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Luis Munoz Marin Intl

$80+ Cheap flights from Saint Thomas Island (STT) to Luis Munoz Marin Intl (SJU)

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
STT — SJU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Saint Thomas Island Cyril E King to San Juan Luis Munoz Marin Intl are usually found in November or September, booked 64 days in advance, depart on a Friday or Monday and return on a Friday

Cheap flight deals from Saint Thomas Island to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Saint Thomas Island (STT) to Luis Munoz Marin Intl (SJU). 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 September 11, 2025.

Round-trip from

$139
(JetBlue)

One-way from

$80
(JetBlue)

Popular in

July

Cheapest in

November

Average price

$78

Good round-trip deal

$148 or less

Good one-way deal

$145 or less
From Saint Thomas Island Cyril E King to San Juan Luis Munoz Marin Intl
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One-way flight from Saint Thomas Island Cyril E King to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 23% potential increase in price ($35 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 September 2025
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Price to beat on a round-trip flight from Saint Thomas Island Cyril E King to San Juan Luis Munoz Marin Intl.
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Price to beat on a one-way flight from Saint Thomas Island Cyril E King to San Juan Luis Munoz Marin Intl.
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Find flight deals from Saint Thomas Island to Luis Munoz Marin Intl

Cheapest flights from Saint Thomas Island to Luis Munoz Marin Intl
Explore the most affordable flight options available from Saint Thomas Island to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This JetBlue deal was found by Cheapflights users on 9/10. 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 9/203:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Fri 9/261:55 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 9/10$139
This JetBlue deal was found by Cheapflights users on 9/9. 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 10/163:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Sat 11/11:46 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 9/9$149
This JetBlue deal was found by Cheapflights users on 9/9. 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 10/23:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Sat 10/41:55 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 9/9$159
This JetBlue deal was found by Cheapflights users on 9/9. 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.
Fri 10/33:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Mon 10/61:55 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 9/9$169
This JetBlue deal was found by Cheapflights users on 9/9. 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.
Mon 10/133:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Thu 10/301:03 pmSJU - STT
Nonstop0h 37mJetBlue
Deal found 9/9$179
This JetBlue deal was found by Cheapflights users on 9/9. 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.
Mon 10/133:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Sat 11/11:46 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 9/9$189
This JetBlue deal was found by Cheapflights users on 9/9. 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.
Fri 10/173:25 pmSTT - SJU
Nonstop0h 35mJetBlue
Wed 10/2912:58 pmSJU - STT
Nonstop0h 37mJetBlue
Deal found 9/9$199
This JetBlue deal was found by Cheapflights users on 9/9. 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 10/23:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Thu 10/91:55 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 9/9$204
This JetBlue deal was found by Cheapflights users on 9/9. 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.
Fri 10/173:25 pmSTT - SJU
Nonstop0h 35mJetBlue
Sat 11/11:46 pmSJU - STT
Nonstop0h 38mJetBlue
Deal found 9/9$209
This JetBlue deal was found by Cheapflights users on 9/9. 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 10/23:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Fri 10/101:55 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 9/9$219
This Priceline deal was found by Cheapflights users on 9/9. 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.
Fri 9/123:30 pmSTT - SJU
Nonstop0h 40mJetBlue
Sun 9/141:55 pmSJU - STT
Nonstop0h 36mJetBlue
Deal found 9/9$224
This JetBlue deal was found by Cheapflights users on 9/9. 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 10/154:35 pmSTT - SJU
Nonstop0h 35mJetBlue
Wed 10/2912:58 pmSJU - STT
Nonstop0h 37mJetBlue
Deal found 9/9$239

Cheapflights Fare Finder

 
Customize your flight search to find flights from Saint Thomas Island to Luis Munoz Marin Intl 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 September 11, 2025.
Use the filters below to find and compare flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Saint Thomas Island

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sun 10/19

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Thu 10/30

1:03 pm-1:40 pm

Nonstop0h 37m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Fri 10/3

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Sun 10/5

1:55 pm-2:35 pm

Nonstop0h 40m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 9/25

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Sun 9/28

1:55 pm-2:31 pm

Nonstop0h 36m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 1/10

5:15 pm-6:00 pm

Nonstop0h 45m

San Juan Luis Munoz Marin Intl

Sat 1/17

3:45 pm-4:20 pm

Nonstop0h 35m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 10/16

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Wed 10/29

12:58 pm-1:35 pm

Nonstop0h 37m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Mon 3/2

4:10 pm-5:02 pm

Nonstop0h 52m

San Juan Luis Munoz Marin Intl

Fri 3/6

2:40 pm-3:15 pm

Nonstop0h 35m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 10/18

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Wed 10/29

12:58 pm-1:35 pm

Nonstop0h 37m

$139

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 10/16

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Mon 11/3

1:42 pm-2:20 pm

Nonstop0h 38m

$149

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Thu 10/16

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Sat 11/1

1:46 pm-2:24 pm

Nonstop0h 38m

$149

Saint Thomas IslandSan Juan

STT - SJU

STTSJU

Saint Thomas Island Cyril E King

Sat 10/18

3:30 pm-4:10 pm

Nonstop0h 40m

San Juan Luis Munoz Marin Intl

Sat 11/1

1:46 pm-2:24 pm

Nonstop0h 38m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results
1
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The best insider tips for Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport trip
Airports
STT

Enjoy quick screening times at STT with easy check-in and departure, making it one of the most convenient airports in Florida.

Read more about STTby Mark Chesnut
SJU

For a quick ride from SJU, use Uber for convenience and cashless payment, available outside arrivals.

Read more about SJUby Brandon Schultz
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on STT

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more
Brandon Schultz

Brandon Schultz

Expert on SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Saint Thomas Island to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Saint Thomas Island to Luis Munoz Marin Intl. Price data was last updated on August 29, 2025.

The best time to book flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport 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 SJU?

Find hourly flight availability from Saint Thomas Island to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 35% on flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport by exploring options for tickets at noon.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated September 11, 2025.
See what other customers who have flown with United Airlines, JetBlue, and Frontier from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport have to say. 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
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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
7.2
Good
2,913 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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
5.8
Fair
3,177 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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??
Silver Airways
5.8
Fair
242 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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 Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl?

    If you book a flight to San Juan Luis Munoz Marin Intl from Saint Thomas Island, you will be flying from Cyril E King, which is the city’s only airport. Saint Thomas Island Cyril E King (STT) is located 2.8 mi from the center of Saint Thomas Island. There are 17 flights from Cyril E King to San Juan Luis Munoz Marin Intl per day from 5 different airlines.

  • How long is the flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport?

    Airlines like JetBlue fly from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport in about 40m. The time it takes to get you to your destination is usually consistent. The distance between Saint Thomas Island and San Juan Luis Munoz Marin Intl Airport is about 68 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport round-trip?

    Cheapflights users have booked flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport round-trip from $24. Other airlines that can offer you cheap pricing are JetBlue, from $54, and United Airlines, from $58. Frontier is 78% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport?

    Before booking your flight to San Juan Luis Munoz Marin Intl Airport from Saint Thomas Island, check out the most reliable airlines to get you to your destination on time: Air Cargo Carriers (100%), JetBlue (70%), Qatar Airways( 65%).

  • What are the cheapest flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport?

    The cheapest flight price from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport is $88. On average you can expect to pay $278. The most popular route, (Saint Thomas Island Cyril E King - San Juan Luis Munoz Marin Intl), can usually be booked for $174.

  • Can I find deals for flights from Saint Thomas Island to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Saint Thomas Island to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Saint Thomas Island to Luis Munoz Marin Intl?

    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 Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Saint Thomas Island to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Saint Thomas Island to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Alternative routes for Saint Thomas Island to Luis Munoz Marin Intl

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

Top 5 airlines flying from Saint Thomas Island to Luis Munoz Marin Intl

Discover the top 5 airlines that operate flights from Saint Thomas Island to Luis Munoz Marin Intl. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$24Average$60FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$54Average$141FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$58Average$77FlexibilityNo cancel feeOn-time69%
Silver AirwaysCheapest$66Average$149FlexibilityNo cancel feeOn-timeN/A
Cape AirCheapest$170Average$329FlexibilityNo cancel feeOn-time63%

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