Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Austin to San Juan from $183

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 8/15. 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
11:15 am - 1:50 am
AUS
-
SJU
13h 35m
1 stop
Frontier Logo
6:42 pm - 10:12 am
SJU
-
AUS
16h 30m
1 stop
$361Frontier
Sat, Sep 12 - Wed, Sep 16
Frontier Logo
11:00 am - 9:43 pm
AUS
-
SJU
9h 43m
1 stop
Frontier Logo
3:10 am - 4:38 pm
SJU
-
AUS
14h 28m
1 stop
$362Frontier
Fri, Aug 7 - Fri, Aug 14
Frontier Logo
7:43 pm - 12:41 am
AUS
-
SJU
27h 58m
2 stops
Frontier Logo
8:57 pm - 10:10 am
SJU
-
AUS
14h 13m
1 stop
$363Frontier
Sat, Aug 15 - Tue, Aug 18
Frontier Logo
7:43 pm - 12:41 am
AUS
-
SJU
27h 58m
2 stops
Frontier Logo
8:57 pm - 10:10 am
SJU
-
AUS
14h 13m
1 stop
$364Frontier
Sat, Aug 15 - Tue, Aug 18
Frontier Logo
11:15 am - 1:50 am
AUS
-
SJU
13h 35m
1 stop
Frontier Logo
3:00 am - 10:12 am
SJU
-
AUS
8h 12m
1 stop
$365Frontier
Sat, Sep 12 - Wed, Sep 16
Southwest Logo
11:40 am - 10:10 pm
AUS
-
SJU
9h 30m
2 stops
Southwest Logo
5:30 am - 8:00 pm
SJU
-
AUS
15h 30m
2 stops
$366Southwest
Mon, Aug 31 - Thu, Sep 3
Frontier Logo
11:15 am - 1:50 am
AUS
-
SJU
13h 35m
1 stop
Frontier Logo
6:42 pm - 10:12 am
SJU
-
AUS
16h 30m
1 stop
$367Frontier
Mon, Sep 21 - Wed, Sep 23
Frontier Logo
1:33 pm - 4:05 pm
AUS
-
SJU
25h 32m
2 stops
Frontier Logo
3:10 am - 9:32 am
SJU
-
AUS
7h 22m
1 stop
$368Frontier
Mon, Aug 3 - Sun, Aug 16
Frontier Logo
10:50 am - 11:57 pm
AUS
-
SJU
12h 07m
2 stops
Frontier Logo
3:00 am - 10:12 am
SJU
-
AUS
8h 12m
1 stop
$369Frontier
Tue, Sep 22 - Wed, Sep 23
Frontier Logo
10:55 am - 7:52 pm
AUS
-
SJU
7h 57m
1 stop
Frontier Logo
3:10 am - 10:10 am
SJU
-
AUS
8h 00m
1 stop
$370Frontier
Fri, Aug 21 - Tue, Aug 25

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

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 26
SJU7:00 amSan Juan Luis Munoz Marin Intl
7h 12m
1 stop
AUS1:12 pmAustin Bergstrom
$371
United Airlines
Aug 12
AUS9:33 amAustin Bergstrom
13h 17m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Aug 28
SJU2:20 pmSan Juan Luis Munoz Marin Intl
7h 47m
1 stop
AUS9:07 pmAustin Bergstrom
$403

Frontier flights from Austin to San Juan

Our best Frontier deals on Austin to San Juan flight tickets
Frontier
Sep 12
AUS11:15 amAustin Bergstrom
13h 35m
1 stop
SJU1:50 amSan Juan Luis Munoz Marin Intl
Sep 16
SJU6:42 pmSan Juan Luis Munoz Marin Intl
16h 30m
1 stop
AUS10:12 amAustin Bergstrom
$361
Frontier
Aug 7
AUS11:00 amAustin Bergstrom
9h 43m
1 stop
SJU9:43 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU3:10 amSan Juan Luis Munoz Marin Intl
14h 28m
1 stop
AUS4:38 pmAustin Bergstrom
$362
Frontier
Aug 15
AUS7:43 pmAustin Bergstrom
27h 58m
2 stops
SJU12:41 amSan Juan Luis Munoz Marin Intl
Aug 18
SJU8:57 pmSan Juan Luis Munoz Marin Intl
14h 13m
1 stop
AUS10:10 amAustin Bergstrom
$363

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 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

Sat 9/12

11:15 am-1:50 am

1 stop13h 35m

San Juan Luis Munoz Marin Intl

Wed 9/16

6:42 pm-10:12 am

1 stop16h 30m

$361

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 8/7

11:00 am-9:43 pm

1 stop9h 43m

San Juan Luis Munoz Marin Intl

Fri 8/14

3:10 am-4:38 pm

1 stop14h 28m

$362

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 8/15

7:43 pm-12:41 am

2 stops27h 58m

San Juan Luis Munoz Marin Intl

Tue 8/18

8:57 pm-10:10 am

1 stop14h 13m

$363

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 8/15

7:43 pm-12:41 am

2 stops27h 58m

San Juan Luis Munoz Marin Intl

Tue 8/18

8:57 pm-10:10 am

1 stop14h 13m

$364

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/12

11:15 am-1:50 am

1 stop13h 35m

San Juan Luis Munoz Marin Intl

Wed 9/16

3:00 am-10:12 am

1 stop8h 12m

$365

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 8/31

11:40 am-10:10 pm

2 stops9h 30m

San Juan Luis Munoz Marin Intl

Thu 9/3

5:30 am-8:00 pm

2 stops15h 30m

$366

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 9/21

11:15 am-1:50 am

1 stop13h 35m

San Juan Luis Munoz Marin Intl

Wed 9/23

6:42 pm-10:12 am

1 stop16h 30m

$367

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 8/3

1:33 pm-4:05 pm

2 stops25h 32m

San Juan Luis Munoz Marin Intl

Sun 8/16

3:10 am-9:32 am

1 stop7h 22m

$368

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 9/22

10:50 am-11:57 pm

2 stops12h 07m

San Juan Luis Munoz Marin Intl

Wed 9/23

3:00 am-10:12 am

1 stop8h 12m

$369
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 8/21

10:55 am-7:52 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

Tue 8/25

3:10 am-10:10 am

1 stop8h 00m

$370

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 January is your next best option. Flight prices from Austin to San Juan during January average around $367.

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 $436 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 $351 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
2,794 reviews
Search Frontier flights
DeltaPriceFrom $209Free CancellationRating
7.8
8,476 reviews
Search Delta flights
American AirlinesPriceFrom $225Free CancellationRating
7.1
11,825 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
10,006 reviews
Search United Airlines flights
SouthwestPriceFrom $261Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
JetBluePriceFrom $310Free CancellationRating
7.1
3,012 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
Mon 8/17
Mon 8/24
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