SJU - BUF

$106 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 4/16. 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 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

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

Bundle and saveSave money when you bundle your flight + hotel.

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

Everything you should know

Cheapest round-trip
$210
Overall average: $355
Frontier
Thu 4/23Mon 4/27
SJU - BUF • 1 stop
Cheapest non-stop
$310
JetBlue
Wed 5/6Wed 5/13
SJU - BUF • Non-stop
Nonstop flights
4 days a week
Mon, Wed, Fri, Sat
You can fly direct with JetBlue. Average duration is 4h 49m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $210 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $215 (round-trip)
Shortest trip • 7h 07m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 37% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Buffalo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Juan to Buffalo

Thu, Apr 23 - Mon, Apr 27
Frontier Logo
6:30 am - 7:26 pm
SJU
-
BUF
12h 56m
1 stop
Frontier Logo
11:19 am - 10:48 pm
BUF
-
SJU
11h 29m
1 stop
$210Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
3:21 am - 9:57 am
SJU
-
BUF
6h 36m
1 stop
Frontier Logo
3:58 pm - 2:01 am
BUF
-
SJU
10h 03m
1 stop
$212Frontier
Thu, Apr 23 - Mon, Apr 27
Frontier Logo
6:30 am - 7:26 pm
SJU
-
BUF
12h 56m
1 stop
Frontier Logo
11:19 am - 2:01 am
BUF
-
SJU
14h 42m
1 stop
$223Frontier
Thu, May 7 - Sun, May 10
Frontier Logo
3:03 am - 6:46 pm
SJU
-
BUF
15h 43m
1 stop
Frontier Logo
8:49 pm - 8:04 am
BUF
-
SJU
11h 15m
1 stop
$227Frontier
Mon, Jun 1 - Sun, Jun 7
Frontier Logo
3:03 am - 6:59 pm
SJU
-
BUF
15h 56m
1 stop
Frontier Logo
8:49 pm - 11:22 pm
BUF
-
SJU
26h 33m
1 stop
$232Frontier
Sun, May 31 - Thu, Jun 4
Frontier Logo
6:09 pm - 6:59 pm
SJU
-
BUF
24h 50m
1 stop
Frontier Logo
8:49 pm - 8:04 am
BUF
-
SJU
11h 15m
1 stop
$243Frontier
Tue, Mar 31 - Mon, Apr 6
Frontier Logo
11:07 am - 10:49 am
SJU
-
BUF
23h 42m
1 stop
Frontier Logo
8:16 pm - 12:02 am
BUF
-
SJU
27h 46m
1 stop
$254Frontier
Thu, Apr 23 - Mon, Apr 27
American Airlines Logo
6:45 am - 11:31 pm
SJU
-
BUF
16h 46m
1 stop
American Airlines Logo
7:25 am - 6:10 pm
BUF
-
SJU
10h 45m
2 stops
$257American Airlines
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
6:30 am - 7:26 pm
SJU
-
BUF
12h 56m
1 stop
Multiple Airlines Logo
7:20 am - 11:14 am
BUF
-
SJU
3h 54mnonstop
$259Multiple Airlines
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
6:30 am - 7:26 pm
SJU
-
BUF
12h 56m
1 stop
Multiple Airlines Logo
7:20 am - 11:14 am
BUF
-
SJU
3h 54mnonstop
$264Multiple Airlines
Booking Insights

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

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 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 round-trip 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 September, where tickets cost $205 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $410 and $409 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from San Juan Luis Munoz Marin Intl Airport to Buffalo, you should book around 4 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$106
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 6% 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 $106 for a one-way ticket and $210 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?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the San Juan to Buffalo flight route.

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

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

  • On which days can I fly direct from San Juan to Buffalo?

    You can catch a nonstop flight from San Juan to Buffalo on Monday, Wednesday, Friday, and Saturday.

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

    The two airlines most popular with KAYAK users for flights from San Juan to Buffalo are Southwest and Delta. With an average price for the route of $395 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $306 and an overall rating of 7.9.

  • 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.

KAYAK’s top tips for finding a cheap flight from San Juan Luis Munoz Marin Intl Airport to Buffalo

  • Looking for a cheap flight? 25% of our users found flights on this route for $192 or less one-way.

Prefer to fly direct from San Juan to Buffalo?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Juan Luis Munoz Marin Intl to Buffalo.
Find which airlines fly direct from San Juan Luis Munoz Marin Intl Airport to Buffalo Airport, which days they fly and book direct flights.

Direct departures

San Juan Luis Munoz Marin Intl to Buffalo

Monday

JetBlue

JetBlue

Wednesday

JetBlue

JetBlue

Friday

JetBlue

JetBlue

Saturday

JetBlue

JetBlue

See more direct flights

Direct returns

Buffalo to San Juan Luis Munoz Marin Intl

Monday

JetBlue

JetBlue

Wednesday

JetBlue

JetBlue

Friday

JetBlue

JetBlue

Saturday

JetBlue

JetBlue

See more direct flights

Reviews of the 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
SouthwestOverall score based on 4320 reviews
7.0Food
7.5Entertainment
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

We had a 5 hour delay on the tarmac in Baltimore

2.0 MediocreDavid, Mar 2026
ALB - BWI
Read more Southwest reviews

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Good experience and the flight landed early. There was no food I had or entertainment.

bulkhead seat had very little legroom - even in bsiness class.

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

Qatar does not answer phone calls and communicate with travelers about trip cancellations

The seats have so much room. They give great free snacks. Staff was so nice.

They made me check my bag and I didn't need to as there was overhead space available. I paid for a seat towards the front of the plane and it didn't recline. I requested a refund and they declined to give me one.

It was a pretty smooth flight, I tend to get mini anxiety attacks during flights, however, this time was pretty smooth and I was able to relax. The only thing, I was having issues to connect to the Flyfi internet. I was not able to connect at all, I turned off my phone a couple times and didnt work.

Very smooth flight, good legroom with the "even more room" seats. Entertainment choice was excellent, wifi on board, plane was modern. Pilot got a round of applause for a smooth landing in very blustery conditions. Love flying with them. Check in was OK too. We were too early so we had to wait until groundstaff showed up 3hrs before the flight.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

They initially informed us that the flight was delayed, but only after waiting an hour for updates. In any event, the flight was canceled, but the way it was handled was really poor and egregious. I feel they handled the situation of informing travelers very irresponsibly. I sat in a wheelchair at the airport for over four hours before finally being told that the flight was canceled.

Friendly crew, efficient boarding and flight arrived early. Couldn’t ask for a better experience

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

Movie selections were very limited. Meals were not f So good.

AA is flying sub par aging 787's to Tokyo. I fly other 787's long haul and these are at the bottom. Seats don't work well, tray tables don't work well and were dirty. The flight was great, the plane was not.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

The crew was excellent and overall the flight was good. No complaints.

Meals were not so good. Snack between the meals was very bad. Like Japan Airlines, they could eliminate the snack and make the second meal much better.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

Overall it was a good flight. Because we traveled on a Saturday we were upgraded to FC since my wife and I are both Executive Platinum. The only areas for improvement we noted are better snack assortment and perhaps a little nicer plane as American is flying some older planes now. Everything else on this flight was excellent, which is frankly not the norm for American since we have had multiple issues on prior AA flights.

The smell from the bathroom kept wafting through the cabin. It made people sick.

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

Frontier line changes my flight schedule with out my authorization. They never ask me and with out my concern they cut off 4 hours of my vacation they force my to leave 4 hours early from Puerto Rico.

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

Information on your arrival and departure airports