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$147+ Cheap flights from Luis Munoz Marin Intl (SJU) 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — AUS
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Austin Bergstrom are usually found in January or September, booked 68 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Luis Munoz Marin Intl to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) 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 August 20, 2025.

Round-trip from

$221
(Southwest)

One-way from

$147
(Frontier)

Popular in

March

Cheapest in

January

Average price

$424
From San Juan Luis Munoz Marin Intl to Austin Bergstrom
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One-way flight from San Juan Luis Munoz Marin Intl to Austin Bergstrom
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Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Luis Munoz Marin Intl to Austin

Cheapest flights from Luis Munoz Marin Intl to Austin
Explore the most affordable flight options available from Luis Munoz Marin Intl to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Southwest deal was found by Cheapflights users on 8/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:45 amSJU - AUS
2 stops8h 50mSouthwest
Sat 11/89:00 amAUS - SJU
Nonstop4h 30mSouthwest
Deal found 8/18$221
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:50 amSJU - AUS
1 stop11h 40mSouthwest
Sat 10/43:30 pmAUS - SJU
1 stop6h 55mSouthwest
Deal found 8/19$225
This American Airlines deal was found by Cheapflights users on 8/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:05 pmSJU - AUS
1 stop16h 26mAmerican Airlines
Tue 10/76:00 amAUS - SJU
1 stop7h 25mAmerican Airlines
Deal found 8/20$230
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:00 amSJU - AUS
2 stops9h 36mAmerican Airlines
Tue 10/146:29 pmAUS - SJU
1 stop15h 37mAmerican Airlines
Deal found 8/18$231
This SmartFares deal was found by Cheapflights users on 8/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:59 amSJU - AUS
1 stop12h 03mSpirit Airlines
Sat 10/45:45 amAUS - SJU
2 stops28h 28mSpirit Airlines
Deal found 8/19$250
This OneTravel deal was found by Cheapflights users on 8/20. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:59 amSJU - AUS
1 stop12h 03mSpirit Airlines
Mon 9/225:45 amAUS - SJU
2 stops31h 26mSpirit Airlines
Deal found 8/20$253
This SmartFares deal was found by Cheapflights users on 8/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2311:51 amSJU - AUS
1 stop13h 05mSpirit Airlines
Mon 10/279:24 amAUS - SJU
1 stop15h 20mSpirit Airlines
Deal found 8/17$259
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:15 amSJU - AUS
1 stop7h 40mDelta
Mon 1/55:40 amAUS - SJU
1 stop9h 35mDelta
Deal found 8/18$265
This Priceline deal was found by Cheapflights users on 8/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:50 pmSJU - AUS
1 stop18h 03mMultiple Airlines
Mon 12/85:45 amAUS - SJU
1 stop7h 41mMultiple Airlines
Deal found 8/19$268

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl 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 August 20, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Austin that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Austin

Route

Depart

Return

Price

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Wed 11/5

5:45 am-12:35 pm

2 stops8h 50m

Austin Bergstrom

Sat 11/8

9:00 am-3:30 pm

Nonstop4h 30m

$221

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Wed 10/1

4:43 pm-11:28 pm

1 stop7h 45m

Austin Bergstrom

Tue 10/7

7:15 am-3:55 pm

1 stop7h 40m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Thu 9/18

5:41 pm-12:13 am

1 stop7h 32m

Austin Bergstrom

Mon 9/22

11:59 am-10:00 pm

1 stop9h 01m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Thu 9/18

5:50 am-4:30 pm

1 stop11h 40m

Austin Bergstrom

Sat 10/4

3:30 pm-11:25 pm

1 stop6h 55m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Tue 10/21

7:00 am-5:34 pm

1 stop11h 34m

Austin Bergstrom

Tue 11/4

6:00 am-3:11 pm

1 stop7h 11m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Sat 11/1

5:00 am-1:15 pm

2 stops9h 15m

Austin Bergstrom

Wed 11/5

4:25 pm-12:35 am

1 stop6h 10m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Thu 10/9

3:50 pm-12:21 am

1 stop9h 31m

Austin Bergstrom

Wed 10/15

5:00 am-6:25 pm

2 stops12h 25m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Sat 10/4

3:15 pm-10:40 pm

1 stop8h 25m

Austin Bergstrom

Tue 10/7

8:05 am-5:15 pm

1 stop8h 10m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Tue 10/21

5:05 am-3:25 pm

2 stops11h 20m

Austin Bergstrom

Tue 11/4

11:45 am-11:20 pm

1 stop9h 35m

$225

San JuanAustin

SJU - AUS

SJUAUS

San Juan Luis Munoz Marin Intl

Wed 8/27

8:13 pm-8:05 am

1 stop12h 52m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 18 results
1
2

Best time to book a flight from Luis Munoz Marin Intl to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Austin

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Austin?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Austin. Price data was last updated on August 8, 2025.

The price you pay for your flight from San Juan Luis Munoz Marin Intl Airport to Austin may vary depending on when you book. For the best chance of a lower fare, look to book 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Austin?

Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Austin (average of $286). Flying from San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl 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 August 20, 2025.

It’s typically best to fly out from San Juan Luis Munoz Marin Intl Airport to Austin in the evening. Doing so could potentially save you 51% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to Austin?

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

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport 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.

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 August 20, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from San Juan Luis Munoz Marin Intl Airport to Austin 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
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,928 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,039 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl?

    Austin Bergstrom (AUS), located 7.5 mi from the city center, is the airport you fly into when you book flights from San Juan Luis Munoz Marin Intl to Austin. 6 airlines have flights to Austin Bergstrom from San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from San Juan Luis Munoz Marin Intl to Austin Bergstrom should not be difficult; the airport handles an average of 0 inbound flights from San Juan Luis Munoz Marin Intl per day.

  • How long is the flight from San Juan Luis Munoz Marin Intl Airport to Austin?

    Airlines like Southwest and American Airlines fly from San Juan Luis Munoz Marin Intl Airport to Austin in about 7h 45m. The time it takes to get you to your destination can typically vary by up to 1h 05m. The distance from San Juan Luis Munoz Marin Intl Airport to Austin is about 2142 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Austin round-trip?

    Flying on Frontier is currently your cheapest option to Austin, with prices starting at $133. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $220 and $265, respectively. Frontier is currently priced 67% below the average price you’ll pay for this route.

  • Can I find deals for flights from Luis Munoz Marin Intl to Austin that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to Austin?

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

  • Can I find deals for business class flights from Luis Munoz Marin Intl to Austin?

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Austin?

    Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Austin (average of $286). Flying from San Juan Luis Munoz Marin Intl Airport 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
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
Seguin
Horseshoe Bay

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Top 6 airlines flying from Luis Munoz Marin Intl to Austin

Discover the top 6 airlines that operate flights from Luis Munoz Marin Intl 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$308FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$220Average$288FlexibilityNo cancel feeOn-time65%
DeltaCheapest$265Average$381FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$414FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$292Average$398FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$330Average$512FlexibilityNo cancel feeOn-time63%

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