AUS - SJU

$112 Find Cheap Flights from Austin 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 Austin to San Juan departing on 4/15. 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 Austin to San Juan.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to San Juan.
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$178
Typical prices: $349-$560
Spirit Airlines
Tue 2/24Thu 3/5
AUS - SJU • 1 stop
Cheapest non-stop
$710
Southwest
Sat 2/14Sat 2/21
AUS - SJU • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
AUS features live music on 8 stages for travelers.
Efficient taxis or Uber take 25 minutes to San Juan.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Spirit Airlines
Cheapest • from $178 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 18% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
1 day a week
There are direct flights from Austin to San Juan 1 day a week: Sat.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
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We hope you love your trip to San Juan!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Austin to San Juan (AUS-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin 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 Austin to San Juan

Tue, Feb 24 - Thu, Mar 5
Spirit Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Spirit Airlines Logo
6:00 am - 4:04 pm
SJU
-
AUS
12h 04m
1 stop
$178Spirit Airlines
Tue, Feb 24 - Sat, Feb 28
Multiple Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Multiple Airlines Logo
7:05 am - 8:53 pm
SJU
-
AUS
15h 48m
2 stops
$181Multiple Airlines
Mon, Apr 27 - Mon, May 4
Frontier Logo
8:36 pm - 9:54 am
AUS
-
SJU
12h 18m
1 stop
Frontier Logo
6:30 am - 7:46 pm
SJU
-
AUS
14h 16m
1 stop
$182Frontier
Tue, Feb 24 - Thu, Mar 5
Spirit Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Spirit Airlines Logo
6:00 am - 4:04 pm
SJU
-
AUS
12h 04m
1 stop
$183Spirit Airlines
Tue, Mar 3 - Thu, Mar 5
Spirit Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Spirit Airlines Logo
6:00 am - 4:04 pm
SJU
-
AUS
12h 04m
1 stop
$184Spirit Airlines
Tue, Feb 24 - Wed, Mar 4
Multiple Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Multiple Airlines Logo
5:45 pm - 9:36 am
SJU
-
AUS
41h 51m
2 stops
$185Multiple Airlines
Tue, Mar 3 - Wed, Mar 11
Spirit Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Spirit Airlines Logo
5:00 am - 4:04 pm
SJU
-
AUS
12h 04m
1 stop
$186Spirit Airlines
Tue, Feb 24 - Wed, Feb 25
Multiple Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Multiple Airlines Logo
4:06 pm - 10:29 am
SJU
-
AUS
20h 23m
2 stops
$189Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Multiple Airlines Logo
11:07 am - 11:13 pm
SJU
-
AUS
14h 06m
2 stops
$190Multiple Airlines
Tue, Mar 3 - Mon, Mar 9
Spirit Airlines Logo
7:15 am - 3:31 pm
AUS
-
SJU
6h 16m
1 stop
Spirit Airlines Logo
5:00 am - 4:04 pm
SJU
-
AUS
12h 04m
1 stop
$191Spirit Airlines
Booking Insights

KAYAK's insights & trends for Austin to San Juan flights

Get data-powered insights and trends into flights from Austin 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 Austin 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 Austin to San Juan Luis Munoz Marin Intl Airport departing in February.

What is the cheapest month to fly from Austin 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 Austin 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 Austin to San Juan Luis Munoz Marin Intl Airport is October, where tickets cost $350 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $609 and $475 respectively.

How far in advance should I book a flight from Austin 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 Austin 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 Austin to San Juan Luis Munoz Marin Intl Airport, you should book around 4 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from Austin 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
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.

Harriet Baskas

Harriet Baskas

Expert on AUS

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.

Good to know

Low seasonOctober
Cheapest flight$112
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 42% increase in price.
Flight from Austin to San Juan

When to book flights from Austin to San Juan

Are your dates flexible? Find out the best times to travel from Austin 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 Austin to San Juan flights

  • How many flights are there between Austin and San Juan Luis Munoz Marin Intl Airport per day?

    There is a maximum of 1 nonstop flight a day that takes off from Austin and lands in San Juan Luis Munoz Marin Intl Airport, with an average flight time of 4h 25m. The most common departure time is 10:00 am and most flights take off in the morning. Each week, there are 1 flights.

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

    In the last 3 days, the lowest price for a flight from Austin to San Juan Luis Munoz Marin Intl Airport was $112 for a one-way ticket and $178 for a round-trip.

  • Do I need a passport to fly between Austin and San Juan?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Austin and on arrival in San Juan.

  • Which airports will I be using when flying from Austin to San Juan?

    Austin airport is called Austin Bergstrom and the only airport in San Juan is San Juan Luis Munoz Marin Intl.

  • Which aircraft models fly most regularly from Austin to San Juan?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Austin to San Juan flight route.

  • Which airline alliances offer flights from Austin to San Juan?

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

  • On which days can I fly direct from Austin to San Juan?

    You can catch a nonstop flight from Austin to San Juan on Saturday.

  • Which is the best airline for flights from Austin to San Juan, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Austin to San Juan are Southwest and Delta. With an average price for the route of $491 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $382 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Austin 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 Austin to San Juan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Austin 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 Austin 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 Austin with another airline. Booking your flights between Austin 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 Austin 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 Austin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Austin to San Juan?

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

Direct departures

Austin Bergstrom to San Juan Luis Munoz Marin Intl

Saturday

Southwest

Southwest

See more direct flights

Direct returns

San Juan Luis Munoz Marin Intl to Austin Bergstrom

Saturday

Southwest

Southwest

See more direct flights

Reviews of the top 5 airlines serving from Austin to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Austin 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 Austin 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.
8.0
SouthwestOverall score based on 4267 reviews
8.6Crew
7.0Food
7.5Entertainment
8.1Boarding
8.0Comfort
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

The professionals have excellent customer service, the seats don´t have enough space.

Flight delay and multiple gate changes including a change near boarding time to another terminal, which in DFW is a pain. Pre-boarding delay and also a further delay on the ground after boarding. About an hour and a half total delay.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

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.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

Everything you need to know for your flight from Austin to San Juan

Other airlines flying to Austin

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