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SJU - BUF

$109 Find cheap flights from San Juan 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 from San Juan to Buffalo departing on 5/9. 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
Sun 6/2
Sun 6/9

Search 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 in flight searches from San Juan to Buffalo, 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 San Juan to Buffalo, as well as popular online travel agencies
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan 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 and deals for you by selecting your travel dates.
Choose your dates
6:13 pm - 7:46 amSJU-BUF
13h 33m1 stop
4:04 pm - 2:09 amBUF-SJU
10h 05m1 stop
$226Frontier
Find Deal
Mon, May 13 - Sat, May 18
6:13 pm - 7:46 amSJU-BUF
13h 33m1 stop
7:48 pm - 3:23 amBUF-SJU
7h 35m1 stop
$234Frontier
Find Deal
Mon, May 13 - Tue, May 14
3:34 am - 10:42 amSJU-BUF
7h 08m1 stop
11:29 am - 7:30 pmBUF-SJU
8h 01m1 stop
$286JetBlue
Find Deal
Wed, May 29 - Tue, Jun 4
10:35 pm - 7:40 amSJU-BUF
9h 05m1 stop
9:20 am - 4:49 pmBUF-SJU
7h 29m1 stop
$319JetBlue
Find Deal
Sun, Jun 16 - Thu, Jun 20
3:54 pm - 8:51 amSJU-BUF
16h 57m1 stop
6:06 am - 4:15 pmBUF-SJU
10h 09m2 stops
$339American Airlines
Find Deal
Thu, Sep 5 - Tue, Sep 10
6:33 am - 10:05 pmSJU-BUF
15h 32m2 stops
6:06 am - 4:15 pmBUF-SJU
10h 09m2 stops
$341American Airlines
Find Deal
Thu, Sep 5 - Tue, Sep 10
6:00 am - 5:39 pmSJU-BUF
11h 39m1 stop
6:10 am - 1:22 pmBUF-SJU
7h 12m1 stop
$413Delta
Find Deal
Thu, Jul 25 - Tue, Jul 30
12:50 pm - 11:56 pmSJU-BUF
11h 06m1 stop
5:28 am - 4:25 pmBUF-SJU
10h 57m1 stop
$415Delta
Find Deal
Wed, May 29 - Wed, Jun 5
1:05 am - 9:37 amSJU-BUF
8h 32m2 stops
6:00 am - 12:55 pmBUF-SJU
6h 55m1 stop
$426United Airlines
Find Deal
Tue, Oct 1 - Tue, Oct 15
1:05 am - 9:37 amSJU-BUF
8h 32m2 stops
10:25 am - 1:45 pmBUF-SJU
27h 20m2 stops
$528United Airlines
Find Deal
Tue, Oct 1 - Tue, Oct 15

Flights from San Juan to Buffalo - Travel Insights & Trends

Get data-powered insights and trends into flights from San Juan to Buffalo 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 San Juan to Buffalo?

The average price of all flights from San Juan Luis Munoz Marin Intl Airport to Buffalo clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Buffalo on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from San Juan to Buffalo. For your return ticket, we recommend flying on a Wednesday and avoiding Thursdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Juan Luis Munoz Marin Intl Airport 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 from San Juan Luis Munoz Marin Intl Airport to Buffalo is January, where tickets cost $304 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is $557 and $522 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Juan Luis Munoz Marin Intl Airport to Buffalo, 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 San Juan Luis Munoz Marin Intl Airport to Buffalo, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 9 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $109. KAYAK users also found San Juan to Buffalo round-trip flights on Frontier from $226 and on JetBlue from $286.

Good to know

Low season

August

High season

July

Cheapest flight

$109
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from San Juan to Buffalo

When to book flights from San Juan to Buffalo

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

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

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo was $109 for a one-way ticket and $226 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Juan and on arrival in Buffalo.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Juan to Buffalo are Delta and JetBlue. With an average price for the route of $351 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 $440 and an overall rating of 7.6.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from San Juan 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 San Juan 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 to San Juan with another airline. Booking your flights between San Juan and BUF 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 San Juan 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 from San Juan 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 San Juan to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Buffalo. 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 San Juan 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
DeltaOverall score based on 10858 reviews
8.0Entertainment
8.6Crew
7.9Comfort
8.2Boarding
7.4Food
Airline reviews

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

6.0 GoodNetty, Apr 2024SYR - JFK
Read more about Delta reviews

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

Super good crew... food was pretty awful- overall Delta is my favorite carrier- takes off on time, good boarding process etc.

Boarding was a little confusing as many folks were trying to get on through priority boarding instead of general. Everything else was excellent.

When checking our bags at the Virgin Atlantic counter, the employee told us that we should go to Delta because we needed to verify our passports and our names. Fortunately the employee organizing the line stopped us and asked why we didn't hand over our suitcases. He sent us to another line and told the employee that we already have the passports verified in the reservation. She understood and received our suitcases. In London they have a general waiting room, where you stay until the gate number of your flight is announced. KAYAK informed us the gate number hours before the airlines did. Just like the flight to London, the legroom is too small. abusive for a flight of so many hours.

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

Seats were broken in premium select and so was monitored on my seat and other people around me

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

The main person that was coordinating everything was a short white/light skin Spanish man and he was very rude. It honestly made me feel like it was everyone’s First day at work. His announcements were very not reasonable and they did not make sense. The stewardess on the flight that made the announcements she didn’t even know what she was talking about she sounded inebriated. There were no snacks or drinks on our flight there wasn’t even much turbulence. This flight was not enjoyable nor was it what a Delta flight should be and just this past week I flew with Delta 3 times.

Great flight crew, easy boarding, delicious snacks and spacious seats. Love flying delta - worth the price.

Horrible. First delta flight was delayed. I ran to my connecting flight and arrived to the gate 13 mins before departure. I told the gate agent “I’m here”, she told me flight was closed while giving my already confirmed seat to an stand by passenger. I said again “madam, I’m here with my confirmed seat” and she said “no you’re not here@ and gave two stand by people a boarding pass and let them board. I asked “madam, why do you do that?”, and she repeated “you’re not here”. That was very rude. I’m disappointed of delta. It used to have a good customer service. Things have changed, but not for good.

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

Flew business class. Everything was excellent. No issues at all. Not very many “good” movies to choose from. But lots of mediocre ones

great flight. Pilot was communicative, flight attendants were excellent. Really nice experience except my tv didn’t work.

The best experience that I have had traveling with JetBlue!

Overall, the flight was better than the flight I took to go to Florida, which had a bunch of problems. The crew is really nice and the plane was new so it had a small problem when we were on the runway, but the flight itself was great. They even made some time back up, which is always a good thing.

Crew was just ok. Flight was packed. On a 3/4 hour flight I would hope they would come around more than once to see if you needed anything further. Not very attentive.

After 14 hour delaybwith departure time changed 9 times then announcing the flight was canceled. Another later announcement said the cancelation was in error. Also after paying a higher fare to leave in the afternoon then departing at 4am was not right.

I cannot say this enough, I NEVER BOARDED OR HAVE HAD ANY TRAVEL IN THE PAST YEAR. However your app says ive been traveling a lot lately. GET REAL HUMANS TO GIVE CUSTOMER SUPPORT.

Everything was good except for deplaning in NY. Took way too long!!

Jet Blue keeps getting iit wrong. 4 hour mechanical delay followed by terrible boarding experience. This is my third horrific jet blue flight in 2024. I am going to try to avoid this loser in the sky

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 food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

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.

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 room where it was being kept.

The flight was delayed due to weather issue…WiFi did not work and even though I wanted to pay for WiFi I couldn’t buy it. Overall very disappointing even though I paid and reserved Business class

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

Not being able to purchase my check in baggage online was a negative.

Comfort of seats, ease of boarding. Food selection could be better

I arrived to the airport 2 hours before my American Airlines flight was scheduled to take off. I have TSA pre-check. The airport was crazy packed when I arrived. After momentarily standing in the pre-check line, the TSA agent said that I am not pre-check. Of course I said that I am because I entered my KTN number on all my traveling sites and programs. I had to get out of line and go back to the AA counter to discover that American Airlines did not add my KTN to my boarding pass. I had to call TSA to find out my number, then have AA enter it onto my boarding pass. The emblem would not load onto my boarding pass. By this time, I decided to use my Clear in order to get through TSA but the line was ridiculous long. By the time I made through TSA, I missed my 11:08am flight and was re-booked for the 5:30pm. This is after the AA employee told me I should have gotten to the airport early. AA use to be a dependable airline not I use them only if I have too.

Horrible people at the gate, they force me to check in my carry on, even thought no one behind me has to do it. I had to get out of the airport in NY to get my bag and go thru security again on my way to Honk Kong. The worst part is the employee threatened me with loosing the flights if don’t comply.

Transfer from Terminal 1 to Terminal 3 by bus is chaotic, because as per information Free Shuttle Bus was supposed to take passengers from Domestic Terminal 1 to International Terminal 3, but the bus took us from Terminal 1 to terminal 2, then to Terminal 1 ,, 2 and finally to Terminal 3

Seats in coach aren't padded enough for a 6 hour flight

The flight crew was really wonderful, incredibly helpful as well as patient. I was able to watch entertainment on my phone but didn't have access to my headphones and I didn't want to bother the flight attendants. The food wasn't an issue for me because I am a vegan and brought my own food on board. The flight left on time and arrived ahead of schedule. It was overall a good flight.

Cut off carry ons, had to check, got on and there was plenty of bin space. Disappointing.

One of the worst flights I have ever taken Delayed over an hour without communication from the crew; very scary Entertainment not working Crew NASTY cabin cold

May never fly American again Delay in take off WITHOUT EXPLANATION Cabin freezing Crew NASTY entertainment did not work entire flight

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 San Juan to Buffalo

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Juan to Buffalo found on KAYAK in the last 72 hours.
5/9Thu
1 stopFrontier
12h 03mSJU-BUF
$109
5/8Wed
1 stopFrontier
28h 38mSJU-BUF
$119
5/7Tue
1 stopFrontier
28h 38mSJU-BUF
$120
6/19Wed
1 stopJetBlue
10h 04mSJU-BUF
$124
6/18Tue
1 stopDelta
11h 29mSJU-BUF
$147
6/11Tue
1 stopJetBlue
10h 15mSJU-BUF
$162
6/15Sat
2 stopsAmerican Airlines
25h 33mSJU-BUF
$175
5/29Wed
2 stopsAmerican Airlines
17h 19mSJU-BUF
$177
5/7Tue
2 stopsUnited Airlines
8h 41mSJU-BUF
$298
5/28Tue
2 stopsUnited Airlines
8h 36mSJU-BUF
$302

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Last minute flights from San Juan to Buffalo

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 San Juan to Buffalo that are departing in the next 10 days.
5/8Wed
multi-stopFrontier
15h 13mSJU-BUF
5/15Wed
multi-stopFrontier
10h 17mBUF-SJU
$231
5/7Tue
multi-stopFrontier
28h 38mSJU-BUF
5/15Wed
multi-stopFrontier
10h 17mBUF-SJU
$237
5/8Wed
multi-stopAmerican Airlines
16h 32mSJU-BUF
5/15Wed
multi-stopAmerican Airlines
10h 57mBUF-SJU
$454
5/8Wed
multi-stopJetBlue
7h 08mSJU-BUF
5/13Mon
multi-stopJetBlue
7h 03mBUF-SJU
$520
5/7Tue
multi-stop
27h 24mSJU-BUF
5/9Thu
multi-stop
17h 24mBUF-SJU
$526
5/7Tue
multi-stop
20h 49mSJU-BUF
5/9Thu
multi-stop
17h 24mBUF-SJU
$541
5/7Tue
multi-stopUnited Airlines
8h 41mSJU-BUF
5/15Wed
multi-stopUnited Airlines
7h 45mBUF-SJU
$547
5/6Mon
multi-stopJetBlue
7h 08mSJU-BUF
5/16Thu
multi-stopJetBlue
9h 29mBUF-SJU
$556
5/8Wed
multi-stopAmerican Airlines
8h 36mSJU-BUF
5/14Tue
multi-stopAmerican Airlines
10h 55mBUF-SJU
$582
5/8Wed
multi-stopUnited Airlines
8h 41mSJU-BUF
5/13Mon
multi-stopUnited Airlines
7h 45mBUF-SJU
$596

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San Juan - Buffalo Flights

Departure:

San Juan (SJU)Puerto Rico

Destination:

Buffalo (BUF)United States

Return flight deals:

Buffalo - San Juan

Cabin classes:

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