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Cheap flights from Austin to San Juan from $132

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 8/19. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Austin to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:37 pm - 12:56 am
AUS
-
SJU
30h 19m
2 stops
Frontier Logo
8:43 pm - 10:10 am
SJU
-
AUS
14h 27m
1 stop
$321Frontier
Tue, Aug 25 - Tue, Sep 1
JetBlue Logo
1:00 pm - 11:04 pm
AUS
-
SJU
8h 04m
1 stop
JetBlue Logo
2:59 pm - 11:07 pm
SJU
-
AUS
10h 08m
1 stop
$321JetBlue
Thu, Nov 5 - Mon, Nov 16
JetBlue Logo
6:20 am - 1:37 pm
AUS
-
SJU
6h 17m
1 stop
JetBlue Logo
6:25 am - 11:48 am
SJU
-
AUS
6h 23m
1 stop
$321JetBlue
Wed, Oct 7 - Mon, Oct 12
Southwest Logo
1:30 pm - 10:10 pm
AUS
-
SJU
7h 40m
1 stop
Southwest Logo
5:00 am - 2:05 pm
SJU
-
AUS
10h 05m
2 stops
$323Southwest
Thu, Aug 27 - Thu, Sep 3
United Airlines Logo
12:12 pm - 8:38 pm
AUS
-
SJU
7h 26m
1 stop
United Airlines Logo
1:00 am - 1:58 pm
SJU
-
AUS
13h 58m
2 stops
$323United Airlines
Tue, Aug 25 - Mon, Aug 31
Multiple Airlines Logo
11:15 am - 1:53 am
AUS
-
SJU
13h 38m
1 stop
Multiple Airlines Logo
6:25 am - 11:48 am
SJU
-
AUS
6h 23m
1 stop
$326Multiple Airlines
Wed, Oct 14 - Sun, Oct 18
Frontier Logo
10:58 am - 8:48 pm
AUS
-
SJU
8h 50m
1 stop
Frontier Logo
10:42 am - 5:48 pm
SJU
-
AUS
32h 06m
2 stops
$329Frontier
Sat, Sep 26 - Mon, Sep 28
Southwest Logo
8:55 pm - 9:10 am
AUS
-
SJU
11h 15m
1 stop
Southwest Logo
6:05 am - 11:20 am
SJU
-
AUS
7h 15m
1 stop
$341Southwest
Mon, Oct 26 - Thu, Nov 5
United Airlines Logo
9:33 am - 11:50 pm
AUS
-
SJU
13h 17m
2 stops
United Airlines Logo
1:00 am - 9:26 am
SJU
-
AUS
9h 26m
1 stop
$342United Airlines
Thu, Sep 10 - Sat, Sep 12
Multiple Airlines Logo
1:00 pm - 11:04 pm
AUS
-
SJU
8h 04m
1 stop
Multiple Airlines Logo
7:42 pm - 10:32 am
SJU
-
AUS
16h 50m
1 stop
$346Multiple Airlines
Mon, Nov 2 - Sun, Nov 8

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United Airlines flights from Austin to San Juan

Our best United Airlines deals on Austin to San Juan flight tickets
United Airlines
Aug 25
AUS12:12 pmAustin Bergstrom
7h 26m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Aug 31
SJU1:00 amSan Juan Luis Munoz Marin Intl
13h 58m
2 stops
AUS1:58 pmAustin Bergstrom
$323
United Airlines
Sep 10
AUS9:33 amAustin Bergstrom
13h 17m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Sep 12
SJU1:00 amSan Juan Luis Munoz Marin Intl
9h 26m
1 stop
AUS9:26 amAustin Bergstrom
$342
United Airlines
Oct 14
AUS12:15 pmAustin Bergstrom
7h 23m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Oct 17
SJU1:00 amSan Juan Luis Munoz Marin Intl
9h 59m
1 stop
AUS9:59 amAustin Bergstrom
$345

Southwest flights from Austin to San Juan

Our best Southwest deals on Austin to San Juan flight tickets
Southwest
Sep 10
AUS8:50 amAustin Bergstrom
10h 15m
2 stops
SJU8:05 pmSan Juan Luis Munoz Marin Intl
Sep 14
SJU5:30 amSan Juan Luis Munoz Marin Intl
15h 30m
2 stops
AUS8:00 pmAustin Bergstrom
$348
Southwest
Aug 25
AUS1:00 pmAustin Bergstrom
7h 05m
1 stop
SJU9:05 pmSan Juan Luis Munoz Marin Intl
Sep 1
SJU8:20 amSan Juan Luis Munoz Marin Intl
7h 40m
1 stop
AUS3:00 pmAustin Bergstrom
$350
Southwest
Sep 5
AUS8:35 amAustin Bergstrom
8h 35m
2 stops
SJU6:10 pmSan Juan Luis Munoz Marin Intl
Sep 11
SJU5:30 amSan Juan Luis Munoz Marin Intl
15h 30m
2 stops
AUS8:00 pmAustin Bergstrom
$361

momondo Fare Finder

 
Customize your flight search to find flights from Austin to San Juan 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 July 29, 2026.
Use the filters below to find and compare flights from Austin to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 8/25

5:37 pm-12:56 am

2 stops30h 19m

San Juan Luis Munoz Marin Intl

Tue 9/1

8:43 pm-10:10 am

1 stop14h 27m

$321

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 11/5

1:00 pm-11:04 pm

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Mon 11/16

2:59 pm-11:07 pm

1 stop10h 08m

$321
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 10/7

6:20 am-1:37 pm

1 stop6h 17m

San Juan Luis Munoz Marin Intl

Mon 10/12

6:25 am-11:48 am

1 stop6h 23m

$321

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 8/27

1:30 pm-10:10 pm

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Thu 9/3

5:00 am-2:05 pm

2 stops10h 05m

$323

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 8/25

12:12 pm-8:38 pm

1 stop7h 26m

San Juan Luis Munoz Marin Intl

Mon 8/31

1:00 am-1:58 pm

2 stops13h 58m

$323

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 10/14

11:15 am-1:53 am

1 stop13h 38m

San Juan Luis Munoz Marin Intl

Sun 10/18

6:25 am-11:48 am

1 stop6h 23m

$326

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/26

10:58 am-8:48 pm

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Mon 9/28

10:42 am-5:48 pm

2 stops32h 06m

$329

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 10/26

8:55 pm-9:10 am

1 stop11h 15m

San Juan Luis Munoz Marin Intl

Thu 11/5

6:05 am-11:20 am

1 stop7h 15m

$341

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 9/10

9:33 am-11:50 pm

2 stops13h 17m

San Juan Luis Munoz Marin Intl

Sat 9/12

1:00 am-9:26 am

1 stop9h 26m

$342

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 11/2

1:00 pm-11:04 pm

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Sun 11/8

7:42 pm-10:32 am

1 stop16h 50m

$346

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

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?

Prices are currently low for flights on this route.

Typical prices usually range from $354 to $490.
The lowest price recently found on this route was $321.

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in January, then October is your next best option. Flight prices from Austin to San Juan during October average around $374.

What is the cheapest Austin Bergstrom to San Juan flight route?

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

How far in advance should I book a flight from Austin to San Juan?

You are more likely to see cheaper flights to San Juan from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $439 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Austin for as low as $358 on momondo.

What cabin class options are available on Austin to San Juan flights?

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

Cheap Austin to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to San Juan

Fastest flight time

4h 25m

Direct flights

Sun

Airports in San Juan

2 airports
The fastest flight from Austin to San Juan takes 4h 25m
Direct flights go from Austin to San Juan on Sunday. There are no airlines offering direct flights.
There are 2 airports in San Juan. From Austin there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

Frequently asked questions about flying from Austin to San Juan

  • How far is Austin Bergstrom to San Juan by plane?

    The straight-line distance from Austin Bergstrom to San Juan is 2141.1 mi. Typically, this will take 4h 25m by plane in normal conditions.

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

    Prices for flights from Austin Bergstrom Airport to San Juan refresh daily.

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

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

    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.

  • What documentation or ID do you need to fly to San Juan?

    The required travel and health documents for your San Juan 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Austin to San Juan

Compare and see reviews for airlines that fly from Austin to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $138Free CancellationRating
5.6
2,749 reviews
Search Frontier flights
DeltaPriceFrom $209Free CancellationRating
7.8
8,486 reviews
Search Delta flights
American AirlinesPriceFrom $225Free CancellationRating
7.1
11,841 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
10,050 reviews
Search United Airlines flights
SouthwestPriceFrom $279Free CancellationRating
8.0
4,228 reviews
Search Southwest flights
JetBluePriceFrom $311Free CancellationRating
7.1
3,024 reviews
Search JetBlue flights

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?

momondo does allow users to show only those flights to San Juan from Austin which offer a flexible booking policy as well as other useful filters and features.

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?

Yes. momondo can track prices for Austin to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your San Juan trip

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport