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Cheap flights from Buffalo to Puerto Rico from C$ 159

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

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 4 November 2025.

Round-trip from

C$ 338

One-way from

C$ 159

Popular in

December

Cheapest in

September

Average price

C$ 507
Frontier
  • Frontier
  • 20/2-27/2
  • 2 total stops
  • 32h 58m total
  • Buffalo to Puerto Rico
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Delta
  • Delta
  • 20/1
  • 1 total stop
  • 11h 08m total
  • Buffalo to Puerto Rico
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Buffalo to Puerto Rico

Enter your travel dates to find the best prices.

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 4 November 2025.

Mon 17/119:53 p.m.BUF - SJU
1 stop12h 26mFrontier
Mon 24/116:52 p.m.SJU - BUF
1 stop19h 12mFrontier
Deal found 2/11C$ 347
Wed 12/116:00 a.m.BUF - SJU
2 stops14h 26mUnited Airlines
Tue 18/118:10 a.m.SJU - BUF
1 stop9h 38mUnited Airlines
Deal found 2/11C$ 376
Thu 13/117:00 a.m.BUF - SJU
1 stop10h 20mJetBlue
Mon 17/1112:30 p.m.SJU - BUF
1 stop9h 04mJetBlue
Deal found 3/11C$ 396
Fri 5/1212:35 p.m.BUF - SJU
1 stop9h 45mSouthwest
Tue 9/125:45 a.m.SJU - BUF
1 stop6h 45mSouthwest
Deal found 2/11C$ 399
Mon 17/119:53 p.m.BUF - SJU
1 stop12h 26mFrontier
Sat 22/113:59 a.m.SJU - BUF
1 stop8h 26mFrontier
Deal found 2/11C$ 401
Wed 12/1112:10 p.m.BUF - SJU
1 stop8h 55mSouthwest
Tue 18/115:45 a.m.SJU - BUF
1 stop6h 45mSouthwest
Deal found 1/11C$ 446
Tue 2/123:27 p.m.BUF - SJU
1 stop7h 25mAmerican Airlines
Tue 9/1212:49 p.m.SJU - BUF
2 stops11h 55mAmerican Airlines
Deal found 4/11C$ 470

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 629,999 searches. Data last updated 4 November 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

Wed 12/11

6:00 a.m.-9:26 p.m.

2 stops14h 26m

San Juan Luis Munoz Marin Intl

Tue 18/11

8:10 a.m.-4:48 p.m.

1 stop9h 38m

C$ 376

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 7/1

6:03 a.m.-2:10 p.m.

1 stop7h 07m

San Juan Luis Munoz Marin Intl

Tue 13/1

7:00 a.m.-2:58 p.m.

1 stop8h 58m

C$ 428

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 11/12

12:10 p.m.-10:05 p.m.

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Mon 15/12

5:45 a.m.-11:30 a.m.

1 stop6h 45m

C$ 511

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 21/11

7:42 p.m.-3:48 a.m.

1 stop7h 06m

San Juan Luis Munoz Marin Intl

Sat 22/11

1:59 a.m.-9:21 a.m.

1 stop8h 22m

C$ 512

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 8/11

12:15 p.m.-9:54 p.m.

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Mon 17/11

12:30 p.m.-8:34 p.m.

1 stop9h 04m

C$ 514

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 12/11

12:40 p.m.-12:35 a.m.

2 stops10h 55m

San Juan Luis Munoz Marin Intl

Tue 18/11

5:45 a.m.-2:20 p.m.

2 stops9h 35m

C$ 521

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 8/11

3:57 p.m.-1:15 a.m.

1 stop8h 18m

San Juan Luis Munoz Marin Intl

Mon 17/11

7:15 a.m.-3:05 p.m.

1 stop8h 50m

C$ 535

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 7/11

3:40 p.m.-1:25 a.m.

1 stop8h 45m

San Juan Luis Munoz Marin Intl

Sun 9/11

7:40 a.m.-6:00 p.m.

1 stop11h 20m

C$ 571

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 27/1

10:45 a.m.-12:36 a.m.

2 stops12h 51m

San Juan Luis Munoz Marin Intl

Sat 31/1

2:05 a.m.-1:24 p.m.

2 stops12h 19m

C$ 578

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 20/1

11:51 a.m.-11:59 p.m.

1 stop11h 08m

C$ 159

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 17 results
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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, February is the cheapest month in which you can book a flight from Buffalo to Puerto Rico (average of C$ 187). Flying from Buffalo to Puerto Rico in June is currently the most expensive (average of C$ 357). 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 4 November 2025.

When flying from Buffalo to Puerto Rico, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 44% versus a flight in the evening.

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 4 November 2025.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Buffalo to Puerto Rico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,237 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,237 reviews
Southwest
8.0
Very good
4,237 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,002 reviews
Southwest
8.0
Very good
4,237 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,237 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
JetBlue
7.2
Good
2,907 reviews
Southwest
8.0
Very good
4,237 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,116 reviews
Southwest
8.0
Very good
4,237 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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?

    Located just 13.4 km from the city centre, Buffalo (BUF) is the airport most travellers will use when flying to Puerto Rico from Buffalo.

  • How long is the flight from Buffalo to Puerto Rico?

    For as low as C$ 428, United Airlines can have you in Puerto Rico from Buffalo in 7h 07m. The distance from Buffalo to Puerto Rico is about 2974 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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, February is the cheapest month in which you can book a flight from Buffalo to Puerto Rico (average of C$ 187). Flying from Buffalo to Puerto Rico in June is currently the most expensive (average of C$ 357). 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

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Top 5 airlines flying from Buffalo to Puerto Rico

Discover the top 5 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 629,999 searches. Data last updated 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 168AverageC$ 636FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 236AverageC$ 389FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 394AverageC$ 589FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 399AverageC$ 706FlexibilityNo cancel feeOn-time63%
Search Southwest flights
United AirlinesCheapestC$ 529AverageC$ 868FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Buffalo to Puerto Rico?

When you search for this flight from Buffalo to Puerto Rico, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Puerto Rico?

Millions of users choose and trust Cheapflights to book the best flight deals from Buffalo to Puerto Rico for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Buffalo to Puerto Rico with no change fees?

Certainly. Search results for flights to Puerto Rico from Buffalo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Buffalo to Puerto Rico become cheaper?

Yes! Start tracking prices for Buffalo to Puerto Rico flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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