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BUF - SJU

$109 Find cheap flights from Buffalo to San Juan

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 5/10. 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
Mon 6/3
Mon 6/10

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 43,693,958 times on KAYAK, and here is why:

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Cheap flight deals from Buffalo to San Juan (BUF-SJU)

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
4:04 pm - 2:09 amBUF-SJU
10h 05m1 stop
2:49 am - 4:07 pmSJU-BUF
13h 18m1 stop
$215Frontier
Find Deal
Sat, May 18 - Wed, May 22
8:55 am - 5:25 pmBUF-SJU
8h 30m1 stop
11:10 am - 6:19 pmSJU-BUF
7h 09m1 stop
$248JetBlue
Find Deal
Wed, May 29 - Wed, Jun 5
8:13 pm - 3:23 amBUF-SJU
7h 10m1 stop
5:59 pm - 7:47 amSJU-BUF
13h 48m1 stop
$254Frontier
Find Deal
Mon, May 13 - Thu, May 30
3:14 pm - 11:52 pmBUF-SJU
8h 38m1 stop
1:50 pm - 11:41 pmSJU-BUF
9h 51m1 stop
$286JetBlue
Find Deal
Sat, Jun 8 - Fri, Jun 14
6:00 am - 1:45 pmBUF-SJU
7h 45m1 stop
1:30 pm - 10:58 pmSJU-BUF
9h 28m1 stop
$313United Airlines
Find Deal
Sat, Oct 5 - Sat, Oct 19
6:00 am - 1:45 pmBUF-SJU
7h 45m1 stop
1:30 pm - 11:45 pmSJU-BUF
10h 15m2 stops
$348United Airlines
Find Deal
Sat, Sep 28 - Wed, Oct 2
2:10 pm - 11:05 pmBUF-SJU
8h 55m1 stop
12:50 pm - 11:56 pmSJU-BUF
11h 06m1 stop
$351Delta
Find Deal
Wed, May 15 - Fri, May 31
6:08 am - 3:40 pmBUF-SJU
9h 32m2 stops
6:30 am - 11:49 pmSJU-BUF
17h 19m2 stops
$352American Airlines
Find Deal
Wed, May 29 - Sun, Jun 2
6:08 am - 3:40 pmBUF-SJU
9h 32m2 stops
3:49 pm - 12:23 amSJU-BUF
8h 34m1 stop
$367American Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
2:10 pm - 11:05 pmBUF-SJU
8h 55m1 stop
12:50 pm - 11:56 pmSJU-BUF
11h 06m1 stop
$386Delta
Find Deal
Sat, May 25 - Fri, May 31

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 Wednesday and more expensive on a Thursday. 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 ($248). Frontier proposed the cheapest one-way flight at $109.

Good to know

Low season

September

High season

December

Cheapest flight

$109
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 $109 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 $452 and an overall rating of 7.6.

  • 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

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to San Juan. 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 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 verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10848 reviews
8.0Entertainment
7.4Food
7.9Comfort
8.6Crew
8.2Boarding
Airline reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

6.0 GoodDan, Apr 2024LGA - DEN
Read more about Delta reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Seat back monitors and outlets were dead and not working.

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

The flight was delayed but we got to our final destination.

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.

at the time for boarding the lady just call Group A and no other goups and everybody from A to F go inside without the right turn,and when we get in theres no more spsce for carry on , the ones that get in at not correct group from the back occupy our space !!!!! a mess !!!!

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

Jetblue needs to improve on Onboarding as it seems to always be behind on departing. It never leaves on time. I would recommend to have an earlier Onboarding in order to leave on time and respect your customers time as well.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

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.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

WiFi connected but only let you go to the AA website, not even text messaging worked.

I think the seats on some of their planes are uncomfortable. You can be ok on a short flight of two hours but no more than that. The delays, and also the refreshments on the plane were not enough.

Awful customer service on the phone. No phone number on the website to call a real person. Website says changes are no charge but this is a lie. I had a cheaper ticket through Kayak therefore Finnair wouldn’t change it unless I would pay the entire fare again. I begged but their agents at the airport were rude and the online chat person cut off the call with no help. Super disappointed. Wont fly this airline again and will tell everyone I meet how bad it is. Crew on the flight was nice but otherwise huge disappointment.

The flight was excellent, provided that we had inclement weather. We departed earlier than scheduled and arrived early. There was a little turbulence, but nothing to be worried about.

It was less than what is expected for a business class ticket I thought that the staff actively ignored me because I either looked Indian or Hispanic to them and I guess I did not deserve their attention. The food which included a beef entree was not available so not enough food was ordered for number of seats available. I will say experience in Greenwich lounge was very good and the staff there at the airport were very nice. May be your crew needs to learn about racial equity so that everyone gets either the same aweful treatment or hopefully the best treatment which is what we expect I recommend you take a flight with Singapore airlines that I have taken and the crew remember your last names and use it to address each person, food never finishes if you are at the back of business class and crew anticipate your need even before you articulate. Same price and 100 times better service than American Airlines

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

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

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.
5/10Fri
1 stopFrontier
7h 35mBUF-SJU
$109
5/10Fri
1 stopFrontier
17h 33mBUF-SJU
$114
5/29Wed
1 stopJetBlue
8h 30mBUF-SJU
$124
5/29Wed
2 stopsAmerican Airlines
10h 05mBUF-SJU
$128
5/29Wed
2 stopsAmerican Airlines
9h 32mBUF-SJU
$132
6/25Tue
1 stopDelta
10h 49mBUF-SJU
$147
5/26Sun
1 stopJetBlue
9h 41mBUF-SJU
$162
5/29Wed
1 stopDelta
10h 57mBUF-SJU
$176
5/10Fri
2 stopsUnited Airlines
9h 27mBUF-SJU
$298
5/10Fri
3 stopsUnited Airlines
23h 35mBUF-SJU
$450

Search by stops

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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.
5/8Wed
multi-stopFrontier
10h 17mBUF-SJU
5/11Sat
multi-stopFrontier
22h 43mSJU-BUF
$282
5/6Mon
multi-stopFrontier
7h 10mBUF-SJU
5/8Wed
multi-stopFrontier
11h 35mSJU-BUF
$338
5/6Mon
multi-stopFrontier
7h 10mBUF-SJU
5/8Wed
multi-stopFrontier
11h 35mSJU-BUF
$339
5/6Mon
multi-stopFrontier
7h 10mBUF-SJU
5/7Tue
multi-stopFrontier
28h 38mSJU-BUF
$341
5/8Wed
multi-stopAmerican Airlines
11h 05mBUF-SJU
5/11Sat
multi-stopAmerican Airlines
14h 44mSJU-BUF
$572
5/8Wed
multi-stopAmerican Airlines
10h 05mBUF-SJU
5/11Sat
multi-stopAmerican Airlines
14h 44mSJU-BUF
$574
5/6Mon
multi-stopJetBlue
9h 29mBUF-SJU
5/7Tue
multi-stopJetBlue
7h 08mSJU-BUF
$638
5/6Mon
multi-stopJetBlue
7h 03mBUF-SJU
5/7Tue
multi-stopJetBlue
7h 08mSJU-BUF
$639
5/8Wed
multi-stopUnited Airlines
13h 38mBUF-SJU
5/10Fri
multi-stopUnited Airlines
15h 44mSJU-BUF
$675
5/6Mon
multi-stopUnited Airlines
7h 45mBUF-SJU
5/7Tue
multi-stopUnited Airlines
8h 41mSJU-BUF
$754

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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: