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San Juan

$114+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SJU
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
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 March 23, 2026.

This CheapOair deal was found by Cheapflights users on 3/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/84:14 pm
AUS
-
SJU
1 stop7h 38m
Multiple Airlines
Sat 4/1112:55 pm
SJU
-
AUS
1 stop12h 47m
Multiple Airlines
Deal found 3/23$236
This CheapOair deal was found by Cheapflights users on 3/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:59 pm
AUS
-
SJU
1 stop17h 50m
Spirit Airlines
Thu 4/1612:57 pm
SJU
-
AUS
1 stop11h 43m
Spirit Airlines
Deal found 3/18$237
This CheapOair deal was found by Cheapflights users on 3/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:12 am
AUS
-
SJU
1 stop11h 43m
Spirit Airlines
Thu 4/97:54 pm
SJU
-
AUS
1 stop29h 30m
Spirit Airlines
Deal found 3/18$240
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:14 pm
AUS
-
SJU
1 stop7h 38m
Multiple Airlines
Fri 4/1012:55 pm
SJU
-
AUS
1 stop12h 29m
Multiple Airlines
Deal found 3/22$241
This CheapOair deal was found by Cheapflights users on 3/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:12 am
AUS
-
SJU
1 stop16h 46m
Spirit Airlines
Wed 4/87:54 pm
SJU
-
AUS
1 stop29h 30m
Spirit Airlines
Deal found 3/18$242
This Frontier deal was found by Cheapflights users on 3/18. 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 3/18$243
This Travelocity deal was found by Cheapflights users on 3/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:12 pm
AUS
-
SJU
1 stop13h 42m
Multiple Airlines
Sat 5/212:57 pm
SJU
-
AUS
1 stop11h 43m
Multiple Airlines
Deal found 3/19$245
This Frontier deal was found by Cheapflights users on 3/22. 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.
Sun 5/38:59 pm
AUS
-
SJU
1 stop11h 55m
Frontier
Thu 5/73:03 am
SJU
-
AUS
1 stop8h 42m
Frontier
Deal found 3/22$246
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:14 pm
AUS
-
SJU
1 stop7h 38m
Multiple Airlines
Thu 4/912:55 pm
SJU
-
AUS
1 stop12h 29m
Multiple Airlines
Deal found 3/22$249
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Wed 4/86:12 am
AUS
-
SJU
1 stop11h 43m
Spirit Airlines
Thu 4/97:54 pm
SJU
-
AUS
1 stop21h 10m
Spirit Airlines
Deal found 3/20$250
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:12 am
AUS
-
SJU
1 stop11h 43m
Multiple Airlines
Wed 4/153:21 am
SJU
-
AUS
1 stop15h 56m
Multiple Airlines
Deal found 3/22$251
This Trip.com deal was found by Cheapflights users on 3/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:12 am
AUS
-
SJU
1 stop11h 43m
Multiple Airlines
Thu 4/166:00 am
SJU
-
AUS
1 stop18h 40m
Multiple Airlines
Deal found 3/19$252

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 March 23, 2026.

Round-trip from

$237
(CheapOair)

One-way from

$114
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$459
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 ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 23, 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 4/14

5:25 am-1:25 pm

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Tue 4/21

6:15 am-12:44 pm

1 stop7h 29m

$314

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 9/2

5:40 am-4:35 pm

1 stop9h 55m

San Juan Luis Munoz Marin Intl

Tue 9/22

7:30 am-1:41 pm

1 stop7h 11m

$336

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 5/15

8:25 am-11:40 pm

1 stop14h 15m

San Juan Luis Munoz Marin Intl

Wed 5/20

8:10 am-6:25 pm

2 stops11h 15m

$364

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 9/9

8:20 am-7:00 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Wed 9/16

6:00 am-4:20 pm

2 stops11h 20m

$416

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 9/9

8:20 am-7:00 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Wed 9/23

6:00 am-4:20 pm

2 stops11h 20m

$416
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 7/8

3:15 pm-11:45 pm

1 stop7h 30m

San Juan Luis Munoz Marin Intl

Sun 7/12

7:00 pm-12:10 am

1 stop6h 10m

$416

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 4/25

12:14 pm-9:24 pm

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Fri 5/1

1:00 am-4:20 pm

2 stops16h 20m

$420

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 5/2

7:00 am-11:50 pm

2 stops15h 50m

San Juan Luis Munoz Marin Intl

Fri 5/8

1:00 am-3:24 pm

2 stops15h 24m

$426

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 8/6

7:44 pm-5:29 am

1 stop8h 45m

San Juan Luis Munoz Marin Intl

Tue 8/11

1:00 am-9:35 am

1 stop9h 35m

$444

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 8/1

5:05 am-3:50 pm

1 stop9h 45m

San Juan Luis Munoz Marin Intl

Sat 8/8

6:25 am-2:25 pm

2 stops9h 00m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 22 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?

Use this chart to determine the optimal time to book a round-trip flight from Austin to San Juan. Price data was last updated on March 13, 2026.

Booking 87 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, September is the cheapest month in which you can book a flight from Austin to San Juan (average of $116). Flying from Austin to San Juan in August is currently the most expensive (average of $198). 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 March 23, 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 March 23, 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
8.0
Very good
4,324 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
8.0
Very good
4,324 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
8,319 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
9,462 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
11,489 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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.
Frontier
5.7
Fair
3,019 reviews
Southwest
8.0
Very good
4,324 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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 7h. 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 $120, 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 Delta and Frontier - these airlines can fly you to your destination from $132 and $139, 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 United Airlines ($122).

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

    Looking at all options, your cheapest flight can be booked for $204. While the most popular route (Austin Bergstrom - San Juan Luis Munoz Marin Intl) can be booked for $214 on average, our data indicates $354 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, Bayfront Park, or Bayside Marketplace. Kaseya Center, Bayfront Park, and Bayside Marketplace 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 $29 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, Walt Disney World Resort, and International Drive. Those on a layover in Orlando interested in visiting Universal Orlando Resort, Walt Disney World Resort, or International Drive can do so by traveling 10.2 mi, 16.2 mi, and 9.9 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, Fox Theatre, and Centennial Olympic Park more than any other attractions. Georgia Aquarium, Fox Theatre, and Centennial Olympic Park are located about 8.6 mi, 9.3 mi, and 8.4 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 $57 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, September is the cheapest month in which you can book a flight from Austin to San Juan (average of $116). Flying from Austin to San Juan in August is currently the most expensive (average of $198). 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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$120Average$329FlexibilityNo cancel feeOn-time65%
DeltaCheapest$132Average$355FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$139Average$299FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$225Average$433FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$245Average$415FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$260Average$465FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$303Average$518FlexibilityNo cancel feeOn-time62%

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