$145 Cheap Flights from San José (SJO) to Buffalo (BUF)

View $145 flight on Fri, Dec 12, 2025Opens in a new window

Popular airlines from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF)

Cheap Flights from San José to Buffalo (SJO-BUF)

Prices were available within the past 7 days and start at $145 for one-way flights and $243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Nov 6 - Wed, Nov 12
SJO
San José
BUF
Buffalo
$243 Roundtrip, found 1 day ago
$243
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Nov 6 from San José to Buffalo, returning Wed, Nov 12, priced at $243 found 1 day ago
United
Fri, Nov 7 - Tue, Nov 11
SJO
San José
BUF
Buffalo
$243 Roundtrip, found 1 day ago
$243
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from San José to Buffalo, returning Tue, Nov 11, priced at $243 found 1 day ago
American Airlines
Mon, Jan 19 - Sun, Jan 25
SJO
San José
BUF
Buffalo
$247 Roundtrip, found 20 hours ago
$247
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Mon, Jan 19 from San José to Buffalo, returning Sun, Jan 25, priced at $247 found 20 hours ago
United
Sat, Nov 8 - Sat, Nov 15
SJO
San José
BUF
Buffalo
$248 Roundtrip, found 1 day ago
$248
Roundtrip
found 1 day ago
Select United flight, departing Sat, Nov 8 from San José to Buffalo, returning Sat, Nov 15, priced at $248 found 1 day ago
American Airlines
Mon, Jan 19 - Sun, Jan 25
SJO
San José
BUF
Buffalo
$253 Roundtrip, found 20 hours ago
$253
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Mon, Jan 19 from San José to Buffalo, returning Sun, Jan 25, priced at $253 found 20 hours ago
United
Fri, Nov 7 - Fri, Nov 28
SJO
San José
BUF
Buffalo
$254 Roundtrip, found 1 day ago
$254
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from San José to Buffalo, returning Fri, Nov 28, priced at $254 found 1 day ago
American Airlines
Mon, Jan 19 - Sun, Jan 25
SJO
San José
BUF
Buffalo
$256 Roundtrip, found 20 hours ago
$256
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Mon, Jan 19 from San José to Buffalo, returning Sun, Jan 25, priced at $256 found 20 hours ago
JetBlue Airways
Thu, Dec 18 - Wed, Dec 31
SJO
San José
BUF
Buffalo
$270 Roundtrip, found 1 day ago
$270
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Thu, Dec 18 from San José to Buffalo, returning Wed, Dec 31, priced at $270 found 1 day ago
Delta
Thu, Nov 6 - Wed, Nov 12
SJO
San José
BUF
Buffalo
$278 Roundtrip, found 1 day ago
$278
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Nov 6 from San José to Buffalo, returning Wed, Nov 12, priced at $278 found 1 day ago
Copa
Wed, Nov 12 - Thu, Nov 13
SJO
San José
BUF
Buffalo
$739 Roundtrip, found 5 days ago
$739
Roundtrip
found 5 days ago
Select Copa flight, departing Wed, Nov 12 from San José to Buffalo, returning Thu, Nov 13, priced at $739 found 5 days ago

Find the cheapest month to fly from San José (SJO) to Buffalo (BUF)

October is typically the cheapest month to fly

From $246 - $1,481 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 $247
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $247

Frequently asked questions

How much does a flight from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF) cost?
Snag a cheap one-way flight from $145 or cheap return flight from $243 from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF)?
November is the cheapest month to fly from SJO to BUF. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SJO to BUF flight.
How many flights per day from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF)?
There aren't any daily nonstop flights from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from SJO to BUF?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF)?
To reach Buffalo Niagara Intl. Airport (BUF) on schedule, pick a flight that leaves from Juan Santamaria Intl. Airport (SJO) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Last-minute fares from SJO to BUF are typically more expensive. To lock in the best prices, start looking for flights early. That said, if you can play around with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a SJO to BUF flight and hotel package?
You'll typically save money by booking a SJO to BUF flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your preferred accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Juan Santamaria Intl. Airport (SJO) to Buffalo Niagara Intl. Airport (BUF)?
In most cases, you're able to reschedule or cancel your SJO to BUF flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want further information, go to our Customer Service portal.

Travel information

Origin airport
Juan Santamaría Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
Air Canada, American Airlines, Copa, Delta, JetBlue Airways, Southwest Airlines, United, avianca
Roundtrip price
$242
Distance
2299 mi

Book with confidence

San José to Buffalo Flights

The cheapest times to fly from San José 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 José to Buffalo are during the month of November. You can find some of the cheapest flights from San José to Buffalo with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San José 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 José 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 José to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $145 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 José 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 José 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 José to Buffalo Flights

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*Available to One Key members.