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$123+ Cheap flights from San Juan to Austin (AUS)

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — AUS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Austin Bergstrom are usually found in January or October, booked 68 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from San Juan to Austin

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Austin (AUS). 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 September 17, 2025.

Round-trip from

$237
(Frontier)

One-way from

$123
(Delta)

Popular in

March

Cheapest in

January

Average price

$350
From San Juan to Austin Bergstrom
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One-way flight from San Juan to Austin Bergstrom
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Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Juan to Austin

Cheapest flights from San Juan to Austin
Explore the most affordable flight options available from San Juan to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Frontier deal was found by Cheapflights users on 9/16. 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 10/295:51 pmSJU - AUS
2 stops24h 10mFrontier
Sun 11/210:34 amAUS - SJU
1 stop12h 58mFrontier
Deal found 9/16$237
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/302:35 pmSJU - AUS
1 stop7h 24mAmerican Airlines
Mon 11/37:30 amAUS - SJU
1 stop11h 18mAmerican Airlines
Deal found 9/15$245
This Frontier deal was found by Cheapflights users on 9/16. 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 9/2412:28 amSJU - AUS
1 stop10h 45mFrontier
Mon 9/295:29 pmAUS - SJU
2 stops15h 27mFrontier
Deal found 9/16$249
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 11/67:15 amSJU - AUS
1 stop11h 26mAmerican Airlines
Sun 11/96:12 amAUS - SJU
1 stop12h 46mAmerican Airlines
Deal found 9/16$250
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/243:34 pmSJU - AUS
1 stop17h 34mAmerican Airlines
Sun 10/266:13 amAUS - SJU
1 stop16h 41mAmerican Airlines
Deal found 9/16$259
This Frontier deal was found by Cheapflights users on 9/15. 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.
Thu 9/259:26 pmSJU - AUS
2 stops20h 08mFrontier
Sun 9/2811:03 amAUS - SJU
1 stop11h 20mFrontier
Deal found 9/15$277
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Wed 11/192:59 amSJU - AUS
1 stop8h 31mSpirit Airlines
Thu 12/48:48 pmAUS - SJU
1 stop11h 04mSpirit Airlines
Deal found 9/15$281
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/241:05 amSJU - AUS
2 stops13h 03mUnited Airlines
Mon 10/275:30 amAUS - SJU
1 stop9h 06mUnited Airlines
Deal found 9/16$282
This Priceline deal was found by Cheapflights users on 9/16. 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.
Thu 10/232:49 amSJU - AUS
1 stop7h 02mSpirit Airlines
Mon 10/279:56 amAUS - SJU
1 stop14h 48mSpirit Airlines
Deal found 9/16$283

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Austin 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 September 17, 2025.
Use the filters below to find and compare flights from San Juan to Austin that are best for you.

Fly from

San Juan

Fly to

Austin

Route

Depart

Return

Price

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Wed 10/29

7:30 am-3:51 pm

1 stop9h 21m

Austin Bergstrom

Tue 11/4

12:15 pm-9:26 pm

1 stop7h 11m

$245

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Thu 2/19

6:15 am-4:19 pm

1 stop12h 04m

Austin Bergstrom

Mon 2/23

12:35 pm-11:49 pm

1 stop9h 14m

$245

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Wed 12/24

3:30 pm-8:44 pm

1 stop7h 14m

Austin Bergstrom

Mon 1/5

5:40 am-5:15 pm

1 stop9h 35m

$245

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Fri 1/16

7:30 am-5:37 pm

1 stop12h 07m

Austin Bergstrom

Wed 1/21

2:45 pm-11:49 pm

1 stop7h 04m

$245

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Fri 10/24

7:15 am-6:30 pm

1 stop12h 15m

Austin Bergstrom

Wed 10/29

6:40 am-4:33 pm

1 stop8h 53m

$245

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Wed 10/8

7:00 am-3:20 pm

1 stop9h 20m

Austin Bergstrom

Wed 10/15

12:17 pm-8:38 pm

1 stop7h 21m

$272

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Fri 10/24

1:05 am-1:08 pm

2 stops13h 03m

Austin Bergstrom

Mon 10/27

5:30 am-3:36 pm

1 stop9h 06m

$282

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Tue 10/14

1:05 am-9:59 am

1 stop9h 54m

Austin Bergstrom

Wed 10/22

11:07 am-11:57 pm

1 stop11h 50m

$334

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Wed 12/24

6:40 am-7:00 pm

2 stops14h 20m

Austin Bergstrom

Mon 1/5

9:25 am-1:25 am

1 stop14h 00m

$345

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Tue 11/4

5:45 am-12:35 pm

2 stops8h 50m

Austin Bergstrom

Sat 11/8

12:05 pm-11:15 pm

2 stops9h 10m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 20 results
1
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Best time to book a flight from San Juan to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from San Juan 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 San Juan to Austin

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

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Austin. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from San Juan to Austin, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from San Juan to Austin (average of $285). Flying from San Juan to Austin in March is currently the most expensive (average of $362). 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 SJU to AUS?

Find hourly flight availability from San Juan to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s typically best to fly out from San Juan to Austin in the evening. Doing so could potentially save you 49% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from San Juan to Austin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan to Austin flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at noon 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 San Juan to Austin?

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated September 17, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Juan to Austin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from San Juan to Austin. 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 into for flights to Austin from San Juan?

    If you book a flight to Austin from San Juan, you will be flying to Austin Bergstrom, which is the city’s only airport. Austin Bergstrom (AUS) is located 7.5 mi from the center of Austin. There are 0 flights from San Juan to Austin Bergstrom per day from 6 different airlines.

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

    Airlines like United Airlines and Delta fly from San Juan to Austin in about 9h 21m. The time it takes to get you to your destination can typically vary by up to 2h 43m. San Juan and Austin are separated by a distance of 2142 mi. This flight may include one or multiple stops.

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

    Frontier, at $133, was found to be the cheapest airline from San Juan to Austin.Alternate airlines to your destination round-trip include Spirit Airlines and Delta. Frontier is 66% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from San Juan to Austin are Southwest ($123), United Airlines ($123), and Delta ($123).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Juan to Austin 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 San Juan to Austin?

    Currently, August is the cheapest month in which you can book a flight from San Juan to Austin (average of $285). Flying from San Juan to Austin in March is currently the most expensive (average of $362). 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

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
San Marcos
Round Rock
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Cedar Park
Canyon Lake
Seguin
Horseshoe Bay

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Top 6 airlines flying from San Juan to Austin

Discover the top 6 airlines that operate flights from San Juan to Austin. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$308FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$220Average$276FlexibilityNo cancel feeOn-time65%
DeltaCheapest$265Average$382FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$276Average$401FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$406FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$316Average$508FlexibilityNo cancel feeOn-time63%

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