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BUF - SJU

Find cheap flights from Buffalo to San Juan from $100

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 Juan departing on 5/7. 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
0 bags
Sat 4/27
Sat 5/4

Search hundreds of travel sites at once for deals on flights to San Juan

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San Juan.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San Juan.
In the last 7 days travelers have searched 47,584,047 times on KAYAK, and here is why:

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Cheap flight deals from Buffalo to San Juan

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to San Juan 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 and deals for you by selecting your travel dates.
Choose your dates
8:45 am - 7:02 pmBUF-SJU
10h 17m1 stop
7:43 pm - 7:46 amSJU-BUF
12h 03m1 stop
$215Frontier
Find Deal
Mon, Apr 15 - Thu, Apr 18
8:36 am - 1:56 amBUF-SJU
17h 20m1 stop
9:34 am - 9:24 amSJU-BUF
23h 50m2 stops
$223Frontier
Find Deal
Tue, May 7 - Tue, May 14
10:48 am - 8:08 pmBUF-SJU
9h 20m1 stop
6:02 am - 2:29 pmSJU-BUF
8h 27m1 stop
$262JetBlue
Find Deal
Tue, Apr 30 - Tue, May 7
12:20 pm - 8:35 pmBUF-SJU
8h 15m1 stop
6:00 am - 5:39 pmSJU-BUF
11h 39m1 stop
$284Delta
Find Deal
Wed, Jul 3 - Mon, Jul 15
11:29 am - 9:10 pmBUF-SJU
9h 41m1 stop
3:34 am - 10:42 amSJU-BUF
7h 08m1 stop
$300JetBlue
Find Deal
Tue, May 7 - Mon, May 13
12:20 pm - 10:09 pmBUF-SJU
9h 49m1 stop
6:00 am - 5:39 pmSJU-BUF
11h 39m1 stop
$322Delta
Find Deal
Tue, Jul 9 - Tue, Jul 16
6:10 am - 4:35 pmBUF-SJU
10h 25m2 stops
5:55 pm - 9:47 amSJU-BUF
15h 52m1 stop
$364American Airlines
Find Deal
Tue, Apr 30 - Tue, May 7
6:41 am - 2:43 pmBUF-SJU
8h 02m1 stop
3:54 pm - 11:24 pmSJU-BUF
7h 30m2 stops
$401American Airlines
Find Deal
Sat, Sep 7 - Sat, Sep 14
6:00 am - 1:45 pmBUF-SJU
7h 45m1 stop
1:05 am - 9:46 amSJU-BUF
8h 41m2 stops
$423United Airlines
Find Deal
Sat, May 4 - Tue, May 7
6:00 am - 1:45 pmBUF-SJU
7h 45m1 stop
1:05 am - 10:44 amSJU-BUF
9h 39m1 stop
$473United Airlines
Find Deal
Sun, Sep 22 - Mon, Sep 30

Flights from Buffalo to San Juan - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Buffalo to San Juan?

The average price of all flights from Buffalo to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to San Juan on a Tuesday and more expensive on a Sunday. On your return trip to Buffalo, you should consider flying back on a Wednesday, and avoid Saturdays for better deals.

What is the cheapest month to fly from Buffalo to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, 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 Juan Luis Munoz Marin Intl Airport is September, where tickets cost $294 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $560 and $550 respectively.

How far in advance should I book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Buffalo to San Juan Luis Munoz Marin Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 69 days before departure.

Which airlines provide the cheapest flights from Buffalo to San Juan?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Buffalo to San Juan were found on Frontier ($215) and JetBlue ($262). Frontier proposed the cheapest one-way flight at $100.

How long does a flight from Buffalo to San Juan take?

Flying between San Juan and Buffalo will take minimum 6h 18m and will require at least one stop.

Good to know

Low season

September

High season

December

Cheapest flight

$100
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from Buffalo to San Juan

When to book flights from Buffalo to San Juan

Are your dates flexible? Find out the best times to travel from Buffalo to San Juan 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 Buffalo to San Juan flights

  • What is the cheapest flight from Buffalo to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport was $100 for a one-way ticket and $215 for a round-trip.

  • Do I need a passport to fly between Buffalo and San Juan?

    Yes

  • Which airports will I be using when flying from Buffalo to San Juan?

    Buffalo airport is called Buffalo and the only airport in San Juan is San Juan Luis Munoz Marin Intl.

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

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

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

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

  • What is the most popular layover when flying to San Juan from Buffalo?

    New York is the most popular layover city among KAYAK users traveling from Buffalo to San Juan.

  • Which is the best airline for flights from Buffalo to San Juan, Delta or JetBlue?

    The two airlines most popular with KAYAK users for flights from Buffalo to San Juan are Delta and JetBlue. With an average price for the route of $386 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $460 and an overall rating of 7.7.

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

    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 Juan.

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

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

    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 Juan with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and SJU can sometimes prove cheaper using this method.

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

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

See more FAQs

Top 5 airlines serving from Buffalo to San Juan

Need help choosing which airline to fly with from Buffalo to San Juan? 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 KAYAK reviews.
8.0
DeltaOverall score based on 11418 reviews
81overall
80entertainment
86crew
82boarding
75food
79comfort
Airline reviews

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

Read more about Delta

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

We just spent $6000 on our first trip since pre COVID and we were stranded on the runway of our departing airport for 2 hours and 15 minutes while our layover was only an hour and a half. We were told by the pilot we were next for de-icing and then got bumped by 3 other planes. Pilot went on to say they only had one guy working the de-icing where they usually have at least 2. In Rochester. In the heart of winter. Someone missed a step and should be fired. I'm not done.

Everything went well with the flight. But one of the flight attendants had on inappropriate pants. She had on an old worn out pair of sweat pants. The back seam was unrivaled and should not have been worn for work. If I had not seen her in the airport with the standard type of luggage, I certainly would not have thought she was working for Delta. Not a good look at all for representation.

Great!! I haven’t had a bad experience with them.

The plane was one hour late cause they were doing some reparations with us on the plane no mention I was in the first seat and the door was open the entire time with 8 degrees! The plane was totally dirty no mention old ! The staff was nice but no put together, the attention to details and passenger experience is missing and i always travel first !!! Is better the lounge than the plane! KLM/air France every details is taken care maybe you need a creative creator or experience client need asap was terrible and not memorable for the price that I payed very dissatisfied

Boarding super slow with people allowed to linger in aisles

We flew early evening on New Year's Eve. Our plane was less than half full... Great for the passenger experience -- not so much for the airline lol. Comfortable, spacious, smooth flight -- and early arrival!

First time travel in economy and the worst experience I ever had ! Shame on paying 600 dollars to be in a tuna can ! Service was terrible no even water no even class no even matters your flight attendants were lazy and sloppy very bad experience! After all these years traveling in first and once I try this cause I need to go to a destination for an emergency wow shame on you !

Really impressive staff at airport and on plane, especially given how busy it was

I booked this flight using JetBlue points and I was just so happy. The plane was so clean, I had every need met. Thank you!!

Another horrible Jet Blue experience. This airline has suffered the biggest decline of all from best to worst. TVs didn’t work (again). internet was temperamental. Boarded late and couldn’t get organized to serve snacks.

I hate their constant delays! It’s as if I cannot confidently make plans for timing when I'm traveling with them. I slept through it, so all I can say is it was good.

The staff at JFK were rude and unhelpful. I was harassed for the same bag that I used on my flight to jfk with no issues claiming it was the inappropriate size. The women then allowed my travel companion to board with the same size bag because they thought she was more “humble”. Also on the flight when informing the flight attendant that nationals no longer have to fill out the Bahamas immigration form my statement was met with eye rolling and attitude.

One of the crew members, a male complained about my bag being too heavy, which I felt was really unnecessary. I am disabled and would have carried it myself if I thought it was going to be a problem. In addition the landing was rough because everyone gasped in unison which it touched down.

The boarding and flight were ok, but there were several painful issues. The flight was 3:20 in the air and almost four hours door to door, but they only had snack packs on the plane. They really need to have food on longer flights or make it clear to everyone that they won’t have food. They also advertise free WiFi, but it did not work for 90% of this flight. Again, almost four hours door to door. If I had known I was flying spirit for JetBlue prices then I would have planned differently.

There was no wheelchair or wheelchair escort at the gate..unacceptable

Surly, unhelpful ground staff at JFK. There was a complete lack of empathy—a flawed check-in ordeal caused us to miss our flight. All airlines that I have ever flown would have worked to help me solve the ticket problem. Instead, frontline employees shrugged their shoulders and pointed fingers at us for having made an error. I will do anything to avoid EVER flying on Jet Blue again. It well deserves its low rank among airlines.

No WiFi No TV Bag of chips I guess it could be worse.

I'll nevere ever give up jet blue for years now and I will never change

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

the head jack on my seat didn't work and the power outlet didn't work for my seat

All good except paid for wifi that did not work

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

The crew were really great, but the 4 hour delay in small chunks was the worst.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

The leg space between me and the seat in front of me was excellent.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

That flight was smooth, and staff we courteous. it was a full flight so very tight. The boarding through security was not properly controlled. it was rushed and the scanning process for our bags, etc. was pilling up at the other end with no time to empty our belonging my personal items almost toppled over on the floor if i hadn't caught it rapidly. Was it just that time, or always like this - cant say. other than that all else was fine.

pleased with overall experienced, but seats in coach are tight.

Don't often sit in 1st class. Our experience was great.

The 2 hour delay was frustrating but our crew did a great job getting us out quickly and keeping communication especially with the people who had connecting flights

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

It was right on time and crew were very courteous

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Our original flight was delayed and we almost missed our layover. Fortunately they delayed the second flight as well due to the number of people being on both flights so we got lucky. But it was due to mechanical issues which was frustrating.

So i was checked in for the seat number 40K. Unfortunately my seat was not able to recline which end up having very uncomfortable 15 hours flight.

Lack of information. No meal for a 6hr international flight that departs during dinner time

American always delays flight so it stressful getting the next connection

First time flying Frontier, I am not sure the Ala Carte menu of options is for me.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

See my previous comment which is mostly about our flight from Phoenix to SFO

Terrible. Initially we were shocked by the outrageous baggage fees we needed to pay at check in for our so-called "discounted, economy flight" - we paid over $200 (!!) for one check-in and 2 carry-on bags - this felt like a real bait-and-switch" scam. Our flight from Phoenix to SFO was delayed by 4 hours. Multiple apparent causes (from needing to make space for other planes that were landing late to problem with cabins pressure system, and whatever...). After de-boarding and re-boarding we still waited at least an hour on a cramped, poorly ventilated plane before take-off. Seats were cramped, uncomfortable - did not recline at all. No water until we were flying for a while. No complimentary snacks. Upon arrival at SFO my luggage was sent upstairs to the check-in counter. The customer service person there refused to let me examine a bunch of bags that were sitting on a nearby cart because it was "behind the counter", rather made me wait until another attendant did an exhaustive and failed (?computer) search, came back and told me they were unable to locate my bag. I asked her to look on the cart, lo and behold, there was my bag just a few feet away! Missed my choir rehearsal that evening due to all of the delays. One more thing, a few days later my husband and I tested positive for Covid. Since we both are fully vaccinated, careful about masking and have never had Covid previously, we will never know, but suspect we may have acquired the infection during the prolonged wait on your poorly ventilated plane (person in the row in front of us was coughing). After registering a complaint, we received a measly $50 voucher for future flights. Needless to say we have no intention of flying with Frontier Airlines ever again.

I liked getting off the plane. Everything else was well below standards. Not even offering a bag of peanuts for free for a 4 hours flight is ridiculous.

The whole experience was bad. Didn't know no complimentary drinks or snacks. $4.39 for a soda is ridiculous even a bottle water. A carry on was $74 just crazy. I don't think I will take this airline ever again. Very bad

Delayed...attendants checked every single bag and item for sizes before boarding.

There was no wifi, there was no usb charger on the planes Frontier lowered the weight limit on suitcases from 50 to 40 pounds Frontier now charges for a seat...really? If i don't pay for a basic seat, do i stand the whole flight? Frontier now charges for the carry on, just like for the checked suitcase The bundle pricing is way over priced.

I am HIGHLY unhappy with the amount of money I spent on the flight. Paid in advance only to find the flight at a discount price a week or so before the flight. I will not fly frontier again and have bad mouthed your business since to anyone I have spoken with about flying (which has been many a people). Crew was mediocre and instead of moving me to a spot where I could gain some leg room they sat their flight attendant there. Won’t be flying frontier in the future.

They changed my flight and did not want to accommodate me or try to help me in any way. They do not care about their customers.

Book cheap flights from Buffalo to San Juan

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to San Juan found on KAYAK in the last 72 hours.
5/7Tue
1 stopFrontier
17h 20mBUF-SJU
$100
4/6Sat
1 stopFrontier
10h 54mBUF-SJU
$110
4/3Wed
1 stopFrontier
9h 34mBUF-SJU
$119
5/7Tue
2 stopsAmerican Airlines
9h 32mBUF-SJU
$131
7/2Tue
1 stopDelta
7h 00mBUF-SJU
$180
7/2Tue
2 stopsAmerican Airlines
16h 55mBUF-SJU
$186
7/10Wed
1 stopJetBlue
7h 55mBUF-SJU
$202
6/21Fri
1 stopDelta
8h 01mBUF-SJU
$234
8/5Mon
1 stopJetBlue
9h 52mBUF-SJU
$236
6/21Fri
3 stopsUnited Airlines
18h 38mBUF-SJU
$2,377

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Last minute flights from Buffalo to San Juan

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Buffalo to San Juan that are departing in the next 10 days.
4/1Mon
multi-stop
16h 29mBUF-SJU
4/8Mon
multi-stop
21h 52mSJU-BUF
$459
4/1Mon
multi-stopFrontier
16h 29mBUF-SJU
4/8Mon
multi-stopFrontier
21h 20mSJU-BUF
$466
4/1Mon
multi-stop
16h 29mBUF-SJU
4/7Sun
multi-stop
16h 55mSJU-BUF
$484
3/30Sat
multi-stopFrontier
16h 22mBUF-SJU
4/7Sun
multi-stopFrontier
28h 46mSJU-BUF
$506
3/28Thu
multi-stop
24h 48mBUF-SJU
4/1Mon
multi-stop
13h 24mSJU-BUF
$523
3/31Sun
multi-stopAmerican Airlines
8h 27mBUF-SJU
4/2Tue
multi-stopAmerican Airlines
14h 07mSJU-BUF
$676
3/31Sun
multi-stopAmerican Airlines
8h 47mBUF-SJU
4/2Tue
multi-stopAmerican Airlines
14h 07mSJU-BUF
$678
4/1Mon
multi-stopJetBlue
8h 18mBUF-SJU
4/5Fri
multi-stopJetBlue
7h 38mSJU-BUF
$958
3/28Thu
multi-stopUnited Airlines
7h 41mBUF-SJU
4/3Wed
multi-stopUnited Airlines
8h 41mSJU-BUF
$1,039
3/31Sun
multi-stopUnited Airlines
7h 42mBUF-SJU
4/1Mon
multi-stopUnited Airlines
15h 58mSJU-BUF
$1,085

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Buffalo - San Juan Flights

Departure:

Buffalo (BUF)United States

Destination:

San Juan (SJU)Puerto Rico

Return flight deals:

San Juan - Buffalo

Cabin classes: