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Cheap flights from Austin to San Juan from $123

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to San Juan departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:45 pm - 10:54 pmAUS-SJU
7h 09m1 stop
Delta Logo
6:15 am - 12:41 pmSJU-AUS
7h 26m1 stop
$245Delta
Find Deal
Sat, May 2 - Tue, May 5
Multiple Airlines Logo
6:45 am - 12:24 amAUS-SJU
15h 39m2 stops
Multiple Airlines Logo
10:42 am - 9:53 amSJU-AUS
25h 11m1 stop
$248Multiple Airlines
Find Deal
Thu, Nov 20 - Thu, Dec 4
Multiple Airlines Logo
5:30 am - 10:05 pmAUS-SJU
14h 35m1 stop
Multiple Airlines Logo
6:30 am - 9:53 amSJU-AUS
29h 23m1 stop
$249Multiple Airlines
Find Deal
Tue, Jan 6 - Sat, Jan 10
American Airlines Logo
6:05 am - 5:01 pmAUS-SJU
8h 56m2 stops
American Airlines Logo
7:07 am - 4:09 pmSJU-AUS
11h 02m1 stop
$250American Airlines
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Tue, Jan 13 - Tue, Jan 27
Frontier Logo
9:12 pm - 9:37 amAUS-SJU
10h 25m1 stop
Frontier Logo
4:31 pm - 10:15 amSJU-AUS
19h 44m2 stops
$255Frontier
Find Deal
Sun, Dec 7 - Thu, Dec 11
Frontier Logo
6:45 am - 1:42 amAUS-SJU
40h 57m2 stops
Frontier Logo
11:05 am - 5:08 pmSJU-AUS
8h 03m1 stop
$257Frontier
Find Deal
Thu, Jan 22 - Thu, Jan 29
United Airlines Logo
5:30 am - 4:36 pmAUS-SJU
9h 06m1 stop
United Airlines Logo
2:05 am - 12:59 pmSJU-AUS
12h 54m2 stops
$279United Airlines
Find Deal
Sun, Dec 7 - Mon, Dec 8
United Airlines Logo
7:39 pm - 6:11 amAUS-SJU
8h 32m1 stop
United Airlines Logo
7:45 am - 3:22 pmSJU-AUS
9h 37m1 stop
$287United Airlines
Find Deal
Sun, Feb 15 - Thu, Feb 26
Southwest Logo
6:30 pm - 10:30 amAUS-SJU
14h 00m2 stops
Southwest Logo
6:30 am - 3:30 pmSJU-AUS
11h 00m1 stop
$295Southwest
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Mon, Feb 16 - Fri, Feb 27
American Airlines Logo
7:14 am - 5:52 pmAUS-SJU
8h 38m1 stop
American Airlines Logo
7:00 am - 4:47 pmSJU-AUS
11h 47m1 stop
$312American Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17

Frontier flights from Austin to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Austin to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Dec 7
AUS9:12 pmAustin Bergstrom
10h 25m
1 stop
SJU9:37 amSan Juan Luis Munoz Marin Intl
Dec 11
SJU4:31 pmSan Juan Luis Munoz Marin Intl
19h 44m
2 stops
AUS10:15 amAustin Bergstrom
$255
Find similar
Frontier
Jan 22
AUS6:45 amAustin Bergstrom
40h 57m
2 stops
SJU1:42 amSan Juan Luis Munoz Marin Intl
Jan 29
SJU11:05 amSan Juan Luis Munoz Marin Intl
8h 03m
1 stop
AUS5:08 pmAustin Bergstrom
$257
Find similar
Frontier
Dec 11
AUS7:41 pmAustin Bergstrom
26h 15m
2 stops
SJU11:56 pmSan Juan Luis Munoz Marin Intl
Jan 10
SJU6:30 amSan Juan Luis Munoz Marin Intl
29h 23m
1 stop
AUS9:53 amAustin Bergstrom
$262
Find similar

Delta flights from Austin to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Austin to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
May 2
AUS2:45 pmAustin Bergstrom
7h 09m
1 stop
SJU10:54 pmSan Juan Luis Munoz Marin Intl
May 5
SJU6:15 amSan Juan Luis Munoz Marin Intl
7h 26m
1 stop
AUS12:41 pmAustin Bergstrom
$245
Find similar
Delta
Nov 10
AUS5:30 amAustin Bergstrom
6h 47m
1 stop
SJU2:17 pmSan Juan Luis Munoz Marin Intl
Nov 13
SJU6:36 pmSan Juan Luis Munoz Marin Intl
7h 52m
1 stop
AUS12:28 amAustin Bergstrom
$395
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Austin to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated November 3, 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

Fly to

Route

Depart

Return

Price

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 5/2

2:45 pm-10:54 pm

1 stop7h 09m

San Juan Luis Munoz Marin Intl

Tue 5/5

6:15 am-12:41 pm

1 stop7h 26m

$245

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 11/20

6:45 am-12:24 am

2 stops15h 39m

San Juan Luis Munoz Marin Intl

Thu 12/4

10:42 am-9:53 am

1 stop25h 11m

$248

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 1/6

5:30 am-10:05 pm

1 stop14h 35m

San Juan Luis Munoz Marin Intl

Sat 1/10

6:30 am-9:53 am

1 stop29h 23m

$249

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 1/13

6:05 am-5:01 pm

2 stops8h 56m

San Juan Luis Munoz Marin Intl

Tue 1/27

7:07 am-4:09 pm

1 stop11h 02m

$250

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 12/7

9:12 pm-9:37 am

1 stop10h 25m

San Juan Luis Munoz Marin Intl

Thu 12/11

4:31 pm-10:15 am

2 stops19h 44m

$255

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 1/22

6:45 am-1:42 am

2 stops40h 57m

San Juan Luis Munoz Marin Intl

Thu 1/29

11:05 am-5:08 pm

1 stop8h 03m

$257

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 12/7

5:30 am-4:36 pm

1 stop9h 06m

San Juan Luis Munoz Marin Intl

Mon 12/8

2:05 am-12:59 pm

2 stops12h 54m

$279

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 2/15

7:39 pm-6:11 am

1 stop8h 32m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:45 am-3:22 pm

1 stop9h 37m

$287

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 2/16

6:30 pm-10:30 am

2 stops14h 00m

San Juan Luis Munoz Marin Intl

Fri 2/27

6:30 am-3:30 pm

1 stop11h 00m

$295

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 12/10

7:14 am-5:52 pm

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Wed 12/17

7:00 am-4:47 pm

1 stop11h 47m

$312

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Austin to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Austin and San Juan Luis Munoz Marin Intl Airport?

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $374.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Austin is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $412. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Austin because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $587.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the afternoon when flights can be purchased for as low as $396. Flights in the morning are often more expensive with an average ticket price of $587.

What is the cheapest Austin Bergstrom to San Juan Luis Munoz Marin Intl flight route?

Fly from Austin Bergstrom to San Juan Luis Munoz Marin Intl for the best Austin Bergstrom - San Juan Luis Munoz Marin Intl flight prices

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $445 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Austin for as low as $397 on momondo.

What cabin class options are available on Austin Bergstrom to San Juan Luis Munoz Marin Intl flights?

There is only 1 cabin class available to choose from on Austin Bergstrom to San Juan Luis Munoz Marin Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Austin to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of November 2025, prices for Austin to San Juan Luis Munoz Marin Intl Airport flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Austin to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to San Juan Luis Munoz Marin Intl Airport (AUS to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to San Juan Luis Munoz Marin Intl Airport

Best Price Found

$158

Fastest flight time

4h 25m

Direct flights

Sun
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Austin in the past 72 hours is $158. The best round-trip flight deal from Austin to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $484.
The fastest flight from Austin to San Juan Luis Munoz Marin Intl Airport takes 4h 25m
Direct flights go from Austin to San Juan Luis Munoz Marin Intl Airport on Sunday. The only airline offering direct flights is Southwest.
Search flight deals

  • How far is Austin Bergstrom to San Juan Luis Munoz Marin Intl by plane?

    Austin Bergstrom and San Juan Luis Munoz Marin Intl are 2148.0 mi apart from one another. By plane, this route typically takes 7h 02m.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Austin to San Juan Luis Munoz Marin Intl Airport?

  • What is the most popular airline from Austin to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Austin to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Austin to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.8
3,117 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $177Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
DeltaPriceFrom $232Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
United AirlinesPriceFrom $255Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
SouthwestPriceFrom $265Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
JetBluePriceFrom $311Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Austin to San Juan?

Finding the right flight to San Juan from Austin is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Austin to San Juan with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Juan from Austin with this policy.

How can momondo help me find flights from Austin to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Austin to San Juan right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Austin to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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