STT - SJU

$47 Find Cheap Flights from Saint Thomas Island to San Juan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Saint Thomas Island to San Juan departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Saint Thomas Island to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Saint Thomas Island to San Juan, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Saint Thomas Island to San Juan (STT-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Saint Thomas Island to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Saint Thomas Island to San Juan

Fri, Jul 18 - Mon, Jul 28
Frontier Logo
5:14 pm - 6:08 pmSTT-SJU
0h 54mnonstop
Frontier Logo
3:37 pm - 4:29 pmSJU-STT
0h 52mnonstop
$95Frontier
Find Deal
Fri, Jul 11 - Mon, Jul 14
Frontier Logo
5:14 pm - 6:08 pmSTT-SJU
0h 54mnonstop
Frontier Logo
3:37 pm - 4:29 pmSJU-STT
0h 52mnonstop
$99Frontier
Find Deal
Fri, Jul 25 - Mon, Jul 28
Frontier Logo
5:14 pm - 6:08 pmSTT-SJU
0h 54mnonstop
Frontier Logo
3:37 pm - 4:29 pmSJU-STT
0h 52mnonstop
$106Frontier
Find Deal
Wed, Aug 6 - Mon, Aug 11
JetBlue Logo
2:23 pm - 3:10 pmSTT-SJU
0h 47mnonstop
JetBlue Logo
12:50 pm - 1:28 pmSJU-STT
0h 38mnonstop
$109JetBlue
Find Deal
Fri, Aug 22 - Mon, Aug 25
JetBlue Logo
2:23 pm - 3:10 pmSTT-SJU
0h 47mnonstop
JetBlue Logo
12:50 pm - 1:28 pmSJU-STT
0h 38mnonstop
$134JetBlue
Find Deal
Wed, Jul 9 - Fri, Jul 11
 Logo
2:05 pm - 2:40 pmSTT-SJU
0h 35mnonstop
 Logo
3:37 pm - 4:29 pmSJU-STT
0h 52mnonstop
Fri, Jul 25 - Sun, Jul 27
 Logo
5:14 pm - 6:08 pmSTT-SJU
0h 54mnonstop
 Logo
12:55 pm - 1:30 pmSJU-STT
0h 35mnonstop
Thu, Jul 10 - Mon, Jul 14
Cape Air Logo
2:05 pm - 2:40 pmSTT-SJU
0h 35mnonstop
Cape Air Logo
8:00 am - 10:38 amSJU-STT
2h 38m1 stop
$407Cape Air
Find Deal
Wed, Aug 6 - Sun, Aug 10
Cape Air Logo
8:39 am - 5:00 pmSTT-SJU
8h 21m1 stop
Cape Air Logo
3:05 pm - 3:40 pmSJU-STT
0h 35mnonstop
$592Cape Air
Find Deal
Fri, Dec 19 - Sat, Dec 20
United Airlines Logo
1:05 pm - 10:22 pmSTT-SJU
9h 17m1 stop
United Airlines Logo
2:05 am - 12:00 pmSJU-STT
9h 55m1 stop
$3,317United Airlines
Find Deal
Expert advice

Expert advice for your flight from Saint Thomas Island to San Juan

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
JetBlue

JetBlue's Blue Basic now allows a carry-on, aligning with other basic economy fares.


Enjoy free gate-to-gate Wi-Fi and seatback screens with live TV on JetBlue flights.

Read more about JetBlueby Harriet Baskas
Silver Airways

Silver Airways offers value-conscious pricing with no Wi-Fi or snacks, focusing on quick, efficient travel.


Choose Escape fares for great value; seat selection is separate but affordable.

Frontier

Frontier's Economy Bundle includes a carry-on and seat selection, ideal for budget-conscious travelers.


Opt for Premium Bundle for priority boarding and extra legroom, just $20 more than Economy.

Read more about Frontierby Stefanie Waldek
Airports
STT

Arrive at STT at least three hours before departure to clear customs, especially on busy days like Saturdays.

Read more about STTby Marisa Garcia
SJU

For quick access to San Juan, consider Uber or taxis, which are convenient and have fixed rates from SJU.

Read more about SJUby Gabriel Leigh
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on JetBlue

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Paul Rubio

Paul Rubio

Expert on Silver Airways

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Marisa Garcia

Marisa Garcia

Expert on STT

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Useful Info

KAYAK's insights & trends for Saint Thomas Island to San Juan flights

Get data-powered insights and trends into flights from Saint Thomas Island to San Juan to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport?

What’s the cheapest day of the week to fly from Saint Thomas Island to San Juan?

The average price of all round-trip flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to San Juan on a Friday and more expensive on a Tuesday. On your return trip to Saint Thomas Island, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport is November, where tickets cost $67 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $150 and $148 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonMay
High seasonAugust
Cheapest flight$47
Best time to beat the crowds but there is an average 36% increase in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Saint Thomas Island to San Juan

When to book flights from Saint Thomas Island to San Juan

Are your dates flexible? Find out the best times to travel from Saint Thomas Island to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Saint Thomas Island to San Juan flights

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

    In the last 3 days, the lowest price for a flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport was $47 for a one-way ticket and $95 for a round-trip.

  • Do I need a passport to fly between Saint Thomas Island and San Juan?

    Yes, you’ll need a passport to travel to San Juan from Saint Thomas Island.

  • Which airlines offer Wi-Fi service onboard planes from Saint Thomas Island to San Juan?

    Delta, JetBlue, and American Airlines offer inflight Wi-Fi service on the Saint Thomas Island to San Juan flight route.

  • Which aircraft models fly most regularly from Saint Thomas Island to San Juan?

    The Cessna light aircraft is the aircraft model that flies most regularly on the Saint Thomas Island to San Juan flight route.

  • Which airline alliances offer flights from Saint Thomas Island to San Juan?

    oneworld, and Star Alliance are the airline alliances operating flights between Saint Thomas Island and San Juan, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Saint Thomas Island to San Juan?

    There are nonstop flights from Saint Thomas Island to San Juan on a daily basis.

  • Which is the best airline for flights from Saint Thomas Island to San Juan, Cape Air or United Airlines?

    The two airlines most popular with KAYAK users for flights from Saint Thomas Island to San Juan are Cape Air and United Airlines. With an average price for the route of $283 and an overall rating of 9.1, Cape Air is the most popular choice. United Airlines is also a great choice for the route, with an average price of $77 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Saint Thomas Island to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Saint Thomas Island to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Saint Thomas Island to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Saint Thomas Island is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Saint Thomas Island to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Saint Thomas Island with another airline. Booking your flights between Saint Thomas Island and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Saint Thomas Island to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Saint Thomas Island up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $93 or less one-way and $158 or less round-trip.

Prefer to fly direct from Saint Thomas Island to San Juan?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Saint Thomas Island Cyril E King to San Juan Luis Munoz Marin Intl.
Find which airlines fly direct from Saint Thomas Island Cyril E King Airport to San Juan Luis Munoz Marin Intl Airport, which days they fly and book direct flights.

Direct departures

Saint Thomas Island Cyril E King to San Juan Luis Munoz Marin Intl

Monday

Cape Air, Frontier, JetBlue, +1 more

Cape Air, Frontier, +2 more

Tuesday

Cape Air, JetBlue

Cape Air, JetBlue

Wednesday

Cape Air, JetBlue

Cape Air, JetBlue

Thursday

Cape Air, JetBlue, United Airlines

Cape Air, JetBlue, +1 more

Friday

Cape Air, Frontier, JetBlue

Cape Air, Frontier, +1 more

Saturday

Cape Air, JetBlue, Qatar Airways, +1 more

Cape Air, JetBlue, +2 more

Sunday

Cape Air, JetBlue

Cape Air, JetBlue

See more direct flights

Direct returns

San Juan Luis Munoz Marin Intl to Saint Thomas Island Cyril E King

Monday

Cape Air, Frontier, JetBlue

Cape Air, Frontier, +1 more

Tuesday

Cape Air, JetBlue

Cape Air, JetBlue

Wednesday

Cape Air, JetBlue

Cape Air, JetBlue

Thursday

Cape Air, JetBlue

Cape Air, JetBlue

Friday

Cape Air, Frontier, JetBlue

Cape Air, Frontier, +1 more

Saturday

Cape Air, JetBlue, United Airlines

Cape Air, JetBlue, +1 more

Sunday

Cape Air, JetBlue, United Airlines

Cape Air, JetBlue, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Saint Thomas Island to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Saint Thomas Island to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Saint Thomas Island to San Juan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
9.1
Cape AirOverall score based on 35 reviews
8.7Food
9.3Crew
8.7Comfort
8.9Boarding
8.9Entertainment
Airline reviews

It was good. It was convenient and frequent enough to be a very useful flight to reach more regional hubs. I felt comfortable enough to sleep. During the flight but loved seeing the countryside when I was awake.

10.0 ExcellentAnonymous, Jun 2025SDY - BIL
Read more Cape Air reviews

It was good. It was convenient and frequent enough to be a very useful flight to reach more regional hubs. I felt comfortable enough to sleep. During the flight but loved seeing the countryside when I was awake.

It’s less complicated from Culebra to SJU airport. Next time I will prefer to leave from Isla Grande airport to Culebra !!

10 seat Cesna. Equal parts transportation and adventure. 20 minute hop at 10000 feet and 160 mph, sitting 10 feet from the pilot. Panoramic views of the island. Very simple boarding, very low stress. VQS airport tiny, undeveloped. Highly recommended flight, Cape Air doing a great job here.

We traveled in a small Cesna so there was no food or entertainment. The pilot was excellent enjoy being able to see the places we were flying above. It was an OK flight.

Very smooth flight and landing. Pilot delivered his safety instruction in such a monotone that it wasn’t easily understandable. Words were said but he didn't communicate to us. If he was communicating to someone he cared about, he would have used inflection and other nuances of speaking. Virtually all emphasis was removed so it was just blah blah blah (really fast, like the end of a Pharma commercial)

My pilot on Cape Air was AMAZING!!!! I hoping that next time I fly I have him as my pilot. He made me feel safe and secure in his skills.

I so appreciate this service into and out of Glendive. Always a good experience with crew and support team.

It was not what I had expected but it was a great way to see the landscape.

Pros: "ground crew, pilot, flight was smooth and gate connections to Jet Blue in Boston were fantastic!"
Cons: "leg room"

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Food and flight attendents with positive dispositions and friendly behavior, more professional attitudes

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

Staff was generally seeming stressed out and was a bit rude and slow. Plane left late. Pilot was very well-spoken.

I liked that the flight to Kosice was on time, the service was excellent and we arrived to Vienna early. The only thing I did not like, is that I had to pay for my suitcase $75. Bummer

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

Late out of the gate, late to takeoff. No screens on plane. Uncomfortable window seat.

My flight was completely full. Making me very stressful with people walking around all the time. I believe airlines can do better for entertain people during the flight.

Short flying. The seats do not recline at all and very uncomfortable.

Basics were there, but a 5:15 flight with almost no food ans no entertainment, it is quite long.

You get what you pay for with JetBlue. Every little thing costs more, you are nickel and dimed until the end. Entertainment doesn’t function. Flight attendants do the bare minimum.

The check in and boarding process was a bit of a cluster. Two people at the counter to check in, three random lines that nobody knew which was for what, and people kept getting shuffled from one line to another for no apparent reason because then they’d get shuffled back and end up getting out further back in the line than they were originally. I only had to hand my already checked bag over and it took 45 minutes. I was never assigned a seat so when I tried to board I was pulled out of line again while someone had to try to manually assign me a seat. During the flight I got up to go to the bathroom, and there was an attendant in the aisle offering pillows etc and it was a 30 min wait unbuckled standing by the bathrooms because she said I couldn’t go past her. First and last time flying jet blue to be honest.

The flight departed more than 1 hour late. Leg room is bigger than most airlines

Very well organized both boarding and deplaning. Very satisfied with the service I received.

Flight was on time arrived at the destination 10min early they kept in touch via email

In flight on demand didn't work at our seats. Only a single beverage/snack run.

Little snafu at boarding. Staff communicated with gate poorly. Flight attendant was rude making disembark early. This was an older mint class. Needs an overhaul for sure. Food was good. The male flight attendant was really nice.

In-flight staff was very helpful and excellent. However, the flight was delayed by 90 minutes. Also the boarding process should be expedited in case of delayed flights. This will help the passengers trying to make international connections.

They announced at the last minute that international travelers had to checkin at counter. This created a long line and unnecessary stress.

terrible. Because I felt very unwell during the flight. How do they leave a woman alone in the middle of 2 men? an obese man who was falling on top of me.

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

I liked the price of the flight and the chance to buy a seat with no person seated in the middle seat.. Also the flight was right on time.

It was a no frills flight. Would have liked to be able to charge my device

The flight itself was ok and the pilot was very communicative. However, our flight was delayed for almost 3 hours, the gate was changed 3 times and there was no communication as we were waiting. The flight staff was overall a little crabby...I understand as they probably had a long day but we all did.

The flight left over two hours late. They charged me $180 to bring a carry on. There was an error with the spelling of my name and Frontair agent lied that I would need to pay $200 for her to fix the spelling, and pressured me that if I don't do it quick I would lose the flight. I called back and another agent said it costs $75 to fix. All in all, this company is a complete scam.

Very easy with the app to board and staff skills

I took my first and last flight with FRONTIER. The seats are not able to be reclined so it’s not a very comfortable experience when you take a flight of 3 hours or longer. You must pay for your luggage either carry on or check in, so taking all this in consideration at the end what you think you’re saving your paying in services that should be included. Not a beverage in sight. . You’re seriously better off getting on a proper airline such as Delta, AA, United, etc.

Airline is in bankrupt and they didn't communicate it to customers

The outgoing flight tpa to fll was seriously delayed due to a frontal system impacting the incoming flight from key west. Weather is not under the control of the airline, better to arrive late than never! Thank you Silver Airways for your caution.

They canceled the flight and no longer fly out of Orlando. Trying to get my money refunded. Lost a night I paid for in Key West.

There was no serving off food on the flight being that it was so short.

The flight was VERY, VERY hot and the blowers weren't cooling it off...don't know what the problem was, but.....otherwise it was fine.

My flight from Avianca was 45 minutes late and it's very complicated to recheck in in ...also I have to say the silver desk folks were neither efficient nor helpful...so I missed my connecting flight. I actually got there before tge flight left but they refused to let me on....and gave me no vouchers for hotel etc

The cancelled our flight 3 times and we never made it to our destination. Every single airplane had a maintenance problem. Never fly this airline

9 hrs wait in airport then flt redirected to airport an hour away from our booked airport. Then at 8:00pm flight Cancelled. Silver supposed to book us on American the next day. Booked my husband but not me. Cost me Ubers, hotel, meals, new ticket and 1 hour taxi Cuz no flights to our home airport. Absolute disaster. Silver staff had no idea what was going on or what to do. Never Again Silver

Nothing about this flight was good. They are always cancelling or grossly delayed. We were delayed for 45 minutes for no apparent reason with no explanation or anything we could see and I missed my connection to Durham NC. I was on my way to my best friends memorial and funeral. Now I'll missed them both!!

Total disaster! The easiest flight was kept delayed till … cancelled! And before official announcement of the flight cancellation I was offered to join ongoing boarding to FLL so I had to change all my traveling plans, have lost my car reservation and a payed spot at the meeting I was going for to begin with! I had to no show to my flight back, because it was from different airport again!

Everything you need to know for your flight from Saint Thomas Island to San Juan

Information on your arrival and departure airports

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