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Cheap flights from San Antonio to Puerto Rico from $90

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 Puerto Rico departing on 10/27. 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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Cheap round-trip flights

Spirit Airlines Logo
6:20 am - 1:00 pmSAT-SJU
4h 40mnonstop
Spirit Airlines Logo
1:55 pm - 4:43 pmSJU-SAT
4h 48mnonstop
$180Spirit Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
Spirit Airlines Logo
4:09 pm - 9:35 pmSAT-SJU
4h 26mnonstop
Spirit Airlines Logo
10:42 am - 3:14 pmSJU-SAT
5h 32mnonstop
$181Spirit Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 3
Spirit Airlines Logo
1:01 pm - 6:48 pmSAT-SJU
4h 47mnonstop
Spirit Airlines Logo
8:00 am - 12:06 pmSJU-SAT
5h 06mnonstop
$182Spirit Airlines
Find Deal
Fri, Oct 10 - Fri, Oct 17
Spirit Airlines Logo
7:17 pm - 11:04 amSAT-SJU
14h 47m1 stop
Spirit Airlines Logo
8:00 am - 12:06 pmSJU-SAT
5h 06mnonstop
$183Spirit Airlines
Find Deal
Thu, Oct 2 - Fri, Oct 10
Multiple Airlines Logo
7:10 pm - 2:30 amSAT-SJU
6h 20m1 stop
Multiple Airlines Logo
8:00 am - 12:06 pmSJU-SAT
5h 06mnonstop
$234Multiple Airlines
Find Deal
Fri, Oct 10 - Fri, Oct 17
Multiple Airlines Logo
1:01 pm - 6:48 pmSAT-SJU
4h 47mnonstop
Multiple Airlines Logo
3:40 am - 6:15 pmSJU-SAT
15h 35m1 stop
$244Multiple Airlines
Find Deal
Mon, Oct 13 - Thu, Oct 16
Delta Logo
10:54 am - 9:59 pmSAT-SJU
10h 05m1 stop
Delta Logo
5:43 pm - 12:20 amSJU-SAT
7h 37m1 stop
$245Delta
Find Deal
Tue, Oct 21 - Wed, Oct 29
American Airlines Logo
8:10 am - 11:54 pmSAT-SJU
14h 44m1 stop
American Airlines Logo
7:10 am - 9:34 pmSJU-SAT
15h 24m1 stop
$251American Airlines
Find Deal
Sun, Oct 19 - Sat, Oct 25
United Airlines Logo
12:50 pm - 11:09 pmSAT-BQN
9h 19m1 stop
United Airlines Logo
12:15 am - 1:15 pmBQN-SAT
14h 00m2 stops
$290United Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
United Airlines Logo
9:47 am - 11:09 pmSAT-BQN
12h 22m2 stops
United Airlines Logo
12:15 am - 3:25 pmBQN-SAT
16h 10m2 stops
$416United Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7

Spirit Airlines flights from San Antonio to Puerto Rico

Our best Spirit Airlines deals on San Antonio to Puerto Rico flight tickets
Spirit Airlines
Feb 21
SAT6:20 amSan Antonio
4h 40m
SJU1:00 pmSan Juan Luis Munoz Marin Intl
Feb 25
SJU1:55 pmSan Juan Luis Munoz Marin Intl
4h 48m
SAT4:43 pmSan Antonio
$180
Find similar
Spirit Airlines
Sep 29
SAT4:09 pmSan Antonio
4h 26m
SJU9:35 pmSan Juan Luis Munoz Marin Intl
Oct 3
SJU10:42 amSan Juan Luis Munoz Marin Intl
5h 32m
SAT3:14 pmSan Antonio
$181
Find similar
Spirit Airlines
Oct 10
SAT1:01 pmSan Antonio
4h 47m
SJU6:48 pmSan Juan Luis Munoz Marin Intl
Oct 17
SJU8:00 amSan Juan Luis Munoz Marin Intl
5h 06m
SAT12:06 pmSan Antonio
$182
Find similar

Frontier flights from San Antonio to Puerto Rico

Our best Frontier deals on San Antonio to Puerto Rico flight tickets
Frontier
Sep 29
SAT5:40 pmSan Antonio
15h 16m
2 stops
SJU9:56 amSan Juan Luis Munoz Marin Intl
Oct 1
SJU12:28 amSan Juan Luis Munoz Marin Intl
19h 47m
2 stops
SAT7:15 pmSan Antonio
$298
Find similar
Frontier
Sep 29
SAT5:40 pmSan Antonio
17h 21m
2 stops
SJU12:01 pmSan Juan Luis Munoz Marin Intl
Oct 2
SJU9:26 pmSan Juan Luis Munoz Marin Intl
20h 09m
2 stops
SAT4:35 pmSan Antonio
$346
Find similar
Frontier
Sep 29
SAT5:40 pmSan Antonio
15h 16m
2 stops
SJU9:56 amSan Juan Luis Munoz Marin Intl
Oct 2
SJU12:28 amSan Juan Luis Munoz Marin Intl
19h 02m
2 stops
SAT6:30 pmSan Antonio
$351
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Puerto Rico 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 September 17, 2025.
Use the filters below to find and compare flights from San Antonio to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 2/21

6:20 am-1:00 pm

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Wed 2/25

1:55 pm-4:43 pm

Nonstop4h 48m

$180

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 9/29

4:09 pm-9:35 pm

Nonstop4h 26m

San Juan Luis Munoz Marin Intl

Fri 10/3

10:42 am-3:14 pm

Nonstop5h 32m

$181

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 10/10

1:01 pm-6:48 pm

Nonstop4h 47m

San Juan Luis Munoz Marin Intl

Fri 10/17

8:00 am-12:06 pm

Nonstop5h 06m

$182

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Thu 10/2

7:17 pm-11:04 am

1 stop14h 47m

San Juan Luis Munoz Marin Intl

Fri 10/10

8:00 am-12:06 pm

Nonstop5h 06m

$183

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 10/10

7:10 pm-2:30 am

1 stop6h 20m

San Juan Luis Munoz Marin Intl

Fri 10/17

8:00 am-12:06 pm

Nonstop5h 06m

$234

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 10/13

1:01 pm-6:48 pm

Nonstop4h 47m

San Juan Luis Munoz Marin Intl

Thu 10/16

3:40 am-6:15 pm

1 stop15h 35m

$244

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 10/21

10:54 am-9:59 pm

1 stop10h 05m

San Juan Luis Munoz Marin Intl

Wed 10/29

5:43 pm-12:20 am

1 stop7h 37m

$245

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sun 10/19

8:10 am-11:54 pm

1 stop14h 44m

San Juan Luis Munoz Marin Intl

Sat 10/25

7:10 am-9:34 pm

1 stop15h 24m

$251

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Fri 10/3

12:50 pm-11:09 pm

1 stop9h 19m

Aguadilla Borinquen

Tue 10/7

12:15 am-1:15 pm

2 stops14h 00m

$290

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Fri 10/3

9:47 am-11:09 pm

2 stops12h 22m

Aguadilla Borinquen

Tue 10/7

12:15 am-3:25 pm

2 stops16h 10m

$416

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 Puerto Rico from

How to get the cheapest flight ticket from San Antonio to Puerto Rico

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 Puerto Rico?

If you don’t want to visit Puerto Rico in September, then you should wait until April to fly from San Antonio, when ticket prices are also cheap, with an average price of $344.

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico 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. The most expensive day to fly to Puerto Rico is Saturday, with ticket prices averaging around $304.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from San Antonio to Puerto Rico during this time can be as low as $190. In contrast, the most expensive time of day to depart to Puerto Rico is in the evening when prices are around $438.

What is the cheapest San Antonio to Puerto Rico flight route?

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

How far in advance should I book a flight to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $410 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from San Antonio for as low as $337 on momondo.

What cabin class options are available on San Antonio to Puerto Rico flights?

There are 2 cabin classes available to choose from on San Antonio to Puerto Rico 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 Puerto Rico flights?

You could potentially save up to 3% on your flight if you consider stops on a San Antonio to Puerto Rico flight.

Cheap San Antonio to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Puerto Rico

Best Price Found

$163

Fastest flight time

4h 26m

Direct flights

Tue, Thu, Sat and Sun

Airports in Puerto Rico

1 airport
The best one-way flight to Puerto Rico from San Antonio in the past 72 hours is $163. The best round-trip flight deal from San Antonio to Puerto Rico found on momondo in the last 72 hours is $166.
The fastest flight from San Antonio to Puerto Rico takes 4h 26m
Direct flights go from San Antonio to Puerto Rico on Tuesday, Thursday, Saturday and Sunday. The only airline offering direct flights is Spirit Airlines.
There is 1 airport near Puerto Rico: San Juan Luis Munoz Marin Intl (SJU)
Search flight deals

  • When did momondo last update prices for flights from San Antonio Airport to Puerto Rico?

    Prices for flights from San Antonio Airport to Puerto Rico refresh daily.

  • How many operators does momondo search for flights from San Antonio Airport to Puerto Rico?

  • How old do you have to be to fly from San Antonio Airport to Puerto Rico?

    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 San Antonio Airport to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The travel and health documents you'll need for your trip to Puerto Rico may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Puerto Rico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Antonio to Puerto Rico?

Best airlines flying from San Antonio to Puerto Rico

Compare and see reviews for airlines that fly from San Antonio to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $156Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
7,961 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $271Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $319Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

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 Puerto Rico for you.

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

momondo does allow users to show only those flights to Puerto Rico from San Antonio which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between San Antonio and Puerto Rico by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Puerto Rico from San Antonio are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Puerto Rico trip

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Find better results for your trip to Puerto Rico

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