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San Juan

$140+ Cheap flights from Austin (AUS) to San Juan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SJU
Jun 4 — Jun 111
Thu 6/4
Thu 6/11
1 adult, Economy
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Cheap flight deals from Austin to San Juan

Cheapest flights from Austin to San Juan
Explore the most affordable flight options available from Austin to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 5, 2026.

This Priceline deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:37 am
AUS
-
SJU
1 stop29h 44m
Frontier
Tue 6/166:00 am
SJU
-
AUS
1 stop28h 52m
Frontier
Deal found 4/30$301
This Expedia deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:42 pm
AUS
-
SJU
1 stop13h 13m
Frontier
Sun 6/216:16 pm
SJU
-
AUS
1 stop16h 36m
Frontier
Deal found 5/1$303
This Priceline deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:30 am
AUS
-
SJU
1 stop19h 34m
Frontier
Fri 5/223:03 am
SJU
-
AUS
1 stop8h 47m
Frontier
Deal found 4/30$311
This Priceline deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:37 am
AUS
-
SJU
1 stop11h 52m
Frontier
Sun 8/163:06 am
SJU
-
AUS
1 stop7h 31m
Frontier
Deal found 5/3$321
This Frontier deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:42 pm
AUS
-
SJU
1 stop13h 15m
Frontier
Thu 7/93:06 am
SJU
-
AUS
1 stop7h 31m
Frontier
Deal found 5/4$323
This Priceline deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:42 pm
AUS
-
SJU
1 stop7h 27m
Frontier
Sat 6/276:00 am
SJU
-
AUS
1 stop11h 50m
Frontier
Deal found 5/1$331
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:30 am
AUS
-
SJU
1 stop10h 13m
Frontier
Fri 5/83:03 am
SJU
-
AUS
1 stop8h 42m
Frontier
Deal found 4/30$335
This Priceline deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:30 am
AUS
-
SJU
1 stop10h 13m
Frontier
Tue 5/126:00 am
SJU
-
AUS
1 stop29h 35m
Frontier
Deal found 5/1$339
This Priceline deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:23 pm
AUS
-
SJU
1 stop7h 48m
Frontier
Sun 7/199:24 am
SJU
-
AUS
1 stop25h 13m
Frontier
Deal found 5/2$340
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:23 pm
AUS
-
SJU
1 stop7h 48m
Frontier
Sat 7/186:00 am
SJU
-
AUS
1 stop11h 38m
Frontier
Deal found 4/30$343
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:38 pm
AUS
-
SJU
2 stops21h 27m
Frontier
Tue 8/113:06 am
SJU
-
AUS
1 stop7h 31m
Frontier
Deal found 5/4$344
This Priceline deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:35 am
AUS
-
SJU
1 stop19h 29m
Frontier
Tue 8/46:31 pm
SJU
-
AUS
1 stop16h 06m
Frontier
Deal found 5/4$345

Find flight deals from Austin to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 5, 2026.

Round-trip from

$301
(Priceline)

One-way from

$140
(Frontier)

Popular in

December

Cheapest in

October

Average price

$407
From Austin Bergstrom to San Juan
Search Deals
One-way flight from Austin Bergstrom to San Juan
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 5, 2026.
Use the filters below to find and compare flights from Austin to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 8/4

5:30 am-4:45 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Tue 8/11

7:30 am-3:47 pm

1 stop9h 17m

$356

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 9/8

10:52 am-10:23 pm

1 stop10h 31m

San Juan Luis Munoz Marin Intl

Fri 9/11

2:26 pm-11:03 pm

1 stop9h 37m

$356

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 8/8

5:15 am-4:37 pm

1 stop10h 22m

San Juan Luis Munoz Marin Intl

Thu 8/13

6:48 am-5:19 pm

1 stop11h 31m

$356
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 8/20

1:34 pm-10:29 pm

1 stop7h 55m

San Juan Luis Munoz Marin Intl

Thu 8/27

12:56 pm-8:22 pm

1 stop8h 26m

$356

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/5

6:45 am-4:35 pm

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Wed 9/9

5:45 pm-12:19 am

1 stop7h 34m

$356

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 8/6

12:15 pm-8:38 pm

1 stop7h 23m

San Juan Luis Munoz Marin Intl

Wed 8/12

1:00 am-9:35 am

1 stop9h 35m

$374

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 8/13

6:20 am-4:55 pm

2 stops9h 35m

San Juan Luis Munoz Marin Intl

Tue 8/18

6:00 am-4:20 pm

2 stops11h 20m

$416

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 8/13

6:20 am-4:55 pm

2 stops9h 35m

San Juan Luis Munoz Marin Intl

Mon 8/17

5:30 am-8:00 pm

2 stops15h 30m

$416

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/5

8:35 am-6:15 pm

2 stops8h 40m

San Juan Luis Munoz Marin Intl

Wed 9/9

1:45 pm-9:45 pm

2 stops9h 00m

$427

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 8/14

11:40 am-10:15 pm

2 stops9h 35m

San Juan Luis Munoz Marin Intl

Mon 8/17

5:30 am-8:00 pm

2 stops15h 30m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/3

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Austin to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Austin to San Juan?

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Austin to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Austin to San Juan?

Currently, February is the cheapest month in which you can book a flight from Austin to San Juan (average of $84). Flying from Austin to San Juan in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to SJU?

Find hourly flight availability from Austin to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 5, 2026.

When flying from Austin to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Austin to San Juan?

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated May 5, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Austin to San Juan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,305 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
7.9
Good
4,305 reviews
Southwest
7.9
Good
4,305 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,460 reviews
Southwest
7.9
Good
4,305 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,683 reviews
Southwest
7.9
Good
4,305 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
JetBlue
7.2
Good
2,977 reviews
Southwest
7.9
Good
4,305 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,667 reviews
Southwest
7.9
Good
4,305 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Austin to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Austin to San Juan?

    For a flight from Austin to San Juan, you will be flying from Austin Bergstrom. Austin Bergstrom (AUS) is just 7.5 mi from the center of the city. Austin Bergstrom is the only Austin airport and it handles 0 outbound flights to San Juan per day. 7 airlines have flights to San Juan from Austin Bergstrom on a regular basis.

  • How long is the flight from Austin to San Juan?

    Departing from Austin to San Juan will take you 8h 40m. There are 2142 mi between Austin and San Juan. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Austin to San Juan round-trip?

    Currently priced at $119, Spirit Airlines will fly you from Austin to San Juan and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $135 and $200, respectively. You may be able to fly from Austin to San Juan for 71% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Austin to San Juan one-way?

    The cheapest airlines for a one-way flight from Austin to San Juan are Spirit Airlines ($58), Frontier ($84), and Southwest ($122).

  • What are the cheapest flights from Austin to San Juan?

    Looking at all options, your cheapest flight can be booked for $164. While the most popular route (Austin Bergstrom - San Juan Luis Munoz Marin Intl) can be booked for $276 on average, our data indicates $438 when flying from Austin to San Juan.

  • Where are the most common layover locations when flying from Austin to San Juan?

    Austin to San Juan flights have a layover in Miami most of the time. Miami is followed by Orlando in terms of the most popular layover location on flights from Austin to San Juan. Atlanta sees the third most layovers on flights from Austin to San Juan.

  • What are some popular things to do or see while on a layover in Miami?

    If you're on a layover in Miami and looking for things to do, consider visiting Kaseya Center, Bayside Marketplace, or Bayfront Park. Kaseya Center, Bayside Marketplace, and Bayfront Park are located about 6.2 mi, 6.4 mi, and 6.4 mi, respectively from Miami. Those landing in Miami looking to spend some time exploring during their layover can rent a car for about $26 per day.

  • What are some popular points of interest to see during a layover in Orlando?

    The majority of Orlando visitors spend their time at Universal Orlando Resort, Universal's Islands of Adventure, and Central Florida Fairgrounds. Those on a layover in Orlando interested in visiting Universal Orlando Resort, Universal's Islands of Adventure, or Central Florida Fairgrounds can do so by traveling 10.2 mi, 10.2 mi, and 11.7 mi, respectively from Orlando. Those on a layover in Orlando in need of a rental car can book one at Orlando for about $29.

  • What are points of interest worth seeing during a layover in Atlanta?

    Atlanta travelers tend to visit Georgia Aquarium, Centennial Olympic Park, and Fox Theatre more than any other attractions. Georgia Aquarium, Centennial Olympic Park, and Fox Theatre are located about 8.6 mi, 8.4 mi, and 9.3 mi, respectively from Atlanta Hartsfield-Jackson. Those landing in Atlanta looking to spend some time exploring during their layover can rent a car for about $60 per day.

  • Where are the least popular layover locations for Austin to San Juan flights?

    Austin to San Juan flights have a layover in Houston least often. Houston is followed by Dallas in terms of the least popular layover location on flights from Austin to San Juan.

  • Can I find deals for flights from Austin to San Juan that include hotel bookings?

    Yes. In addition to deals on Austin to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to San Juan.

  • Can I find deals for business class flights from Austin to San Juan?

    Yes. Cheapflights offers flight deals from Austin to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to San Juan?

    Currently, February is the cheapest month in which you can book a flight from Austin to San Juan (average of $84). Flying from Austin to San Juan in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 7 airlines flying from Austin to San Juan

Discover the top 7 airlines that operate flights from Austin to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$119Average$332FlexibilityNo cancel feeOn-time65%
FrontierCheapest$135Average$305FlexibilityNo cancel feeOn-time62%
DeltaCheapest$200Average$347FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$225Average$444FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$245Average$414FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$260Average$458FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$308Average$532FlexibilityNo cancel feeOn-time62%

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