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Cheap flights from Austin to San Juan from $164

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 8/11. 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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Find the cheapest flights from Austin to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:15 am - 8:44 pm
AUS
-
SJU
8h 29m
1 stop
Frontier Logo
2:58 am - 10:12 am
SJU
-
AUS
8h 14m
1 stop
$336Frontier
Tue, Oct 13 - Mon, Oct 19
Frontier Logo
5:38 pm - 2:34 pm
AUS
-
SJU
43h 56m
2 stops
Frontier Logo
5:15 pm - 12:38 pm
SJU
-
AUS
20h 23m
1 stop
$354Frontier
Tue, Aug 4 - Tue, Aug 11
Delta Logo
1:34 pm - 10:29 pm
AUS
-
SJU
7h 55m
1 stop
Delta Logo
5:49 pm - 12:18 am
SJU
-
AUS
7h 29m
1 stop
$356Delta
Mon, Aug 10 - Fri, Aug 14
Southwest Logo
9:20 am - 9:55 pm
AUS
-
SJU
11h 35m
1 stop
Southwest Logo
5:55 am - 1:10 pm
SJU
-
AUS
8h 15m
1 stop
$361Southwest
Sat, Aug 8 - Sat, Aug 15
Frontier Logo
5:38 pm - 2:16 pm
AUS
-
SJU
19h 38m
1 stop
Frontier Logo
6:31 pm - 7:03 pm
SJU
-
AUS
25h 32m
2 stops
$365Frontier
Sun, Aug 9 - Wed, Aug 12
American Airlines Logo
6:00 am - 4:56 pm
AUS
-
SJU
9h 56m
2 stops
American Airlines Logo
3:28 pm - 11:55 pm
SJU
-
AUS
9h 27m
1 stop
$366American Airlines
Sat, Aug 22 - Thu, Aug 27
Multiple Airlines Logo
7:45 pm - 7:57 am
AUS
-
SJU
11h 12m
1 stop
Multiple Airlines Logo
7:30 am - 12:38 pm
SJU
-
AUS
54h 08m
2 stops
$370Multiple Airlines
Sun, Aug 2 - Mon, Aug 10
American Airlines Logo
6:00 am - 6:24 pm
AUS
-
SJU
11h 24m
2 stops
American Airlines Logo
6:00 am - 2:47 pm
SJU
-
AUS
9h 47m
2 stops
$371American Airlines
Wed, Aug 19 - Tue, Aug 25
Multiple Airlines Logo
7:45 pm - 12:47 am
AUS
-
SJU
28h 02m
2 stops
Multiple Airlines Logo
5:15 pm - 12:38 pm
SJU
-
AUS
20h 23m
1 stop
$372Multiple Airlines
Sun, Aug 2 - Tue, Aug 11
United Airlines Logo
7:00 am - 3:42 pm
AUS
-
SJU
7h 42m
1 stop
United Airlines Logo
1:00 am - 1:12 pm
SJU
-
AUS
13h 12m
2 stops
$373United Airlines
Thu, Sep 10 - Wed, Sep 16

Frontier flights from Austin to San Juan

Our best Frontier deals on Austin to San Juan flight tickets
Frontier
Oct 13
AUS11:15 amAustin Bergstrom
8h 29m
1 stop
SJU8:44 pmSan Juan Luis Munoz Marin Intl
Oct 19
SJU2:58 amSan Juan Luis Munoz Marin Intl
8h 14m
1 stop
AUS10:12 amAustin Bergstrom
$336
Frontier
Aug 4
AUS5:38 pmAustin Bergstrom
43h 56m
2 stops
SJU2:34 pmSan Juan Luis Munoz Marin Intl
Aug 11
SJU5:15 pmSan Juan Luis Munoz Marin Intl
20h 23m
1 stop
AUS12:38 pmAustin Bergstrom
$354
Frontier
Aug 9
AUS5:38 pmAustin Bergstrom
19h 38m
1 stop
SJU2:16 pmSan Juan Luis Munoz Marin Intl
Aug 12
SJU6:31 pmSan Juan Luis Munoz Marin Intl
25h 32m
2 stops
AUS7:03 pmAustin Bergstrom
$365

American Airlines flights from Austin to San Juan

Our best American Airlines deals on Austin to San Juan flight tickets
American Airlines
Aug 22
AUS6:00 amAustin Bergstrom
11h 20m
2 stops
SJU6:20 pmSan Juan Luis Munoz Marin Intl
Aug 27
SJU1:38 pmSan Juan Luis Munoz Marin Intl
9h 12m
1 stop
AUS9:50 pmAustin Bergstrom
$366
American Airlines
Aug 19
AUS6:00 amAustin Bergstrom
11h 24m
2 stops
SJU6:24 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU6:00 amSan Juan Luis Munoz Marin Intl
9h 47m
2 stops
AUS2:47 pmAustin Bergstrom
$371
American Airlines
Sep 8
AUS5:00 amAustin Bergstrom
12h 24m
2 stops
SJU6:24 pmSan Juan Luis Munoz Marin Intl
Sep 11
SJU7:05 pmSan Juan Luis Munoz Marin Intl
16h 07m
1 stop
AUS10:12 amAustin Bergstrom
$391

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 May 18, 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 10/13

11:15 am-8:44 pm

1 stop8h 29m

San Juan Luis Munoz Marin Intl

Mon 10/19

2:58 am-10:12 am

1 stop8h 14m

$336

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 8/4

5:38 pm-2:34 pm

2 stops43h 56m

San Juan Luis Munoz Marin Intl

Tue 8/11

5:15 pm-12:38 pm

1 stop20h 23m

$354
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 8/10

1:34 pm-10:29 pm

1 stop7h 55m

San Juan Luis Munoz Marin Intl

Fri 8/14

5:49 pm-12:18 am

1 stop7h 29m

$356

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 8/8

9:20 am-9:55 pm

1 stop11h 35m

San Juan Luis Munoz Marin Intl

Sat 8/15

5:55 am-1:10 pm

1 stop8h 15m

$361

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 8/9

5:38 pm-2:16 pm

1 stop19h 38m

San Juan Luis Munoz Marin Intl

Wed 8/12

6:31 pm-7:03 pm

2 stops25h 32m

$365

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 8/22

6:00 am-4:56 pm

2 stops9h 56m

San Juan Luis Munoz Marin Intl

Thu 8/27

3:28 pm-11:55 pm

1 stop9h 27m

$366

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 8/2

7:45 pm-7:57 am

1 stop11h 12m

San Juan Luis Munoz Marin Intl

Mon 8/10

7:30 am-12:38 pm

2 stops54h 08m

$370

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 8/19

6:00 am-6:24 pm

2 stops11h 24m

San Juan Luis Munoz Marin Intl

Tue 8/25

6:00 am-2:47 pm

2 stops9h 47m

$371

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 8/2

7:45 pm-12:47 am

2 stops28h 02m

San Juan Luis Munoz Marin Intl

Tue 8/11

5:15 pm-12:38 pm

1 stop20h 23m

$372

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 9/10

7:00 am-3:42 pm

1 stop7h 42m

San Juan Luis Munoz Marin Intl

Wed 9/16

1:00 am-1:12 pm

2 stops13h 12m

$373

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?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in February, then December is your next best option. Flight prices from Austin to San Juan during December average around $87.

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 $429 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 $337 on momondo.

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
Spirit AirlinesPriceFrom $119Free CancellationRating
6.2
8,616 reviews
Search Spirit Airlines flights
FrontierPriceFrom $135Free CancellationRating
5.6
2,946 reviews
Search Frontier flights
DeltaPriceFrom $188Free CancellationRating
7.9
8,450 reviews
Search Delta flights
American AirlinesPriceFrom $225Free CancellationRating
7.1
11,648 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,736 reviews
Search United Airlines flights
SouthwestPriceFrom $263Free CancellationRating
7.9
4,286 reviews
Search Southwest flights
JetBluePriceFrom $311Free CancellationRating
7.1
2,979 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