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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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
27 Jan — 3 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 28 December 2025.

Tue 30/127:58 p.m.BUF - SJU
1 stop12h 00mFrontier
Wed 7/17:18 p.m.SJU - BUF
1 stop13h 55mFrontier
Deal found 26/12C$ 579
Wed 31/1212:10 p.m.BUF - SJU
1 stop11h 25mSouthwest
Thu 8/13:50 p.m.SJU - BUF
1 stop7h 05mSouthwest
Deal found 26/12C$ 592
Tue 30/126:00 a.m.BUF - SJU
2 stops28h 58mMultiple Airlines
Wed 7/17:18 p.m.SJU - BUF
1 stop13h 55mMultiple Airlines
Deal found 26/12C$ 779
Sun 28/125:00 a.m.BUF - SJU
1 stop11h 00mSouthwest
Tue 30/126:05 a.m.SJU - BUF
2 stops9h 30mSouthwest
Deal found 26/12C$ 909
Wed 31/125:35 p.m.BUF - SJU
2 stops11h 36mUnited Airlines
Thu 1/12:05 a.m.SJU - BUF
2 stops12h 19mUnited Airlines
Deal found 27/12C$ 921
Tue 30/126:00 a.m.BUF - SJU
2 stops9h 17mAmerican Airlines
Wed 7/16:00 a.m.SJU - BUF
2 stops10h 17mAmerican Airlines
Deal found 26/12C$ 959
Wed 31/1212:10 p.m.BUF - SJU
1 stop11h 25mSouthwest
Sun 4/19:50 p.m.SJU - BUF
1 stop13h 00mSouthwest
Deal found 26/12C$ 1,037
Tue 30/122:45 p.m.BUF - SJU
2 stops9h 55mSouthwest
Sun 1/25:35 a.m.SJU - BUF
2 stops10h 20mSouthwest
Deal found 26/12C$ 1,039
Tue 30/122:45 p.m.BUF - SJU
2 stops9h 55mSouthwest
Sat 3/16:05 a.m.SJU - BUF
1 stop6h 50mSouthwest
Deal found 28/12C$ 1,271
Sun 28/1212:40 p.m.BUF - SJU
1 stop9h 35mSouthwest
Fri 2/16:05 a.m.SJU - BUF
2 stops9h 30mSouthwest
Deal found 27/12C$ 1,311

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 28 December 2025.

Round-trip from

C$ 242

One-way from

C$ 159

Popular in

December

Cheapest in

September

Average price

C$ 726
Frontier
  • Frontier
  • 24/1-31/1
  • 2 total stops
  • 37h 37m total
  • Buffalo to Puerto Rico
Search Deals
American Airlines
  • American Airlines
  • 22/1
  • 2 total stops
  • 10h 18m total
  • Buffalo to Puerto Rico
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 28 December 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 4/3

12:05 p.m.-11:58 p.m.

1 stop10h 53m

San Juan Luis Munoz Marin Intl

Wed 11/3

6:15 a.m.-3:51 p.m.

1 stop9h 36m

C$ 288

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 5/3

7:00 a.m.-4:50 p.m.

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Thu 12/3

6:15 a.m.-3:51 p.m.

1 stop9h 36m

C$ 288

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 3/2

6:00 a.m.-5:17 p.m.

1 stop10h 17m

San Juan Luis Munoz Marin Intl

Tue 10/2

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

1 stop8h 58m

C$ 288

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 1/3

3:39 p.m.-11:59 p.m.

1 stop7h 20m

San Juan Luis Munoz Marin Intl

Wed 4/3

2:16 p.m.-12:14 a.m.

1 stop10h 58m

C$ 290

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 4/2

11:00 a.m.-9:00 p.m.

1 stop9h 00m

San Juan Luis Munoz Marin Intl

Mon 9/2

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

2 stops12h 19m

C$ 298

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 11/1

5:23 p.m.-6:11 a.m.

2 stops11h 48m

San Juan Luis Munoz Marin Intl

Wed 14/1

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

2 stops12h 19m

C$ 309

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 24/1

3:43 p.m.-11:57 p.m.

1 stop7h 14m

San Juan Luis Munoz Marin Intl

Tue 3/2

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

1 stop8h 58m

C$ 335

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 2/3

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

1 stop7h 21m

San Juan Luis Munoz Marin Intl

Wed 4/3

3:25 p.m.-11:32 p.m.

1 stop9h 07m

C$ 338

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 10/1

7:00 a.m.-2:56 p.m.

1 stop6h 56m

San Juan Luis Munoz Marin Intl

Wed 14/1

2:20 p.m.-11:47 p.m.

1 stop10h 27m

C$ 338

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 9/1

5:23 p.m.-6:11 a.m.

2 stops11h 48m

San Juan Luis Munoz Marin Intl

Wed 14/1

8:10 a.m.-8:29 p.m.

2 stops13h 19m

C$ 338

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/12

Showing 1-10 of 19 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$ 182). Flying from Buffalo to Puerto Rico in December is currently the most expensive (average of C$ 373). 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 28 December 2025.
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
4,256 reviews
Check prices

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
4,256 reviews
Southwest
8.0
Very good
4,256 reviews
Check prices

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
8,021 reviews
Southwest
8.0
Very good
4,256 reviews
Check prices

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
11,069 reviews
Southwest
8.0
Very good
4,256 reviews
Check prices

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
2,902 reviews
Southwest
8.0
Very good
4,256 reviews
Check prices

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
5.8
Fair
3,070 reviews
Southwest
8.0
Very good
4,256 reviews
Check prices

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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$ 288, Delta can have you in Puerto Rico from Buffalo in 10h 53m. 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$ 182). Flying from Buffalo to Puerto Rico in December is currently the most expensive (average of C$ 373). 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 28 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 164AverageC$ 619FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 199AverageC$ 542FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FrontierCheapestC$ 232AverageC$ 379FlexibilityNo cancel feeOn-time62%
Search Frontier flights
SouthwestCheapestC$ 308AverageC$ 664FlexibilityNo cancel feeOn-time63%
Search Southwest flights
JetBlueCheapestC$ 383AverageC$ 506FlexibilityNo 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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