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Luis Munoz Marin Intl

$123+ Cheap flights from Austin (AUS) to Luis Munoz Marin Intl (SJU)

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SJU
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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Find cheap flights from Austin to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

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2. Select your favorite providers

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Cheapflights Tip: The best prices from Austin Bergstrom to San Juan Luis Munoz Marin Intl are usually found in October or September, booked 87 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Austin to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Luis Munoz Marin Intl (SJU). 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 October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$245
(Delta)

One-way from

$123
(Delta)

Popular in

December

Cheapest in

October

Average price

$363
Provider with most accurate pricing for Austin Bergstrom-San Juan Luis Munoz Marin Intl flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-San Juan Luis Munoz Marin Intl flights.
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From Austin Bergstrom to San Juan Luis Munoz Marin Intl
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One-way flight from Austin Bergstrom to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 10% potential increase in price ($51 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 October 2025
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Find flight deals from Austin to Luis Munoz Marin Intl

Cheapest flights from Austin to Luis Munoz Marin Intl
Explore the most affordable flight options available from Austin to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This Delta deal was found by Cheapflights users on 10/21. 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.
Mon 11/175:30 amAUS - SJU
1 stop9h 56mDelta
Thu 11/207:00 amSJU - AUS
1 stop10h 55mDelta
Deal found 10/21$245
This Frontier deal was found by Cheapflights users on 10/21. 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 11/610:34 amAUS - SJU
1 stop12h 58mFrontier
Wed 11/121:59 amSJU - AUS
1 stop10h 11mFrontier
Deal found 10/21$246
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Sun 11/1610:34 amAUS - SJU
1 stop12h 58mMultiple Airlines
Tue 11/183:44 pmSJU - AUS
1 stop23h 42mMultiple Airlines
Deal found 10/20$247
This Frontier deal was found by Cheapflights users on 10/21. 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 11/1610:34 amAUS - SJU
1 stop12h 58mFrontier
Sat 11/222:25 amSJU - AUS
1 stop10h 38mFrontier
Deal found 10/21$249
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Thu 11/1310:34 amAUS - SJU
1 stop12h 58mMultiple Airlines
Wed 11/199:00 amSJU - AUS
2 stops26h 14mMultiple Airlines
Deal found 10/20$254
This Frontier deal was found by Cheapflights users on 10/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:34 amAUS - SJU
1 stop12h 58mFrontier
Sat 11/152:11 amSJU - AUS
1 stop9h 59mFrontier
Deal found 10/20$255
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Sun 11/1610:34 amAUS - SJU
1 stop12h 58mFrontier
Thu 11/203:59 amSJU - AUS
1 stop15h 45mFrontier
Deal found 10/20$256
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Sun 11/910:34 amAUS - SJU
1 stop12h 58mMultiple Airlines
Fri 11/146:17 pmSJU - AUS
1 stop26h 37mMultiple Airlines
Deal found 10/21$259
This United Airlines deal was found by Cheapflights users on 10/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:15 pmAUS - SJU
1 stop7h 11mUnited Airlines
Wed 11/192:05 amSJU - AUS
2 stops13h 09mUnited Airlines
Deal found 10/20$267
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Sun 11/910:34 amAUS - SJU
1 stop12h 58mMultiple Airlines
Thu 11/1310:39 pmSJU - AUS
1 stop12h 35mMultiple Airlines
Deal found 10/21$268

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Luis Munoz Marin Intl 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 October 22, 2025.
Use the filters below to find and compare flights from Austin to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Austin

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 11/17

5:30 am-5:26 pm

1 stop9h 56m

San Juan Luis Munoz Marin Intl

Thu 11/20

7:00 am-3:55 pm

1 stop10h 55m

$245

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 11/17

7:00 am-10:22 pm

2 stops13h 22m

San Juan Luis Munoz Marin Intl

Thu 11/20

7:45 am-1:14 pm

1 stop7h 29m

$245

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 1/14

12:27 pm-9:26 pm

1 stop6h 59m

San Juan Luis Munoz Marin Intl

Mon 1/19

2:05 am-11:31 am

2 stops11h 26m

$289

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 11/4

1:40 pm-10:59 pm

1 stop7h 19m

San Juan Luis Munoz Marin Intl

Wed 11/12

6:36 pm-12:28 am

1 stop7h 52m

$320

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 11/10

11:24 am-12:36 am

1 stop11h 12m

San Juan Luis Munoz Marin Intl

Wed 11/12

2:05 am-10:17 am

1 stop10h 12m

$335

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 11/11

12:15 pm-9:26 pm

1 stop7h 11m

San Juan Luis Munoz Marin Intl

Mon 11/17

2:05 am-10:17 am

1 stop10h 12m

$335

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 11/11

6:20 am-11:20 pm

2 stops15h 00m

San Juan Luis Munoz Marin Intl

Fri 11/14

6:40 am-3:00 pm

2 stops10h 20m

$364

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 11/3

5:40 am-2:26 pm

1 stop6h 46m

San Juan Luis Munoz Marin Intl

Wed 11/12

7:00 am-3:55 pm

1 stop10h 55m

$374

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 12/6

10:15 am-12:36 am

2 stops12h 21m

San Juan Luis Munoz Marin Intl

Wed 12/10

8:30 am-7:52 pm

2 stops13h 22m

$375

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 11/12

8:50 am-9:30 pm

1 stop10h 40m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 19 results
1
2

Compare providers for flights from Austin to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Luis Munoz Marin Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Austin-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Austin to Luis Munoz Marin Intl. Price data was last updated on October 17, 2025.

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 Luis Munoz Marin Intl Airport. 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 Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Austin to San Juan Luis Munoz Marin Intl Airport (average of $116). Flying from Austin to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $247). 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 Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 22, 2025.

It’s typically best to fly out from Austin to San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport?

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

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

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated October 22, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Austin to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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
7.9
Good
7,981 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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
8,988 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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
11,029 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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
Frontier
5.8
Fair
3,129 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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 Austin to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl?

    Located just 7.5 mi from the city center, Austin Bergstrom is the airport most travelers will use when flying to San Juan Luis Munoz Marin Intl from Austin. Booking flights from Austin Bergstrom (AUS) to San Juan Luis Munoz Marin Intl should be relatively easy as there are 0 daily outbound flights to San Juan Luis Munoz Marin Intl from 7 different airlines.

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

    For as low as $245, Delta can have you in San Juan Luis Munoz Marin Intl Airport from Austin in 9h 56m. The distance from Austin to San Juan Luis Munoz Marin Intl Airport 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 Austin to San Juan Luis Munoz Marin Intl Airport round-trip?

    Frontier, at $150, was found to be the cheapest airline from Austin to San Juan Luis Munoz Marin Intl Airport.Alternate airlines to your destination round-trip include Spirit Airlines and Delta. Frontier is currently priced 66% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Austin to San Juan Luis Munoz Marin Intl Airport one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $123. Users have also found prices from $123 and $123 on Delta and United Airlines, respectively.

  • Where are the most common layover locations when flying from Austin to San Juan Luis Munoz Marin Intl Airport?

    Austin to San Juan Luis Munoz Marin Intl Airport flights have a layover in Miami most of the time. Orlando sees the second most layovers for non-direct flights flying from Austin to San Juan Luis Munoz Marin Intl Airport. Atlanta comes in third as the most popular layover location on Austin to San Juan Luis Munoz Marin Intl Airport flights.

  • What are some popular things to do or see while on a layover in Miami?

    Kaseya Center, Bayfront Park, and Wynwood Art District are currently the most popular points of interest in Miami at the moment. Kaseya Center, Bayfront Park, and Wynwood Art District can be visited by traveling about 6.2 mi, 6.4 mi, and 5.5 mi respectively from Miami. Travelers can rent a car at Miami for an average daily rate of $21 to make sightseeing during their layover a little easier.

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

    Walt Disney World Resort, Universal Orlando Resort, and International Drive are currently the most popular points of interest in Orlando at the moment. 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 landing in Orlando looking to spend some time exploring during their layover can rent a car for about $24 per day.

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

    Georgia Aquarium, Centennial Olympic Park, and Fox Theatre are currently the most popular points of interest in Atlanta. Georgia Aquarium, Centennial Olympic Park, and Fox Theatre can be visited by traveling about 8.6 mi, 8.4 mi, and 9.3 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 $58 per day.

  • Where are the least popular layover locations for Austin to San Juan Luis Munoz Marin Intl Airport flights?

    Austin to San Juan Luis Munoz Marin Intl Airport flights have a layover in Houston least often. Dallas sees the next fewest layovers on Austin to San Juan Luis Munoz Marin Intl Airport flights. Charlotte comes in third to last in terms of the least popular layover locations on Austin to San Juan Luis Munoz Marin Intl Airport flights.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Austin to San Juan Luis Munoz Marin Intl Airport (average of $116). Flying from Austin to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $247). 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 San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Top 7 airlines flying from Austin to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from Austin to Luis Munoz Marin Intl. 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 October 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$295FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$177Average$338FlexibilityNo cancel feeOn-time65%
DeltaCheapest$234Average$389FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$251Average$446FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$265Average$534FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$452FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$345Average$622FlexibilityNo cancel feeOn-time62%

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