11:20 am-12:12 pm

Nonstop0h 52m

$79

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 5/1

6:05 pm-6:40 pm

Nonstop0h 35m

San Juan Luis Munoz Marin Intl

Fri 5/2

11:20 am-12:12 pm

Nonstop0h 52m

$104

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Tue 4/29

3:26 pm-4:22 pm

Nonstop0h 56m

San Juan Luis Munoz Marin Intl

Fri 5/2

3:13 pm-3:53 pm

Nonstop0h 40m

$119

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 5/1

6:05 pm-6:40 pm

Nonstop0h 35m

San Juan Luis Munoz Marin Intl

Mon 5/5

4:55 pm-5:30 pm

Nonstop0h 35m

$124

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 5/10

2:41 pm-12:54 am

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Mon 5/12

8:12 pm-9:57 am

1 stop13h 45m

$285

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Tue 4/29

2:10 pm-11:57 pm

1 stop9h 47m

San Juan Luis Munoz Marin Intl

Fri 5/2

1:05 am-1:08 pm

1 stop12h 03m

$584

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 5/1

3:00 pm-11:15 pm

1 stop8h 15m

San Juan Luis Munoz Marin Intl

Tue 5/6

6:15 am-3:05 pm

1 stop8h 50m

$2,829

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 5/10

6:05 pm-6:40 pm

Nonstop0h 35m

$59

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Mon 6/16

5:12 pm-6:10 pm

Nonstop0h 58m

$65

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Wed 5/21

4:48 pm-5:34 pm

Nonstop0h 46m

$70

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 14 results
1
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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 December is currently the most expensive (average of $336). 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 April 17, 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 April 17, 2025.

The most flights from STT to PR0 are scheduled on a Thursday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Puerto Rico when rainfall is around 2.2 in.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 April 17, 2025.
Read reviews from past customers who have flown United Airlines, JetBlue and Spirit Airlines from Saint Thomas Island to Puerto Rico. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,667 reviews

Crew

8.1

Entertainment

7.0

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,667 reviews
United Airlines
7.4
Good
8,667 reviews

Crew

8.1

Entertainment

7.0

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.3
Good
2,926 reviews
United Airlines
7.4
Good
8,667 reviews

Crew

8.1

Entertainment

7.0

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Spirit Airlines
6.3
Okay
7,926 reviews
United Airlines
7.4
Good
8,667 reviews

Crew

8.1

Entertainment

7.0

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Frontier
6.0
Okay
3,281 reviews
United Airlines
7.4
Good
8,667 reviews

Crew

8.1

Entertainment

7.0

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 $50. Silver Airways flights start at $59 while deals on JetBlue start at $70 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: Frontier (83%), Silver Airways (76%), Sun Country Air (71%).

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

    On average you can expect to pay $180 for a flight from Saint Thomas Island to Puerto Rico. The cheapest flight overall is $52 while the most popular route, (Saint Thomas Island Cyril E King - San Juan Luis Munoz Marin Intl) is currently priced at $96.

  • 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 December is currently the most expensive (average of $336). 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

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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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$22Average$59FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$45Average$106FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$58Average$77FlexibilityNo cancel feeOn-time69%
Silver AirwaysCheapest$59Average$108FlexibilityNo cancel feeOn-timeN/A
Cape AirCheapest$231Average$259FlexibilityNo cancel feeOn-time63%

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