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$70+ Cheap flights from Saint Thomas Island (STT) to San Juan

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
STT — SJU
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Cheapflights Tip: The best prices from Saint Thomas Island Cyril E King to San Juan are usually found in March or December, booked 22 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from Saint Thomas Island to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Saint Thomas Island (STT) to San Juan (PR1). 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 November 19, 2025.

Round-trip from

$119
(Expedia)

One-way from

$70
(JetBlue)

Popular in

October

Cheapest in

March

Average price

$119
From Saint Thomas Island Cyril E King to San Juan
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One-way flight from Saint Thomas Island Cyril E King to San Juan
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Highest demand for flights based on searches. 24% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Saint Thomas Island to San Juan

Cheapest flights from Saint Thomas Island to San Juan
Explore the most affordable flight options available from Saint Thomas Island to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 19, 2025.

This Expedia deal was found by Cheapflights users on 11/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:17 pmSTT - SJU
Nonstop0h 42mJetBlue
Thu 12/111:42 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 11/18$119
This JetBlue deal was found by Cheapflights users on 11/18. 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 12/302:55 pmSTT - SJU
Nonstop0h 44mJetBlue
Fri 1/21:24 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 11/18$129
This Priceline deal was found by Cheapflights users on 11/18. 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.
Wed 12/33:17 pmSTT - SJU
Nonstop0h 42mJetBlue
Wed 12/101:42 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 11/18$149
This JetBlue deal was found by Cheapflights users on 11/18. 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.
Wed 12/173:17 pmSTT - SJU
Nonstop0h 42mJetBlue
Mon 12/221:24 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 11/18$159
This Priceline deal was found by Cheapflights users on 11/16. 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.
Tue 12/163:17 pmSTT - SJU
Nonstop0h 42mJetBlue
Tue 12/231:24 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 11/16$169
This JetBlue deal was found by Cheapflights users on 11/18. 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.
Sun 12/212:55 pmSTT - SJU
Nonstop0h 44mJetBlue
Wed 12/241:24 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 11/18$174
This JetBlue deal was found by Cheapflights users on 11/18. 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.
Sat 12/63:16 pmSTT - SJU
Nonstop0h 42mJetBlue
Mon 12/151:42 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 11/18$179
This Priceline deal was found by Cheapflights users on 11/17. 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.
Tue 12/93:17 pmSTT - SJU
Nonstop0h 42mJetBlue
Thu 12/111:42 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 11/17$189
This Expedia deal was found by Cheapflights users on 11/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:46 pmSTT - SJU
Nonstop0h 42mJetBlue
Wed 11/262:08 pmSJU - STT
Nonstop0h 40mJetBlue
Deal found 11/17$199

Cheapflights Fare Finder

 
Customize your flight search to find flights from Saint Thomas Island to San Juan 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 November 19, 2025.
Use the filters below to find and compare flights from Saint Thomas Island to San Juan that are best for you.

Fly from

Saint Thomas Island

Fly to

San Juan

Route

Depart

Return

Price

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 1/31

5:15 pm-6:00 pm

Nonstop0h 45m

San Juan Luis Munoz Marin Intl

Tue 2/3

3:45 pm-4:20 pm

Nonstop0h 35m

$119

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Mon 3/2

3:30 pm-4:17 pm

Nonstop0h 47m

San Juan Luis Munoz Marin Intl

Fri 3/6

2:00 pm-2:35 pm

Nonstop0h 35m

$129

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Tue 12/30

2:55 pm-3:39 pm

Nonstop0h 44m

San Juan Luis Munoz Marin Intl

Fri 1/2

1:24 pm-2:00 pm

Nonstop0h 36m

$129

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Wed 1/7

5:15 pm-6:00 pm

Nonstop0h 45m

San Juan Luis Munoz Marin Intl

Thu 1/8

3:45 pm-4:20 pm

Nonstop0h 35m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Mon 3/2

3:30 pm-4:17 pm

Nonstop0h 47m

San Juan Luis Munoz Marin Intl

Thu 3/5

2:00 pm-2:35 pm

Nonstop0h 35m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Wed 12/17

3:17 pm-3:59 pm

Nonstop0h 42m

San Juan Luis Munoz Marin Intl

Wed 12/24

1:24 pm-2:00 pm

Nonstop0h 36m

$159

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 12/6

3:16 pm-3:58 pm

Nonstop0h 42m

San Juan Luis Munoz Marin Intl

Mon 12/15

1:42 pm-2:20 pm

Nonstop0h 38m

$179

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Fri 1/30

5:15 pm-6:00 pm

Nonstop0h 45m

San Juan Luis Munoz Marin Intl

Mon 2/2

3:45 pm-4:20 pm

Nonstop0h 35m

$179

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 12/20

2:20 pm-3:04 pm

Nonstop0h 44m

San Juan Luis Munoz Marin Intl

Mon 12/22

1:24 pm-2:00 pm

Nonstop0h 36m

$194

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 12/18

2:55 pm-3:39 pm

Nonstop0h 44m

San Juan Luis Munoz Marin Intl

Wed 12/24

1:24 pm-2:00 pm

Nonstop0h 36m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 18 results
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Best time to book a flight from Saint Thomas Island to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

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

Use this chart to determine the optimal time to book a round-trip flight from Saint Thomas Island to San Juan. Price data was last updated on November 14, 2025.

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Saint Thomas Island to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Saint Thomas Island to San Juan?

Currently, July is the cheapest month in which you can book a flight from Saint Thomas Island to San Juan (average of $17). Flying from Saint Thomas Island to San Juan in September is currently the most expensive (average of $112). 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 SJU?

Find hourly flight availability from Saint Thomas Island to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 19, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 87% on flights from Saint Thomas Island to San Juan by exploring options for tickets in the evening.

Weekly flight availability from Saint Thomas Island to San Juan

Explore weekly flight availability from Saint Thomas Island to San Juan. 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 November 19, 2025.

The most flights from STT to PR1 are scheduled on a Monday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated November 19, 2025.
Read reviews from past customers who have flown Cape Air, United Airlines, and JetBlue from Saint Thomas Island to San Juan. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cape Air
9.3
Wonderful
39 reviews

Entertainment

9.1

Food

8.9

Boarding

9.2

Comfort

8.8

Crew

9.5

Overall

9.3
Cape Air
9.3
Wonderful
39 reviews
Cape Air
9.3
Wonderful
39 reviews

Entertainment

9.1

Food

8.9

Boarding

9.2

Comfort

8.8

Crew

9.5

Overall

9.3
United Airlines
7.4
Good
9,023 reviews
Cape Air
9.3
Wonderful
39 reviews

Entertainment

9.1

Food

8.9

Boarding

9.2

Comfort

8.8

Crew

9.5

Overall

9.3
JetBlue
7.2
Good
2,902 reviews
Cape Air
9.3
Wonderful
39 reviews

Entertainment

9.1

Food

8.9

Boarding

9.2

Comfort

8.8

Crew

9.5

Overall

9.3
Frontier
5.8
Fair
3,106 reviews
Cape Air
9.3
Wonderful
39 reviews

Entertainment

9.1

Food

8.9

Boarding

9.2

Comfort

8.8

Crew

9.5

Overall

9.3
Silver Airways
5.7
Fair
237 reviews
Cape Air
9.3
Wonderful
39 reviews

Entertainment

9.1

Food

8.9

Boarding

9.2

Comfort

8.8

Crew

9.5

Overall

9.3

Related info for your journey

Find useful and relevant information for your journey from Saint Thomas Island to San Juan. 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 San Juan?

    Most people fly from Saint Thomas Island Cyril E King (STT) if they book a flight from Saint Thomas Island to San Juan. On average, Cyril E King has 16 outbound flights to San Juan per day from 5 airlines. Saint Thomas Island Cyril E King is conveniently located just 2.8 mi from Saint Thomas Island’s city center.

  • How long is the flight from Saint Thomas Island to San Juan?

    There are many flights that can get you from Saint Thomas Island to San Juan in 45m. Fly via JetBlue to get the fastest option. The distance from Saint Thomas Island to San Juan is about 68 mi. Most flights are nonstop.

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

    According to our current data, Frontier ($23), United Airlines ($58), and Silver Airways ($66) offers the cheapest pricing from Saint Thomas Island to San Juan. You may be able to fly from Saint Thomas Island to San Juan for 83% less than the average price by searching for these airlines.

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

    Before booking your flight to San Juan from Saint Thomas Island, check out the most reliable airlines to get you to your destination on time: Air Cargo Carriers (100%), Cape Air (83%), JetBlue( 77%).

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

    On average you can expect to pay $285 for a flight from Saint Thomas Island to San Juan. The cheapest flight overall is $69 while the most popular route, (Saint Thomas Island Cyril E King - San Juan Luis Munoz Marin Intl) is currently priced at $174.

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

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

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

    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 San Juan.

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

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

    Currently, July is the cheapest month in which you can book a flight from Saint Thomas Island to San Juan (average of $17). Flying from Saint Thomas Island to San Juan in September is currently the most expensive (average of $112). 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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Alternative routes for Saint Thomas Island to San Juan

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

Top 5 airlines flying from Saint Thomas Island to San Juan

Discover the top 5 airlines that operate flights from Saint Thomas Island to San Juan. 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 November 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$23Average$59FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$58Average$77FlexibilityNo cancel feeOn-time69%
Silver AirwaysCheapest$66Average$159FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$70Average$158FlexibilityNo cancel feeOn-time62%
Cape AirCheapest$170Average$338FlexibilityNo cancel feeOn-time63%

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