How long is the flight from Buffalo to San Juan?

Airlines like Delta, United Airlines, and JetBlue fly from Buffalo to San Juan in about 9h 53m. The time it takes to get you to your destination can typically vary by up to 39m. Buffalo and San Juan are separated by a distance of 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 airlines flying from Buffalo to San Juan round-trip?

Currently priced at C$ 168, 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 JetBlue - these airlines can fly you to your destination from C$ 236 and C$ 394, respectively. Delta is currently priced 69% below the average price you’ll pay for this route.

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.

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).

What are the most popular airlines that fly from Buffalo to San Juan?

When booking a flight from Buffalo to San Juan, you may want to consider flying on JetBlue, Southwest or Frontier as they are the most popular for this route.

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.

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.

C$ 159+ Flights from Buffalo to San Juan

Q: How much does it cost to fly round-trip from Buffalo to San Juan?

Airfare is below average for this route at the moment. Buffalo to San Juan flights typically cost between C$ 357 and C$ 614 in March. The cheapest round-trip price found within the last 3 days was C$ 316 on Southwest (1 Mar-5 Mar).

Cheap flight deals from Buffalo to San Juan

Round-trip from	C$ 316
One-way from	C$ 159
Popular in	December
Cheapest in	September
Average price	C$ 520

Southwest
1/3-5/3
2 total stops
26h 15m total
Buffalo to San Juan

Search Deals

Delta
21/2
1 total stop
6h 58m total
Buffalo to San Juan

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (C$ 18 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Find flight deals from Buffalo to San Juan

Enter your travel dates to find the best prices.

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 16 October 2025.

Wed 12/1112:18 p.m.BUF - SJU

2 stops9h 04mUnited Airlines

Sat 15/117:45 a.m.SJU - BUF

2 stops14h 15mUnited Airlines

Deal found 15/10C$ 316

Sun 16/115:02 a.m.BUF - SJU

2 stops9h 52mAmerican Airlines

Thu 20/114:44 p.m.SJU - BUF

1 stop8h 24mAmerican Airlines

Deal found 15/10C$ 330

Fri 31/1012:06 p.m.BUF - SJU

1 stop9h 53mDelta

Wed 5/117:15 a.m.SJU - BUF

1 stop10h 12mDelta

Deal found 14/10C$ 337

Tue 25/119:50 a.m.BUF - SJU

1 stop8h 50mJetBlue

Tue 2/1210:00 a.m.SJU - BUF

1 stop6h 59mJetBlue

Deal found 14/10C$ 352

Tue 28/106:00 a.m.BUF - SJU

1 stop7h 40mUnited Airlines

Fri 31/106:45 a.m.SJU - BUF

2 stops16h 13mUnited Airlines

Deal found 14/10C$ 358

Tue 11/1112:15 p.m.BUF - SJU

1 stop8h 39mJetBlue

Wed 19/118:05 a.m.SJU - BUF

1 stop8h 34mJetBlue

Deal found 13/10C$ 368

Sun 16/117:00 a.m.BUF - SJU

1 stop25h 52mJetBlue

Wed 19/111:59 a.m.SJU - BUF

1 stop8h 00mJetBlue

Deal found 15/10C$ 372

Mon 27/104:15 p.m.BUF - SJU

1 stop8h 30mSouthwest

Sat 1/113:15 p.m.SJU - BUF

1 stop7h 30mSouthwest

Deal found 14/10C$ 376

Sat 8/117:28 p.m.BUF - SJU

1 stop7h 20mJetBlue

Wed 12/118:05 a.m.SJU - BUF

1 stop8h 34mJetBlue

Deal found 15/10C$ 393

Mon 20/103:57 p.m.BUF - SJU

1 stop7h 59mDelta

Sat 25/1012:46 p.m.SJU - BUF

1 stop10h 53mDelta

Deal found 14/10C$ 395

Best flights from Buffalo to San Juan
Discover carefully curated flight deals from Buffalo to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 16 October 2025.

Fri 31/1012:06 p.m.BUF - SJU

1 stop9h 53mDelta

Mon 3/112:06 p.m.SJU - BUF

1 stop10h 50mDelta

Deal found 14/10C$ 358

Wed 12/1110:50 a.m.BUF - SJU

2 stops10h 32mUnited Airlines

Sat 15/117:45 a.m.SJU - BUF

2 stops14h 15mUnited Airlines

Deal found 16/10C$ 386

Sun 1/312:45 p.m.BUF - SJU

1 stop10h 02mJetBlue

Wed 4/31:59 a.m.SJU - BUF

1 stop7h 30mJetBlue

Deal found 13/10C$ 395

Sat 17/111:10 a.m.BUF - SJU

2 stops9h 20mSouthwest

Sat 24/16:00 a.m.SJU - BUF

1 stop7h 00mSouthwest

Deal found 15/10C$ 447

Tue 11/113:45 p.m.BUF - SJU

1 stop7h 11mDelta

Tue 18/117:15 a.m.SJU - BUF

1 stop8h 50mDelta

Deal found 13/10C$ 399

Tue 11/113:45 p.m.BUF - SJU

1 stop7h 11mDelta

Thu 13/113:20 p.m.SJU - BUF

1 stop8h 37mDelta

Deal found 13/10C$ 399

Tue 28/1012:06 p.m.BUF - SJU

1 stop9h 53mDelta

Fri 31/1012:46 p.m.SJU - BUF

1 stop10h 53mDelta

Deal found 14/10C$ 420

Last-minute flights from Buffalo to San Juan
Discover last-minute flight deals from Buffalo to San Juan. Data last updated 16 October 2025 and is based on user searches.

Mon 20/103:57 p.m.BUF - SJU

1 stop7h 59mDelta

Sat 25/1012:46 p.m.SJU - BUF

1 stop10h 53mDelta

Deal found 14/10C$ 395

Mon 27/104:15 p.m.BUF - SJU

1 stop8h 30mSouthwest

Sat 1/113:15 p.m.SJU - BUF

1 stop7h 30mSouthwest

Deal found 14/10C$ 376

Tue 28/106:00 a.m.BUF - SJU

1 stop7h 40mUnited Airlines

Fri 31/106:45 a.m.SJU - BUF

2 stops16h 13mUnited Airlines

Deal found 14/10C$ 358

Fri 31/1012:06 p.m.BUF - SJU

1 stop9h 53mDelta

Wed 5/117:15 a.m.SJU - BUF

1 stop10h 12mDelta

Deal found 14/10C$ 337

Sat 8/117:28 p.m.BUF - SJU

1 stop7h 20mJetBlue

Wed 12/118:05 a.m.SJU - BUF

1 stop8h 34mJetBlue

Deal found 15/10C$ 393

Tue 11/1112:15 p.m.BUF - SJU

1 stop8h 39mJetBlue

Wed 19/118:05 a.m.SJU - BUF

1 stop8h 34mJetBlue

Deal found 13/10C$ 368

Wed 12/1112:18 p.m.BUF - SJU

2 stops9h 04mUnited Airlines

Sat 15/117:45 a.m.SJU - BUF

2 stops14h 15mUnited Airlines

Deal found 15/10C$ 316

Sun 16/115:02 a.m.BUF - SJU

2 stops9h 52mAmerican Airlines

Thu 20/114:44 p.m.SJU - BUF

1 stop8h 24mAmerican Airlines

Deal found 15/10C$ 330

Sun 16/117:00 a.m.BUF - SJU

1 stop25h 52mJetBlue

Wed 19/111:59 a.m.SJU - BUF

1 stop8h 00mJetBlue

Deal found 15/10C$ 372

Tue 25/119:50 a.m.BUF - SJU

1 stop8h 50mJetBlue

Tue 2/1210:00 a.m.SJU - BUF

1 stop6h 59mJetBlue

Deal found 14/10C$ 352

One-way flights from Buffalo to San Juan
Search for one-way flight options from Buffalo to San Juan. Find affordable one-way fares based on user searches. Data last updated 16 October 2025.

Sat 21/24:00 p.m.BUF - SJU

1 stop6h 58mDelta

Deal found 14/10C$ 159

Tue 28/106:00 a.m.BUF - SJU

2 stops14h 00mUnited Airlines

Deal found 14/10C$ 180

Mon 29/124:30 p.m.BUF - SJU

1 stop8h 33mJetBlue

Deal found 15/10C$ 190

Wed 22/106:30 a.m.BUF - SJU

2 stops14h 08mUnited Airlines

Deal found 15/10C$ 198

Fri 31/105:45 a.m.BUF - SJU

1 stop10h 40mSouthwest

Deal found 15/10C$ 211

Mon 27/105:45 a.m.BUF - SJU

2 stops9h 00mSouthwest

Deal found 14/10C$ 242

Fri 31/106:00 a.m.BUF - SJU

2 stops14h 00mUnited Airlines

Deal found 16/10C$ 243

Tue 23/124:30 p.m.BUF - SJU

1 stop9h 28mJetBlue

Deal found 14/10C$ 254

Tue 6/17:00 a.m.BUF - SJU

1 stop9h 54mJetBlue

Deal found 14/10C$ 256

Sat 25/106:30 a.m.BUF - SJU

2 stops14h 08mUnited Airlines

Deal found 15/10C$ 261

Mon 24/115:45 p.m.BUF - SJU

1 stop6h 40mSouthwest

Deal found 14/10C$ 271

Thu 30/105:45 a.m.BUF - SJU

2 stops9h 00mSouthwest

Deal found 15/10C$ 289

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 31/10

12:06 p.m.-9:59 p.m.

1 stop9h 53m

San Juan Luis Munoz Marin Intl

Mon 3/11

2:06 p.m.-11:56 p.m.

1 stop10h 50m

C$ 358

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 12/11

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

2 stops10h 32m

San Juan Luis Munoz Marin Intl

Sat 15/11

7:45 a.m.-9:00 p.m.

2 stops14h 15m

C$ 386

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 1/3

12:45 p.m.-11:47 p.m.

1 stop10h 02m

San Juan Luis Munoz Marin Intl

Wed 4/3

1:59 a.m.-8:29 a.m.

1 stop7h 30m

C$ 395

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 11/11

3:45 p.m.-11:56 p.m.

1 stop7h 11m

San Juan Luis Munoz Marin Intl

Tue 18/11

7:15 a.m.-3:05 p.m.

1 stop8h 50m

C$ 399

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 11/11

3:45 p.m.-11:56 p.m.

1 stop7h 11m

San Juan Luis Munoz Marin Intl

Thu 13/11

3:20 p.m.-10:57 p.m.

1 stop8h 37m

C$ 399

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 28/10

12:06 p.m.-9:59 p.m.

1 stop9h 53m

San Juan Luis Munoz Marin Intl

Fri 31/10

12:46 p.m.-11:39 p.m.

1 stop10h 53m

C$ 420

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 17/1

11:10 a.m.-9:30 p.m.

2 stops9h 20m

San Juan Luis Munoz Marin Intl

Sat 24/1

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

1 stop7h 00m

C$ 447

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 14/11

5:45 p.m.-1:25 a.m.

1 stop6h 40m

C$ 159

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 21/2

4:00 p.m.-11:58 p.m.

1 stop6h 58m

C$ 159

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 28/10

6:00 a.m.-8:00 p.m.

2 stops14h 00m

C$ 180

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/10

Showing 1-10 of 16 results

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?

Booking 44 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, May is the cheapest month in which you can book a flight from Buffalo to San Juan (average of C$ 198). Flying from Buffalo to San Juan in June is currently the most expensive (average of C$ 357). 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?

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 17% on airfare.

How much does it cost to fly round-trip from Buffalo to San Juan?

Reviews of airlines servicing San Juan

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.

Southwest

8.0

Very good

4,241 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,241 reviews

Southwest

8.0

Very good

4,241 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

7.9

Good

7,980 reviews

Southwest

8.0

Very good

4,241 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

8,982 reviews

Southwest

8.0

Very good

4,241 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

JetBlue

7.2

Good

2,907 reviews

Southwest

8.0

Very good

4,241 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Frontier

5.8

Fair

3,137 reviews

Southwest

8.0

Very good

4,241 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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.
How long is the flight from Buffalo to San Juan?
Airlines like Delta, United Airlines, and JetBlue fly from Buffalo to San Juan in about 9h 53m. The time it takes to get you to your destination can typically vary by up to 39m. Buffalo and San Juan are separated by a distance of 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 airlines flying from Buffalo to San Juan round-trip?
Currently priced at C$ 168, 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 JetBlue - these airlines can fly you to your destination from C$ 236 and C$ 394, respectively. Delta is currently priced 69% below the average price you’ll pay for this route.
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, May is the cheapest month in which you can book a flight from Buffalo to San Juan (average of C$ 198). Flying from Buffalo to San Juan in June is currently the most expensive (average of C$ 357). 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

Alternative routes for Buffalo to San Juan

John F Kennedy Intl to Luis Munoz Marin Intl flights

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Buffalo to Luis Munoz Marin Intl flights

Complete your trip

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Top 5 airlines flying from Buffalo to San Juan

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 168	AverageC$ 632	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Frontier	CheapestC$ 236	AverageC$ 384	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
JetBlue	CheapestC$ 394	AverageC$ 592	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Southwest	CheapestC$ 399	AverageC$ 702	FlexibilityNo cancel fee	On-time63%	Search Southwest flights
United Airlines	CheapestC$ 529	AverageC$ 868	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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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Cheap flights from Buffalo to San Juan 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 21/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Buffalo to San Juan

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Buffalo to San Juan

Cheapest flights from Buffalo to San JuanExplore 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 16 October 2025.

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 16 October 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Buffalo to San Juan that are best for you.

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.

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 10 October 2025.

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

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 16 October 2025.

How much does it cost to fly round-trip from Buffalo to San Juan?

Reviews of airlines servicing San Juan

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.

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?

How long is the flight from Buffalo to San Juan?

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

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

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

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

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

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

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?

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

Can Cheapflights find flights from Buffalo to San Juan with no change fees?

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

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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 16 October 2025.