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Cheap flights from Austin to San Juan from $160

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 8/19. 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 - 8:44 pm
AUS
-
SJU
8h 29m
1 stop
Frontier Logo
2:58 am - 10:12 am
SJU
-
AUS
8h 14m
1 stop
$359Frontier
Wed, Oct 14 - Mon, Oct 19
Southwest Logo
6:40 am - 4:40 pm
AUS
-
SJU
9h 00m
1 stop
Southwest Logo
6:00 am - 1:55 pm
SJU
-
AUS
8h 55m
2 stops
$361Southwest
Sat, Sep 5 - Thu, Sep 10
Delta Logo
8:15 am - 4:49 pm
AUS
-
SJU
7h 34m
1 stop
Delta Logo
12:56 pm - 11:13 pm
SJU
-
AUS
11h 17m
1 stop
$366Delta
Tue, Sep 8 - Fri, Sep 11
American Airlines Logo
6:21 am - 11:59 pm
AUS
-
SJU
16h 38m
1 stop
American Airlines Logo
5:47 pm - 10:06 am
SJU
-
AUS
17h 19m
1 stop
$368American Airlines
Fri, Aug 14 - Sun, Aug 16
American Airlines Logo
5:35 pm - 9:24 am
AUS
-
SJU
14h 49m
2 stops
American Airlines Logo
2:58 pm - 9:50 pm
SJU
-
AUS
7h 52m
1 stop
$371American Airlines
Wed, Sep 9 - Wed, Sep 23
American Airlines Logo
12:05 pm - 9:59 pm
AUS
-
SJU
8h 54m
1 stop
American Airlines Logo
7:30 am - 7:21 pm
SJU
-
AUS
12h 51m
1 stop
$372American Airlines
Wed, Jul 29 - Tue, Aug 11
Multiple Airlines Logo
4:07 pm - 4:11 pm
AUS
-
SJU
23h 04m
2 stops
Multiple Airlines Logo
6:09 pm - 10:10 am
SJU
-
AUS
17h 01m
1 stop
$373Multiple Airlines
Fri, Aug 14 - Tue, Aug 18
American Airlines Logo
5:35 pm - 11:00 am
AUS
-
SJU
16h 25m
2 stops
American Airlines Logo
8:30 am - 5:34 pm
SJU
-
AUS
10h 04m
1 stop
$374American Airlines
Mon, Sep 28 - Wed, Oct 7
American Airlines Logo
6:02 pm - 12:40 pm
AUS
-
SJU
17h 38m
1 stop
American Airlines Logo
7:30 am - 7:21 pm
SJU
-
AUS
12h 51m
1 stop
$376American Airlines
Fri, Sep 4 - Tue, Sep 8
Frontier Logo
10:43 am - 7:42 pm
AUS
-
SJU
7h 59m
1 stop
Frontier Logo
6:26 am - 4:39 pm
SJU
-
AUS
35h 13m
2 stops
$377Frontier
Wed, Aug 5 - Wed, Aug 12

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Frontier flights from Austin to San Juan

Our best Frontier deals on Austin to San Juan flight tickets
Frontier
Oct 14
AUS11:15 amAustin Bergstrom
8h 29m
1 stop
SJU8:44 pmSan Juan Luis Munoz Marin Intl
Oct 19
SJU2:58 amSan Juan Luis Munoz Marin Intl
8h 14m
1 stop
AUS10:12 amAustin Bergstrom
$359
Frontier
Aug 5
AUS10:43 amAustin Bergstrom
7h 59m
1 stop
SJU7:42 pmSan Juan Luis Munoz Marin Intl
Aug 12
SJU6:26 amSan Juan Luis Munoz Marin Intl
35h 13m
2 stops
AUS4:39 pmAustin Bergstrom
$377
Frontier
Aug 12
AUS10:43 amAustin Bergstrom
14h 32m
1 stop
SJU2:15 amSan Juan Luis Munoz Marin Intl
Aug 16
SJU6:26 amSan Juan Luis Munoz Marin Intl
31h 12m
2 stops
AUS12:38 pmAustin Bergstrom
$378

Southwest flights from Austin to San Juan

Our best Southwest deals on Austin to San Juan flight tickets
Southwest
Sep 5
AUS6:40 amAustin Bergstrom
9h 00m
1 stop
SJU4:40 pmSan Juan Luis Munoz Marin Intl
Sep 10
SJU6:00 amSan Juan Luis Munoz Marin Intl
8h 55m
2 stops
AUS1:55 pmAustin Bergstrom
$361
Southwest
Sep 4
AUS8:50 amAustin Bergstrom
13h 00m
1 stop
SJU10:50 pmSan Juan Luis Munoz Marin Intl
Sep 8
SJU6:00 amSan Juan Luis Munoz Marin Intl
10h 10m
1 stop
AUS3:10 pmAustin Bergstrom
$366
Southwest
Sep 17
AUS1:40 pmAustin Bergstrom
8h 25m
2 stops
SJU11:05 pmSan Juan Luis Munoz Marin Intl
Sep 21
SJU5:30 amSan Juan Luis Munoz Marin Intl
15h 30m
2 stops
AUS8:00 pmAustin Bergstrom
$386

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 June 20, 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
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 10/14

11:15 am-8:44 pm

1 stop8h 29m

San Juan Luis Munoz Marin Intl

Mon 10/19

2:58 am-10:12 am

1 stop8h 14m

$359

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 9/5

6:40 am-4:40 pm

1 stop9h 00m

San Juan Luis Munoz Marin Intl

Thu 9/10

6:00 am-1:55 pm

2 stops8h 55m

$361

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Tue 9/8

8:15 am-4:49 pm

1 stop7h 34m

San Juan Luis Munoz Marin Intl

Fri 9/11

12:56 pm-11:13 pm

1 stop11h 17m

$366

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 8/14

6:21 am-11:59 pm

1 stop16h 38m

San Juan Luis Munoz Marin Intl

Sun 8/16

5:47 pm-10:06 am

1 stop17h 19m

$368

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 9/9

5:35 pm-9:24 am

2 stops14h 49m

San Juan Luis Munoz Marin Intl

Wed 9/23

2:58 pm-9:50 pm

1 stop7h 52m

$371

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 7/29

12:05 pm-9:59 pm

1 stop8h 54m

San Juan Luis Munoz Marin Intl

Tue 8/11

7:30 am-7:21 pm

1 stop12h 51m

$372

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 8/14

4:07 pm-4:11 pm

2 stops23h 04m

San Juan Luis Munoz Marin Intl

Tue 8/18

6:09 pm-10:10 am

1 stop17h 01m

$373

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 9/28

5:35 pm-11:00 am

2 stops16h 25m

San Juan Luis Munoz Marin Intl

Wed 10/7

8:30 am-5:34 pm

1 stop10h 04m

$374

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 9/4

6:02 pm-12:40 pm

1 stop17h 38m

San Juan Luis Munoz Marin Intl

Tue 9/8

7:30 am-7:21 pm

1 stop12h 51m

$376

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Wed 8/5

10:43 am-7:42 pm

1 stop7h 59m

San Juan Luis Munoz Marin Intl

Wed 8/12

6:26 am-4:39 pm

2 stops35h 13m

$377

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 February, then December is your next best option. Flight prices from Austin to San Juan during December average around $87.

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 $428 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
2,879 reviews
Search Frontier flights
DeltaPriceFrom $200Free CancellationRating
7.8
8,419 reviews
Search Delta flights
American AirlinesPriceFrom $225Free CancellationRating
7.1
11,709 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,865 reviews
Search United Airlines flights
SouthwestPriceFrom $257Free CancellationRating
7.9
4,241 reviews
Search Southwest flights
JetBluePriceFrom $311Free CancellationRating
7.1
2,987 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