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Cheap flights from Buffalo to San Juan from C$ 168

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
29 Apr — 6 May1
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 24 April 2025.

Round-trip from

C$ 334

One-way from

C$ 168

Popular in

December

Cheapest in

September

Average price

C$ 586
Delta
  • Delta
  • 1/10-8/10
  • 2 total stops
  • 20h 39m total
  • Buffalo to San Juan
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Delta
  • Delta
  • 14/6
  • 1 total stop
  • 9h 28m total
  • Buffalo to San Juan
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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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 24 April 2025.

Tue 2/124:00 p.m.BUF - SJU
1 stop6h 50mDelta
Thu 11/127:00 a.m.SJU - BUF
1 stop9h 38mDelta
Deal found 23/4C$ 334
Sun 21/96:00 a.m.BUF - SJU
1 stop6h 34mUnited Airlines
Fri 26/91:05 a.m.SJU - BUF
2 stops15h 47mUnited Airlines
Deal found 23/4C$ 363
Sun 11/57:28 p.m.BUF - SJU
1 stop7h 23mFrontier
Fri 16/511:20 a.m.SJU - BUF
1 stop8h 28mFrontier
Deal found 23/4C$ 413
Tue 20/510:33 a.m.BUF - SJU
1 stop8h 25mJetBlue
Tue 27/53:33 a.m.SJU - BUF
1 stop10h 20mJetBlue
Deal found 23/4C$ 421
Sun 5/108:40 a.m.BUF - SJU
1 stop7h 10mSouthwest
Thu 9/105:00 a.m.SJU - BUF
2 stops11h 35mSouthwest
Deal found 23/4C$ 489
Sun 11/59:51 a.m.BUF - SJU
2 stops23h 52mMultiple Airlines
Fri 16/511:20 a.m.SJU - BUF
1 stop8h 28mMultiple Airlines
Deal found 23/4C$ 587

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 24 April 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

Wed 1/10

12:09 p.m.-10:08 p.m.

1 stop9h 59m

San Juan Luis Munoz Marin Intl

Wed 8/10

1:10 p.m.-11:50 p.m.

1 stop10h 40m

C$ 334

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 21/9

6:00 a.m.-12:34 p.m.

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Fri 26/9

1:05 a.m.-4:52 p.m.

2 stops15h 47m

C$ 363

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 11/5

7:28 p.m.-2:51 a.m.

1 stop7h 23m

San Juan Luis Munoz Marin Intl

Fri 16/5

11:20 a.m.-7:48 p.m.

1 stop8h 28m

C$ 413

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 20/5

10:33 a.m.-6:58 p.m.

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Tue 27/5

3:33 a.m.-1:53 p.m.

1 stop10h 20m

C$ 421

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 5/10

8:40 a.m.-3:50 p.m.

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Thu 9/10

5:00 a.m.-4:35 p.m.

2 stops11h 35m

C$ 489

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 11/5

9:51 a.m.-9:43 a.m.

2 stops23h 52m

San Juan Luis Munoz Marin Intl

Fri 16/5

11:20 a.m.-7:48 p.m.

1 stop8h 28m

C$ 587

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 17/7

1:47 p.m.-11:55 p.m.

1 stop10h 08m

San Juan Luis Munoz Marin Intl

Thu 24/7

7:55 a.m.-5:36 p.m.

2 stops9h 41m

C$ 974

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 14/6

7:00 a.m.-4:28 p.m.

1 stop9h 28m

C$ 168

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 21/5

6:10 a.m.-4:20 p.m.

1 stop10h 10m

C$ 222

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 26/7

6:45 a.m.-9:24 p.m.

2 stops14h 39m

C$ 327

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/4

Showing 1-10 of 11 results
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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 18 April 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 24 April 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.

What is the cheapest day to fly from Buffalo to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to San Juan. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Buffalo to San Juan flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 mm per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

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 24 April 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from Buffalo to San Juan by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,286 reviews
Check prices

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,286 reviews
Southwest
8.0
Very good
4,286 reviews
Check prices

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,920 reviews
Southwest
8.0
Very good
4,286 reviews
Check prices

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,685 reviews
Southwest
8.0
Very good
4,286 reviews
Check prices

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,924 reviews
Southwest
8.0
Very good
4,286 reviews
Check prices

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,286 reviews
Check prices

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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$ 334, 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 United Airlines and Frontier - these airlines can fly you to your destination from C$ 363 and C$ 413, respectively. Delta is currently priced 39% 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$ 168 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on JetBlue and United Airlines, with prices starting from C$ 222 and C$ 327, 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

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Alternative routes for Buffalo to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
Buffalo to Luis Munoz Marin Intl flights
Newark to Luis Munoz Marin Intl flights

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 24 April 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 166AverageC$ 623FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 235AverageC$ 387FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 343AverageC$ 604FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 465AverageC$ 735FlexibilityNo cancel feeOn-time63%
Search Southwest flights
United AirlinesCheapestC$ 514AverageC$ 857FlexibilityNo 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.

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