HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$103+ Cheap flights from Buffalo (BUF) 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo 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 Buffalo to Puerto Rico

Keep the following information in mind while searching for Buffalo to Puerto Rico flight deals. Data was last updated August 16, 2025.

Round-trip from

$215
(American Airlines)

One-way from

$103
(Delta)

Popular in

December

Cheapest in

September

Average price

$413
From Buffalo to Puerto Rico
Search Deals
One-way flight from Buffalo to Puerto Rico
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Buffalo to Puerto Rico

Cheapest flights from Buffalo to Puerto Rico
Explore the most affordable flight options available from Buffalo to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:40 amBUF - SJU
1 stop8h 12mAmerican Airlines
Mon 9/297:05 pmSJU - BUF
2 stops16h 24mAmerican Airlines
Deal found 8/14$215
This American Airlines deal was found by Cheapflights users on 8/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:34 pmBUF - SJU
1 stop8h 20mAmerican Airlines
Sat 10/257:10 amSJU - BUF
2 stops11h 00mAmerican Airlines
Deal found 8/15$220
This Southwest deal was found by Cheapflights users on 8/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:00 amBUF - SJU
1 stop8h 25mSouthwest
Thu 10/95:50 amSJU - BUF
1 stop10h 45mSouthwest
Deal found 8/15$240
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:30 amBUF - SJU
1 stop6h 45mDelta
Wed 11/196:20 pmSJU - BUF
1 stop6h 30mDelta
Deal found 8/15$243
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:12 amBUF - SJU
2 stops13h 25mAmerican Airlines
Mon 9/297:05 pmSJU - BUF
2 stops16h 24mAmerican Airlines
Deal found 8/14$245
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:54 amBUF - SJU
1 stop12h 00mAmerican Airlines
Mon 11/33:05 pmSJU - BUF
2 stops9h 38mAmerican Airlines
Deal found 8/13$247
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:00 amBUF - SJU
2 stops17h 37mAmerican Airlines
Sat 9/274:45 pmSJU - BUF
2 stops17h 02mAmerican Airlines
Deal found 8/13$251
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:30 amBUF - SJU
1 stop6h 45mDelta
Thu 11/206:20 pmSJU - BUF
1 stop6h 30mDelta
Deal found 8/15$258
This Southwest deal was found by Cheapflights users on 8/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:00 amBUF - SJU
1 stop10h 55mSouthwest
Sun 10/125:45 amSJU - BUF
1 stop6h 15mSouthwest
Deal found 8/15$261
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/315:35 amBUF - SJU
1 stop7h 15mJetBlue
Thu 10/307:00 amSJU - BUF
1 stop8h 39mJetBlue
Deal found 8/14$264
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/67:11 pmBUF - SJU
1 stop7h 23mFrontier
Thu 9/113:39 amSJU - BUF
1 stop14h 35mFrontier
Deal found 8/14$265
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/183:52 pmBUF - SJU
1 stop7h 55mDelta
Tue 9/237:00 amSJU - BUF
1 stop8h 08mDelta
Deal found 8/14$272

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo 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 August 16, 2025.
Use the filters below to find and compare flights from Buffalo to Puerto Rico that are best for you.

Fly from

Buffalo

Fly to

Puerto Rico

Route

Depart

Return

Price

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 10/9

8:00 am-11:59 pm

1 stop15h 59m

San Juan Luis Munoz Marin Intl

Wed 10/15

5:30 am-10:53 pm

1 stop17h 23m

$215

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 9/22

7:40 am-3:52 pm

1 stop8h 12m

San Juan Luis Munoz Marin Intl

Mon 9/29

7:05 pm-11:29 am

2 stops16h 24m

$215

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 9/27

6:00 am-11:37 pm

2 stops17h 37m

San Juan Luis Munoz Marin Intl

Thu 10/2

3:50 pm-12:12 am

1 stop8h 22m

$215

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 11/11

6:00 am-5:15 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Fri 11/21

6:20 pm-11:50 pm

1 stop6h 30m

$220

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 11/11

6:00 am-5:15 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Thu 11/20

6:20 pm-11:50 pm

1 stop6h 30m

$220

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 10/20

8:00 am-11:59 pm

1 stop15h 59m

San Juan Luis Munoz Marin Intl

Sat 10/25

5:25 am-2:52 pm

1 stop9h 27m

$220

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 9/20

6:00 am-11:37 pm

2 stops17h 37m

San Juan Luis Munoz Marin Intl

Sat 9/27

4:45 pm-9:47 am

2 stops17h 02m

$220

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 11/4

5:34 am-11:47 pm

1 stop17h 13m

San Juan Luis Munoz Marin Intl

Thu 11/20

6:25 am-10:52 pm

1 stop17h 27m

$220

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 10/14

8:00 am-11:59 pm

1 stop15h 59m

San Juan Luis Munoz Marin Intl

Thu 10/30

7:45 am-6:18 pm

2 stops10h 33m

$220

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 10/2

11:00 am-7:25 pm

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Thu 10/9

5:50 am-4:35 pm

1 stop10h 45m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 51 results
1
2
3
...
6

Best time to book a flight from Buffalo to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Buffalo 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 Buffalo to Puerto Rico

What is the cheapest month to book a flight from Buffalo to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Buffalo to Puerto Rico (average of $254). Flying from Buffalo to Puerto Rico in June is currently the most expensive (average of $339). 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 BUF to PR?

Find hourly flight availability from Buffalo 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 August 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Buffalo to Puerto Rico as you normally would.

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 August 16, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from Buffalo to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,985 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
JetBlue
7.2
Good
2,916 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,211 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Buffalo 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 Buffalo to Puerto Rico?

    For a flight from Buffalo to Puerto Rico, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city.

  • What are the cheapest airlines to fly from Buffalo to Puerto Rico one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $103. However, be on the lookout for offers from American Airlines and Frontier, as they are both options that can get you from Buffalo to Puerto Rico for a low price.

  • What are the most popular routes from Buffalo to Puerto Rico?

    Most travelers choose Buffalo - San Juan Luis Munoz Marin Intl, Buffalo - Ponce Mercedita or Buffalo - Aguadilla Borinquen when deciding on the best route from Buffalo to Puerto Rico.

  • Can I find deals for flights from Buffalo to Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from Buffalo to Puerto Rico?

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

  • Can I find deals for business class flights from Buffalo to Puerto Rico?

    Yes. Cheapflights offers flight deals from Buffalo 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 Buffalo to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Buffalo to Puerto Rico (average of $254). Flying from Buffalo to Puerto Rico in June is currently the most expensive (average of $339). 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.

Alternative routes for Buffalo to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
Newark to Luis Munoz Marin Intl flights
LaGuardia to Luis Munoz Marin Intl flights
Newark to Santiago de los Caballeros flights
John F Kennedy Intl to Montego Bay flights
John F Kennedy Intl to Santiago de los Caballeros flights
John F Kennedy Intl to Oranjestad flights
Newark to Oranjestad flights
John F Kennedy Intl to Punta Cana flights
John F Kennedy Intl to Santo Domingo flights
Newark to Santo Domingo flights
Newark to Punta Cana flights
Newark to Montego Bay flights
John F Kennedy Intl to Port of Spain flights
John F Kennedy Intl to Bridgetown flights
LaGuardia to Punta Cana flights
LaGuardia to Oranjestad flights
Newark to Nassau flights
John F Kennedy Intl to Nassau flights
LaGuardia to Montego Bay flights
LaGuardia to Santo Domingo flights
LaGuardia to Santiago de los Caballeros flights
John F Kennedy Intl to Simpson Bay flights
Newark to Simpson Bay flights
John F Kennedy Intl to Willemstad flights
John F Kennedy Intl to Kingston flights
John F Kennedy Intl to Castries flights
Newark to Saint Thomas Island flights
John F Kennedy Intl to Saint Thomas Island flights
John F Kennedy Intl to Providenciales flights
Newark to Providenciales flights
John F Kennedy Intl to Puerto Plata flights
LaGuardia to Nassau flights
John F Kennedy Intl to St. John's flights
LaGuardia to Simpson Bay flights
John F Kennedy Intl to Castries flights
John F Kennedy Intl to Aguadilla flights
LaGuardia to Saint Thomas Island flights
Newark to George Town flights
LaGuardia to Providenciales flights
John F Kennedy Intl to St. George's flights
White Plains to Luis Munoz Marin Intl flights
Newark to Castries flights
LaGuardia to Kingston flights
Newark to Kingston flights
Newark to Port of Spain flights
Newark to Willemstad flights
LaGuardia to George Town flights
John F Kennedy Intl to George Town flights
LaGuardia to Puerto Plata flights

Top 6 airlines flying from Buffalo to Puerto Rico

Discover the top 6 airlines that operate flights from Buffalo 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$247FlexibilityNo cancel feeOn-time62%
DeltaCheapest$167Average$334FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$220Average$463FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$251Average$502FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$270Average$432FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$290Average$478FlexibilityNo cancel feeOn-time69%

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
©2025 Cheapflights