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$128+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SJU
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Austin Bergstrom to San Juan are usually found in September or February, booked 85 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 abril 29, 2025.

Round-trip from

$267
(Cheapflightsfares)

One-way from

$128
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$394
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. 12% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 29, 2025.

This Delta deal was found by Cheapflights users on 4/28. 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.
jue. 9/186:45 amAUS - SJU
1 stop8h 23mDelta
mié. 9/245:19 pmSJU - AUS
1 stop8h 08mDelta
Deal found 4/28$255
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/247:25 pmAUS - SJU
1 stop14h 20mSpirit Airlines
mié. 5/284:05 pmSJU - AUS
1 stop7h 58mSpirit Airlines
Deal found 4/27$267
This Frontier deal was found by Cheapflights users on 4/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/88:15 pmAUS - SJU
1 stop11h 43mFrontier
sáb. 5/1012:05 amSJU - AUS
1 stop10h 52mFrontier
Deal found 4/29$298
This Priceline deal was found by Cheapflights users on 4/28. 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.
sáb. 5/177:14 amAUS - SJU
1 stop10h 53mMultiple Airlines
sáb. 5/2412:59 amSJU - AUS
1 stop10h 35mMultiple Airlines
Deal found 4/28$303
This deal was found by Cheapflights users on 4/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/177:00 amAUS - SJU
1 stop6h 47mAmerican Airlines
jue. 9/253:55 pmSJU - AUS
1 stop9h 20mAmerican Airlines
Deal found 4/29$311
This United Airlines deal was found by Cheapflights users on 4/28. 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.
mar. 9/237:05 amAUS - SJU
1 stop7h 37mUnited Airlines
mar. 9/231:05 amSJU - AUS
2 stops10h 53mUnited Airlines
Deal found 4/28$340
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/175:15 amAUS - SJU
1 stop12h 30mSouthwest
sáb. 5/245:25 amSJU - AUS
2 stops9h 50mSouthwest
Deal found 4/28$381

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 abril 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

sáb. 5/24

7:25 pm-10:45 am

1 stop14h 20m

San Juan Luis Munoz Marin Intl

mié. 5/28

4:05 pm-11:03 pm

1 stop7h 58m

$267

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

jue. 5/8

8:15 pm-8:58 am

1 stop11h 43m

San Juan Luis Munoz Marin Intl

sáb. 5/10

12:05 am-9:57 am

1 stop10h 52m

$298

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

sáb. 5/17

7:14 am-7:07 pm

1 stop10h 53m

San Juan Luis Munoz Marin Intl

sáb. 5/24

12:59 am-10:34 am

1 stop10h 35m

$303

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

mar. 5/13

8:00 am-4:31 pm

1 stop7h 31m

San Juan Luis Munoz Marin Intl

jue. 5/29

7:30 am-1:38 pm

1 stop7h 08m

$320

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

lun. 5/19

7:00 am-4:36 pm

2 stops8h 36m

San Juan Luis Munoz Marin Intl

vie. 5/23

7:15 am-9:01 pm

1 stop14h 46m

$321

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

mié. 6/4

1:00 pm-11:54 pm

1 stop9h 54m

San Juan Luis Munoz Marin Intl

vie. 8/15

7:45 am-4:30 pm

1 stop9h 45m

$361

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

sáb. 5/17

5:15 am-6:45 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

sáb. 5/24

5:25 am-2:15 pm

2 stops9h 50m

$381

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

mié. 5/28

6:07 pm-11:10 am

1 stop16h 03m

$128

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

sáb. 6/7

7:14 am-8:18 pm

1 stop12h 04m

$129

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

jue. 7/10

10:35 am-10:23 pm

1 stop10h 48m

$133

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 14 results
1
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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 April 25, 2025.

Booking 85 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 December is currently the most expensive (average of $336). 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 abril 29, 2025.

It’s typically best to fly out from Austin to San Juan in the afternoon. Doing so could potentially save you 35% 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 June 30, 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.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 abril 29, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Austin to San Juan. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Food

7.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Food

7.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,936 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Food

7.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Food

7.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Food

7.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Spirit Airlines
6.3
Okay
7,961 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Food

7.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

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

    Currently priced at $267, 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 $298 and $320, respectively. You may be able to fly from Austin to San Juan for 39% 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 American Airlines ($128), Spirit Airlines ($129), and Delta ($133).

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

    Looking at all options, your cheapest flight can be booked for $123. While the most popular route (Austin Bergstrom - San Juan Luis Munoz Marin Intl) can be booked for $255 on average our data indicates $542 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 Atlanta in terms of the most popular layover location on flights from Austin to San Juan. Dallas 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 $24 per day.

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

    The majority of Atlanta visitors spend their time at Georgia Aquarium, Fox Theatre, and World of Coca-Cola. Those on a layover in Atlanta interested in visiting Georgia Aquarium, Fox Theatre, or World of Coca-Cola can do so by traveling 8.6 mi, 9.3 mi, and 8.6 mi, respectively from Atlanta Hartsfield-Jackson. Those on a layover in Atlanta in need of a rental car can book one at Atlanta Hartsfield-Jackson for about $55.

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

    Dallas travelers tend to visit American Airlines Center, Dallas World Aquarium, and Reunion Tower more than any other attractions. American Airlines Center, Dallas World Aquarium, and Reunion Tower are located about 15.0 mi, 15.5 mi, and 15.6 mi, respectively from Dallas/Fort Worth. Those landing in Dallas looking to spend some time exploring during their layover can rent a car for about $58 per day.

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

    Austin to San Juan flights have a layover in Charlotte least often. Charlotte is followed by Houston in terms of the least popular layover location on flights from Austin to San Juan. Houston is followed by Orlando 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 December is currently the most expensive (average of $336). 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.

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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 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$198FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$195Average$302FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$242Average$375FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$263Average$445FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$492FlexibilityNo cancel feeOn-time69%
DeltaCheapest$319Average$425FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$365Average$573FlexibilityNo cancel feeOn-time63%

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