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Cheap flights from Austin to San Juan from $140

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 7/4. 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.

Find the cheapest flights from Austin to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:37 am - 5:21 pm
AUS
-
SJU
29h 44m
1 stop
Frontier Logo
6:00 am - 9:52 am
SJU
-
AUS
28h 52m
1 stop
$301Frontier
Wed, Jun 10 - Tue, Jun 16
Frontier Logo
5:42 pm - 7:55 am
AUS
-
SJU
13h 13m
1 stop
Frontier Logo
6:16 pm - 9:52 am
SJU
-
AUS
16h 36m
1 stop
$303Frontier
Sat, Jun 13 - Sun, Jun 21
Frontier Logo
11:30 am - 8:04 am
AUS
-
SJU
19h 34m
1 stop
Frontier Logo
3:03 am - 10:50 am
SJU
-
AUS
8h 47m
1 stop
$311Frontier
Sat, May 16 - Fri, May 22
Frontier Logo
10:37 am - 11:29 pm
AUS
-
SJU
11h 52m
1 stop
Frontier Logo
3:06 am - 9:37 am
SJU
-
AUS
7h 31m
1 stop
$321Frontier
Fri, Aug 14 - Sun, Aug 16
Frontier Logo
5:42 pm - 7:57 am
AUS
-
SJU
13h 15m
1 stop
Frontier Logo
3:06 am - 9:37 am
SJU
-
AUS
7h 31m
1 stop
$323Frontier
Sat, Jul 4 - Thu, Jul 9
Frontier Logo
5:42 pm - 2:09 am
AUS
-
SJU
7h 27m
1 stop
Frontier Logo
6:00 am - 4:50 pm
SJU
-
AUS
11h 50m
1 stop
$331Frontier
Sat, Jun 20 - Sat, Jun 27
Multiple Airlines Logo
12:44 pm - 1:00 pm
AUS
-
SJU
23h 16m
2 stops
Multiple Airlines Logo
2:59 am - 9:52 am
SJU
-
AUS
7h 53m
1 stop
$335Multiple Airlines
Sat, Jun 13 - Sun, Jun 14
Frontier Logo
11:35 am - 11:22 pm
AUS
-
SJU
10h 47m
1 stop
Frontier Logo
6:09 pm - 10:50 am
SJU
-
AUS
17h 41m
1 stop
$339Frontier
Mon, Jun 1 - Sun, Jun 7
Frontier Logo
5:23 pm - 2:11 am
AUS
-
SJU
7h 48m
1 stop
Frontier Logo
9:24 am - 9:37 am
SJU
-
AUS
25h 13m
1 stop
$340Frontier
Sat, Jul 11 - Sun, Jul 19
Frontier Logo
5:23 pm - 2:11 am
AUS
-
SJU
7h 48m
1 stop
Frontier Logo
6:00 am - 4:38 pm
SJU
-
AUS
11h 38m
1 stop
$343Frontier
Sat, Jul 11 - Sat, Jul 18

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Delta flights from Austin to San Juan

Our best Delta deals on Austin to San Juan flight tickets
Delta
Aug 2
AUS6:25 amAustin Bergstrom
9h 20m
1 stop
SJU4:45 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU5:49 pmSan Juan Luis Munoz Marin Intl
7h 29m
1 stop
AUS12:18 amAustin Bergstrom
$356
Delta
May 7
AUS1:31 pmAustin Bergstrom
7h 46m
1 stop
SJU10:17 pmSan Juan Luis Munoz Marin Intl
May 13
SJU7:30 amSan Juan Luis Munoz Marin Intl
9h 25m
1 stop
AUS3:55 pmAustin Bergstrom
$546

Frontier flights from Austin to San Juan

Our best Frontier deals on Austin to San Juan flight tickets
Frontier
Jun 10
AUS10:37 amAustin Bergstrom
29h 44m
1 stop
SJU5:21 pmSan Juan Luis Munoz Marin Intl
Jun 16
SJU6:00 amSan Juan Luis Munoz Marin Intl
28h 52m
1 stop
AUS9:52 amAustin Bergstrom
$301
Frontier
Jun 13
AUS5:42 pmAustin Bergstrom
13h 13m
1 stop
SJU7:55 amSan Juan Luis Munoz Marin Intl
Jun 21
SJU6:16 pmSan Juan Luis Munoz Marin Intl
16h 36m
1 stop
AUS9:52 amAustin Bergstrom
$303
Frontier
May 16
AUS11:30 amAustin Bergstrom
19h 34m
1 stop
SJU8:04 amSan Juan Luis Munoz Marin Intl
May 22
SJU3:03 amSan Juan Luis Munoz Marin Intl
8h 47m
1 stop
AUS10:50 amAustin Bergstrom
$311

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 May 5, 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

Wed 6/10

10:37 am-5:21 pm

1 stop29h 44m

San Juan Luis Munoz Marin Intl

Tue 6/16

6:00 am-9:52 am

1 stop28h 52m

$301

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 6/13

5:42 pm-7:55 am

1 stop13h 13m

San Juan Luis Munoz Marin Intl

Sun 6/21

6:16 pm-9:52 am

1 stop16h 36m

$303

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 5/16

11:30 am-8:04 am

1 stop19h 34m

San Juan Luis Munoz Marin Intl

Fri 5/22

3:03 am-10:50 am

1 stop8h 47m

$311

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Fri 8/14

10:37 am-11:29 pm

1 stop11h 52m

San Juan Luis Munoz Marin Intl

Sun 8/16

3:06 am-9:37 am

1 stop7h 31m

$321

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 7/4

5:42 pm-7:57 am

1 stop13h 15m

San Juan Luis Munoz Marin Intl

Thu 7/9

3:06 am-9:37 am

1 stop7h 31m

$323
Quickest round-trip

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 6/20

5:42 pm-2:09 am

1 stop7h 27m

San Juan Luis Munoz Marin Intl

Sat 6/27

6:00 am-4:50 pm

1 stop11h 50m

$331

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 6/13

12:44 pm-1:00 pm

2 stops23h 16m

San Juan Luis Munoz Marin Intl

Sun 6/14

2:59 am-9:52 am

1 stop7h 53m

$335

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Mon 6/1

11:35 am-11:22 pm

1 stop10h 47m

San Juan Luis Munoz Marin Intl

Sun 6/7

6:09 pm-10:50 am

1 stop17h 41m

$339

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 7/11

5:23 pm-2:11 am

1 stop7h 48m

San Juan Luis Munoz Marin Intl

Sun 7/19

9:24 am-9:37 am

1 stop25h 13m

$340

AustinSan Juan

AUS - SJU

AUSSJU

Austin Bergstrom

Sat 7/11

5:23 pm-2:11 am

1 stop7h 48m

San Juan Luis Munoz Marin Intl

Sat 7/18

6:00 am-4:38 pm

1 stop11h 38m

$343

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 $425 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 $346 on momondo.

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

6h 13m

Direct flights

Sun

Airports in San Juan

2 airports
The fastest flight from Austin to San Juan takes 6h 13m
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 6h 13m 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
Spirit AirlinesPriceFrom $119Free CancellationRating
6.3
8,635 reviews
Search Spirit Airlines flights
FrontierPriceFrom $135Free CancellationRating
5.6
2,965 reviews
Search Frontier flights
DeltaPriceFrom $200Free CancellationRating
7.9
8,459 reviews
Search Delta flights
American AirlinesPriceFrom $225Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,683 reviews
Search United Airlines flights
SouthwestPriceFrom $260Free CancellationRating
7.9
4,305 reviews
Search Southwest flights
JetBluePriceFrom $308Free CancellationRating
7.1
2,977 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