AUS - SJU

$145 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 6/2. 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
$276
Typical prices: $510-$325
Frontier
Wed 8/5Sun 8/9
AUS - SJU • 1 stop
Cheapest one-way
$145
Typical prices: $174-$300
Frontier
Tue 6/2
AUS - SJU • 2 stops
Advice from real travelers
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
Nonstop flights
1 day a week
Sat
You can fly direct with Southwest. Average duration is 4h 25m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $276 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $211 (round-trip)
Shortest trip • 7h 00m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 7% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
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Start a new search
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 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

Wed, Aug 5 - Sun, Aug 9
Frontier Logo
10:37 am - 2:11 am
AUS
-
SJU
14h 34m
1 stop
Frontier Logo
4:05 pm - 9:37 am
SJU
-
AUS
18h 32m
1 stop
$276Frontier
Sat, May 16 - Tue, May 19
Frontier Logo
11:30 am - 2:08 am
AUS
-
SJU
13h 38m
1 stop
Frontier Logo
6:00 am - 10:35 am
SJU
-
AUS
29h 35m
1 stop
$281Frontier
Sat, May 16 - Fri, May 29
Frontier Logo
11:30 am - 2:08 am
AUS
-
SJU
13h 38m
1 stop
Frontier Logo
3:03 am - 10:50 am
SJU
-
AUS
8h 47m
1 stop
$295Frontier
Wed, Jun 24 - Sun, Jun 28
Frontier Logo
10:37 am - 7:55 am
AUS
-
SJU
20h 18m
1 stop
Frontier Logo
4:05 pm - 9:52 am
SJU
-
AUS
18h 47m
1 stop
$301Frontier
Sat, Aug 8 - Sat, Aug 15
Frontier Logo
5:23 pm - 7:57 am
AUS
-
SJU
13h 34m
1 stop
Frontier Logo
6:00 am - 4:38 pm
SJU
-
AUS
11h 38m
1 stop
$303Frontier
Sat, May 16 - Tue, May 19
Frontier Logo
11:30 am - 10:43 pm
AUS
-
SJU
10h 13m
1 stop
Frontier Logo
3:03 am - 10:35 am
SJU
-
AUS
8h 32m
1 stop
$306Frontier
Sat, Jun 13 - Tue, Jun 30
Multiple Airlines Logo
12:44 pm - 12:15 am
AUS
-
SJU
10h 31m
2 stops
Multiple Airlines Logo
5:38 pm - 12:45 pm
SJU
-
AUS
20h 07m
1 stop
$307Multiple Airlines
Sat, May 9 - Fri, May 15
Frontier Logo
9:13 pm - 12:21 am
AUS
-
SJU
50h 08m
2 stops
Frontier Logo
5:15 pm - 11:49 am
SJU
-
AUS
19h 34m
1 stop
$308Frontier
Fri, May 15 - Tue, May 19
Multiple Airlines Logo
8:48 pm - 6:35 pm
AUS
-
SJU
20h 47m
1 stop
Multiple Airlines Logo
6:00 am - 4:52 pm
SJU
-
AUS
11h 52m
2 stops
$310Multiple Airlines
Sat, May 9 - Tue, May 19
Frontier Logo
11:30 am - 10:43 pm
AUS
-
SJU
10h 13m
1 stop
Frontier Logo
3:03 am - 10:35 am
SJU
-
AUS
8h 32m
1 stop
$311Frontier
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 August.

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 $334 (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 $457 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 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 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$145
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 43% 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 $145 for a one-way ticket and $276 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 MAX 8 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Austin and San Juan, with SkyTeam 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 $458 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 $349 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.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $456 or less round-trip.

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 4314 reviews
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Plane was late. Zero service for 2+ hour flight and it was not that bumpy.

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

It's a long flight and I would have liked better snacks between lunch and the arrival meal. It's fine to have fruit and nuts but I really don't like ramen because it's salty junk soup. I'd suggest sandwiches. They're not expensive nor are they hard to store for a long flight. The FA's had a couple of big services and they were super busy preparing, executing and then cleaning up. Then they disappeared.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

I purchased ticket so our daughter ( a minor) can sit next to her mother. No help at gate after kayak insisted that this could be done. She ended sitting by herself

Flight was as expected. But it was delayed an hour. Also, my luggage got damaged. So that sucked especially since the damage made navigating the airport difficult. Walking to get ground transportation is sooo far away now and my checked bag was difficult to carry.

we were an hour delayed after boarding and given no reason. Headsets cost money. Also there were openrows with no one setting in them but we were told we were not allowed to swtich.

Crew was very friendly. Did not like being jammed in the back middle seat. Don’t understand why I can not select an aisle for free based on first come first serve. Also first time I’ve been on a flight which attempted land then circled Detroit airport multiple times.

Terrible. There was a lot of misleading information regarding ticketing, seat upgrades, & boarding group. I also expect my seat will recline. I have back problems & it is very painful for me of the seat doesn’t recline. In addition, when I choose a fare that allows me a carry-on bag, I expect to be able to carry it on. Not be forced to check it. Thos happened on my flight to MCO & back to Boston. Not sure I will ever fly JetBlue again. Further I bought the ticket through hat deal. I will NEVER do that again. They were incapable of providing an accurate record locator # for either leg of the trip. I had to call them before each flight with me VERY stressed about whether I would actually be able to get on my flight. Who does that? Who books flight & then FAILS to give an accurate record locator? Twice!

The flight was delayed 4 hours and the JetBlue people at the counter kept lying to us and telling us it was due to weather however all other flights were going in and out of NY and FL. Then they lied that the plane had to stop to refuel. Then they lied and said the plane needed a tire change. JetBlue is the worst. Then they gave a lot of people meal vouchers however I didn’t know they did that and they didn’t offer anything to me.

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

The staff was nice. I appreciated that I was able to take an earlier flight, even though it was last minute. The boarding process felt rather chaotic.

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

Returned home with a blood clot from flight homes and the uncomfortable aircraft I was on.

The crew was very kind, but no in-flight entertainment monitors and a 2 hour and 30 minute delay was extremely frustrating.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

It was really a terrific experience both going and returning on AA. Staff and crew were professional.

I was able to get the AA customer Service desk to put me on an earlier flight without any issues.

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