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Cheap flights from Austin to San Juan from $123

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 2/6. 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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Cheap round-trip flights

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Spirit Airlines Logo
6:00 am - 12:45 amAUS-SJU
16h 45m2 stops
Spirit Airlines Logo
4:10 am - 10:21 pmSJU-AUS
20h 11m1 stop
$293Spirit Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Multiple Airlines Logo
4:59 pm - 9:47 amAUS-SJU
14h 48m1 stop
Multiple Airlines Logo
3:55 am - 4:04 pmSJU-AUS
14h 09m1 stop
$294Multiple Airlines
Find Deal
Fri, Feb 6 - Tue, Feb 10
Spirit Airlines Logo
4:59 pm - 3:35 pmAUS-SJU
20h 36m3 stops
Spirit Airlines Logo
10:52 am - 4:04 pmSJU-AUS
31h 12m3 stops
$295Spirit Airlines
Find Deal
Fri, Jan 23 - Mon, Jan 26
Spirit Airlines Logo
5:30 am - 12:16 amAUS-SJU
16h 46m2 stops
Spirit Airlines Logo
6:59 pm - 10:21 pmSJU-AUS
29h 22m2 stops
$296Spirit Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Multiple Airlines Logo
10:18 am - 7:50 pmAUS-SJU
7h 32m1 stop
Multiple Airlines Logo
3:54 am - 5:10 pmSJU-AUS
15h 16m2 stops
$297Multiple Airlines
Find Deal
Mon, Dec 15 - Thu, Dec 18
Multiple Airlines Logo
5:30 am - 12:49 amAUS-SJU
17h 19m2 stops
Multiple Airlines Logo
1:32 pm - 9:45 pmSJU-AUS
10h 13m1 stop
$298Multiple Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Spirit Airlines Logo
4:59 pm - 9:47 amAUS-SJU
14h 48m1 stop
Spirit Airlines Logo
2:59 am - 10:34 amSJU-AUS
33h 35m2 stops
$299Spirit Airlines
Find Deal
Fri, Feb 6 - Sat, Feb 7
Spirit Airlines Logo
6:00 am - 12:16 amAUS-SJU
16h 16m1 stop
Spirit Airlines Logo
6:28 pm - 12:58 amSJU-AUS
8h 30m1 stop
$300Spirit Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 22
Spirit Airlines Logo
5:30 am - 8:39 pmAUS-SJU
13h 09m2 stops
Spirit Airlines Logo
4:10 am - 10:21 pmSJU-AUS
20h 11m1 stop
$301Spirit Airlines
Find Deal
Sat, Dec 6 - Sun, Dec 14
Multiple Airlines Logo
5:30 am - 12:16 amAUS-SJU
16h 46m2 stops
Multiple Airlines Logo
3:55 am - 9:43 amSJU-AUS
7h 48m1 stop
$302Multiple Airlines
Find Deal
Thu, Dec 11 - Sat, Dec 13

Spirit Airlines flights from Austin to San Juan

Our best Spirit Airlines deals on Austin to San Juan flight tickets
Spirit Airlines
Dec 5
AUS6:00 amAustin Bergstrom
16h 45m
2 stops
SJU12:45 amSan Juan Luis Munoz Marin Intl
Dec 8
SJU4:10 amSan Juan Luis Munoz Marin Intl
20h 11m
1 stop
AUS10:21 pmAustin Bergstrom
$293
Find similar
Spirit Airlines
Jan 23
AUS4:59 pmAustin Bergstrom
20h 36m
3 stops
SJU3:35 pmSan Juan Luis Munoz Marin Intl
Jan 26
SJU10:52 amSan Juan Luis Munoz Marin Intl
31h 12m
3 stops
AUS4:04 pmAustin Bergstrom
$295
Find similar
Spirit Airlines
Dec 5
AUS5:30 amAustin Bergstrom
16h 46m
2 stops
SJU12:16 amSan Juan Luis Munoz Marin Intl
Dec 8
SJU6:59 pmSan Juan Luis Munoz Marin Intl
29h 22m
2 stops
AUS10:21 pmAustin Bergstrom
$296
Find similar

American Airlines flights from Austin to San Juan

Our best American Airlines deals on Austin to San Juan flight tickets
American Airlines
Dec 16
AUS5:00 amAustin Bergstrom
9h 08m
1 stop
SJU4:08 pmSan Juan Luis Munoz Marin Intl
Dec 19
SJU6:44 amSan Juan Luis Munoz Marin Intl
10h 48m
1 stop
AUS3:32 pmAustin Bergstrom
$312
Find similar
American Airlines
Dec 1
AUS3:31 pmAustin Bergstrom
12h 39m
1 stop
SJU6:10 amSan Juan Luis Munoz Marin Intl
Dec 6
SJU6:42 pmSan Juan Luis Munoz Marin Intl
8h 17m
1 stop
AUS12:59 amAustin Bergstrom
$395
Find similar
American Airlines
Dec 1
AUS1:43 pmAustin Bergstrom
9h 01m
2 stops
SJU12:44 amSan Juan Luis Munoz Marin Intl
Dec 6
SJU2:05 pmSan Juan Luis Munoz Marin Intl
10h 06m
1 stop
AUS10:11 pmAustin Bergstrom
$433
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 November 23, 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 12/5

6:00 am-12:45 am

2 stops16h 45m

San Juan Luis Munoz Marin Intl

Mon 12/8

4:10 am-10:21 pm

1 stop20h 11m

$293

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 2/6

4:59 pm-9:47 am

1 stop14h 48m

San Juan Luis Munoz Marin Intl

Tue 2/10

3:55 am-4:04 pm

1 stop14h 09m

$294

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 1/23

4:59 pm-3:35 pm

3 stops20h 36m

San Juan Luis Munoz Marin Intl

Mon 1/26

10:52 am-4:04 pm

3 stops31h 12m

$295

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 12/5

5:30 am-12:16 am

2 stops16h 46m

San Juan Luis Munoz Marin Intl

Mon 12/8

6:59 pm-10:21 pm

2 stops29h 22m

$296

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 12/15

10:18 am-7:50 pm

1 stop7h 32m

San Juan Luis Munoz Marin Intl

Thu 12/18

3:54 am-5:10 pm

2 stops15h 16m

$297

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 12/6

5:30 am-12:49 am

2 stops17h 19m

San Juan Luis Munoz Marin Intl

Sat 12/13

1:32 pm-9:45 pm

1 stop10h 13m

$298

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 2/6

4:59 pm-9:47 am

1 stop14h 48m

San Juan Luis Munoz Marin Intl

Sat 2/7

2:59 am-10:34 am

2 stops33h 35m

$299

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 12/12

6:00 am-12:16 am

1 stop16h 16m

San Juan Luis Munoz Marin Intl

Mon 12/22

6:28 pm-12:58 am

1 stop8h 30m

$300

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 12/6

5:30 am-8:39 pm

2 stops13h 09m

San Juan Luis Munoz Marin Intl

Sun 12/14

4:10 am-10:21 pm

1 stop20h 11m

$301

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Thu 12/11

5:30 am-12:16 am

2 stops16h 46m

San Juan Luis Munoz Marin Intl

Sat 12/13

3:55 am-9:43 am

1 stop7h 48m

$302

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 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 $374.

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 $587.

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 $587 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 $438 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 $376 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 32m 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 $150Free CancellationRating
5.8
3,100 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $177Free CancellationRating
6.3
8,160 reviews
Search Spirit Airlines flights
DeltaPriceFrom $232Free CancellationRating
7.9
7,999 reviews
Search Delta flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
United AirlinesPriceFrom $255Free CancellationRating
7.4
9,035 reviews
Search United Airlines flights
SouthwestPriceFrom $265Free CancellationRating
8.0
4,251 reviews
Search Southwest flights
JetBluePriceFrom $311Free CancellationRating
7.2
2,901 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