Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Antonio to San Juan from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to San Juan departing on 1/15. 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
0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from San Antonio to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:53 pm - 9:57 am
SAT
-
SJU
11h 04m1 stop
Frontier Logo
3:08 am - 1:23 pm
SJU
-
SAT
11h 15m1 stop
$227Frontier
Sat, Mar 7 - Mon, Mar 16
Frontier Logo
1:57 pm - 2:53 am
SAT
-
SJU
10h 56m1 stop
Frontier Logo
3:53 am - 1:12 pm
SJU
-
SAT
11h 19m1 stop
$231Frontier
Mon, Feb 23 - Wed, Feb 25
Frontier Logo
1:57 pm - 2:53 am
SAT
-
SJU
10h 56m1 stop
Frontier Logo
3:53 am - 1:18 pm
SJU
-
SAT
11h 25m1 stop
$232Frontier
Thu, Feb 19 - Fri, Feb 27
Frontier Logo
2:13 pm - 1:58 am
SAT
-
SJU
10h 45m1 stop
Frontier Logo
3:08 am - 1:23 pm
SJU
-
SAT
11h 15m1 stop
$234Frontier
Tue, Mar 24 - Mon, Mar 30
Frontier Logo
2:13 pm - 10:45 pm
SAT
-
SJU
7h 32m1 stop
Frontier Logo
3:08 am - 1:23 pm
SJU
-
SAT
11h 15m1 stop
$235Frontier
Tue, Mar 24 - Mon, Mar 30
Frontier Logo
1:52 pm - 2:53 am
SAT
-
SJU
11h 01m1 stop
Frontier Logo
6:30 am - 1:55 pm
SJU
-
SAT
8h 25m1 stop
$242Frontier
Mon, Mar 2 - Mon, Mar 16
United Airlines Logo
11:43 am - 9:26 pm
SAT
-
SJU
7h 43m1 stop
United Airlines Logo
2:05 am - 3:31 pm
SJU
-
SAT
15h 26m2 stops
$245United Airlines
Sun, Feb 1 - Mon, Feb 2
Delta Logo
1:34 pm - 11:58 pm
SAT
-
SJU
8h 24m1 stop
Delta Logo
6:37 pm - 12:35 am
SJU
-
SAT
7h 58m1 stop
$246Delta
Tue, Feb 24 - Wed, Mar 4
Frontier Logo
1:52 pm - 2:53 am
SAT
-
SJU
11h 01m1 stop
Frontier Logo
6:30 am - 1:55 pm
SJU
-
SAT
8h 25m1 stop
$249Frontier
Mon, Mar 2 - Mon, Mar 16
American Airlines Logo
5:10 pm - 12:27 pm
SAT
-
SJU
17h 17m1 stop
American Airlines Logo
6:00 am - 2:16 pm
SJU
-
SAT
10h 16m2 stops
$250American Airlines
Fri, Jan 23 - Wed, Feb 4

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

Our best Frontier deals on San Antonio to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Mar 7
SAT8:53 pmSan Antonio
11h 04m
1 stop
SJU9:57 amSan Juan Luis Munoz Marin Intl
Mar 16
SJU3:08 amSan Juan Luis Munoz Marin Intl
11h 15m
1 stop
SAT1:23 pmSan Antonio
$227
Find similar
Frontier
Feb 23
SAT1:57 pmSan Antonio
10h 56m
1 stop
SJU2:53 amSan Juan Luis Munoz Marin Intl
Feb 25
SJU3:53 amSan Juan Luis Munoz Marin Intl
11h 19m
1 stop
SAT1:12 pmSan Antonio
$231
Find similar
Frontier
Feb 19
SAT1:57 pmSan Antonio
10h 56m
1 stop
SJU2:53 amSan Juan Luis Munoz Marin Intl
Feb 27
SJU3:53 amSan Juan Luis Munoz Marin Intl
11h 25m
1 stop
SAT1:18 pmSan Antonio
$232
Find similar

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

Our best American Airlines deals on San Antonio to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Jan 23
SAT5:10 pmSan Antonio
17h 17m
1 stop
SJU12:27 pmSan Juan Luis Munoz Marin Intl
Feb 4
SJU6:00 amSan Juan Luis Munoz Marin Intl
10h 16m
2 stops
SAT2:16 pmSan Antonio
$250
Find similar
American Airlines
Jan 23
SAT5:10 pmSan Antonio
15h 38m
1 stop
SJU10:48 amSan Juan Luis Munoz Marin Intl
Feb 4
SJU6:00 amSan Juan Luis Munoz Marin Intl
10h 16m
2 stops
SAT2:16 pmSan Antonio
$251
Find similar
American Airlines
Feb 21
SAT5:00 amSan Antonio
14h 34m
1 stop
SJU9:34 pmSan Juan Luis Munoz Marin Intl
Feb 28
SJU7:00 amSan Juan Luis Munoz Marin Intl
18h 59m
1 stop
SAT11:59 pmSan Antonio
$306
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio 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 January 1, 2026.
Use the filters below to find and compare flights from San Antonio to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 3/7

8:53 pm-9:57 am

1 stop11h 04m

San Juan Luis Munoz Marin Intl

Mon 3/16

3:08 am-1:23 pm

1 stop11h 15m

$227

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 2/23

1:57 pm-2:53 am

1 stop10h 56m

San Juan Luis Munoz Marin Intl

Wed 2/25

3:53 am-1:12 pm

1 stop11h 19m

$231

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Thu 2/19

1:57 pm-2:53 am

1 stop10h 56m

San Juan Luis Munoz Marin Intl

Fri 2/27

3:53 am-1:18 pm

1 stop11h 25m

$232

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 3/24

2:13 pm-1:58 am

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Mon 3/30

3:08 am-1:23 pm

1 stop11h 15m

$234

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 3/24

2:13 pm-10:45 pm

1 stop7h 32m

San Juan Luis Munoz Marin Intl

Mon 3/30

3:08 am-1:23 pm

1 stop11h 15m

$235

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 3/2

1:52 pm-2:53 am

1 stop11h 01m

San Juan Luis Munoz Marin Intl

Mon 3/16

6:30 am-1:55 pm

1 stop8h 25m

$242

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sun 2/1

11:43 am-9:26 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

Mon 2/2

2:05 am-3:31 pm

2 stops15h 26m

$245

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 2/24

1:34 pm-11:58 pm

1 stop8h 24m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:37 pm-12:35 am

1 stop7h 58m

$246

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 3/2

1:52 pm-2:53 am

1 stop11h 01m

San Juan Luis Munoz Marin Intl

Mon 3/16

6:30 am-1:55 pm

1 stop8h 25m

$249

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 1/23

5:10 pm-12:27 pm

1 stop17h 17m

San Juan Luis Munoz Marin Intl

Wed 2/4

6:00 am-2:16 pm

2 stops10h 16m

$250

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 San Antonio 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 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 September is also cheap. Prices for this month can be found on momondo for an average of $311.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from San Antonio is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $236. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $382.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $212. Flights in the morning are often more expensive with an average ticket price of $370.

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

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

How far in advance should I book a flight 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 San Antonio 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 $392 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 San Antonio for as low as $305 on momondo.

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

There are 2 cabin classes available to choose from on San Antonio to San Juan Luis Munoz Marin Intl 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 San Antonio to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a San Antonio to San Juan Luis Munoz Marin Intl Airport flight.

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

As of January 2026, prices for San Antonio to San Juan Luis Munoz Marin Intl Airport flights are approximately 19% cheaper when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio 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 San Antonio to San Juan Luis Munoz Marin Intl Airport (SAT to SJU) flight deals and tips

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

Best Price Found

$173

Fastest flight time

4h 41m

Direct flights

Thu
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from San Antonio in the past 72 hours is $173. The best round-trip flight deal from San Antonio to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $313.
The fastest flight from San Antonio to San Juan Luis Munoz Marin Intl Airport takes 4h 41m
Direct flights go from San Antonio to San Juan Luis Munoz Marin Intl Airport on Thursday. The only airline offering direct flights is Spirit Airlines.
Search flight deals

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

    San Juan Luis Munoz Marin Intl is 2177.2 mi away from San Antonio. In terms of flight time, this usually takes a little over 4h 41m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio 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 San Antonio to San Juan Luis Munoz Marin Intl Airport?

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

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

Compare and see reviews for airlines that fly from San Antonio to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.7
3,066 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $164Free CancellationRating
6.3
8,253 reviews
Search Spirit Airlines flights
DeltaPriceFrom $189Free CancellationRating
7.9
8,017 reviews
Search Delta flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,128 reviews
Search United Airlines flights
SouthwestPriceFrom $265Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
American AirlinesPriceFrom $291Free CancellationRating
7.2
11,071 reviews
Search American Airlines flights

  • Spirit Airlines Flights From San Antonio to San Juan Luis Munoz Marin Intl Airport

    Spirit Airlines is one of the most popular airlines flying from San Antonio to San Juan Luis Munoz Marin Intl Airport, operating 3 flights/week on average for this route. A good Spirit Airlines flight deal for San Antonio to San Juan Luis Munoz Marin Intl Airport starts from $164 round-trip, up to an average price of $293. Our users have rated Spirit Airlines at 6.3/10.

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
Humacao
Caguas
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to San Juan?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Antonio to San Juan for you.

Can I find flights from San Antonio to San Juan with flexible booking policies on momondo?

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

How can momondo help me find flights from San Antonio to San Juan?

Once all potential San Antonio to San Juan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Antonio to San Juan right now. Can momondo alert me if prices change?

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

An easier way to manage your San Juan Luis Munoz Marin Intl Airport 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
Sat 1/31
Sat 2/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Juan