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San Juan

$113+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SJU
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Austin Bergstrom to San Juan are usually found in September or October, booked 66 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 July 29, 2025.

Round-trip from

$246
(CheapOair)

One-way from

$113
(Delta)

Popular in

December

Cheapest in

September

Average price

$465
From Austin Bergstrom to San Juan
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One-way flight from Austin Bergstrom to San Juan
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Highest demand for flights based on searches. 14% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 29, 2025.

This CheapOair deal was found by Cheapflights users on 7/29. 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.
Mon 8/118:22 pmAUS - SJU
1 stop14h 40mMultiple Airlines
Fri 8/156:00 amSJU - AUS
1 stop13h 34mMultiple Airlines
Deal found 7/29$246
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1112:10 pmAUS - SJU
1 stop10h 44mAmerican Airlines
Mon 10/207:05 pmSJU - AUS
1 stop15h 58mAmerican Airlines
Deal found 7/29$250
This FlightHub deal was found by Cheapflights users on 7/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:15 amAUS - SJU
1 stop13h 33mSpirit Airlines
Mon 9/81:59 amSJU - AUS
2 stops20h 40mSpirit Airlines
Deal found 7/26$251
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:00 amAUS - SJU
1 stop14h 50mFrontier
Sat 9/134:42 pmSJU - AUS
1 stop25h 43mFrontier
Deal found 7/29$254
This United Airlines deal was found by Cheapflights users on 7/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:00 amAUS - SJU
1 stop9h 00mUnited Airlines
Sat 11/158:10 amSJU - AUS
1 stop9h 50mUnited Airlines
Deal found 7/26$266
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1310:45 amAUS - SJU
1 stop10h 15mDelta
Sat 9/207:30 amSJU - AUS
1 stop10h 45mDelta
Deal found 7/29$300

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 July 29, 2025.
Use the filters below to find and compare flights from Austin to San Juan that are best for you.

Fly from

Austin

Fly to

San Juan

Route

Depart

Return

Price

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 8/11

8:22 pm-12:02 pm

1 stop14h 40m

San Juan Luis Munoz Marin Intl

Fri 8/15

6:00 am-6:34 pm

1 stop13h 34m

$246

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 10/11

12:10 pm-11:54 pm

1 stop10h 44m

San Juan Luis Munoz Marin Intl

Mon 10/20

7:05 pm-10:03 am

1 stop15h 58m

$250

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 8/25

7:15 am-9:48 pm

1 stop13h 33m

San Juan Luis Munoz Marin Intl

Mon 9/8

1:59 am-9:39 pm

2 stops20h 40m

$251

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 8/30

11:00 am-2:50 am

1 stop14h 50m

San Juan Luis Munoz Marin Intl

Sat 9/13

4:42 pm-5:25 pm

1 stop25h 43m

$254

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/13

10:45 am-10:00 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Sat 9/20

7:30 am-5:15 pm

1 stop10h 45m

$300

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 8/26

8:00 am-4:36 pm

1 stop7h 36m

$113

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 8/24

1:37 pm-10:56 pm

1 stop8h 19m

$115

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 8/4

10:21 am-6:59 pm

1 stop7h 38m

$133

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 8/25

7:15 am-9:48 pm

1 stop13h 33m

$135

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 10/15

9:45 am-11:57 pm

2 stops13h 12m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 11 results
1
2

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 July 25, 2025.

Booking 66 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 $254). Flying from Austin to San Juan in June is currently the most expensive (average of $339). 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 July 29, 2025.

It’s typically best to fly out from Austin to San Juan in the afternoon. Doing so could potentially save you 33% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Austin to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Austin to San Juan. Price data was last updated on October 13, 2024.

Travelers seeking maximum savings on their Austin to San Juan flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 29, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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.
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,040 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.9
Fair
3,238 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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. 6 airlines have flights to San Juan from Austin Bergstrom on a regular basis.

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

    Currently priced at $250, American Airlines will fly you from Austin to San Juan and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Frontier - these airlines can fly you to your destination from $251 and $254, respectively. You may be able to fly from Austin to San Juan for 43% 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 Delta ($113), American Airlines ($115), and Frontier ($133).

  • 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 Wynwood Art District, Bayfront Park, or Bayside Marketplace. Wynwood Art District, Bayfront Park, and Bayside Marketplace are located about 5.5 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 $25 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 Walt Disney World Resort, Universal Orlando Resort, and International Drive. Those on a layover in Orlando interested in visiting Walt Disney World Resort, Universal Orlando Resort, or International Drive can do so by traveling 16.2 mi, 10.2 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 $35.

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

    Atlanta travelers tend to visit Georgia Aquarium, Fox Theatre, and Tabernacle more than any other attractions. Georgia Aquarium, Fox Theatre, and Tabernacle are located about 8.6 mi, 9.3 mi, and 8.3 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 $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. Dallas is followed by Charlotte in terms of the least popular layover location for Austin to San Juan flights.

  • 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 $254). Flying from Austin to San Juan in June is currently the most expensive (average of $339). 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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Alternative routes for Austin to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Austin to San Juan

Discover the top 6 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$144Average$282FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$177Average$332FlexibilityNo cancel feeOn-time65%
DeltaCheapest$264Average$396FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$436FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$294Average$552FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$300Average$473FlexibilityNo cancel feeOn-time69%

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