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Cheap flights from Buffalo to Puerto Rico from C$ 147

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
20 Feb — 27 Feb1
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 21 January 2026.

Sat 31/18:30 a.m.
BUF
-
SJU
2 stops12h 52m
United Airlines
Thu 5/28:35 a.m.
SJU
-
BUF
2 stops11h 50m
United Airlines
Deal found 21/1C$ 293
Tue 3/37:30 p.m.
BUF
-
SJU
1 stop7h 21m
JetBlue
Tue 10/310:59 p.m.
SJU
-
BUF
1 stop10h 36m
JetBlue
Deal found 20/1C$ 294
Sat 28/21:20 p.m.
BUF
-
SJU
1 stop6h 35m
Southwest
Thu 5/36:00 a.m.
SJU
-
BUF
1 stop6h 40m
Southwest
Deal found 20/1C$ 312
Sun 1/37:35 p.m.
BUF
-
SJU
1 stop7h 16m
JetBlue
Wed 4/36:10 a.m.
SJU
-
BUF
1 stop7h 34m
JetBlue
Deal found 19/1C$ 314
Sat 31/18:30 a.m.
BUF
-
SJU
2 stops11h 56m
United Airlines
Tue 3/28:10 a.m.
SJU
-
BUF
1 stop7h 04m
United Airlines
Deal found 21/1C$ 315
Tue 27/17:30 a.m.
BUF
-
SJU
1 stop6h 45m
Southwest
Tue 3/25:40 a.m.
SJU
-
BUF
1 stop7h 00m
Southwest
Deal found 19/1C$ 321
Tue 2/64:00 p.m.
BUF
-
SJU
1 stop6h 50m
JetBlue
Mon 8/66:20 p.m.
SJU
-
BUF
Nonstop4h 25m
JetBlue
Deal found 21/1C$ 330
Sat 21/24:37 p.m.
BUF
-
SJU
1 stop9h 16m
Frontier
Sun 1/33:53 a.m.
SJU
-
BUF
1 stop7h 56m
Frontier
Deal found 21/1C$ 337
Fri 8/57:39 p.m.
BUF
-
SJU
1 stop6h 28m
JetBlue
Mon 11/511:59 p.m.
SJU
-
BUF
1 stop9h 01m
JetBlue
Deal found 21/1C$ 343
Tue 10/310:35 a.m.
BUF
-
SJU
1 stop8h 18m
JetBlue
Wed 18/35:10 a.m.
SJU
-
BUF
1 stop7h 24m
JetBlue
Deal found 21/1C$ 351
Tue 24/26:07 a.m.
BUF
-
SJU
1 stop6h 10m
United Airlines
Tue 3/38:05 a.m.
SJU
-
BUF
1 stop7h 08m
United Airlines
Deal found 21/1C$ 355
Tue 27/16:00 a.m.
BUF
-
SJU
2 stops14h 00m
United Airlines
Tue 3/28:10 a.m.
SJU
-
BUF
1 stop7h 04m
United Airlines
Deal found 19/1C$ 358

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 21 January 2026.

Round-trip from

C$ 293

One-way from

C$ 147

Popular in

December

Cheapest in

September

Average price

C$ 499
United Airlines
  • United Airlines
  • 31/1-5/2
  • 4 total stops
  • 24h 42m total
  • Buffalo to Puerto Rico
Search Deals
Southwest
  • Southwest
  • 31/1
  • 1 total stop
  • 6h 30m total
  • Buffalo to Puerto Rico
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 21 January 2026.
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

Tue 3/3

7:30 p.m.-3:51 a.m.

1 stop7h 21m

San Juan Luis Munoz Marin Intl

Tue 10/3

10:59 p.m.-9:35 a.m.

1 stop10h 36m

C$ 294

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 4/3

7:41 p.m.-3:51 a.m.

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Wed 11/3

10:59 p.m.-9:02 a.m.

1 stop10h 03m

C$ 294

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 1/3

7:35 p.m.-3:51 a.m.

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Wed 4/3

6:10 a.m.-12:44 p.m.

1 stop7h 34m

C$ 314

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 25/4

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

1 stop7h 44m

San Juan Luis Munoz Marin Intl

Sat 2/5

7:20 a.m.-9:01 p.m.

2 stops13h 41m

C$ 321

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 2/6

4:00 p.m.-12:59 a.m.

1 stop8h 59m

San Juan Luis Munoz Marin Intl

Sun 7/6

3:30 a.m.-11:29 a.m.

1 stop7h 59m

C$ 343

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 10/3

7:30 p.m.-2:54 a.m.

1 stop7h 24m

San Juan Luis Munoz Marin Intl

Tue 17/3

5:10 a.m.-12:34 p.m.

1 stop7h 24m

C$ 351

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 8/5

7:39 p.m.-2:07 a.m.

1 stop6h 28m

San Juan Luis Munoz Marin Intl

Mon 11/5

6:15 p.m.-11:04 p.m.

Nonstop4h 49m

C$ 365

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 31/1

4:40 p.m.-12:10 a.m.

1 stop6h 30m

C$ 147

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 19/4

7:02 p.m.-2:07 a.m.

1 stop7h 05m

C$ 148

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 18/3

7:58 p.m.-2:27 a.m.

1 stop6h 29m

C$ 148

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

Showing 1-10 of 18 results
1
2

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$ 191). Flying from Buffalo to Puerto Rico in December is currently the most expensive (average of C$ 343). 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.

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 21 January 2026.
Read reviews from past customers who have flown Southwest,Delta, andAmerican 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
4,266 reviews
Check prices

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews
Check prices

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,089 reviews
Southwest
8.0
Very good
4,266 reviews
Check prices

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,174 reviews
Southwest
8.0
Very good
4,266 reviews
Check prices

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,890 reviews
Southwest
8.0
Very good
4,266 reviews
Check prices

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,057 reviews
Southwest
8.0
Very good
4,266 reviews
Check prices

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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$ 294, JetBlue can have you in Puerto Rico from Buffalo in 7h 21m. The distance from Buffalo to Puerto Rico is about 2974 km.

  • 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$ 191). Flying from Buffalo to Puerto Rico in December is currently the most expensive (average of C$ 343). 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 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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 165AverageC$ 622FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 201AverageC$ 504FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FrontierCheapestC$ 235AverageC$ 384FlexibilityNo cancel feeOn-time62%
Search Frontier flights
SouthwestCheapestC$ 311AverageC$ 669FlexibilityNo cancel feeOn-time63%
Search Southwest flights
JetBlueCheapestC$ 388AverageC$ 512FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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