STT - SJU

$100 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 9/9. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$179
Typical prices: $248-$132
JetBlue
Thu 9/10Mon 9/14
STT - SJU • Non-stop
Cheapest one-way
$100
Typical prices: $89-$163
JetBlue
Wed 9/9
STT - SJU • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue Blue Basic includes a carry-on; Frontier Economy Bundle adds seat choice.
Silver Escape fares keep costs low, while JetBlue adds free Wi-Fi and live TV.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $179 (round-trip)
Best reviews • 9.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Cape Air and JetBlue. Average duration is 0h 36m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
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+1
+1
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+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Juan!
Flight Deals
Booking Insights
Expert advice
Flight 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

Thu, Sep 10 - Mon, Sep 14
JetBlue Logo
3:40 pm - 4:25 pm
STT
-
SJU
0h 45mnonstop
JetBlue Logo
2:05 pm - 2:41 pm
SJU
-
STT
0h 36mnonstop
$179JetBlue
Mon, Aug 17 - Sat, Aug 22
JetBlue Logo
4:27 pm - 5:11 pm
STT
-
SJU
0h 44mnonstop
JetBlue Logo
2:40 pm - 3:17 pm
SJU
-
STT
0h 37mnonstop
$189JetBlue
Sun, Oct 18 - Tue, Oct 20
JetBlue Logo
4:54 pm - 5:36 pm
STT
-
SJU
0h 42mnonstop
JetBlue Logo
3:19 pm - 3:54 pm
SJU
-
STT
0h 35mnonstop
$199JetBlue
Thu, Jul 23 - Mon, Jul 27
JetBlue Logo
3:38 pm - 4:20 pm
STT
-
SJU
0h 42mnonstop
JetBlue Logo
2:10 pm - 2:48 pm
SJU
-
STT
0h 38mnonstop
$214JetBlue
Tue, Jul 28 - Sat, Aug 15
JetBlue Logo
4:08 pm - 4:50 pm
STT
-
SJU
0h 42mnonstop
JetBlue Logo
2:40 pm - 3:17 pm
SJU
-
STT
0h 37mnonstop
$229JetBlue
Wed, Jul 15 - Mon, Jul 20
JetBlue Logo
3:38 pm - 4:20 pm
STT
-
SJU
0h 42mnonstop
JetBlue Logo
2:10 pm - 2:48 pm
SJU
-
STT
0h 38mnonstop
$237JetBlue
Tue, Jul 14 - Tue, Jul 21
JetBlue Logo
4:08 pm - 4:50 pm
STT
-
SJU
0h 42mnonstop
JetBlue Logo
2:41 pm - 3:18 pm
SJU
-
STT
0h 37mnonstop
$239JetBlue
Tue, Jul 14 - Tue, Jul 21
JetBlue Logo
12:57 pm - 1:32 pm
STT
-
SJU
0h 35mnonstop
JetBlue Logo
2:41 pm - 3:18 pm
SJU
-
STT
0h 37mnonstop
$249JetBlue
Tue, Jul 14 - Tue, Jul 21
Multiple Airlines Logo
12:57 pm - 1:32 pm
STT
-
SJU
0h 35mnonstop
Multiple Airlines Logo
2:41 pm - 3:18 pm
SJU
-
STT
0h 37mnonstop
$254Multiple Airlines
Fri, Jul 10 - Sat, Jul 18
Multiple Airlines Logo
12:48 pm - 1:29 pm
STT
-
SJU
0h 41mnonstop
Multiple Airlines Logo
2:20 pm - 2:57 pm
SJU
-
STT
0h 37mnonstop
$259Multiple Airlines
Booking Insights

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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport departing in September.

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 Monday and more expensive on a Tuesday. On your return trip to Saint Thomas Island, you should consider flying back on a Monday, and avoid Tuesdays 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 August, where tickets cost $128 (return) on average. On the other hand, the most expensive months are May and October, where the average cost of round-trip tickets is $293 and $288 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, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Paul Rubio

Paul Rubio

Expert on Silver Airways

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.

Harriet Baskas

Harriet Baskas

Expert on JetBlue

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.

Stefanie Waldek

Stefanie Waldek

Expert on Frontier

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.

Marisa Garcia

Marisa Garcia

Expert on STT

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.

Gabriel Leigh

Gabriel Leigh

Expert on SJU

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.

Good to know

Low seasonNovember
Cheapest flight$100
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 42% 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 5 days, the lowest price for a flight from Saint Thomas Island to San Juan Luis Munoz Marin Intl Airport was $100 for a one-way ticket and $179 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.

  • 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 JetBlue?

    The two airlines most popular with KAYAK users for flights from Saint Thomas Island to San Juan are Cape Air and JetBlue. With an average price for the route of $367 and an overall rating of 9.3, Cape Air is the most popular choice. JetBlue is also a great choice for the route, with an average price of $234 and an overall rating of 7.1.

  • 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 $230 or less one-way and $293 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,JetBlue

Cape Air,JetBlue

Tuesday

Cape Air,JetBlue

Cape Air,JetBlue

Wednesday

Cape Air,JetBlue

Cape Air,JetBlue

Thursday

Cape Air,JetBlue

Cape Air,JetBlue

Friday

Cape Air,JetBlue

Cape Air,JetBlue

Saturday

Cape Air,JetBlue

Cape Air,JetBlue

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,JetBlue

Cape Air,JetBlue

Tuesday

Cape Air,JetBlue

Cape Air,JetBlue

Wednesday

Cape Air,JetBlue

Cape Air,JetBlue

Thursday

Cape Air,JetBlue

Cape Air,JetBlue

Friday

Cape Air,JetBlue

Cape Air,JetBlue

Saturday

Cape Air,JetBlue

Cape Air,JetBlue

Sunday

Cape Air,JetBlue

Cape Air,JetBlue

See more direct flights

Reviews of the top 3 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.
9.3
Cape AirOverall score based on 33 reviews
8.6Comfort
9.0Boarding
8.7Food
8.9Entertainment
9.4Crew
Airline reviews

We were the only ones on the plane to Culebra, and left 24 minutes early. Flight was beautiful to boot!

10.0 ExcellentAnonymous, Oct 2025
CPX - SJU
Read more Cape Air reviews

We were the only ones on the plane to Culebra, and left 24 minutes early. Flight was beautiful to boot!

Cape Air was great. Kayak was very poor. No ticket to print or explanation that they transferred to another service.

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.

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

The flight was delayed for more than 3 hours the flight attendant was so angry, it was my first flight with JetBlue but i don’t think I flight with them again.

We had better-than-average leg room and I loved the access to shows and movies. During boarding, we could not hear the agent even though we were close to the boarding door, which was kind of scary when we realized that half of the passengers had already boarded. Also, the entertainment was awesome, but I could not hear the movie as well as I would have liked, because my headphones were crappy. It would have been better if I could connect my own ear buds via Bluetooth or if JetBlue provided headphones.

Direct tv did not work on flight Short flight so no good service offered Arrived early to destination and had to wait for gate to open. Deplaned LATER than if we arrived on time!! Poor planning Jet blue has had something go wrong on every flight I’ve taken with them in last five years. Terribly run airline

Disaster This is why I stick to delta You get what you pay for

Messy plane that was falling apart Small screens that didn't work

I was traveling with two small kids and our TV s were the only ones not working. Informed the flight attendant who did nothing about them.

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Zero issues with this flight. Crew was outstanding and flight was super. Plane was clean and fine. The seats need more padding and water should be provided without cost. I recognize it's Frontier but there are some things that should still be part of the flight. But still very satisfied with the experience and quality.

It was an early flight and most people napped/slept and the crew let us which was nice.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

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

Information on your arrival and departure airports