Find flights
When to book
Airlines
FAQs

Cheap flights from Buffalo to San Juan from C$ 197

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
6 jul. — 13 jul.1
1 adult

Cheap flight deals from Buffalo to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 julio 2025.

Round-trip from

C$ 343

One-way from

C$ 197

Popular in

December

Cheapest in

September

Average price

C$ 643
Delta
  • Delta
  • 4/11-12/11
  • 2 total stops
  • 19h 03m total
  • Buffalo to San Juan
JetBlue
  • JetBlue
  • 12/8
  • 1 total stop
  • 9h 35m total
  • Buffalo to San Juan
Highest demand for flights based on searches. 5% potential increase in price (C$ 39 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find flight deals from Buffalo to San Juan

Cheapest flights from Buffalo to San Juan
Explore the most affordable flight options available from Buffalo to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 julio 2025.

mar. 4/117:00 a.m.BUF - SJU
1 stop9h 25mDelta
mié. 12/117:00 a.m.SJU - BUF
1 stop9h 38mDelta
Deal found 30/6C$ 343
sáb. 8/117:36 p.m.BUF - SJU
1 stop12h 23mFrontier
lun. 17/1110:07 a.m.SJU - BUF
1 stop8h 33mFrontier
Deal found 29/6C$ 360
lun. 18/810:30 a.m.BUF - SJU
1 stop13h 00mSouthwest
jue. 21/84:05 p.m.SJU - BUF
1 stop7h 00mSouthwest
Deal found 29/6C$ 373
mar. 4/1110:50 a.m.BUF - SJU
2 stops10h 32mUnited Airlines
mié. 12/118:10 a.m.SJU - BUF
2 stops11h 36mUnited Airlines
Deal found 30/6C$ 422
dom. 2/116:32 p.m.BUF - SJU
1 stop8h 17mJetBlue
mar. 13/15:20 p.m.SJU - BUF
1 stop7h 18mJetBlue
Deal found 29/6C$ 442

Cheapflights Fare Finder

Customize your flight search to find flights from Buffalo to San Juan 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 1 julio 2025.
Use the filters below to find and compare flights from Buffalo to San Juan that are best for you.

Fly from

Buffalo

Fly to

San Juan

Route

Depart

Return

Price

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

mar. 4/11

7:00 a.m.-5:25 p.m.

1 stop9h 25m

San Juan Luis Munoz Marin Intl

mié. 12/11

7:00 a.m.-3:38 p.m.

1 stop9h 38m

C$ 343

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

sáb. 8/11

7:36 p.m.-8:59 a.m.

1 stop12h 23m

San Juan Luis Munoz Marin Intl

lun. 17/11

10:07 a.m.-5:40 p.m.

1 stop8h 33m

C$ 360

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

lun. 18/8

10:30 a.m.-11:30 p.m.

1 stop13h 00m

San Juan Luis Munoz Marin Intl

jue. 21/8

4:05 p.m.-11:05 p.m.

1 stop7h 00m

C$ 373

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

mar. 4/11

10:50 a.m.-10:22 p.m.

2 stops10h 32m

San Juan Luis Munoz Marin Intl

mié. 12/11

8:10 a.m.-6:46 p.m.

2 stops11h 36m

C$ 422

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

dom. 2/11

6:32 p.m.-3:49 a.m.

1 stop8h 17m

San Juan Luis Munoz Marin Intl

mar. 13/1

5:20 p.m.-11:38 p.m.

1 stop7h 18m

C$ 442

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

mar. 12/8

7:20 a.m.-4:55 p.m.

1 stop9h 35m

C$ 197

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

dom. 27/7

5:20 a.m.-12:10 p.m.

1 stop6h 50m

C$ 202

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

jue. 14/8

9:07 p.m.-9:04 a.m.

1 stop11h 57m

C$ 303

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

vie. 25/7

7:00 a.m.-8:38 p.m.

2 stops13h 38m

C$ 337

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

jue. 14/8

12:05 p.m.-9:48 p.m.

3 stops33h 43m

C$ 472

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Best time to book a flight from Buffalo to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

How far ahead should I book a flight from Buffalo to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to San Juan. Price data was last updated on 27 June 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Buffalo to San Juan?

Currently, April is the cheapest month in which you can book a flight from Buffalo to San Juan (average of C$ 254). Flying from Buffalo to San Juan in July is currently the most expensive (average of C$ 580). 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 SJU?

Find hourly flight availability from Buffalo to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 julio 2025.

One of the essential ways to save on airfare from Buffalo to San Juan is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 15% on airfare.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated 1 julio 2025.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Buffalo to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to San Juan. 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 San Juan?

    For a flight from Buffalo to San Juan, you will be flying from Buffalo. Buffalo (BUF) is just 13.4 km from the centre of the city. Buffalo is the only Buffalo airport and it handles 0 outbound flights to San Juan per day. 5 airlines have flights to San Juan from Buffalo on a regular basis.

  • What are the cheapest airlines flying from Buffalo to San Juan round-trip?

    Currently priced at C$ 343, Delta will fly you from Buffalo to San Juan and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Southwest - these airlines can fly you to your destination from C$ 360 and C$ 373, respectively. Delta is currently priced 36% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Buffalo to San Juan one-way?

    C$ 197 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Southwest and Frontier, with prices starting from C$ 202 and C$ 303, respectively.

  • Can I find deals for flights from Buffalo to San Juan that include hotel bookings?

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

  • How can I find direct flights from Buffalo to San Juan?

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

  • Can I find deals for business class flights from Buffalo to San Juan?

    Yes. Cheapflights offers flight deals from Buffalo to San Juan 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 San Juan?

    Currently, April is the cheapest month in which you can book a flight from Buffalo to San Juan (average of C$ 254). Flying from Buffalo to San Juan in July is currently the most expensive (average of C$ 580). 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 San Juan

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Buffalo to San Juan

Discover the top 5 airlines that operate flights from Buffalo to San Juan. 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 1 julio 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 163AverageC$ 614FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 232AverageC$ 369FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 338AverageC$ 580FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 458AverageC$ 740FlexibilityNo cancel feeOn-time63%
Search Southwest flights
United AirlinesCheapestC$ 507AverageC$ 768FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 San Juan?

Cheapflights makes it easy to find Buffalo to San Juan flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to San Juan?

Millions of users choose and trust Cheapflights to book the best flight deals from Buffalo to San Juan 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 San Juan with no change fees?

Need flexible booking options for your flight to San Juan from Buffalo? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Buffalo to San Juan become cheaper?

Yes! Start tracking prices for Buffalo to San Juan 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.

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.