$103 Find Cheap Flights from Puerto Rico to Buffalo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Buffalo departing on 9/11. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Buffalo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Buffalo, as well as popular online travel agencies
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Cheap Flights from Puerto Rico to Buffalo

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Puerto Rico to Buffalo 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 Puerto Rico to Buffalo

Thu, Sep 11 - Wed, Sep 17
Southwest Logo
3:30 pm - 11:10 pmSJU-BUF
7h 40m1 stop
Southwest Logo
6:10 am - 2:10 pmBUF-SJU
8h 00m1 stop
$205Southwest
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Thu, Sep 11 - Wed, Sep 17
American Airlines Logo
3:50 pm - 12:12 amSJU-BUF
8h 22m1 stop
American Airlines Logo
8:00 am - 6:14 pmBUF-SJU
10h 14m2 stops
$215American Airlines
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Fri, Oct 31 - Tue, Nov 4
Delta Logo
2:05 pm - 10:52 pmSJU-BUF
8h 47m1 stop
Delta Logo
7:00 am - 5:25 pmBUF-SJU
9h 25m1 stop
$220Delta
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Fri, Aug 22 - Sat, Aug 23
Frontier Logo
3:39 am - 3:23 pmBQN-BUF
11h 44m1 stop
Frontier Logo
7:05 pm - 2:44 amBUF-BQN
7h 39m1 stop
$233Frontier
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Thu, Sep 11 - Sun, Sep 14
Delta Logo
12:58 pm - 11:37 pmSJU-BUF
10h 39m1 stop
Delta Logo
7:00 am - 4:20 pmBUF-SJU
9h 20m1 stop
$235Delta
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Sat, Aug 9 - Sat, Aug 16
Frontier Logo
9:30 pm - 8:52 amSJU-BUF
11h 22m1 stop
Frontier Logo
9:37 pm - 9:04 amBUF-SJU
11h 27m1 stop
$238Frontier
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Fri, Oct 24 - Sat, Nov 1
United Airlines Logo
1:05 am - 4:53 pmSJU-BUF
15h 48m2 stops
United Airlines Logo
10:50 am - 8:00 pmBUF-SJU
9h 10m1 stop
$284United Airlines
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Fri, Oct 24 - Sat, Nov 1
JetBlue Logo
3:03 am - 3:00 pmSJU-BUF
11h 57m1 stop
JetBlue Logo
7:02 pm - 2:49 amBUF-SJU
7h 47m1 stop
$304JetBlue
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Wed, Sep 10 - Wed, Sep 17
United Airlines Logo
1:05 am - 9:45 amSJU-BUF
8h 40m2 stops
United Airlines Logo
7:05 am - 2:44 pmBUF-SJU
7h 39m1 stop
$310United Airlines
Find Deal
Fri, Oct 10 - Sun, Oct 19
JetBlue Logo
3:03 am - 7:04 pmSJU-BUF
16h 01m1 stop
JetBlue Logo
3:55 pm - 12:57 amBUF-SJU
9h 02m1 stop
$312JetBlue
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Buffalo

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

What is the cheapest month to fly to Buffalo?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Buffalo, 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 to Buffalo is September, where tickets cost $258 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Puerto Rico is $460 and $428 respectively. For one-way flights, the best month to travel is September with an average price of $258.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Buffalo, 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, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.


Good to know

Low seasonMarch
Cheapest flight$103
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 72% increase in price.
Flight from San Juan to Buffalo

FAQs - booking Buffalo flights

  • How far is Buffalo Airport from central Buffalo?

    You’ll need to travel 8 miles to reach the Buffalo city center from Buffalo Airport.

  • What is the name of Buffalo’s airport?

    When flying to Buffalo, you'll arrive at Buffalo Airport (BUF). The airport is also known as Buffalo or Buffalo Niagara Intl.

  • What is the cheapest day to fly to Buffalo?

    Based on KAYAK data, the cheapest day to fly to Buffalo is Thursday where round-trip tickets can be as cheap as $317. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $410 on average.

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

    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 to Buffalo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 to Buffalo?

    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 Buffalo with an airline and back with another airline.

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

    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 Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Buffalo?

    The cheapest time of day to fly to Buffalo is generally at night, when round-trip flights cost $327 on average. The most expensive time of day to fly to Buffalo is generally in the evening, which is peak travel time and where the average cost of a ticket is $412.

  • How many direct flights to Buffalo are there each week?

    Each week there are around 651 direct flights from within Puerto Rico to Buffalo. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Buffalo

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Buffalo flight deals.

Reviews of the top 5 airlines serving from Puerto Rico to Buffalo

 
See real verified KAYAK customer reviews for airlines flying to Buffalo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Puerto Rico to Buffalo. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Buffalo? 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
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

2.0 MediocreAnonymous, Jul 2025AUS - RDU
Read more Southwest reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

The crew was amazing; Von, Vera and Guadalupe were very friendly and attentive throughout the entire flight. They were friendly and welcoming to everyone. A solid and dedicated team for sure!

Terrible. I was bumped off of my original flight and spent the next six days fighting to get back on it. I lost hours of my vacation trying to get this situation corrected.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Our flight was canceled after several delays. No hotel vouchers offered, minimal help for resolution leave me ultimately to cancel and book on an other airline. Then waited to get bags for more than 3 hours This whole experience has been awful!!!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The way BCN airport handled boarding was a huge improvement over our trip to Spain from JFK. Instead of gate-mosquitos edging in before their zone was called, in BCN they had clearly marked lines for Zones 1-8 and people just lined up correctly. The flight itself was uneventful. The meal (curried chicken and rice) was one of the better meals we've had on Delta. Entertainment options were plentiful, power chargers were available in Main Cabin, and seats were decent. Flight staff were very friendly and positive throughout the 8 hour flight.

I like for how they process during check in. It was very smoothly.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

flight cancelled after 2 delays. left us sitting in JFK at 1am. no customer service to assist rebooking.

To not have food or proper snacks on a 5 hour flight was the worst.

Spend hours delayed with no food, water anything sitting on the aieplane with no ability to eat or use the restroom. My entire experience was the absolute worst. I will never fly jet Blue again.

It would have been nice if they had offered more than one set of snacks

Ground crew gave me interference about carrying a laptop and a small shoulder bag, even though I told them I traveled with them all the time. I then placed my laptop bag in my carryon and took out a medical device, and ground crew still tried to give interference. I had to remind them that medical devices don't count towards luggage limits. It was quite annoying and unne

Flight was delayed several 3 hours - no reason was given and no communication what so ever.

The gate and ground staff were excellent, friendly, went out of their way to acknowledge my Mosaic status. The plane was an older Airbus, so the seats were a little worn. The in flight attendant was not very nice, and seemed to be annoyed to be at work or be on this flight. Flight was fast and we landed early and pilots kept us informed.

The regular feedback of any changes to our flights. The Jetblue staff were very helpful. Our flights were great. Lots of leg room!

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

Overall fine, but the delay was annoying and the reasons for the delay were not communicated. The crew on board were phenomenal!

A cookie and a soda, packed like sardines, will never be a positive experience. Also, boarded a 5:30 flight at 7:45pm

Whenever a passenger purchase a ticket his advantage number should automatically to his information. It's not everyone remember the number. You request for your number and American airline agent say they will email it....and they never email anything and you loose your mileage just because you don't remember your number. It should automatically go your information and associate with your email account at all times

The flight was two hours late to take off. The captain kept making announcements in English, but the volume on the speakers was low and we could not hear him. The flight attendant’s French translation was loud and clear, but we couldn’t understand French. The crew was nowhere to be found to relay what the captain was announcing. Very frustrating experience. American has to do better.

Paid $35 and not able to access the internet at all.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

You ant watch TV if you don't have a device, the seats have more space, and the snacks are different.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

My flight was canceled I was promised a reginf still not received.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

Both legs of the flight were changed. The day of the flight and length of the trip.

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

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