Luis Munoz Marin Intl

$119+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SJU
Aug 19 — Aug 261
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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 79 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 August 14, 2025.

Round-trip from

$249
(Mytrip)

One-way from

$119
(SmartFares)

Popular in

December

Cheapest in

October

Average price

$463
From Austin Bergstrom to San Juan Luis Munoz Marin Intl
One-way flight from Austin Bergstrom to San Juan Luis Munoz Marin Intl
Highest demand for flights based on searches. 12% potential increase in price ($64 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in August 2025

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 August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:00 amAUS - SJU
2 stops25h 52mSpirit Airlines
Mon 11/101:35 pmSJU - AUS
1 stop11h 37mSpirit Airlines
Deal found 8/13$249
This Delta deal was found by Cheapflights users on 8/12. 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 9/85:35 amAUS - SJU
1 stop6h 55mDelta
Sat 9/137:30 amSJU - AUS
1 stop7h 20mDelta
Deal found 8/12$255
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/309:45 amAUS - SJU
2 stops13h 12mUnited Airlines
Fri 10/101:05 amSJU - AUS
2 stops10h 59mUnited Airlines
Deal found 8/13$259
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Fri 10/176:00 amAUS - SJU
1 stop8h 16mMultiple Airlines
Tue 10/212:49 amSJU - AUS
2 stops19h 56mMultiple Airlines
Deal found 8/13$264
This FlightHub deal was found by Cheapflights users on 8/13. 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 10/2711:02 amAUS - SJU
2 stops26h 10mSpirit Airlines
Mon 11/33:48 amSJU - AUS
2 stops19h 57mSpirit Airlines
Deal found 8/13$265
This Priceline deal was found by Cheapflights users on 8/14. 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 9/1111:08 amAUS - SJU
1 stop11h 15mMultiple Airlines
Thu 9/1811:59 amSJU - AUS
1 stop12h 03mMultiple Airlines
Deal found 8/14$269
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/65:45 amAUS - SJU
2 stops28h 20mSpirit Airlines
Fri 9/123:19 pmSJU - AUS
3 stops32h 43mSpirit Airlines
Deal found 8/13$272
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Thu 11/68:21 pmAUS - SJU
1 stop18h 02mSpirit Airlines
Mon 11/101:35 pmSJU - AUS
1 stop11h 37mSpirit Airlines
Deal found 8/12$273
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Thu 10/1611:14 amAUS - SJU
1 stop14h 16mMultiple Airlines
Thu 10/3012:06 pmSJU - AUS
1 stop13h 31mMultiple Airlines
Deal found 8/12$274
This FlightHub deal was found by Cheapflights users on 8/12. 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 9/226:15 pmAUS - SJU
1 stop7h 19mMultiple Airlines
Tue 9/303:19 pmSJU - AUS
2 stops32h 43mMultiple Airlines
Deal found 8/12$275
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Mon 10/136:00 amAUS - SJU
1 stop8h 16mMultiple Airlines
Tue 10/212:49 amSJU - AUS
2 stops19h 56mMultiple Airlines
Deal found 8/13$276
This FlightHub deal was found by Cheapflights users on 8/12. 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 9/225:45 amAUS - SJU
2 stops31h 26mSpirit Airlines
Tue 9/303:19 pmSJU - AUS
2 stops32h 43mSpirit Airlines
Deal found 8/12$277

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 August 14, 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 11/10

1:40 pm-11:17 pm

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Fri 11/14

7:30 am-3:49 pm

1 stop10h 19m

$255

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 9/8

5:35 am-1:30 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Sat 9/13

7:30 am-1:50 pm

1 stop7h 20m

$255

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 9/30

9:44 am-11:57 pm

2 stops13h 13m

San Juan Luis Munoz Marin Intl

Fri 10/10

1:05 am-10:01 am

1 stop9h 56m

$259

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 9/14

5:45 am-2:11 pm

2 stops31h 26m

San Juan Luis Munoz Marin Intl

Thu 9/18

11:59 am-11:02 pm

1 stop12h 03m

$259

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 10/17

6:00 am-3:16 pm

1 stop8h 16m

San Juan Luis Munoz Marin Intl

Mon 10/20

2:49 am-9:45 pm

2 stops19h 56m

$264

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/20

11:59 am-10:00 pm

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Tue 9/23

5:41 pm-12:13 am

1 stop7h 32m

$265

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/27

11:59 am-10:00 pm

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Mon 9/29

5:41 pm-12:13 am

1 stop7h 32m

$265

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 9/28

5:45 am-2:11 pm

2 stops31h 26m

$119

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 10/18

6:00 am-11:13 am

2 stops28h 13m

$121

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 10/29

6:00 am-11:13 am

2 stops28h 13m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 16 results
1
2

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 August 8, 2025.

Booking 79 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 $254). Flying from Austin to San Juan Luis Munoz Marin Intl Airport 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 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 August 14, 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 34% 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.

How much does it cost to fly round-trip from Austin to San Juan Luis Munoz Marin Intl Airport?

What’s the top layover airport for flights from Austin to San Juan Luis Munoz Marin Intl Airport?

Share of 1-stop round-trip flights from Austin to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Orlando (MCO) – chosen by Cheapflights users on 67% of 1-stop itineraries from Austin to San Juan Luis Munoz Marin Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Austin to San Juan Luis Munoz Marin Intl Airport?

Average round-trip fare for 1-stop flights from Austin to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Orlando (MCO) is the most affordable 1-stop option, with an average round-trip price of $305.

What’s the fastest layover option from Austin to San Juan Luis Munoz Marin Intl Airport?

Shortest average travel time for 1-stop one-way flights from Austin to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Orlando (MCO) have the shortest average one-way travel time for 1-stop routes: 7h 13m.

Which airport typically offers the quickest layover for flights from Austin to San Juan Luis Munoz Marin Intl Airport?

Average layover duration for 1-stop one-way flights from Austin to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 2h 00m.

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 August 14, 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.

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

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.

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

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.
8.0
Very good

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

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.

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

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.

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

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.

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

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 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 6 different airlines.

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

    Frontier, at $144, 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 67% below the average price you’ll pay for this route.

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

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

    Wynwood Art District, Bayfront Park, and Kaseya Center are currently the most popular points of interest in Miami at the moment. Wynwood Art District, Bayfront Park, and Kaseya Center can be visited by traveling about 5.5 mi, 6.4 mi, and 6.2 mi respectively from Miami. Travelers can rent a car at Miami for an average daily rate of $29 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 $33 per day.

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

    Georgia Aquarium, Fox Theatre, and Tabernacle are currently the most popular points of interest in Atlanta. Georgia Aquarium, Fox Theatre, and Tabernacle can be visited by traveling 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 $56 per day.

  • Where are the least popular layover locations for 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 $254). Flying from Austin to San Juan Luis Munoz Marin Intl Airport 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

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 6 airlines flying from Austin to Luis Munoz Marin Intl

Discover the top 6 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$144Average$281FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$183Average$332FlexibilityNo cancel feeOn-time65%
DeltaCheapest$255Average$396FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$284Average$443FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$289Average$549FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$316Average$471FlexibilityNo cancel feeOn-time69%

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