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Saint Thomas Island

$49+ Cheap flights from San Juan 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — STT
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Saint Thomas Island Cyril E King are usually found in August or October, booked 82 days in advance, depart on a Friday or Monday and return on a Friday

Cheap flight deals from San Juan to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) 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 August 2, 2025.

Round-trip from

$97
(Frontier)

One-way from

$49
(JetBlue)

Popular in

June

Cheapest in

August

Average price

$68
From San Juan to Saint Thomas Island Cyril E King
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One-way flight from San Juan to Saint Thomas Island Cyril E King
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Highest demand for flights based on searches. 21% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from San Juan to Saint Thomas Island

Cheapest flights from San Juan to Saint Thomas Island
Explore the most affordable flight options available from San Juan to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2025.

This Frontier deal was found by Cheapflights users on 7/31. 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 8/153:37 pmSJU - STT
Nonstop0h 52mFrontier
Mon 8/185:14 pmSTT - SJU
Nonstop0h 54mFrontier
Deal found 7/31$97
This Trip.com deal was found by Cheapflights users on 7/31. 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.
Thu 8/2112:50 pmSJU - STT
Nonstop0h 38mJetBlue
Sun 8/242:23 pmSTT - SJU
Nonstop0h 47mJetBlue
Deal found 7/31$100
This FlightHub deal was found by Cheapflights users on 7/30. 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 8/153:37 pmSJU - STT
Nonstop0h 52mMultiple Airlines
Mon 8/1812:18 pmSTT - SJU
1 stop9h 30mMultiple Airlines
Deal found 7/30$171
This OneTravel deal was found by Cheapflights users on 7/31. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2111:15 amSJU - STT
Nonstop0h 35mCape Air
Sun 8/245:45 pmSTT - SJU
Nonstop0h 35mCape Air
Deal found 7/31$258

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan 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 August 2, 2025.
Use the filters below to find and compare flights from San Juan to Saint Thomas Island that are best for you.

Fly from

San Juan

Fly to

Saint Thomas Island

Route

Depart

Return

Price

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Fri 8/15

3:37 pm-4:29 pm

Nonstop0h 52m

Saint Thomas Island Cyril E King

Mon 8/18

5:14 pm-6:08 pm

Nonstop0h 54m

$97

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Thu 8/21

12:50 pm-1:28 pm

Nonstop0h 38m

Saint Thomas Island Cyril E King

Sun 8/24

2:23 pm-3:10 pm

Nonstop0h 47m

$100

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Fri 8/15

3:37 pm-4:29 pm

Nonstop0h 52m

Saint Thomas Island Cyril E King

Mon 8/18

12:18 pm-9:48 pm

1 stop9h 30m

$171

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Wed 10/15

7:15 am-7:50 am

Nonstop0h 35m

Saint Thomas Island Cyril E King

Sun 10/19

2:35 pm-3:10 pm

Nonstop0h 35m

$218

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Thu 8/21

2:11 am-3:19 pm

1 stop13h 08m

Saint Thomas Island Cyril E King

Mon 8/25

12:18 pm-9:48 pm

1 stop9h 30m

$281

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Thu 8/7

12:50 pm-1:28 pm

Nonstop0h 38m

$49

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Thu 8/7

12:55 pm-1:30 pm

Nonstop0h 35m

$112

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Fri 9/26

6:44 am-2:57 pm

1 stop8h 13m

$135

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Thu 9/4

6:10 am-4:00 pm

1 stop9h 50m

$304

San JuanSaint Thomas Island

SJU - STT

SJUSTT

San Juan Luis Munoz Marin Intl

Mon 1/26

2:05 am-12:00 pm

1 stop9h 55m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Best time to book a flight from San Juan to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from San Juan 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 San Juan to Saint Thomas Island

How far ahead should I book a flight from San Juan to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Saint Thomas Island. Price data was last updated on July 25, 2025.

The price you pay for your flight from San Juan to Saint Thomas Island may vary depending on when you book. For the best chance of a lower fare, look to book 82 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 San Juan to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from San Juan to Saint Thomas Island (average of $433). Flying from San Juan to Saint Thomas Island in June is currently the most expensive (average of $649). 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 SJU to STT?

Find hourly flight availability from San Juan 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 August 2, 2025.

A simple way to save on the total cost of your ticket is to fly from San Juan to Saint Thomas Island in the morning. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight at noon.

Weekly flight availability from San Juan to Saint Thomas Island

Explore weekly flight availability from San Juan to Saint Thomas Island. 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 August 2, 2025.

The most flights from PR1 to STT are scheduled on a Monday (18 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (13 on average).

How much does it cost to fly round-trip from San Juan to Saint Thomas Island?

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 August 2, 2025.
Read through reviews of airlines operating flights from San Juan to Saint Thomas Island, such as United Airlines, JetBlue, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,904 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,904 reviews
United Airlines
7.4
Good
8,904 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
JetBlue
7.3
Good
2,915 reviews
United Airlines
7.4
Good
8,904 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,904 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Spirit Airlines
6.3
Okay
8,054 reviews
United Airlines
7.4
Good
8,904 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from San Juan 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.

  • What airport do you fly into for flights to Saint Thomas Island from San Juan?

    Saint Thomas Island Cyril E King (STT), located 2.8 mi from the city center, is the airport you fly into when you book flights from San Juan to Saint Thomas Island. 5 airlines have flights to Cyril E King from San Juan on a regular basis. Booking flights from San Juan to Saint Thomas Island Cyril E King should not be difficult; the airport handles an average of 15 inbound flights from San Juan per day.

  • What are the cheapest airlines flying from San Juan to Saint Thomas Island round-trip?

    Currently priced at $97, Frontier will fly you from San Juan to Saint Thomas Island and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and Cape Air - these airlines can fly you to your destination from $100 and $218, respectively.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $49. Cape Air flights start at $112 while deals on Spirit Airlines start at $135 one-way.

  • What are the most reliable airlines from San Juan to Saint Thomas Island?

    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 San Juan to Saint Thomas Island on time: Air Cargo Carriers (100%), United Airlines (78%), Silver Airways (77%).

  • What are the cheapest flights from San Juan to Saint Thomas Island?

    On average you can expect to pay $127 for a flight from San Juan to Saint Thomas Island. The cheapest flight overall is $48 while the most popular route, (San Juan Luis Munoz Marin Intl - Saint Thomas Island Cyril E King) is currently priced at $109.

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

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

  • How can I find direct flights from San Juan to Saint Thomas Island?

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

  • Can I find deals for business class flights from San Juan to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from San Juan to Saint Thomas Island 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 San Juan to Saint Thomas Island?

    Currently, September is the cheapest month in which you can book a flight from San Juan to Saint Thomas Island (average of $433). Flying from San Juan to Saint Thomas Island in June is currently the most expensive (average of $649). 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

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

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Alternative routes for San Juan to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Christiansted flights
Luis Munoz Marin Intl to Saint Thomas Island flights

Top 5 airlines flying from San Juan to Saint Thomas Island

Discover the top 5 airlines that operate flights from San Juan 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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$21Average$46FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$50Average$138FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$58Average$77FlexibilityNo cancel feeOn-time69%
Silver AirwaysCheapest$58Average$116FlexibilityNo cancel feeOn-timeN/A
Cape AirCheapest$231Average$380FlexibilityNo cancel feeOn-time63%

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