Find Cheap Flights from Buffalo to San Juan Luis Munoz Marin International (BUF - SJU)

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Good to Know

Low Season:
September
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
3%
expected price increase
Average Price:
$400
(avg. price over the last 2 weeks)
Good Deal:
$322
or less (round trip)

When to Book Flights from Buffalo to San Juan Luis Munoz Marin International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $321 or less.
The cheapest flight from Buffalo to San Juan Luis Munoz Marin International was found 63 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 52% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Buffalo to San Juan Luis Munoz Marin International Flights

How long does a flight from Buffalo to San Juan Luis Munoz Marin International take?
An average nonstop flight takes 6h 00m, covering a distance of 1849 miles.
Which airlines provide the cheapest flights from Buffalo to San Juan Luis Munoz Marin International?
In the past 3 days, the cheapest round-trip tickets were found on American Airlines ($265), Delta ($268) and United ($268).
Do I need a passport to fly between Buffalo and San Juan Luis Munoz Marin International?
Yes.
What’s the cheapest day of the week to fly Buffalo to San Juan Luis Munoz Marin International?
For Buffalo to San Juan Luis Munoz Marin International, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from San Juan Luis Munoz Marin International back to Buffalo, the best deals are generally found on Friday, with Wednesday being the most expensive.

Book cheap flights from Buffalo to San Juan Luis Munoz Marin International (round-trip)

Airports
Origin
Buffalo
$265
only
$265
Destination
San Juan
$265
only
$265
Wed, Feb 14
BUF
SJU
7h 02m
Fri, Mar 2
SJU
BUF
7h 25m
Trip: 17 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27083 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PHL
MSP
Good 6.0

Crew; snacks are okay, but could be better.

Coffee is always burnt; overhead compartments too small; too little space for legs.

PHL
LAX
Mediocre 2.0

American Airlines lied to us that this flight was canceled. They made me go to the ticket counter to book another flight. While standing in line, my husband found out it was not canceled, but they were boarding the plane. The porter that pushed my mother in the wheelchair was able to get our bags checked. No American Airlines employee would help us. They just said to go back to the end of the line. The porter called the gate to have the plane wait for us. American Airlines DISCRIMINATES especially against the elderly!

MAD
JFK
Okay 4.6

Crew members were very humane and supportive.

We flew a transatlantic flight during storm Grayson in a 757. Not only it was irresponsable, but dangerous. Communications from the cockpit was poor.

MUC
PHL
Mediocre 2.0

NOTHING!

American Airlines DISCRIMINATES especially against the elderly! The airlines took my family of 6 off the flight that I booked 6 months in advance, and I had no flight out of Munich, Germany. I do not know why. I called and had them put us back on the flight. I paid extra for seats so that we could all sit together. The seats were given to others and my family could not sit together. The American Airlines employees were not helpful at all! The agent, Rowna, lied to us that we would be sitting together. They will not reimburse me for paying extra for seats that I did not get. The porter that pushed my mother in the wheelchair was more helpful than any employee.

LHR
ORD
Excellent 10.0

The only complaint I have is our bags getting lost twice. I’m very understanding that these things happen. But for it to happen twice seems like people might be careless to the problem.

Fri, Jan 26
BUF
SJU
6h 36m
Sun, Jan 28
SJU
BUF
8h 00m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15076 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
MSP
LAS
Good 6.6

comfortable seats

delay delay delay

ORD
MSP
Okay 4.0

I needed to run real fast to the connection flight and gladly got there on time.

SDQ
ATL
Excellent 8.0

Wasted my time on security and lost my flight

CMH
DTW
Excellent 8.6

Easy to board.

Delayed due to weather.

SLC
MEX
Good 7.0

They hade entertainment

No food

Thu, Mar 15
BUF
SJU
6h 00m
Tue, Mar 20
SJU
BUF
10h 27m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 53619 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
HNL
SFO
Okay 5.6

On time

Extremely crowded, uncomfortably so

PDX
SFO
Good 7.0

I liked that it was a short flight and that the over-head bins were big enough for my backpack.

I didn't like that my friends, who bought their tickets at the same time I did, with their own cards and checked in at the same time as me, didn't get a seat number. I had one assigned when my ticket printed out, after I checked in at the airport after they did. They had to wait until boarding was almost complete before they were afforded a seat. Seemed really strange. With United already having a bad name from recent stories on the news, it made us worry. Don't like worrying when it has anything to do with an airplane.

PHX
ORD
Mediocre 2.0

Nothing

I couldn't make my trip because of work. Therefore had to cancel but Lufthansa would not provide refund so I had a wasted ticket. Not happy

MRY
LAX
Mediocre 2.6

This was one of the worst domestic flights I’ve ever taken. United Airlines had a maintenance problem I’m delayed this plane by one hour every hour for six hours keeping us captive at the airport !! Horrible service horrible Airline I will try to avoid this at all costS.

SCL
IAH
Okay 4.3

I paid for extra space and it satisfy my needs.

The personnel service during the flight was mediocre. In my opinion they don’t know what is customer satisfaction. They have to show that they like what they do with a simple smile. They are not doing the customer a favor . That is their job a good customer satisfaction

Wed, May 16
BUF
SJU
7h 03m
Wed, May 23
SJU
BUF
6h 32m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, May 18
BUF
SJU
9h 07m
Tue, May 29
SJU
BUF
7h 33m
Trip: 12 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 7604 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
JFK
SYR
Okay 4.0

Had to wait in long line to get ticket and check bag. Pre-board line was not open. Long security line. Almost missed my connecting flight.

FLL
LIM
Mediocre 3.3

Enough leg room

A 5 hour fly with no food. charge me for coffee charge me for earphones $5, with no signal to watch a movie or tv it was delayed enough that I miss my connecting plane on latam to Montevideo.i was taken to a nice Sheraton till next night to fly in avianca.at nine pm. at 8 pm avianca cancel that trip so I was send to Chile. got there at 1pm, no luggage, wait till eight am for the fly to Uruguay got to my final destination 3days later,today is my 4day of my vacation with no luggage

LGB
JFK
Excellent 10.0

Dds

Sss

PDX
LGB
Excellent 8.0

my seat was dirty when I arrived and I had to clean food off of it.

JFK
HOU
Mediocre 2.0

flight was cancelled, and i want my refund back

Wed, Feb 14
BUF
SJU
6h 22m
Fri, Mar 2
SJU
BUF
7h 31m
Trip: 17 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15076 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ORD
MSP
Okay 4.0

I needed to run real fast to the connection flight and gladly got there on time.

YUL
MSP
Good 6.0

We got on the plane and it went to where it was supposed to go.

SLC
MEX
Good 7.0

They hade entertainment

No food

MSP
DSM
Good 6.0

The plane went where it was supposed to go.

CUN
MSP
Okay 4.3

The Cancun airport provides a terrible experience for transferring between flights, especially if you need to change from the international terminal to a domestic terminal or vice-versa. There is no way to get between terminals inside security and the free shuttle is slow and overcrowded. Meanwhile, one is forced to run a gauntlet of taxi and shuttle drivers trying to get you to pay them exorbitant fees to drive you to your terminal. Once you finally arrive you discover that there is no dedicated baggage recheck for an international arrival. Just don't buy a ticket that transfers in CUN.

Mon, Mar 12
BUF
SJU
6h 20m
Wed, Mar 14
SJU
BUF
9h 42m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 53619 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
MRY
LAX
Mediocre 2.6

This was one of the worst domestic flights I’ve ever taken. United Airlines had a maintenance problem I’m delayed this plane by one hour every hour for six hours keeping us captive at the airport !! Horrible service horrible Airline I will try to avoid this at all costS.

EWR
DFW
Okay 4.0

That i finally got hom

I called bc of weather issues, and it said you may have a wait time more than 30 minutes. I waited 2 hrs and 45 mins without any update on how much longer it would be. The website told me to go to the airport the day before to see a representative. I went to the airport and they told me call back or come back the next day. Information was all inaccurate and after another 55 min wait on the phone (stated “more than 30 mins) i got an agent and rebooked my ticket.

CLT
IAH
Okay 4.6

They never have enough food selections in First Class

SAV
EWR
Okay 4.0

Nothing

Everything

PDX
SFO
Good 7.0

I liked that it was a short flight and that the over-head bins were big enough for my backpack.

I didn't like that my friends, who bought their tickets at the same time I did, with their own cards and checked in at the same time as me, didn't get a seat number. I had one assigned when my ticket printed out, after I checked in at the airport after they did. They had to wait until boarding was almost complete before they were afforded a seat. Seemed really strange. With United already having a bad name from recent stories on the news, it made us worry. Don't like worrying when it has anything to do with an airplane.

Thu, Apr 5
BUF
SJU
6h 18m
Thu, Apr 19
SJU
BUF
7h 37m
Trip: 15 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15076 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
YUL
MSP
Good 6.0

We got on the plane and it went to where it was supposed to go.

ORD
MSP
Okay 4.0

I needed to run real fast to the connection flight and gladly got there on time.

SDQ
ATL
Excellent 8.0

Wasted my time on security and lost my flight

CMH
DTW
Excellent 8.6

Easy to board.

Delayed due to weather.

DTW
PHL
Excellent 8.0

Made it out of Detroit that same day! Friendly flight attendants!

Flight was delayed. And then cancelled. We were booked into a later flight 8 hours later that was also delayed again due to weather but we did make it out of Detroit that night. Other people were not as lucky.

Sat, Mar 24
BUF
SJU
6h 06m
Thu, Mar 29
SJU
BUF
16h 10m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 53619 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
PHL
Okay 5.0

Luggage took 30 minutes to get to pickup and it was covered in vinegar. The snacks on the ride really stink. A little bag of pretzels. Boarding and I boarding took forever

CLT
IAH
Okay 4.6

They never have enough food selections in First Class

MRY
LAX
Mediocre 2.6

This was one of the worst domestic flights I’ve ever taken. United Airlines had a maintenance problem I’m delayed this plane by one hour every hour for six hours keeping us captive at the airport !! Horrible service horrible Airline I will try to avoid this at all costS.

PDX
SFO
Good 7.0

I liked that it was a short flight and that the over-head bins were big enough for my backpack.

I didn't like that my friends, who bought their tickets at the same time I did, with their own cards and checked in at the same time as me, didn't get a seat number. I had one assigned when my ticket printed out, after I checked in at the airport after they did. They had to wait until boarding was almost complete before they were afforded a seat. Seemed really strange. With United already having a bad name from recent stories on the news, it made us worry. Don't like worrying when it has anything to do with an airplane.

IAH
SNA
Okay 5.0

Never enough food selections

Mon, Jan 15
BUF
SJU
18h 06m
Sun, Jan 21
SJU
BUF
6h 36m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27083 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
NRT
Excellent 8.0

Entertainment was great

Wish the seats could've been a bit more comfortable

DFW
TPA
Okay 4.0

Flight delay, no beverage service

MAD
JFK
Okay 4.6

Crew members were very humane and supportive.

We flew a transatlantic flight during storm Grayson in a 757. Not only it was irresponsable, but dangerous. Communications from the cockpit was poor.

DCA
ORD
Good 7.3

Seating is a bit cramped.

MCO
CLT
Okay 5.6

Plane on time plane in reasonable condition

American airlines keep increasing their greediness by charging for everything, provide fewer benefits to frequent flyers and have poor customer service They acting like United as if they are a monopoly that can charge what they want and treat customers like they feel like Hoping for small airlines that get a better service and price

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Buffalo to San Juan Luis Munoz Marin International Flight Information

Flights Arrive in San Juan Luis Munoz Marin International
Flights Depart from Buffalo
Flight Price $265
Distance 1849 miles
Airlines American Airlines, Delta, United, JetBlue