Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from San Juan to Buffalo (SJU-BUF)

Prices were available within the past 7 days and start at $113 for one-way flights and $225 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Feb 5 - Sun, Feb 8
SJU
San Juan
BUF
Buffalo
$225 Roundtrip, found 1 hour ago
$225
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Thu, Feb 5 from San Juan to Buffalo, returning Sun, Feb 8, priced at $225 found 1 hour ago
United
Thu, Feb 5 - Sun, Feb 8
SJU
San Juan
BUF
Buffalo
$225 Roundtrip, found 1 hour ago
$225
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Feb 5 from San Juan to Buffalo, returning Sun, Feb 8, priced at $225 found 1 hour ago
United
Thu, Jan 22 - Mon, Jan 26
SJU
San Juan
BUF
Buffalo
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 22 from San Juan to Buffalo, returning Mon, Jan 26, priced at $228 found 1 day ago
Southwest Airlines
Thu, Feb 5 - Sun, Feb 8
SJU
San Juan
BUF
Buffalo
$230 Roundtrip, found 1 hour ago
$230
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Thu, Feb 5 from San Juan to Buffalo, returning Sun, Feb 8, priced at $230 found 1 hour ago
American Airlines
Thu, Feb 5 - Sun, Feb 8
SJU
San Juan
BUF
Buffalo
$235 Roundtrip, found 1 hour ago
$235
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Feb 5 from San Juan to Buffalo, returning Sun, Feb 8, priced at $235 found 1 hour ago
United
Sat, Nov 15 - Sun, Nov 16
SJU
San Juan
BUF
Buffalo
$236 Roundtrip, found 1 day ago
$236
Roundtrip
found 1 day ago
Select United flight, departing Sat, Nov 15 from San Juan to Buffalo, returning Sun, Nov 16, priced at $236 found 1 day ago
JetBlue Airways
Thu, Nov 6 - Wed, Nov 12
SJU
San Juan
BUF
Buffalo
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Nov 6 from San Juan to Buffalo, returning Wed, Nov 12, priced at $240 found 2 days ago
Delta
Thu, Jan 29 - Sun, Feb 1
SJU
San Juan
BUF
Buffalo
$242 Roundtrip, found 4 days ago
$242
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Jan 29 from San Juan to Buffalo, returning Sun, Feb 1, priced at $242 found 4 days ago
Delta
Thu, Dec 4 - Sun, Dec 7
SJU
San Juan
BUF
Buffalo
$244 Roundtrip, found 4 hours ago
$244
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Dec 4 from San Juan to Buffalo, returning Sun, Dec 7, priced at $244 found 4 hours ago
JetBlue Airways
Thu, Dec 4 - Wed, Dec 10
SJU
San Juan
BUF
Buffalo
$244 Roundtrip, found 6 days ago
$244
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Thu, Dec 4 from San Juan to Buffalo, returning Wed, Dec 10, priced at $244 found 6 days ago

Find the cheapest month to fly from San Juan (SJU) to Buffalo (BUF)

March is typically the cheapest month to fly

From $140 - $398 per traveler.

Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $385
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $385

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF) cost?
Grab a cheap one-way flight from $113 or cheap return flight from $225 from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF)?
Traveling in February may help you find better deals, as it's the cheapest month for flights between SJU and BUF. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF)?
To find the cheapest airline flying from SJU to BUF, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF)?
Nonstop flights from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SJU to BUF?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF)?
To avoid possible delays on the Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF) route, travel before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Last-minute bookings from SJU to BUF are usually more expensive. To secure the best prices, start searching for flights as soon as possible. That being said, if you can play around with your travel dates, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a SJU to BUF flight and hotel package?
Securing a SJU to BUF flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our impressive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Buffalo Niagara Intl. Airport (BUF)?
If you reserved your SJU to BUF flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Book with confidence

San Juan to Buffalo Flights

The cheapest times to fly from San Juan to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Buffalo are during the month of February. You can find some of the cheapest flights from San Juan to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Buffalo

Sunday is one of the best days to book for cheap flights from San Juan to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $113 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Juan to Buffalo Flights

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*Available to One Key members.