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Cheap flights from San Antonio to Puerto Rico from $87

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 2/21. 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

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Find the cheapest flights from San Antonio to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:57 pm - 2:57 am
SAT
-
BQN
11h 00m
1 stop
Frontier Logo
3:58 am - 1:12 pm
BQN
-
SAT
11h 14m
1 stop
$224Frontier
Mon, Feb 23 - Wed, Feb 25
Multiple Airlines Logo
6:00 am - 11:09 pm
SAT
-
SJU
15h 09m
1 stop
Multiple Airlines Logo
3:53 am - 1:12 pm
SJU
-
SAT
11h 19m
1 stop
$256Multiple Airlines
Mon, Feb 16 - Thu, Feb 26
Multiple Airlines Logo
6:30 am - 11:33 pm
SAT
-
SJU
15h 03m
1 stop
Multiple Airlines Logo
11:52 am - 1:12 pm
SJU
-
SAT
27h 20m
1 stop
$257Multiple Airlines
Mon, Feb 9 - Fri, Feb 13
Multiple Airlines Logo
6:00 am - 11:09 pm
SAT
-
SJU
15h 09m
1 stop
Multiple Airlines Logo
6:30 am - 1:23 pm
SJU
-
SAT
8h 53m
1 stop
$259Multiple Airlines
Tue, Mar 3 - Fri, Mar 6
Multiple Airlines Logo
7:56 pm - 1:27 pm
SAT
-
SJU
15h 31m
2 stops
Multiple Airlines Logo
5:20 am - 1:12 pm
SJU
-
SAT
9h 52m
1 stop
$260Multiple Airlines
Sat, Feb 14 - Thu, Feb 19
Frontier Logo
5:08 pm - 5:58 pm
SAT
-
SJU
22h 50m
2 stops
Frontier Logo
5:25 pm - 1:23 pm
SJU
-
SAT
21h 58m
1 stop
$261Frontier
Mon, Mar 2 - Thu, Mar 5
United Airlines Logo
7:00 am - 11:57 pm
SAT
-
BQN
14h 57m
2 stops
United Airlines Logo
1:09 am - 12:22 pm
BQN
-
SAT
13h 13m
2 stops
$266United Airlines
Mon, Feb 23 - Wed, Feb 25
Delta Logo
8:00 am - 9:12 pm
SAT
-
SJU
11h 12m
1 stop
Delta Logo
6:37 pm - 12:35 am
SJU
-
SAT
7h 58m
1 stop
$266Delta
Tue, Feb 24 - Wed, Mar 4
American Airlines Logo
5:16 am - 2:52 pm
SAT
-
SJU
8h 36m
1 stop
American Airlines Logo
7:25 am - 8:47 pm
SJU
-
SAT
14h 22m
1 stop
$267American Airlines
Wed, Apr 8 - Wed, Apr 15
United Airlines Logo
7:00 am - 11:57 pm
SAT
-
BQN
14h 57m
2 stops
United Airlines Logo
1:09 am - 12:22 pm
BQN
-
SAT
13h 13m
2 stops
$311United Airlines
Mon, Feb 23 - Wed, Feb 25

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 3
SAT6:30 amSan Antonio
15h 03m
1 stop
SJU11:33 pmSan Juan Luis Munoz Marin Intl
Feb 7
SJU6:00 amSan Juan Luis Munoz Marin Intl
19h 52m
1 stop
SAT11:52 pmSan Antonio
$273
Spirit Airlines
Mar 18
SAT1:44 pmSan Antonio
7h 19m
1 stop
SJU10:03 pmSan Juan Luis Munoz Marin Intl
Mar 25
SJU7:00 amSan Juan Luis Munoz Marin Intl
6h 49m
1 stop
SAT12:49 pmSan Antonio
$275
Spirit Airlines
Feb 12
SAT6:00 amSan Antonio
15h 09m
1 stop
SJU11:09 pmSan Juan Luis Munoz Marin Intl
Feb 19
SJU11:52 amSan Juan Luis Munoz Marin Intl
14h 07m
1 stop
SAT11:59 pmSan Antonio
$278

United Airlines flights from San Antonio to Puerto Rico

Our best United Airlines deals on San Antonio to Puerto Rico flight tickets
United Airlines
Feb 23
SAT7:00 amSan Antonio
14h 57m
2 stops
BQN11:57 pmAguadilla Borinquen
Feb 25
BQN1:09 amAguadilla Borinquen
13h 13m
2 stops
SAT12:22 pmSan Antonio
$266
United Airlines
May 30
SAT7:00 pmSan Antonio
9h 30m
1 stop
SJU5:30 amSan Juan Luis Munoz Marin Intl
Jun 3
SJU1:05 amSan Juan Luis Munoz Marin Intl
10h 43m
2 stops
SAT10:48 amSan Antonio
$284
United Airlines
May 1
SAT11:46 amSan Antonio
7h 52m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
May 8
SJU1:00 amSan Juan Luis Munoz Marin Intl
10h 32m
1 stop
SAT10:32 amSan Antonio
$295

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 January 15, 2026.
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 AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Mon 2/23

1:57 pm-2:57 am

1 stop11h 00m

Aguadilla Borinquen

Wed 2/25

3:58 am-1:12 pm

1 stop11h 14m

$224

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 2/16

6:00 am-11:09 pm

1 stop15h 09m

San Juan Luis Munoz Marin Intl

Thu 2/26

3:53 am-1:12 pm

1 stop11h 19m

$256

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 2/9

6:30 am-11:33 pm

1 stop15h 03m

San Juan Luis Munoz Marin Intl

Fri 2/13

11:52 am-1:12 pm

1 stop27h 20m

$257

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 3/3

6:00 am-11:09 pm

1 stop15h 09m

San Juan Luis Munoz Marin Intl

Fri 3/6

6:30 am-1:23 pm

1 stop8h 53m

$259

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 2/14

7:56 pm-1:27 pm

2 stops15h 31m

San Juan Luis Munoz Marin Intl

Thu 2/19

5:20 am-1:12 pm

1 stop9h 52m

$260

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 3/2

5:08 pm-5:58 pm

2 stops22h 50m

San Juan Luis Munoz Marin Intl

Thu 3/5

5:25 pm-1:23 pm

1 stop21h 58m

$261

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Mon 2/23

7:00 am-11:57 pm

2 stops14h 57m

Aguadilla Borinquen

Wed 2/25

1:09 am-12:22 pm

2 stops13h 13m

$266

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 2/24

8:00 am-9:12 pm

1 stop11h 12m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:37 pm-12:35 am

1 stop7h 58m

$266

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 4/8

5:16 am-2:52 pm

1 stop8h 36m

San Juan Luis Munoz Marin Intl

Wed 4/15

7:25 am-8:47 pm

1 stop14h 22m

$267

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Mon 2/23

7:00 am-11:57 pm

2 stops14h 57m

Aguadilla Borinquen

Wed 2/25

1:09 am-12:22 pm

2 stops13h 13m

$311

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 October, then you should wait until September to fly from San Antonio, when ticket prices are also cheap, with an average price of $311.

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 $382.

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 $212. In contrast, the most expensive time of day to depart to Puerto Rico is in the morning when prices are around $372.

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 $384 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 $306 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.

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

$176

Fastest flight time

7h 14m

Direct flights

None
The best one-way flight to Puerto Rico from San Antonio in the past 72 hours is $176. The best round-trip flight deal from San Antonio to Puerto Rico found on momondo in the last 72 hours is $341.
The fastest flight from San Antonio to Puerto Rico takes 7h 14m
There are no direct flights from San Antonio to Puerto Rico. There are no popular flight routes from San Antonio to Puerto Rico.
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
5.7
3,057 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $132Free CancellationRating
6.3
8,319 reviews
Search Spirit Airlines flights
DeltaPriceFrom $163Free CancellationRating
7.9
8,049 reviews
Search Delta flights
United AirlinesPriceFrom $219Free CancellationRating
7.4
9,163 reviews
Search United Airlines flights
American AirlinesPriceFrom $262Free CancellationRating
7.2
11,131 reviews
Search American Airlines flights
SouthwestPriceFrom $265Free CancellationRating
8.0
4,258 reviews
Search Southwest 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.

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Find better results for your trip to Puerto Rico

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Popular flights according to clicks in the last 7 days on momondo
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