Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Austin to San Juan from $116

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 12/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Austin to San Juan

Cheap round-trip flights

United Airlines Logo
12:17 pm - 8:38 pmAUS-SJU
7h 21m1 stop
United Airlines Logo
6:45 am - 1:14 pmSJU-AUS
7h 29m1 stop
$245United Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 29
American Airlines Logo
1:12 pm - 10:10 pmAUS-SJU
7h 58m1 stop
American Airlines Logo
2:47 pm - 11:59 pmSJU-AUS
11h 12m1 stop
$251American Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 3
Multiple Airlines Logo
2:14 pm - 12:54 amAUS-SJU
9h 40m1 stop
Multiple Airlines Logo
2:12 am - 4:02 pmSJU-AUS
14h 50m1 stop
$257Multiple Airlines
Find Deal
Sat, Oct 18 - Sun, Oct 19
Frontier Logo
11:05 am - 12:41 amAUS-SJU
11h 36m1 stop
Frontier Logo
2:11 am - 4:02 pmSJU-AUS
15h 51m1 stop
$260Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Multiple Airlines Logo
4:30 pm - 3:16 pmAUS-SJU
21h 46m1 stop
Multiple Airlines Logo
9:00 am - 4:59 pmSJU-AUS
8h 59m1 stop
$263Multiple Airlines
Find Deal
Thu, Oct 23 - Mon, Oct 27
Frontier Logo
10:27 pm - 6:58 pmAUS-SJU
19h 31m2 stops
Frontier Logo
6:22 am - 9:52 pmSJU-AUS
16h 30m2 stops
$271Frontier
Find Deal
Fri, Oct 17 - Fri, Oct 24
Spirit Airlines Logo
9:56 am - 1:44 amAUS-SJU
14h 48m1 stop
Spirit Airlines Logo
2:49 am - 8:51 amSJU-AUS
7h 02m1 stop
$279Spirit Airlines
Find Deal
Fri, Oct 17 - Thu, Oct 23
Spirit Airlines Logo
8:48 pm - 9:52 amAUS-SJU
11h 04m1 stop
Spirit Airlines Logo
4:31 pm - 11:12 pmSJU-AUS
8h 41m1 stop
$286Spirit Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
Southwest Logo
8:45 pm - 9:55 amAUS-SJU
12h 10m1 stop
Southwest Logo
5:05 am - 3:25 pmSJU-AUS
11h 20m2 stops
$295Southwest
Find Deal
Mon, Oct 27 - Wed, Oct 29
Delta Logo
10:59 am - 11:10 pmAUS-SJU
10h 11m1 stop
Delta Logo
7:30 am - 5:23 pmSJU-AUS
11h 53m1 stop
$306Delta
Find Deal
Thu, Dec 11 - Mon, Dec 22

United Airlines flights from Austin to San Juan

Our best United Airlines deals on Austin to San Juan flight tickets
United Airlines
Oct 15
AUS12:17 pmAustin Bergstrom
7h 21m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Oct 29
SJU6:45 amSan Juan Luis Munoz Marin Intl
7h 29m
1 stop
AUS1:14 pmAustin Bergstrom
$245
Find similar
United Airlines
Oct 22
AUS2:05 pmAustin Bergstrom
8h 52m
1 stop
SJU11:57 pmSan Juan Luis Munoz Marin Intl
Oct 24
SJU1:05 amSan Juan Luis Munoz Marin Intl
11h 37m
2 stops
AUS11:42 amAustin Bergstrom
$267
Find similar
United Airlines
Oct 25
AUS12:12 pmAustin Bergstrom
7h 26m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Oct 28
SJU1:05 amSan Juan Luis Munoz Marin Intl
13h 51m
2 stops
AUS1:56 pmAustin Bergstrom
$277
Find similar

Frontier flights from Austin to San Juan

Our best Frontier deals on Austin to San Juan flight tickets
Frontier
Nov 13
AUS11:05 amAustin Bergstrom
11h 36m
1 stop
SJU12:41 amSan Juan Luis Munoz Marin Intl
Nov 16
SJU2:11 amSan Juan Luis Munoz Marin Intl
15h 51m
1 stop
AUS4:02 pmAustin Bergstrom
$260
Find similar
Frontier
Oct 17
AUS10:27 pmAustin Bergstrom
19h 31m
2 stops
SJU6:58 pmSan Juan Luis Munoz Marin Intl
Oct 24
SJU6:22 amSan Juan Luis Munoz Marin Intl
16h 30m
2 stops
AUS9:52 pmAustin Bergstrom
$271
Find similar
Frontier
Sep 29
AUS5:29 pmAustin Bergstrom
15h 27m
2 stops
SJU9:56 amSan Juan Luis Munoz Marin Intl
Oct 6
SJU10:57 amSan Juan Luis Munoz Marin Intl
8h 25m
1 stop
AUS6:22 pmAustin Bergstrom
$272
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 17, 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

Wed 10/15

12:17 pm-8:38 pm

1 stop7h 21m

San Juan Luis Munoz Marin Intl

Wed 10/29

6:45 am-1:14 pm

1 stop7h 29m

$245

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 10/30

1:12 pm-10:10 pm

1 stop7h 58m

San Juan Luis Munoz Marin Intl

Mon 11/3

2:47 pm-11:59 pm

1 stop11h 12m

$251

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 10/18

2:14 pm-12:54 am

1 stop9h 40m

San Juan Luis Munoz Marin Intl

Sun 10/19

2:12 am-4:02 pm

1 stop14h 50m

$257

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 11/13

11:05 am-12:41 am

1 stop11h 36m

San Juan Luis Munoz Marin Intl

Sun 11/16

2:11 am-4:02 pm

1 stop15h 51m

$260

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 10/23

4:30 pm-3:16 pm

1 stop21h 46m

San Juan Luis Munoz Marin Intl

Mon 10/27

9:00 am-4:59 pm

1 stop8h 59m

$263

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 10/17

10:27 pm-6:58 pm

2 stops19h 31m

San Juan Luis Munoz Marin Intl

Fri 10/24

6:22 am-9:52 pm

2 stops16h 30m

$271

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 10/17

9:56 am-1:44 am

1 stop14h 48m

San Juan Luis Munoz Marin Intl

Thu 10/23

2:49 am-8:51 am

1 stop7h 02m

$279

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 12/3

8:48 pm-9:52 am

1 stop11h 04m

San Juan Luis Munoz Marin Intl

Mon 12/8

4:31 pm-11:12 pm

1 stop8h 41m

$286

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 10/27

8:45 pm-9:55 am

1 stop12h 10m

San Juan Luis Munoz Marin Intl

Wed 10/29

5:05 am-3:25 pm

2 stops11h 20m

$295

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 12/11

10:59 am-11:10 pm

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Mon 12/22

7:30 am-5:23 pm

1 stop11h 53m

$306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $375.

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 $444 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 $397 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 15m

Direct flights

Sun

Airports in San Juan

1 airport
The fastest flight from Austin to San Juan takes 4h 15m
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 $145Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $177Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $251Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $270Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $275Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
JetBluePriceFrom $345Free CancellationRating
7.2
2,914 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 10/17
Fri 10/24
By creating a price alert you accept our terms of use and privacy policy.

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