What is the cheapest airline that flies from San Antonio to Puerto Rico?

Spirit Airlines, United Airlines, and Southwest are the most popular carriers operating from San Antonio to Puerto Rico

How often are flights from San Antonio to Puerto Rico delayed?

Historically, on average around 26% of flights between San Antonio and Puerto Rico have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

Which airline has the best punctuality record on San Antonio to Puerto Rico flights?

According to our data, Spirit Airlines have had the least number of delays on this route over the last 12 months; with about 26% of their flights experiencing any sort of delay.

What airlines fly to Puerto Rico?

American Airlines, Spirit Airlines and Southwest are the top three most popular airlines that fly to Puerto Rico from San Antonio according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 7 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

How many flights depart from San Antonio to Puerto Rico on average per week?

The number of flights available between San Antonio and Puerto Rico is 2 per week as of December 2025. The most frequent departure day is Mon, with 50% of weekly flights leaving on this day.

What is the most punctual flight time for San Antonio to Puerto Rico flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

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?

As of December 2025, there are 6 operators available to choose from 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.

$100 Cheap Flights from San Antonio to Puerto Rico in 2025/26

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10:27 am - 5:09 pmSAT-SJU

4h 42mnonstop

6:30 am - 9:37 amSJU-SAT

5h 07mnonstop

$184Spirit Airlines

Find Deal

Mon, Dec 15 - Fri, Dec 19

10:27 am - 5:09 pmSAT-SJU

4h 42mnonstop

6:30 am - 9:37 amSJU-SAT

5h 07mnonstop

$187Spirit Airlines

Find Deal

Wed, Dec 17 - Fri, Dec 26

10:27 am - 5:09 pmSAT-SJU

4h 42mnonstop

6:28 pm - 11:26 pmSJU-SAT

6h 58m1 stop

$198Spirit Airlines

Find Deal

Wed, Dec 17 - Fri, Dec 26

3:02 pm - 2:50 amSAT-SJU

9h 48m1 stop

7:00 am - 2:07 pmSJU-SAT

9h 07m1 stop

$201Frontier

Find Deal

Sat, Feb 21 - Sat, Feb 28

10:27 am - 5:09 pmSAT-SJU

4h 42mnonstop

6:30 am - 9:37 amSJU-SAT

5h 07mnonstop

$205Spirit Airlines

Find Deal

Wed, Dec 17 - Fri, Dec 26

6:00 am - 11:09 pmSAT-SJU

15h 09m1 stop

9:37 pm - 4:43 pmSJU-SAT

21h 06m1 stop

$210Multiple Airlines

Find Deal

Tue, Feb 24 - Thu, Mar 5

10:27 am - 5:09 pmSAT-SJU

4h 42mnonstop

3:55 am - 6:42 pmSJU-SAT

16h 47m1 stop

$212Multiple Airlines

Find Deal

Mon, Dec 15 - Thu, Dec 18

3:02 pm - 2:50 amSAT-SJU

9h 48m1 stop

3:55 am - 2:07 pmSJU-SAT

12h 12m1 stop

$215Frontier

Find Deal

Mon, Feb 23 - Thu, Feb 26

7:00 am - 11:57 pmSAT-BQN

14h 57m2 stops

1:09 am - 1:19 pmBQN-SAT

14h 10m2 stops

$245United Airlines

Find Deal

Sun, Jan 25 - Tue, Jan 27

7:00 am - 11:57 pmSAT-BQN

14h 57m2 stops

1:09 am - 1:08 pmBQN-SAT

13h 59m2 stops

$335United Airlines

Find Deal

Sun, Jan 25 - Wed, Jan 28

Spirit Airlines flights from San Antonio to Puerto Rico

Our best Spirit Airlines deals on San Antonio to Puerto Rico flight tickets

Spirit Airlines

Dec 15

SAT10:27 amSan Antonio

4h 42m

SJU5:09 pmSan Juan Luis Munoz Marin Intl

Dec 19

SJU6:30 amSan Juan Luis Munoz Marin Intl

5h 07m

SAT9:37 amSan Antonio

$184

Find similar

Spirit Airlines

Dec 17

SAT10:27 amSan Antonio

4h 42m

SJU5:09 pmSan Juan Luis Munoz Marin Intl

Dec 26

SJU6:30 amSan Juan Luis Munoz Marin Intl

5h 07m

SAT9:37 amSan Antonio

$187

Find similar

Spirit Airlines

Dec 8

SAT10:27 amSan Antonio

4h 42m

SJU5:09 pmSan Juan Luis Munoz Marin Intl

Dec 15

SJU6:14 pmSan Juan Luis Munoz Marin Intl

7h 12m

1 stop

SAT11:26 pmSan Antonio

$196

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Frontier flights from San Antonio to Puerto Rico

Our best Frontier deals on San Antonio to Puerto Rico flight tickets

Frontier

Feb 21

SAT3:02 pmSan Antonio

9h 48m

1 stop

SJU2:50 amSan Juan Luis Munoz Marin Intl

Feb 28

SJU7:00 amSan Juan Luis Munoz Marin Intl

9h 07m

1 stop

SAT2:07 pmSan Antonio

$201

Find similar

Frontier

Feb 23

SAT3:02 pmSan Antonio

9h 48m

1 stop

SJU2:50 amSan Juan Luis Munoz Marin Intl

Feb 26

SJU3:55 amSan Juan Luis Munoz Marin Intl

12h 12m

1 stop

SAT2:07 pmSan Antonio

$215

Find similar

Frontier

Feb 22

SAT3:02 pmSan Antonio

9h 48m

1 stop

SJU2:50 amSan Juan Luis Munoz Marin Intl

Mar 1

SJU3:55 amSan Juan Luis Munoz Marin Intl

12h 12m

1 stop

SAT2:07 pmSan Antonio

$236

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 12/15

10:27 am-5:09 pm

Nonstop4h 42m

San Juan Luis Munoz Marin Intl

Fri 12/19

6:30 am-9:37 am

Nonstop5h 07m

$184

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 12/17

10:27 am-5:09 pm

Nonstop4h 42m

San Juan Luis Munoz Marin Intl

Fri 12/26

6:30 am-9:37 am

Nonstop5h 07m

$187

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 12/17

10:27 am-5:09 pm

Nonstop4h 42m

San Juan Luis Munoz Marin Intl

Fri 12/26

6:28 pm-11:26 pm

1 stop6h 58m

$198

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 2/21

3:02 pm-2:50 am

1 stop9h 48m

San Juan Luis Munoz Marin Intl

Sat 2/28

7:00 am-2:07 pm

1 stop9h 07m

$201

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 12/17

10:27 am-5:09 pm

Nonstop4h 42m

San Juan Luis Munoz Marin Intl

Fri 12/26

6:30 am-9:37 am

Nonstop5h 07m

$205

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 2/24

6:00 am-11:09 pm

1 stop15h 09m

San Juan Luis Munoz Marin Intl

Thu 3/5

9:37 pm-4:43 pm

1 stop21h 06m

$210

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 12/15

10:27 am-5:09 pm

Nonstop4h 42m

San Juan Luis Munoz Marin Intl

Thu 12/18

3:55 am-6:42 pm

1 stop16h 47m

$212

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 2/23

3:02 pm-2:50 am

1 stop9h 48m

San Juan Luis Munoz Marin Intl

Thu 2/26

3:55 am-2:07 pm

1 stop12h 12m

$215

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Sun 1/25

7:00 am-11:57 pm

2 stops14h 57m

Aguadilla Borinquen

Tue 1/27

1:09 am-1:19 pm

2 stops14h 10m

$245

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Sun 1/25

7:00 am-11:57 pm

2 stops14h 57m

Aguadilla Borinquen

Wed 1/28

1:09 am-1:08 pm

2 stops13h 59m

$335

Flights are sorted by cheapest round-trip flights first.

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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

Prices

Airlines

Delays

Other information

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 $317.

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 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 $394 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?

No. A direct flight is the cheapest option for a flight between San Antonio to Puerto Rico.

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	$92
Fastest flight time	4h 41m
Direct flights	Tue, Thu and Sat
Airports in Puerto Rico	1 airport

The best one-way flight to Puerto Rico from San Antonio in the past 72 hours is $92. The best round-trip flight deal from San Antonio to Puerto Rico found on momondo in the last 72 hours is $217.

The fastest flight from San Antonio to Puerto Rico takes 4h 41m

Direct flights go from San Antonio to Puerto Rico on Tuesday, Thursday and Saturday. 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?
As of December 2025, there are 6 operators available to choose from 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?
Based on momondo bookings for flights between San Antonio and Puerto Rico, the leading plane model is Airbus A318/A319/A320/A321, making up 48.19% of the total bookings. Other popular models include Airbus A320-100/200 with 23.32%, Airbus A321neo with 21.76%, and Airbus A320neo with 4.66%.

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
Frontier	PriceFrom $133	Free Cancellation	Rating 5.8 3,094 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $164	Free Cancellation	Rating 6.3 8,156 reviews	Search Spirit Airlines flights
Delta	PriceFrom $225	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights
United Airlines	PriceFrom $245	Free Cancellation	Rating 7.4 9,064 reviews	Search United Airlines flights
Southwest	PriceFrom $266	Free Cancellation	Rating 8.0 4,253 reviews	Search Southwest flights
American Airlines	PriceFrom $304	Free Cancellation	Rating 7.2 11,041 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

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.

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Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Flights to San Juanfrom $104

Flights to Aguadillafrom $166

Flights to Mayagüezfrom $322

Cheap flights from San Antonio to Puerto Rico from $100

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 12/17. 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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Spirit Airlines flights from San Antonio to Puerto Rico

Our best Spirit Airlines deals on San Antonio to Puerto Rico flight tickets

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Our best Frontier deals on San Antonio to Puerto Rico flight tickets

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Use the filters below to find and compare flights from San Antonio to Puerto Rico that are best for you.

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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 $317.

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

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 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?

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?

No. A direct flight is the cheapest option for a flight between San Antonio to Puerto Rico.

What is the cheapest airline that flies from San Antonio to Puerto Rico?

Spirit Airlines, United Airlines, and Southwest are the most popular carriers operating from San Antonio to Puerto Rico

What airlines fly to Puerto Rico?

How often are flights from San Antonio to Puerto Rico delayed?

Historically, on average around 26% of flights between San Antonio and Puerto Rico have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

What is the most punctual flight time for San Antonio to Puerto Rico flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Antonio to Puerto Rico flights?

According to our data, Spirit Airlines have had the least number of delays on this route over the last 12 months; with about 26% of their flights experiencing any sort of delay.

How many flights depart from San Antonio to Puerto Rico on average per week?

The number of flights available between San Antonio and Puerto Rico is 2 per week as of December 2025. The most frequent departure day is Mon, with 50% of weekly flights leaving on this day.

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

Fastest flight time

Direct flights

Airports in Puerto Rico

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

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?

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

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

Why use momondo?

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

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

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

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

An easier way to manage your Puerto Rico 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

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