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Cheap flights from Buffalo to Puerto Rico from C$ 146

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
12 Sep — 19 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 13 August 2026.

Tue 22/95:44 p.m. -
2 stops17h 16m
Tue 29/96:00 a.m. -
2 stops11h 14m
Deal found 11/8C$ 294
Sat 5/93:30 p.m. -
1 stop6h 30m
Sat 12/96:25 a.m. -
1 stop10h 20m
Deal found 11/8C$ 313
Fri 2/105:45 p.m. -
1 stop6h 20m
Fri 9/105:35 p.m. -
1 stop6h 05m
Deal found 12/8C$ 344
Fri 6/117:42 p.m. -
1 stop16h 21m
Wed 18/116:28 a.m. -
1 stop10h 22m
Deal found 11/8C$ 357
Wed 2/96:55 a.m. -
1 stop7h 49m
Sat 5/94:55 p.m. -
1 stop6h 49m
Deal found 12/8C$ 376
Sat 5/97:00 a.m. -
Nonstop4h 40m
Sat 12/91:15 p.m. -
Nonstop4h 34m
Deal found 11/8C$ 380
Mon 7/96:00 a.m. -
Nonstop4h 32m
Sat 19/91:15 p.m. -
Nonstop4h 34m
Deal found 12/8C$ 383
Sun 6/97:00 a.m. -
1 stop9h 33m
Sat 12/97:00 a.m. -
1 stop9h 03m
Deal found 12/8C$ 396
Fri 6/116:21 p.m. -
2 stops17h 42m
Wed 18/116:55 p.m. -
2 stops17h 21m
Deal found 11/8C$ 403
Sun 6/97:00 a.m. -
1 stop9h 33m
Tue 15/92:59 p.m. -
1 stop8h 53m
Deal found 12/8C$ 410

Find 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 13 August 2026.

Round-trip from

C$ 294

One-way from

C$ 146

Popular in

December

Cheapest in

March

Average price

C$ 502

Good round-trip deal

C$ 461 or less
American Airlines
  • American Airlines
  • 22/9-29/9
  • 4 total stops
  • 28h 30m total
  • Buffalo to Puerto Rico
Search Deals
Southwest
  • Southwest
  • 29/9
  • 1 total stop
  • 7h 05m total
  • Buffalo to Puerto Rico
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Buffalo to Puerto Rico.
Search Deals

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 13 August 2026.
Use the filters below to find and compare flights from Buffalo to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 24/8

6:00 a.m.-10:38 a.m.

Nonstop4h 38m

San Juan Luis Munoz Marin Intl

Fri 28/8

6:29 p.m.-11:07 p.m.

Nonstop4h 38m

C$ 453

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 19/10

7:00 a.m.-2:44 p.m.

1 stop7h 44m

San Juan Luis Munoz Marin Intl

Sat 24/10

7:00 a.m.-11:12 p.m.

2 stops16h 12m

C$ 460

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sun 24/1

6:00 a.m.-2:31 p.m.

1 stop7h 31m

San Juan Luis Munoz Marin Intl

Fri 5/2

3:55 p.m.-11:55 p.m.

1 stop9h 00m

C$ 460

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sat 29/8

7:00 a.m.-4:33 p.m.

1 stop9h 33m

San Juan Luis Munoz Marin Intl

Wed 2/9

2:59 p.m.-11:59 p.m.

1 stop9h 00m

C$ 460

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 11/11

3:59 p.m.-11:55 p.m.

1 stop6h 56m

San Juan Luis Munoz Marin Intl

Sat 14/11

7:15 a.m.-3:18 p.m.

1 stop9h 03m

C$ 460

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Thu 27/8

9:40 a.m.-8:05 p.m.

2 stops10h 25m

San Juan Luis Munoz Marin Intl

Tue 1/9

1:20 p.m.-9:45 p.m.

1 stop8h 25m

C$ 472

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 26/8

2:35 p.m.-10:00 p.m.

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Sat 26/9

5:55 a.m.-5:40 p.m.

1 stop11h 45m

C$ 472

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 21/9

6:05 a.m.-4:49 p.m.

1 stop10h 44m

San Juan Luis Munoz Marin Intl

Thu 24/9

7:30 a.m.-3:05 p.m.

1 stop7h 35m

C$ 481

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 6/11

5:30 p.m.-1:05 a.m.

1 stop6h 35m

San Juan Luis Munoz Marin Intl

Wed 18/11

2:25 p.m.-9:55 p.m.

1 stop8h 30m

C$ 483

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 1/2

5:50 a.m.-3:50 p.m.

2 stops9h 00m

San Juan Luis Munoz Marin Intl

Mon 8/2

5:35 a.m.-2:15 p.m.

2 stops9h 40m

C$ 483

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 21 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Buffalo to Puerto Rico (average of C$ 476). Flying from Buffalo to Puerto Rico in December is currently the most expensive (average of C$ 858). 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 13 August 2026.

When flying from Buffalo to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How far ahead should I book a flight from Buffalo to Puerto Rico?

The price you pay for your flight from Buffalo to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 13 August 2026.
Read reviews from past customers who have flown Southwest,American Airlines, andJetBlue 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
4,219 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,219 reviews
Southwest
8.0
Very good
4,219 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,920 reviews
Southwest
8.0
Very good
4,219 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
JetBlue
7.1
Good
3,035 reviews
Southwest
8.0
Very good
4,219 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Frontier
5.6
Fair
2,700 reviews
Southwest
8.0
Very good
4,219 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

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$ 355, American Airlines can have you in Puerto Rico from Buffalo in 4h 32m. 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.

  • What are the cheapest flights from Buffalo to Puerto Rico?

    The cheapest flight price from Buffalo to Puerto Rico is C$ 425. On average you can expect to pay C$ 485. The most popular route, (Buffalo - San Juan Luis Munoz Marin Intl), can usually be booked for C$ 403.

  • 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, March is the cheapest month in which you can book a flight from Buffalo to Puerto Rico (average of C$ 476). Flying from Buffalo to Puerto Rico in December is currently the most expensive (average of C$ 858). 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 4 airlines flying from Buffalo to Puerto Rico

Discover the top 4 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 13 August 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 203AverageC$ 492FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FrontierCheapestC$ 239AverageC$ 521FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 296AverageC$ 501FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 313AverageC$ 624FlexibilityNo cancel feeOn-time63%
Search Southwest 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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