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Cheap flights from Austin to San Juan from $178

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 7/28. 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.
Southwest Logo
6:35 am - 4:25 pm
AUS
-
SJU
8h 50m
2 stops
Southwest Logo
6:00 am - 4:20 pm
SJU
-
AUS
11h 20m
2 stops
$366Southwest
on., aug. 19 - ti., aug. 25
Frontier Logo
10:50 am - 11:57 pm
AUS
-
SJU
12h 07m
2 stops
Frontier Logo
4:30 pm - 9:48 am
SJU
-
AUS
18h 18m
1 stop
$368Frontier
lø., sep. 19 - ma., sep. 21
Frontier Logo
1:33 pm - 2:16 pm
AUS
-
SJU
23h 43m
1 stop
Frontier Logo
6:26 am - 12:38 pm
SJU
-
AUS
31h 12m
2 stops
$369Frontier
lø., aug. 1 - to., aug. 6
Frontier Logo
10:50 am - 11:57 pm
AUS
-
SJU
12h 07m
2 stops
Frontier Logo
6:42 pm - 10:12 am
SJU
-
AUS
16h 30m
1 stop
$370Frontier
lø., sep. 19 - sø., sep. 20
American Airlines Logo
6:21 am - 12:15 am
AUS
-
SJU
16h 54m
1 stop
American Airlines Logo
6:27 am - 7:10 pm
SJU
-
AUS
13h 43m
2 stops
$371American Airlines
lø., sep. 5 - on., sep. 9
United Airlines Logo
7:44 pm - 5:29 am
AUS
-
SJU
8h 45m
1 stop
United Airlines Logo
2:05 am - 8:37 am
SJU
-
AUS
7h 32m
1 stop
$372United Airlines
sø., aug. 9 - ma., aug. 10
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
$373Southwest
to., aug. 20 - ma., aug. 24
Frontier Logo
11:00 am - 11:06 am
AUS
-
SJU
23h 06m
1 stop
Frontier Logo
6:35 am - 4:39 pm
SJU
-
AUS
35h 04m
2 stops
$374Frontier
ma., aug. 17 - ma., aug. 24
Frontier Logo
5:34 pm - 12:41 am
AUS
-
SJU
30h 07m
2 stops
Frontier Logo
8:37 pm - 9:32 am
SJU
-
AUS
13h 55m
1 stop
$375Frontier
to., aug. 6 - ti., aug. 11
United Airlines Logo
12:15 pm - 8:38 pm
AUS
-
SJU
7h 23m
1 stop
United Airlines Logo
1:00 am - 9:26 am
SJU
-
AUS
9h 26m
1 stop
$376United Airlines
lø., aug. 8 - sø., aug. 16

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American Airlines flights from Austin to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Austin to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Sep 5
AUS6:21 amAustin Bergstrom
16h 54m
1 stop
SJU12:15 amSan Juan Luis Munoz Marin Intl
Sep 9
SJU6:27 amSan Juan Luis Munoz Marin Intl
13h 43m
2 stops
AUS7:10 pmAustin Bergstrom
$371
American Airlines
Sep 8
AUS5:00 amAustin Bergstrom
12h 33m
2 stops
SJU6:33 pmSan Juan Luis Munoz Marin Intl
Sep 11
SJU6:27 amSan Juan Luis Munoz Marin Intl
10h 15m
2 stops
AUS3:42 pmAustin Bergstrom
$381
American Airlines
Aug 14
AUS6:21 amAustin Bergstrom
16h 38m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Aug 17
SJU7:30 amSan Juan Luis Munoz Marin Intl
15h 56m
1 stop
AUS10:26 pmAustin Bergstrom
$401

Frontier flights from Austin to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Austin to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Sep 19
AUS10:50 amAustin Bergstrom
12h 07m
2 stops
SJU11:57 pmSan Juan Luis Munoz Marin Intl
Sep 21
SJU4:30 pmSan Juan Luis Munoz Marin Intl
18h 18m
1 stop
AUS9:48 amAustin Bergstrom
$368
Frontier
Aug 1
AUS1:33 pmAustin Bergstrom
23h 43m
1 stop
SJU2:16 pmSan Juan Luis Munoz Marin Intl
Aug 6
SJU6:26 amSan Juan Luis Munoz Marin Intl
31h 12m
2 stops
AUS12:38 pmAustin Bergstrom
$369
Frontier
Sep 19
AUS10:50 amAustin Bergstrom
12h 07m
2 stops
SJU11:57 pmSan Juan Luis Munoz Marin Intl
Sep 20
SJU6:42 pmSan Juan Luis Munoz Marin Intl
16h 30m
1 stop
AUS10:12 amAustin Bergstrom
$370

momondo Fare Finder

 
Customize your flight search to find flights from Austin to San Juan Luis Munoz Marin Intl Airport 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 juli 2, 2026.
Use the filters below to find and compare flights from Austin to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

on. 8/19

6:35 am-4:25 pm

2 stops8h 50m

San Juan Luis Munoz Marin Intl

ti. 8/25

6:00 am-4:20 pm

2 stops11h 20m

$366

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

lø. 9/19

10:50 am-11:57 pm

2 stops12h 07m

San Juan Luis Munoz Marin Intl

ma. 9/21

4:30 pm-9:48 am

1 stop18h 18m

$368

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

lø. 8/1

1:33 pm-2:16 pm

1 stop23h 43m

San Juan Luis Munoz Marin Intl

to. 8/6

6:26 am-12:38 pm

2 stops31h 12m

$369

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

lø. 9/19

10:50 am-11:57 pm

2 stops12h 07m

San Juan Luis Munoz Marin Intl

sø. 9/20

6:42 pm-10:12 am

1 stop16h 30m

$370

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

lø. 9/5

6:21 am-12:15 am

1 stop16h 54m

San Juan Luis Munoz Marin Intl

on. 9/9

6:27 am-7:10 pm

2 stops13h 43m

$371
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

sø. 8/9

7:44 pm-5:29 am

1 stop8h 45m

San Juan Luis Munoz Marin Intl

ma. 8/10

2:05 am-8:37 am

1 stop7h 32m

$372

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

to. 8/20

11:40 am-10:10 pm

2 stops9h 30m

San Juan Luis Munoz Marin Intl

ma. 8/24

5:30 am-8:00 pm

2 stops15h 30m

$373

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

ma. 8/17

11:00 am-11:06 am

1 stop23h 06m

San Juan Luis Munoz Marin Intl

ma. 8/24

6:35 am-4:39 pm

2 stops35h 04m

$374

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

to. 8/6

5:34 pm-12:41 am

2 stops30h 07m

San Juan Luis Munoz Marin Intl

ti. 8/11

8:37 pm-9:32 am

1 stop13h 55m

$375

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

lø. 8/8

12:15 pm-8:38 pm

1 stop7h 23m

San Juan Luis Munoz Marin Intl

sø. 8/16

1:00 am-9:26 am

1 stop9h 26m

$376

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Austin to San Juan Luis Munoz Marin Intl Airport

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 Luis Munoz Marin Intl Airport?

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $368.

What is the cheapest Austin Bergstrom to San Juan Luis Munoz Marin Intl flight route?

Fly from Austin Bergstrom to San Juan Luis Munoz Marin Intl for the best Austin Bergstrom - San Juan Luis Munoz Marin Intl flight prices

How far in advance should I book a flight from Austin to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $432 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Austin for as low as $341 on momondo.

What cabin class options are available on Austin to San Juan Luis Munoz Marin Intl Airport flights?

There is only 1 cabin class available to choose from on Austin to San Juan Luis Munoz Marin Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Austin to San Juan Luis Munoz Marin Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Austin to San Juan Luis Munoz Marin Intl Airport.

How have Austin to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of July 2026, prices for Austin to San Juan Luis Munoz Marin Intl Airport flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Austin to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to San Juan Luis Munoz Marin Intl Airport (AUS to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

4h 25m

Direct flights

Sun
The fastest flight from Austin to San Juan Luis Munoz Marin Intl Airport takes 4h 25m
Direct flights go from Austin to San Juan Luis Munoz Marin Intl Airport on Sunday. The only airline offering direct flights is Southwest.
Search flight deals

Frequently asked questions about flying from Austin to San Juan Luis Munoz Marin Intl Airport

  • How far is Austin Bergstrom to San Juan Luis Munoz Marin Intl by plane?

    Austin Bergstrom and San Juan Luis Munoz Marin Intl are 2148.0 mi apart from one another. By plane, this route typically takes 4h 25m.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to San Juan Luis Munoz Marin Intl Airport?

    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 Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Austin to San Juan Luis Munoz Marin Intl Airport?

  • What is the most popular airline from Austin to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Austin to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Austin to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $138Free CancellationRating
5.6
2,850 reviews
Search Frontier flights
DeltaPriceFrom $200Free CancellationRating
7.8
8,452 reviews
Search Delta flights
American AirlinesPriceFrom $225Free CancellationRating
7.1
11,769 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,926 reviews
Search United Airlines flights
SouthwestPriceFrom $256Free CancellationRating
7.9
4,249 reviews
Search Southwest flights
JetBluePriceFrom $313Free CancellationRating
7.1
3,008 reviews
Search JetBlue flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Caguas
Bayamón

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?

Yes. momondo enables you to select and highlight flights to San Juan from Austin with this policy.

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?

Of course. momondo tracks the price of Austin to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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