AUS - SJU

$56 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 1/20. 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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Everything you should know

Cheapest round-trip
$194
Typical prices: $340-$475
Spirit Airlines
Mon 2/2Wed 2/4
AUS - SJU • 1 stop
Cheapest one-way
$56
Typical prices: $155-$231
Spirit Airlines
Tue 1/20
AUS - SJU • 1 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
Frontier
Cheapest • from $236 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 19% 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

Mon, Feb 2 - Wed, Feb 4
Spirit Airlines Logo
7:25 am - 3:35 pm
AUS
-
SJU
6h 10m1 stop
Spirit Airlines Logo
4:40 pm - 9:35 pm
SJU
-
AUS
6h 55m1 stop
$194Spirit Airlines
Sun, Jan 11 - Thu, Jan 15
Spirit Airlines Logo
4:59 pm - 9:47 am
AUS
-
SJU
14h 48m1 stop
Spirit Airlines Logo
4:40 pm - 9:35 pm
SJU
-
AUS
6h 55m1 stop
$195Spirit Airlines
Sat, Jan 17 - Fri, Jan 23
Multiple Airlines Logo
7:25 am - 12:32 pm
AUS
-
SJU
27h 07m1 stop
Multiple Airlines Logo
2:59 am - 10:34 am
SJU
-
AUS
33h 35m2 stops
$196Multiple Airlines
Tue, Jan 6 - Tue, Jan 13
JetBlue Logo
5:55 pm - 11:55 am
AUS
-
SJU
16h 00m1 stop
JetBlue Logo
6:01 am - 10:17 pm
SJU
-
AUS
18h 16m1 stop
$197JetBlue
Sun, Jan 18 - Wed, Jan 28
Multiple Airlines Logo
11:30 am - 1:20 am
AUS
-
SJU
11h 50m1 stop
Multiple Airlines Logo
4:40 pm - 9:35 pm
SJU
-
AUS
6h 55m1 stop
$198Multiple Airlines
Thu, Jan 1 - Wed, Jan 14
Multiple Airlines Logo
11:00 am - 1:24 am
AUS
-
SJU
12h 24m1 stop
Multiple Airlines Logo
4:40 pm - 9:35 pm
SJU
-
AUS
6h 55m1 stop
$200Multiple Airlines
Sat, Jan 17 - Fri, Jan 23
Multiple Airlines Logo
7:25 am - 12:32 pm
AUS
-
SJU
27h 07m1 stop
Multiple Airlines Logo
2:59 am - 10:34 am
SJU
-
AUS
33h 35m2 stops
$201Multiple Airlines
Sat, Jan 17 - Sat, Jan 24
Multiple Airlines Logo
7:25 am - 12:32 pm
AUS
-
SJU
27h 07m1 stop
Multiple Airlines Logo
6:00 am - 4:04 pm
SJU
-
AUS
12h 04m1 stop
$202Multiple Airlines
Thu, Jan 1 - Wed, Jan 14
Multiple Airlines Logo
11:00 am - 1:24 am
AUS
-
SJU
12h 24m1 stop
Multiple Airlines Logo
4:40 pm - 9:35 pm
SJU
-
AUS
6h 55m1 stop
$203Multiple Airlines
Fri, Jan 9 - Sat, Jan 17
Multiple Airlines Logo
11:30 am - 11:44 pm
AUS
-
SJU
10h 14m1 stop
Multiple Airlines Logo
12:14 pm - 6:34 pm
SJU
-
AUS
32h 20m2 stops
$204Multiple 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’s the cheapest day of the week to fly from Austin to San Juan?

The average price of all round-trip flights from Austin 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 Wednesday and more expensive on a Saturday. On your return trip to Austin, you should consider flying back on a Wednesday, and avoid Saturdays for better deals.

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 March, where the average cost of round-trip tickets is $626 and $503 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 1 week before departure. 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.
Airports
AUS

AUS offers live music on 8 stages, adding a unique Austin vibe to your departure experience. Check the AUS website for the schedule.

SJU

For a quick city transfer, taxis or Uber are efficient options from SJU to San Juan, taking about 25 minutes.

Our travel experts
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
Harriet Baskas

Harriet Baskas

Expert on AUS

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

Good to know

Low seasonOctober
Cheapest flight$56
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 44% 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

  • 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 $56 for a one-way ticket and $194 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 $508 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $383 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.
7.9
SouthwestOverall score based on 4250 reviews
7.0Food
7.5Entertainment
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

2.0 MediocreRobert, Dec 2025
LAS - TPA
Read more Southwest reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

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

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

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.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Attendants were pleasant and the flight was smooth and relaxed.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

I have a gluten allergy so did have any food

We were very rushed by a staff member at the gate when transferring from American Airlines to Fijian. Then the plane stayed put for ages anyhow! The plane was delayed and my bag sent to San Francisco instead of Fiji

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The only thing to like was that we eventually got to our destination

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

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

Other airlines flying to Austin

Flight deals from the most popular airlines with KAYAK users flying the route