HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$178+ Cheap flights from Santiago de los Caballeros (STI) to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
STI — SJU
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Santiago de los Caballeros to Puerto Rico with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Santiago de los Caballeros to Puerto Rico

Cheapest flights from Santiago de los Caballeros to Puerto Rico
Explore the most affordable flight options available from Santiago de los Caballeros to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 18, 2026.

This JetBlue deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:22 pm
STI
-
SJU
Nonstop1h 11m
JetBlue
Sun 5/31:57 pm
SJU
-
STI
Nonstop1h 15m
JetBlue
Deal found 4/14$311
This JetBlue deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:22 pm
STI
-
SJU
Nonstop1h 11m
JetBlue
Thu 5/141:57 pm
SJU
-
STI
Nonstop1h 15m
JetBlue
Deal found 4/17$313
This Super.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:54 pm
STI
-
SJU
Nonstop1h 10m
JetBlue
Mon 8/174:25 pm
SJU
-
STI
Nonstop1h 15m
JetBlue
Deal found 4/16$329
This JetBlue deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:06 pm
STI
-
SJU
Nonstop1h 10m
JetBlue
Mon 8/174:25 pm
SJU
-
STI
Nonstop1h 15m
JetBlue
Deal found 4/18$349
This CheapOair deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/304:54 pm
STI
-
SJU
Nonstop1h 10m
JetBlue
Tue 8/44:25 pm
SJU
-
STI
Nonstop1h 15m
JetBlue
Deal found 4/16$350
This Super.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:17 pm
STI
-
SJU
Nonstop1h 07m
JetBlue
Thu 5/283:54 pm
SJU
-
STI
Nonstop1h 13m
JetBlue
Deal found 4/14$352
This JetBlue deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:22 pm
STI
-
SJU
Nonstop1h 11m
JetBlue
Mon 5/1110:00 pm
SJU
-
STI
1 stop9h 47m
JetBlue
Deal found 4/16$356
This JetBlue deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:22 pm
STI
-
SJU
Nonstop1h 11m
JetBlue
Thu 5/710:00 pm
SJU
-
STI
1 stop9h 47m
JetBlue
Deal found 4/16$357
This JetBlue deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:31 am
STI
-
SJU
1 stop10h 45m
JetBlue
Tue 6/93:54 pm
SJU
-
STI
Nonstop1h 13m
JetBlue
Deal found 4/13$358
This FlightHub deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:22 pm
STI
-
SJU
Nonstop1h 11m
JetBlue
Mon 5/1110:00 pm
SJU
-
STI
1 stop9h 47m
JetBlue
Deal found 4/14$360
This Super.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:18 pm
STI
-
SJU
Nonstop1h 10m
JetBlue
Mon 7/204:25 pm
SJU
-
STI
Nonstop1h 15m
JetBlue
Deal found 4/18$361
This JetBlue deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:31 am
STI
-
SJU
1 stop10h 45m
JetBlue
Mon 5/181:57 pm
SJU
-
STI
Nonstop1h 15m
JetBlue
Deal found 4/16$362

Find flight deals from Santiago de los Caballeros to Puerto Rico

Keep the following information in mind while searching for Santiago de los Caballeros to Puerto Rico flight deals. Data was last updated April 18, 2026.

Round-trip from

$311
(JetBlue)

One-way from

$175
(Super.com)

Popular in

December

Cheapest in

September

Average price

$252

Good round-trip deal

$280 or less

Good one-way deal

$202 or less
From Santiago de los Caballeros to Puerto Rico
Search Deals
One-way flight from Santiago de los Caballeros to Puerto Rico
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Santiago de los Caballeros to Puerto Rico.
Search Deals
Price to beat on a one-way flight from Santiago de los Caballeros to Puerto Rico.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santiago de los Caballeros 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, Cheapflights users made 2,558,603 searches. Data last updated April 18, 2026.
Use the filters below to find and compare flights from Santiago de los Caballeros to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Thu 4/30

4:22 pm-5:33 pm

Nonstop1h 11m

San Juan Luis Munoz Marin Intl

Mon 5/4

1:57 pm-3:12 pm

Nonstop1h 15m

$311

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Thu 4/30

4:22 pm-5:33 pm

Nonstop1h 11m

San Juan Luis Munoz Marin Intl

Sun 5/3

1:57 pm-3:12 pm

Nonstop1h 15m

$311

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Fri 5/8

4:22 pm-5:33 pm

Nonstop1h 11m

San Juan Luis Munoz Marin Intl

Mon 5/11

1:57 pm-3:12 pm

Nonstop1h 15m

$311

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Fri 5/15

7:31 am-6:16 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Mon 5/18

1:57 pm-3:12 pm

Nonstop1h 15m

$362
Quickest round-trip

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Wed 6/3

6:17 pm-7:24 pm

Nonstop1h 07m

San Juan Luis Munoz Marin Intl

Sun 6/7

3:54 pm-5:07 pm

Nonstop1h 13m

$366

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Thu 7/30

4:54 pm-6:04 pm

Nonstop1h 10m

San Juan Luis Munoz Marin Intl

Tue 8/4

4:25 pm-5:40 pm

Nonstop1h 15m

$384

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Thu 8/20

4:54 pm-6:04 pm

Nonstop1h 10m

San Juan Luis Munoz Marin Intl

Sun 8/23

10:40 pm-7:47 am

1 stop9h 07m

$473

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Fri 8/14

4:54 pm-6:04 pm

Nonstop1h 10m

San Juan Luis Munoz Marin Intl

Mon 8/17

10:40 pm-7:47 am

1 stop9h 07m

$473
Cheapest one-way

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Sun 5/17

4:22 pm-5:33 pm

Nonstop1h 11m

$178

Santiago de los CaballerosSan Juan

STI - SJU

STISJU

Santiago de los Caballeros

Thu 4/30

4:22 pm-5:33 pm

Nonstop1h 11m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Santiago de los Caballeros to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Santiago de los Caballeros with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Santiago de los Caballeros to Puerto Rico

What is the cheapest month to book a flight from Santiago de los Caballeros to Puerto Rico?

Currently, April is the cheapest month in which you can book a flight from Santiago de los Caballeros to Puerto Rico (average of $58). Flying from Santiago de los Caballeros to Puerto Rico in January is currently the most expensive (average of $203). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STI to PR?

Find hourly flight availability from Santiago de los Caballeros to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 18, 2026.

It’s typically best to fly out from Santiago de los Caballeros to Puerto Rico at noon. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Santiago de los Caballeros to Puerto Rico?

Use this chart to determine the cheapest time to fly round-trip from Santiago de los Caballeros to Puerto Rico. Price data was last updated on August 24, 2025.

Travelers seeking maximum savings on their Santiago de los Caballeros to Puerto Rico flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Santiago de los Caballeros to Puerto Rico

Explore weekly flight availability from Santiago de los Caballeros to Puerto Rico. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 18, 2026.

The most flights from STI to PR0 are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated April 18, 2026.
Peruse reviews from past customers who have flown with JetBlue and Frontier from Santiago de los Caballeros to Puerto Rico to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.2
Good
2,945 reviews

Boarding

7.3

Entertainment

7.2

Food

6.6

Overall

7.2

Comfort

7.5

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Mitchell,Feb 2026

CUN - BOS

When I pay to sit closer to the front, I still end up in boarding group e, which is super annoying
JetBlue
7.2
Good
2,945 reviews
JetBlue
7.2
Good
2,945 reviews

Boarding

7.3

Entertainment

7.2

Food

6.6

Overall

7.2

Comfort

7.5

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Mitchell,Feb 2026

CUN - BOS

When I pay to sit closer to the front, I still end up in boarding group e, which is super annoying
Frontier
5.7
Fair
2,986 reviews
JetBlue
7.2
Good
2,945 reviews

Boarding

7.3

Entertainment

7.2

Food

6.6

Overall

7.2

Comfort

7.5

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Mitchell,Feb 2026

CUN - BOS

When I pay to sit closer to the front, I still end up in boarding group e, which is super annoying

Related info for your journey

Find useful and relevant information for your journey from Santiago de los Caballeros to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Santiago de los Caballeros to Puerto Rico?

    Santiago de los Caballeros (STI), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Santiago de los Caballeros to Puerto Rico.

  • How long is the flight from Santiago de los Caballeros to Puerto Rico?

    A quick flight from Santiago de los Caballeros to Puerto Rico can take about 1h 11m. JetBlue provides one of the quickest options available for as low as $311. Santiago de los Caballeros and Puerto Rico are separated by a distance of 308 mi. Generally, flights for this route are nonstop.

  • What are the cheapest flights from Santiago de los Caballeros to Puerto Rico?

    On average you can expect to pay $291 for a flight from Santiago de los Caballeros to Puerto Rico. The cheapest flight overall is $168 while the most popular route, (Santiago de los Caballeros - San Juan Luis Munoz Marin Intl) is currently priced at $199.

  • Can I find deals for flights from Santiago de los Caballeros to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Santiago de los Caballeros to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santiago de los Caballeros to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santiago de los Caballeros to Puerto Rico.

  • Can I find deals for business class flights from Santiago de los Caballeros to Puerto Rico?

    Yes. Cheapflights offers flight deals from Santiago de los Caballeros to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Santiago de los Caballeros to Puerto Rico?

    Currently, April is the cheapest month in which you can book a flight from Santiago de los Caballeros to Puerto Rico (average of $58). Flying from Santiago de los Caballeros to Puerto Rico in January is currently the most expensive (average of $203). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Santiago de los Caballeros to Puerto Rico

Discover the top 2 airlines that operate flights from Santiago de los Caballeros to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$101Average$181FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$189Average$241FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights