BUF - SJO

C$ 154 Find Cheap Flights from Buffalo to San José

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to San José departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San José

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San José, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San José, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to San José that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to San José

Wed, 12 Nov - Sat, 15 Nov
United Airlines Logo
11:48 a.m. - 7:53 p.m.BUF-SJO
9h 05m1 stop
United Airlines Logo
2:05 p.m. - 10:03 a.m.SJO-BUF
18h 58m1 stop
C$ 352United Airlines
Find Deal
Tue, 11 Nov - Mon, 17 Nov
United Airlines Logo
12:17 p.m. - 7:53 p.m.BUF-SJO
8h 36m1 stop
United Airlines Logo
11:28 p.m. - 4:48 p.m.SJO-BUF
16h 20m2 stops
C$ 358United Airlines
Find Deal
Tue, 3 Mar - Wed, 4 Mar
JetBlue Logo
6:35 a.m. - 12:31 p.m.BUF-SJO
6h 56m1 stop
JetBlue Logo
10:00 a.m. - 11:51 p.m.SJO-BUF
12h 51m1 stop
C$ 404JetBlue
Find Deal
Sun, 11 Jan - Fri, 13 Feb
JetBlue Logo
8:00 a.m. - 4:24 p.m.BUF-SJO
9h 24m1 stop
JetBlue Logo
1:15 p.m. - 11:11 p.m.SJO-BUF
8h 56m1 stop
C$ 460JetBlue
Find Deal
Sat, 31 Jan - Sat, 7 Feb
American Airlines Logo
6:38 a.m. - 11:43 p.m.BUF-SJO
18h 05m1 stop
American Airlines Logo
7:09 a.m. - 4:40 p.m.SJO-BUF
8h 31m1 stop
C$ 469American Airlines
Find Deal
Fri, 16 Jan - Wed, 21 Jan
American Airlines Logo
11:22 a.m. - 10:30 p.m.BUF-SJO
12h 08m1 stop
American Airlines Logo
8:00 a.m. - 10:40 p.m.SJO-BUF
13h 40m2 stops
C$ 475American Airlines
Find Deal
Tue, 13 Jan - Sun, 8 Feb
Delta Logo
7:00 a.m. - 10:15 p.m.BUF-SJO
16h 15m2 stops
Delta Logo
7:00 a.m. - 11:28 p.m.SJO-BUF
15h 28m1 stop
C$ 527Delta
Find Deal
Thu, 15 Jan - Sun, 8 Feb
Delta Logo
5:44 p.m. - 10:15 p.m.BUF-SJO
29h 31m2 stops
Delta Logo
7:00 a.m. - 11:28 p.m.SJO-BUF
15h 28m1 stop
C$ 567Delta
Find Deal
Sun, 30 Nov - Fri, 5 Dec
Southwest Logo
5:00 a.m. - 1:15 p.m.BUF-SJO
9h 15m1 stop
Southwest Logo
9:00 a.m. - 10:00 p.m.SJO-BUF
12h 00m2 stops
C$ 749Southwest
Find Deal
Wed, 14 Jan - Tue, 20 Jan
Southwest Logo
6:05 a.m. - 12:50 p.m.BUF-SJO
7h 45m1 stop
Southwest Logo
1:45 p.m. - 10:20 p.m.SJO-BUF
7h 35m1 stop
C$ 780Southwest
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from C$ 352 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 42% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
C$ 352
Overall average: C$ 755
United Airlines
Wed 12/11Sat 15/11
BUF - SJO • 1 stop
Cheapest one-way flights
C$ 154
Typical prices: C$ 537-C$ 671
American Airlines
Thu 11/12
BUF - SJO • 1 stop
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San José!
Booking Insights

KAYAK's insights & trends for Buffalo to San José flights

Get data-powered insights and trends into flights from Buffalo to San José to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Buffalo to San José?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to San José, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buffalo to San José is September, where tickets cost C$ 497 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is C$ 1,329 and C$ 1,137 respectively.

How far in advance should I book a flight from Buffalo to San José?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Buffalo to San José, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Buffalo to San José, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flightC$ 154
Best time to beat the crowds (43% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Buffalo to San José

When to book flights from Buffalo to San José

Are your dates flexible? Find out the best times to travel from Buffalo to San José based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to San José

  • What is the cheapest flight from Buffalo to San José?

    In the last 3 days, the lowest price for a flight from Buffalo to San José was C$ 154 for a one-way ticket and C$ 352 for a round-trip.

  • Which aircraft models fly most regularly from Buffalo to San José?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to San José?

    oneworld, and Star Alliance are the airline alliances operating flights between Buffalo and San José, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Buffalo to San José, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Buffalo to San José are Southwest and United Airlines. With an average price for the route of C$ 920 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 1,022 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Buffalo to San José?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to San José.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to San José?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to San José?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San José with an airline and back to Buffalo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to San José?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San José from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines flying from Buffalo to San José

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to San José. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to San José? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4241 reviews
8.6Crew
7.0Food
8.1Boarding
8.0Comfort
7.5Entertainment
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Friendly and professional flight crew. Aside from departure delay after boarding, easy flight and smooth landing.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

They only offered water for Group 6. Awful announcements from the Crew. Couldn't understand a single word. Barely came by for the trash afterwards. Man, I love water for a premium flight. Wow. Water in a cup.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

We arrived 4 hours early and still almost missed the flight because they weren’t able to access one of the boarding tickets. They then sent hour bags late and we were all of our without clothing and eventually had to take an expensive cab back and forth to the airport as they wouldn’t deliver the bag which arrived late at night that day and we would have to wait until noon the began day (messing up a second day of plans). Also, all the food has dairy or pork. No vegan or even vegetarian option in the flight—even for purchase.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

flight was delayed for hours with no explanation. The plane was a very old aircraft.

Communication since no reason or explanation was given for 3 hrs delay

The flight departed more than 1 hour late. Leg room is bigger than most airlines

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

Everything you need to know for your flight from Buffalo to San José

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.