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Cheap flights from Austin to San Juan from $113

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 10/7. 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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Find the cheapest flights from Austin to San Juan

Cheap round-trip flights

Southwest Logo
10:05 am - 7:45 pmAUS-SJU
8h 40m1 stop
Southwest Logo
3:55 pm - 10:00 pmSJU-AUS
8h 05m1 stop
$225Southwest
Find Deal
Fri, Oct 31 - Wed, Nov 12
Frontier Logo
10:34 am - 1:32 amAUS-SJU
12h 58m1 stop
Frontier Logo
2:11 am - 10:10 amSJU-AUS
9h 59m1 stop
$229Frontier
Find Deal
Thu, Nov 13 - Sat, Nov 15
Frontier Logo
11:03 am - 11:23 pmAUS-SJU
11h 20m1 stop
Frontier Logo
9:26 pm - 4:34 pmSJU-AUS
20h 08m2 stops
$234Frontier
Find Deal
Sun, Sep 14 - Thu, Sep 18
American Airlines Logo
6:29 pm - 12:39 pmAUS-SJU
17h 10m1 stop
American Airlines Logo
3:05 pm - 9:56 pmSJU-AUS
8h 51m1 stop
$251American Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 3
Logo
5:45 am - 2:11 pmAUS-SJU
31h 26m2 stops
Logo
12:28 am - 10:13 amSJU-AUS
10h 45m1 stop
$268
Find Deal
Tue, Sep 23 - Sat, Oct 4
United Airlines Logo
9:44 am - 11:57 pmAUS-SJU
13h 13m2 stops
United Airlines Logo
1:05 am - 11:04 amSJU-AUS
10h 59m2 stops
$270United Airlines
Find Deal
Sat, Oct 4 - Fri, Oct 10
United Airlines Logo
12:12 pm - 8:38 pmAUS-SJU
7h 26m1 stop
United Airlines Logo
1:05 am - 1:56 pmSJU-AUS
13h 51m2 stops
$272United Airlines
Find Deal
Sat, Oct 18 - Mon, Oct 27
Logo
5:45 am - 11:04 amAUS-SJU
28h 19m1 stop
Logo
10:57 am - 6:08 pmSJU-AUS
8h 11m1 stop
$279
Find Deal
Sat, Sep 20 - Sun, Oct 5
Delta Logo
10:59 am - 11:10 pmAUS-SJU
10h 11m1 stop
Delta Logo
6:36 pm - 12:27 amSJU-AUS
7h 51m1 stop
$283Delta
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Tue, Dec 2 - Sat, Dec 6
Delta Logo
10:45 am - 10:00 pmAUS-SJU
10h 15m1 stop
Delta Logo
7:30 am - 1:50 pmSJU-AUS
7h 20m1 stop
$300Delta
Find Deal
Sat, Sep 13 - Sat, Oct 4

Delta flights from Austin to San Juan

Our best Delta deals on Austin to San Juan flight tickets
Delta
Dec 2
AUS10:59 amAustin Bergstrom
10h 11m
1 stop
SJU11:10 pmSan Juan Luis Munoz Marin Intl
Dec 6
SJU6:36 pmSan Juan Luis Munoz Marin Intl
7h 51m
1 stop
AUS12:27 amAustin Bergstrom
$283
Find similar
Delta
Sep 13
AUS10:45 amAustin Bergstrom
10h 15m
1 stop
SJU10:00 pmSan Juan Luis Munoz Marin Intl
Oct 4
SJU7:30 amSan Juan Luis Munoz Marin Intl
7h 20m
1 stop
AUS1:50 pmAustin Bergstrom
$300
Find similar
Delta
Sep 16
AUS8:00 amAustin Bergstrom
7h 31m
1 stop
SJU4:31 pmSan Juan Luis Munoz Marin Intl
Sep 25
SJU5:41 pmSan Juan Luis Munoz Marin Intl
7h 32m
1 stop
AUS12:13 amAustin Bergstrom
$348
Find similar

Frontier flights from Austin to San Juan

Our best Frontier deals on Austin to San Juan flight tickets
Frontier
Sep 15
AUS5:29 pmAustin Bergstrom
15h 27m
2 stops
SJU9:56 amSan Juan Luis Munoz Marin Intl
Oct 4
SJU12:28 amSan Juan Luis Munoz Marin Intl
10h 45m
1 stop
AUS10:13 amAustin Bergstrom
$225
Find similar
Frontier
Nov 13
AUS10:34 amAustin Bergstrom
12h 58m
1 stop
SJU1:32 amSan Juan Luis Munoz Marin Intl
Nov 15
SJU2:11 amSan Juan Luis Munoz Marin Intl
9h 59m
1 stop
AUS10:10 amAustin Bergstrom
$229
Find similar
Frontier
Sep 14
AUS11:03 amAustin Bergstrom
11h 20m
1 stop
SJU11:23 pmSan Juan Luis Munoz Marin Intl
Sep 18
SJU9:26 pmSan Juan Luis Munoz Marin Intl
20h 08m
2 stops
AUS4:34 pmAustin Bergstrom
$234
Find similar

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 September 3, 2025.
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

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 10/31

10:05 am-7:45 pm

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Wed 11/12

3:55 pm-10:00 pm

1 stop8h 05m

$225

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 11/13

10:34 am-1:32 am

1 stop12h 58m

San Juan Luis Munoz Marin Intl

Sat 11/15

2:11 am-10:10 am

1 stop9h 59m

$229

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sun 9/14

11:03 am-11:23 pm

1 stop11h 20m

San Juan Luis Munoz Marin Intl

Thu 9/18

9:26 pm-4:34 pm

2 stops20h 08m

$234

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 10/30

6:29 pm-12:39 pm

1 stop17h 10m

San Juan Luis Munoz Marin Intl

Mon 11/3

3:05 pm-9:56 pm

1 stop8h 51m

$251

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 9/23

5:45 am-2:11 pm

2 stops31h 26m

San Juan Luis Munoz Marin Intl

Sat 10/4

12:28 am-10:13 am

1 stop10h 45m

$268

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 10/4

9:44 am-11:57 pm

2 stops13h 13m

San Juan Luis Munoz Marin Intl

Fri 10/10

1:05 am-11:04 am

2 stops10h 59m

$270

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 10/18

12:12 pm-8:38 pm

1 stop7h 26m

San Juan Luis Munoz Marin Intl

Mon 10/27

1:05 am-1:56 pm

2 stops13h 51m

$272

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/20

5:45 am-11:04 am

1 stop28h 19m

San Juan Luis Munoz Marin Intl

Sun 10/5

10:57 am-6:08 pm

1 stop8h 11m

$279

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 12/2

10:59 am-11:10 pm

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Sat 12/6

6:36 pm-12:27 am

1 stop7h 51m

$283

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/13

10:45 am-10:00 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Sat 10/4

7:30 am-1:50 pm

1 stop7h 20m

$300

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 October, then September is your next best option. Flight prices from Austin to San Juan during September average around $359.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Austin to San Juan is on a Wednesday when prices can be found for as low as $412. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $606.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the afternoon when flights can be purchased for as low as $396. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $606 on average. Flights to San Juan from Austin in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 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 $443 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 $387 on momondo.

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

There is only 1 cabin class available to choose from on Austin Bergstrom 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

1 airport
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 is 1 airport near San Juan: San Juan Luis Munoz Marin Intl (SJU)
Search flight deals

  • 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 6h 42m 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 $144Free CancellationRating
5.8
3,196 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $183Free CancellationRating
6.3
8,012 reviews
Search Spirit Airlines flights
DeltaPriceFrom $253Free CancellationRating
7.9
7,972 reviews
Search Delta flights
American AirlinesPriceFrom $267Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $284Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
JetBluePriceFrom $375Free CancellationRating
7.2
2,916 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.

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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