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Cheap flights from Austin to San Juan from $121

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 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Austin to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 12:33 pm
AUS
-
SJU
29h 33m
1 stop
Multiple Airlines Logo
3:31 pm - 7:55 pm
SJU
-
AUS
53h 24m
2 stops
$242Multiple Airlines
Sun, Apr 19 - Thu, Apr 23
Spirit Airlines Logo
6:00 am - 7:22 pm
AUS
-
SJU
12h 22m
1 stop
Spirit Airlines Logo
12:57 pm - 11:40 pm
SJU
-
AUS
11h 43m
1 stop
$243Spirit Airlines
Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
6:13 pm - 12:29 am
AUS
-
SJU
29h 16m
2 stops
Multiple Airlines Logo
12:57 pm - 11:40 pm
SJU
-
AUS
11h 43m
1 stop
$244Multiple Airlines
Wed, Apr 22 - Thu, Apr 30
Frontier Logo
8:20 pm - 9:54 am
AUS
-
SJU
12h 34m
1 stop
Frontier Logo
3:03 am - 10:45 am
SJU
-
AUS
8h 42m
1 stop
$246Frontier
Sun, Apr 26 - Thu, May 7
Multiple Airlines Logo
6:00 am - 12:33 pm
AUS
-
SJU
29h 33m
1 stop
Multiple Airlines Logo
6:30 am - 8:18 pm
SJU
-
AUS
38h 48m
2 stops
$247Multiple Airlines
Sun, Apr 26 - Tue, May 5
Multiple Airlines Logo
6:12 am - 6:55 pm
AUS
-
SJU
11h 43m
1 stop
Multiple Airlines Logo
6:00 am - 8:20 am
SJU
-
AUS
27h 20m
2 stops
$250Multiple Airlines
Tue, Apr 14 - Fri, Apr 17
Frontier Logo
4:44 pm - 12:52 am
AUS
-
SJU
7h 08m
1 stop
Frontier Logo
3:19 pm - 6:17 pm
SJU
-
AUS
27h 58m
1 stop
$251Frontier
Mon, Apr 13 - Wed, Apr 22
Multiple Airlines Logo
6:12 am - 6:55 pm
AUS
-
SJU
11h 43m
1 stop
Multiple Airlines Logo
3:19 pm - 7:55 pm
SJU
-
AUS
29h 36m
2 stops
$252Multiple Airlines
Tue, Apr 14 - Fri, Apr 17
Multiple Airlines Logo
6:13 pm - 3:30 pm
AUS
-
SJU
20h 17m
2 stops
Multiple Airlines Logo
12:57 pm - 11:40 pm
SJU
-
AUS
11h 43m
1 stop
$253Multiple Airlines
Tue, Apr 28 - Sat, May 2
Multiple Airlines Logo
6:00 am - 12:33 pm
AUS
-
SJU
29h 33m
1 stop
Multiple Airlines Logo
3:31 pm - 8:18 pm
SJU
-
AUS
53h 47m
2 stops
$254Multiple Airlines
Sun, Apr 26 - Sun, May 3

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
Apr 26
AUS8:20 pmAustin Bergstrom
12h 34m
1 stop
SJU9:54 amSan Juan Luis Munoz Marin Intl
May 7
SJU3:03 amSan Juan Luis Munoz Marin Intl
8h 42m
1 stop
AUS10:45 amAustin Bergstrom
$246
Frontier
Apr 13
AUS4:44 pmAustin Bergstrom
7h 08m
1 stop
SJU12:52 amSan Juan Luis Munoz Marin Intl
Apr 22
SJU3:19 pmSan Juan Luis Munoz Marin Intl
27h 58m
1 stop
AUS6:17 pmAustin Bergstrom
$251
Frontier
May 8
AUS11:30 amAustin Bergstrom
13h 38m
1 stop
SJU2:08 amSan Juan Luis Munoz Marin Intl
May 14
SJU6:09 pmSan Juan Luis Munoz Marin Intl
17h 36m
1 stop
AUS10:45 amAustin Bergstrom
$257

Spirit Airlines flights from Austin to San Juan Luis Munoz Marin Intl Airport

Our best Spirit Airlines deals on Austin to San Juan Luis Munoz Marin Intl Airport flight tickets
Spirit Airlines
Apr 26
AUS6:00 amAustin Bergstrom
12h 22m
1 stop
SJU7:22 pmSan Juan Luis Munoz Marin Intl
Apr 30
SJU12:57 pmSan Juan Luis Munoz Marin Intl
11h 43m
1 stop
AUS11:40 pmAustin Bergstrom
$243
Spirit Airlines
Apr 12
AUS6:12 amAustin Bergstrom
11h 43m
1 stop
SJU6:55 pmSan Juan Luis Munoz Marin Intl
Apr 19
SJU12:57 pmSan Juan Luis Munoz Marin Intl
11h 43m
1 stop
AUS11:40 pmAustin Bergstrom
$250
Spirit Airlines
Apr 12
AUS6:12 amAustin Bergstrom
11h 43m
1 stop
SJU6:55 pmSan Juan Luis Munoz Marin Intl
Apr 25
SJU5:45 amSan Juan Luis Munoz Marin Intl
18h 55m
2 stops
AUS11:40 pmAustin Bergstrom
$253

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 April 2, 2026.
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

Cheapest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 4/19

6:00 am-12:33 pm

1 stop29h 33m

San Juan Luis Munoz Marin Intl

Thu 4/23

3:31 pm-7:55 pm

2 stops53h 24m

$242

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 4/26

6:00 am-7:22 pm

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Thu 4/30

12:57 pm-11:40 pm

1 stop11h 43m

$243

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 4/22

6:13 pm-12:29 am

2 stops29h 16m

San Juan Luis Munoz Marin Intl

Thu 4/30

12:57 pm-11:40 pm

1 stop11h 43m

$244
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 4/26

8:20 pm-9:54 am

1 stop12h 34m

San Juan Luis Munoz Marin Intl

Thu 5/7

3:03 am-10:45 am

1 stop8h 42m

$246

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 4/26

6:00 am-12:33 pm

1 stop29h 33m

San Juan Luis Munoz Marin Intl

Tue 5/5

6:30 am-8:18 pm

2 stops38h 48m

$247

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 4/14

6:12 am-6:55 pm

1 stop11h 43m

San Juan Luis Munoz Marin Intl

Fri 4/17

6:00 am-8:20 am

2 stops27h 20m

$250

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 4/13

4:44 pm-12:52 am

1 stop7h 08m

San Juan Luis Munoz Marin Intl

Wed 4/22

3:19 pm-6:17 pm

1 stop27h 58m

$251

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 4/14

6:12 am-6:55 pm

1 stop11h 43m

San Juan Luis Munoz Marin Intl

Fri 4/17

3:19 pm-7:55 pm

2 stops29h 36m

$252

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 4/28

6:13 pm-3:30 pm

2 stops20h 17m

San Juan Luis Munoz Marin Intl

Sat 5/2

12:57 pm-11:40 pm

1 stop11h 43m

$253

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 4/26

6:00 am-12:33 pm

1 stop29h 33m

San Juan Luis Munoz Marin Intl

Sun 5/3

3:31 pm-8:18 pm

2 stops53h 47m

$254

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

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 January is also cheap. Prices for this month can be found on momondo for an average of $365.

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 $422 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 $347 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.

Can stopping save me money on Austin to San Juan Luis Munoz Marin Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Austin to San Juan Luis Munoz Marin Intl Airport.

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

As of April 2026, prices for Austin to San Juan Luis Munoz Marin Intl Airport flights are approximately 10% 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

$268

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 $268. 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 $382.
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

Frequently asked questions about flying from Austin to San Juan Luis Munoz Marin Intl Airport

  • 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 4h 25m.

  • 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
Spirit AirlinesPriceFrom $120Free CancellationRating
6.3
8,576 reviews
Search Spirit Airlines flights
DeltaPriceFrom $132Free CancellationRating
7.9
8,371 reviews
Search Delta flights
FrontierPriceFrom $139Free CancellationRating
5.7
3,004 reviews
Search Frontier flights
American AirlinesPriceFrom $225Free CancellationRating
7.1
11,549 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,533 reviews
Search United Airlines flights
SouthwestPriceFrom $260Free CancellationRating
8.0
4,337 reviews
Search Southwest flights
JetBluePriceFrom $303Free CancellationRating
7.2
2,910 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
Rio Grande
Caguas
Humacao
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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