SJU - BUF

$90 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 2/14. 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
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Everything you should know

Cheapest round-trip
$184
Typical prices: $209-$355
JetBlue
Fri 2/27Mon 3/2
SJU - BUF • 1 stop
Cheapest one-way
$90
Typical prices: $150-$285
Frontier
Sat 2/14
SJU - BUF • 1 stop
Top airlines
JetBlue
Cheapest • from $184 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 39% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, Feb 27 - Mon, Mar 2
JetBlue Logo
11:59 pm - 9:28 am
SJU
-
BUF
10h 29m1 stop
JetBlue Logo
7:30 pm - 3:50 am
BUF
-
SJU
7h 20m1 stop
$184JetBlue
Wed, Feb 4 - Sun, Feb 8
Frontier Logo
4:36 pm - 7:04 pm
SJU
-
BUF
27h 28m1 stop
Frontier Logo
11:02 am - 1:08 am
BUF
-
SJU
13h 06m1 stop
$216Frontier
Fri, Feb 27 - Tue, Mar 3
Southwest Logo
6:30 am - 11:55 am
SJU
-
BUF
6h 25m1 stop
Southwest Logo
1:20 pm - 12:35 am
BUF
-
SJU
10h 15m2 stops
$225Southwest
Wed, Dec 24 - Sun, Jan 4
Frontier Logo
3:55 am - 1:12 pm
SJU
-
BUF
10h 17m1 stop
Frontier Logo
6:32 pm - 11:15 pm
BUF
-
SJU
27h 43m1 stop
$227Frontier
Wed, Feb 18 - Sun, Feb 22
JetBlue Logo
5:15 am - 2:02 pm
SJU
-
BUF
9h 47m1 stop
JetBlue Logo
3:00 pm - 10:25 pm
BUF
-
SJU
6h 25m1 stop
$233JetBlue
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
1:24 pm - 11:42 pm
SJU
-
BUF
11h 18m2 stops
American Airlines Logo
5:12 am - 8:50 pm
BUF
-
SJU
14h 38m2 stops
$235American Airlines
Sat, Feb 14 - Wed, Feb 18
JetBlue Logo
6:22 pm - 11:49 pm
SJU
-
BUF
6h 27m1 stop
JetBlue Logo
3:00 pm - 11:59 pm
BUF
-
SJU
7h 59m1 stop
$240JetBlue
Fri, Mar 20 - Mon, Mar 23
Delta Logo
6:15 am - 3:59 pm
SJU
-
BUF
9h 44m1 stop
Delta Logo
3:56 pm - 10:18 pm
BUF
-
SJU
6h 22m1 stop
$243Delta
Tue, Mar 24 - Mon, Mar 30
American Airlines Logo
4:47 pm - 11:38 pm
SJU
-
BUF
6h 51m1 stop
American Airlines Logo
6:19 am - 12:53 pm
BUF
-
SJU
6h 34m1 stop
$250American Airlines
Tue, Apr 14 - Sun, Apr 19
JetBlue Logo
5:15 am - 1:34 pm
SJU
-
BUF
8h 19m1 stop
JetBlue Logo
7:26 pm - 2:55 am
BUF
-
SJU
7h 29m1 stop
$254JetBlue
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.

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to Buffalo?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo departing in February.

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

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to Buffalo clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Buffalo on a Thursday and more expensive on a Sunday. On your return trip to San Juan, you should consider flying back on a Tuesday, and avoid Sundays for better 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 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 $454 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 24% 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$90
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly with an average 35% 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 $90 for a one-way ticket and $184 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?

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

  • 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 $470 and an overall rating of 7.9, 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.

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.
7.9
SouthwestOverall score based on 4250 reviews
8.1Boarding
8.6Crew
7.5Entertainment
8.0Comfort
7.0Food
Airline reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

2.0 MediocreRobert, Dec 2025
LAS - TPA
Read more Southwest reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

The food is terrible. The staff is wonderful. Comfort is good.

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

One of the best airlines that I flew on, the flight attendants were very attentive and professional.

the over had ligth did not work'd for the all way

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Overall, an average flight; food options were not the best, and there were bugs on the plane.

There was no TV's on the plane? I tried to activated the WiFi multiple times before the plane took off but it wasn't work well.

Air Marco’s fleet of airplanes are old and pathetic. The seats are torn and stained. The monitors don’t work properly. If this wasn’t a business trip and I had control of booking the flight, I would not travel on this carrier.

Good service, friendly staff. Food was average for airlines and the seats were small.

Pathetic check in experience once again. Not enough staff scheduled at bag drop or for special assistance at LHR. Really need to rethink the whole self check in procedure. The crew was good. A very decent selection of special meals in this leg as compared to the JFK-LHR leg.

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

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

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

Not clean and was told I would get a great seat and it was not great at all

Good- no snacks on a 4+ hour flight is painful but more painful was the lack of WiFi.

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

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

Information on your arrival and departure airports